/* ========================================================================
 * Bootstrap: tooltip.js v3.3.4
 * http://getbootstrap.com/javascript/#tooltip
 * Inspired by the original jQuery.tipsy by Jason Frame
 * ========================================================================
 * Copyright 2011-2015 Twitter, Inc.
 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
 * ======================================================================== */


+function ($) {
  'use strict';

  // TOOLTIP PUBLIC CLASS DEFINITION
  // ===============================

  var Tooltip = function (element, options) {
    this.type       = null
    this.options    = null
    this.enabled    = null
    this.timeout    = null
    this.hoverState = null
    this.$element   = null

    this.init('tooltip', element, options)
  }

  Tooltip.VERSION  = '3.3.4'

  Tooltip.TRANSITION_DURATION = 150

  Tooltip.DEFAULTS = {
    animation: true,
    placement: 'top',
    selector: false,
    template: '<div class="tooltip" role="tooltip"><div class="tooltip-arrow"></div><div class="tooltip-inner"></div></div>',
    trigger: 'hover focus',
    title: '',
    delay: 0,
    html: false,
    container: false,
    viewport: {
      selector: 'body',
      padding: 0
    }
  }

  Tooltip.prototype.init = function (type, element, options) {
    this.enabled   = true
    this.type      = type
    this.$element  = $(element)
    this.options   = this.getOptions(options)
    this.$viewport = this.options.viewport && $(this.options.viewport.selector || this.options.viewport)

    if (this.$element[0] instanceof document.constructor && !this.options.selector) {
      throw new Error('`selector` option must be specified when initializing ' + this.type + ' on the window.document object!')
    }

    var triggers = this.options.trigger.split(' ')

    for (var i = triggers.length; i--;) {
      var trigger = triggers[i]

      if (trigger == 'click') {
        this.$element.on('click.' + this.type, this.options.selector, $.proxy(this.toggle, this))
      } else if (trigger != 'manual') {
        var eventIn  = trigger == 'hover' ? 'mouseenter' : 'focusin'
        var eventOut = trigger == 'hover' ? 'mouseleave' : 'focusout'

        this.$element.on(eventIn  + '.' + this.type, this.options.selector, $.proxy(this.enter, this))
        this.$element.on(eventOut + '.' + this.type, this.options.selector, $.proxy(this.leave, this))
      }
    }

    this.options.selector ?
      (this._options = $.extend({}, this.options, { trigger: 'manual', selector: '' })) :
      this.fixTitle()
  }

  Tooltip.prototype.getDefaults = function () {
    return Tooltip.DEFAULTS
  }

  Tooltip.prototype.getOptions = function (options) {
    options = $.extend({}, this.getDefaults(), this.$element.data(), options)

    if (options.delay && typeof options.delay == 'number') {
      options.delay = {
        show: options.delay,
        hide: options.delay
      }
    }

    return options
  }

  Tooltip.prototype.getDelegateOptions = function () {
    var options  = {}
    var defaults = this.getDefaults()

    this._options && $.each(this._options, function (key, value) {
      if (defaults[key] != value) options[key] = value
    })

    return options
  }

  Tooltip.prototype.enter = function (obj) {
    var self = obj instanceof this.constructor ?
      obj : $(obj.currentTarget).data('bs.' + this.type)

    if (self && self.$tip && self.$tip.is(':visible')) {
      self.hoverState = 'in'
      return
    }

    if (!self) {
      self = new this.constructor(obj.currentTarget, this.getDelegateOptions())
      $(obj.currentTarget).data('bs.' + this.type, self)
    }

    clearTimeout(self.timeout)

    self.hoverState = 'in'

    if (!self.options.delay || !self.options.delay.show) return self.show()

    self.timeout = setTimeout(function () {
      if (self.hoverState == 'in') self.show()
    }, self.options.delay.show)
  }

  Tooltip.prototype.leave = function (obj) {
    var self = obj instanceof this.constructor ?
      obj : $(obj.currentTarget).data('bs.' + this.type)

    if (!self) {
      self = new this.constructor(obj.currentTarget, this.getDelegateOptions())
      $(obj.currentTarget).data('bs.' + this.type, self)
    }

    clearTimeout(self.timeout)

    self.hoverState = 'out'

    if (!self.options.delay || !self.options.delay.hide) return self.hide()

    self.timeout = setTimeout(function () {
      if (self.hoverState == 'out') self.hide()
    }, self.options.delay.hide)
  }

  Tooltip.prototype.show = function () {
    var e = $.Event('show.bs.' + this.type)

    if (this.hasContent() && this.enabled) {
      this.$element.trigger(e)

      var inDom = $.contains(this.$element[0].ownerDocument.documentElement, this.$element[0])
      if (e.isDefaultPrevented() || !inDom) return
      var that = this

      var $tip = this.tip()

      var tipId = this.getUID(this.type)

      this.setContent()
      $tip.attr('id', tipId)
      this.$element.attr('aria-describedby', tipId)

      if (this.options.animation) $tip.addClass('fade')

      var placement = typeof this.options.placement == 'function' ?
        this.options.placement.call(this, $tip[0], this.$element[0]) :
        this.options.placement

      var autoToken = /\s?auto?\s?/i
      var autoPlace = autoToken.test(placement)
      if (autoPlace) placement = placement.replace(autoToken, '') || 'top'

      $tip
        .detach()
        .css({ top: 0, left: 0, display: 'block' })
        .addClass(placement)
        .data('bs.' + this.type, this)

      this.options.container ? $tip.appendTo(this.options.container) : $tip.insertAfter(this.$element)

      var pos          = this.getPosition()
      var actualWidth  = $tip[0].offsetWidth
      var actualHeight = $tip[0].offsetHeight

      if (autoPlace) {
        var orgPlacement = placement
        var $container   = this.options.container ? $(this.options.container) : this.$element.parent()
        var containerDim = this.getPosition($container)

        placement = placement == 'bottom' && pos.bottom + actualHeight > containerDim.bottom ? 'top'    :
                    placement == 'top'    && pos.top    - actualHeight < containerDim.top    ? 'bottom' :
                    placement == 'right'  && pos.right  + actualWidth  > containerDim.width  ? 'left'   :
                    placement == 'left'   && pos.left   - actualWidth  < containerDim.left   ? 'right'  :
                    placement

        $tip
          .removeClass(orgPlacement)
          .addClass(placement)
      }

      var calculatedOffset = this.getCalculatedOffset(placement, pos, actualWidth, actualHeight)

      this.applyPlacement(calculatedOffset, placement)

      var complete = function () {
        var prevHoverState = that.hoverState
        that.$element.trigger('shown.bs.' + that.type)
        that.hoverState = null

        if (prevHoverState == 'out') that.leave(that)
      }

      $.support.transition && this.$tip.hasClass('fade') ?
        $tip
          .one('bsTransitionEnd', complete)
          .emulateTransitionEnd(Tooltip.TRANSITION_DURATION) :
        complete()
    }
  }

  Tooltip.prototype.applyPlacement = function (offset, placement) {
    var $tip   = this.tip()
    var width  = $tip[0].offsetWidth
    var height = $tip[0].offsetHeight

    // manually read margins because getBoundingClientRect includes difference
    var marginTop = parseInt($tip.css('margin-top'), 10)
    var marginLeft = parseInt($tip.css('margin-left'), 10)

    // we must check for NaN for ie 8/9
    if (isNaN(marginTop))  marginTop  = 0
    if (isNaN(marginLeft)) marginLeft = 0

    offset.top  = offset.top  + marginTop
    offset.left = offset.left + marginLeft

    // $.fn.offset doesn't round pixel values
    // so we use setOffset directly with our own function B-0
    $.offset.setOffset($tip[0], $.extend({
      using: function (props) {
        $tip.css({
          top: Math.round(props.top),
          left: Math.round(props.left)
        })
      }
    }, offset), 0)

    $tip.addClass('in')

    // check to see if placing tip in new offset caused the tip to resize itself
    var actualWidth  = $tip[0].offsetWidth
    var actualHeight = $tip[0].offsetHeight

    if (placement == 'top' && actualHeight != height) {
      offset.top = offset.top + height - actualHeight
    }

    var delta = this.getViewportAdjustedDelta(placement, offset, actualWidth, actualHeight)

    if (delta.left) offset.left += delta.left
    else offset.top += delta.top

    var isVertical          = /top|bottom/.test(placement)
    var arrowDelta          = isVertical ? delta.left * 2 - width + actualWidth : delta.top * 2 - height + actualHeight
    var arrowOffsetPosition = isVertical ? 'offsetWidth' : 'offsetHeight'

    $tip.offset(offset)
    this.replaceArrow(arrowDelta, $tip[0][arrowOffsetPosition], isVertical)
  }

  Tooltip.prototype.replaceArrow = function (delta, dimension, isVertical) {
    this.arrow()
      .css(isVertical ? 'left' : 'top', 50 * (1 - delta / dimension) + '%')
      .css(isVertical ? 'top' : 'left', '')
  }

  Tooltip.prototype.setContent = function () {
    var $tip  = this.tip()
    var title = this.getTitle()

    $tip.find('.tooltip-inner')[this.options.html ? 'html' : 'text'](title)
    $tip.removeClass('fade in top bottom left right')
  }

  Tooltip.prototype.hide = function (callback) {
    var that = this
    var $tip = $(this.$tip)
    var e    = $.Event('hide.bs.' + this.type)

    function complete() {
      if (that.hoverState != 'in') $tip.detach()
      that.$element
        .removeAttr('aria-describedby')
        .trigger('hidden.bs.' + that.type)
      callback && callback()
    }

    this.$element.trigger(e)

    if (e.isDefaultPrevented()) return

    $tip.removeClass('in')

    $.support.transition && $tip.hasClass('fade') ?
      $tip
        .one('bsTransitionEnd', complete)
        .emulateTransitionEnd(Tooltip.TRANSITION_DURATION) :
      complete()

    this.hoverState = null

    return this
  }

  Tooltip.prototype.fixTitle = function () {
    var $e = this.$element
    if ($e.attr('title') || typeof ($e.attr('data-original-title')) != 'string') {
      $e.attr('data-original-title', $e.attr('title') || '').attr('title', '')
    }
  }

  Tooltip.prototype.hasContent = function () {
    return this.getTitle()
  }

  Tooltip.prototype.getPosition = function ($element) {
    $element   = $element || this.$element

    var el     = $element[0]
    var isBody = el.tagName == 'BODY'

    var elRect    = el.getBoundingClientRect()
    if (elRect.width == null) {
      // width and height are missing in IE8, so compute them manually; see https://github.com/twbs/bootstrap/issues/14093
      elRect = $.extend({}, elRect, { width: elRect.right - elRect.left, height: elRect.bottom - elRect.top })
    }
    var elOffset  = isBody ? { top: 0, left: 0 } : $element.offset()
    var scroll    = { scroll: isBody ? document.documentElement.scrollTop || document.body.scrollTop : $element.scrollTop() }
    var outerDims = isBody ? { width: $(window).width(), height: $(window).height() } : null

    return $.extend({}, elRect, scroll, outerDims, elOffset)
  }

  Tooltip.prototype.getCalculatedOffset = function (placement, pos, actualWidth, actualHeight) {
    return placement == 'bottom' ? { top: pos.top + pos.height,   left: pos.left + pos.width / 2 - actualWidth / 2 } :
           placement == 'top'    ? { top: pos.top - actualHeight, left: pos.left + pos.width / 2 - actualWidth / 2 } :
           placement == 'left'   ? { top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left - actualWidth } :
        /* placement == 'right' */ { top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left + pos.width }

  }

  Tooltip.prototype.getViewportAdjustedDelta = function (placement, pos, actualWidth, actualHeight) {
    var delta = { top: 0, left: 0 }
    if (!this.$viewport) return delta

    var viewportPadding = this.options.viewport && this.options.viewport.padding || 0
    var viewportDimensions = this.getPosition(this.$viewport)

    if (/right|left/.test(placement)) {
      var topEdgeOffset    = pos.top - viewportPadding - viewportDimensions.scroll
      var bottomEdgeOffset = pos.top + viewportPadding - viewportDimensions.scroll + actualHeight
      if (topEdgeOffset < viewportDimensions.top) { // top overflow
        delta.top = viewportDimensions.top - topEdgeOffset
      } else if (bottomEdgeOffset > viewportDimensions.top + viewportDimensions.height) { // bottom overflow
        delta.top = viewportDimensions.top + viewportDimensions.height - bottomEdgeOffset
      }
    } else {
      var leftEdgeOffset  = pos.left - viewportPadding
      var rightEdgeOffset = pos.left + viewportPadding + actualWidth
      if (leftEdgeOffset < viewportDimensions.left) { // left overflow
        delta.left = viewportDimensions.left - leftEdgeOffset
      } else if (rightEdgeOffset > viewportDimensions.width) { // right overflow
        delta.left = viewportDimensions.left + viewportDimensions.width - rightEdgeOffset
      }
    }

    return delta
  }

  Tooltip.prototype.getTitle = function () {
    var title
    var $e = this.$element
    var o  = this.options

    title = $e.attr('data-original-title')
      || (typeof o.title == 'function' ? o.title.call($e[0]) :  o.title)

    return title
  }

  Tooltip.prototype.getUID = function (prefix) {
    do prefix += ~~(Math.random() * 1000000)
    while (document.getElementById(prefix))
    return prefix
  }

  Tooltip.prototype.tip = function () {
    return (this.$tip = this.$tip || $(this.options.template))
  }

  Tooltip.prototype.arrow = function () {
    return (this.$arrow = this.$arrow || this.tip().find('.tooltip-arrow'))
  }

  Tooltip.prototype.enable = function () {
    this.enabled = true
  }

  Tooltip.prototype.disable = function () {
    this.enabled = false
  }

  Tooltip.prototype.toggleEnabled = function () {
    this.enabled = !this.enabled
  }

  Tooltip.prototype.toggle = function (e) {
    var self = this
    if (e) {
      self = $(e.currentTarget).data('bs.' + this.type)
      if (!self) {
        self = new this.constructor(e.currentTarget, this.getDelegateOptions())
        $(e.currentTarget).data('bs.' + this.type, self)
      }
    }

    self.tip().hasClass('in') ? self.leave(self) : self.enter(self)
  }

  Tooltip.prototype.destroy = function () {
    var that = this
    clearTimeout(this.timeout)
    this.hide(function () {
      that.$element.off('.' + that.type).removeData('bs.' + that.type)
    })
  }


  // TOOLTIP PLUGIN DEFINITION
  // =========================

  function Plugin(option) {
    return this.each(function () {
      var $this   = $(this)
      var data    = $this.data('bs.tooltip')
      var options = typeof option == 'object' && option

      if (!data && /destroy|hide/.test(option)) return
      if (!data) $this.data('bs.tooltip', (data = new Tooltip(this, options)))
      if (typeof option == 'string') data[option]()
    })
  }

  var old = $.fn.tooltip

  $.fn.tooltip             = Plugin
  $.fn.tooltip.Constructor = Tooltip


  // TOOLTIP NO CONFLICT
  // ===================

  $.fn.tooltip.noConflict = function () {
    $.fn.tooltip = old
    return this
  }

}(jQuery);

/*
 *  webui popover plugin  - v1.2.17
 *  A lightWeight popover plugin with jquery ,enchance the  popover plugin of bootstrap with some awesome new features. It works well with bootstrap ,but bootstrap is not necessary!
 *  https://github.com/sandywalker/webui-popover
 *
 *  Made by Sandy Duan
 *  Under MIT License
 */
(function(window, document, undefined) {
    'use strict';
    (function(factory) {
        if (typeof define === 'function' && define.amd) {
            // Register as an anonymous AMD module.
            define(['jquery'], factory);
        } else if (typeof exports === 'object') {
            // Node/CommonJS
            module.exports = factory(require('jquery'));
        } else {
            // Browser globals
            factory(window.jQuery);
        }
    }(function($) {
        // Create the defaults once
        var pluginName = 'webuiPopover';
        var pluginClass = 'webui-popover';
        var pluginType = 'webui.popover';
        var defaults = {
            placement: 'auto',
            container: null,
            width: 'auto',
            height: 'auto',
            trigger: 'click', //hover,click,sticky,manual
            style: '',
            selector: false, // jQuery selector, if a selector is provided, popover objects will be delegated to the specified. 
            delay: {
                show: null,
                hide: 300
            },
            async: {
                type: 'GET',
                before: null, //function(that, xhr, settings){}
                success: null, //function(that, xhr){}
                error: null //function(that, xhr, data){}
            },
            cache: true,
            multi: false,
            arrow: true,
            title: '',
            content: '',
            closeable: false,
            padding: true,
            url: '',
            type: 'html',
            direction: '', // ltr,rtl
            animation: null,
            template: '<div class="webui-popover">' +
                '<div class="webui-arrow"></div>' +
                '<div class="webui-popover-inner">' +
                '<a href="#" class="close"></a>' +
                '<h3 class="webui-popover-title"></h3>' +
                '<div class="webui-popover-content"><i class="icon-refresh"></i> <p>&nbsp;</p></div>' +
                '</div>' +
                '</div>',
            backdrop: false,
            dismissible: true,
            onShow: null,
            onHide: null,
            abortXHR: true,
            autoHide: false,
            offsetTop: 0,
            offsetLeft: 0,
            iframeOptions: {
                frameborder: '0',
                allowtransparency: 'true',
                id: '',
                name: '',
                scrolling: '',
                onload: '',
                height: '',
                width: ''
            },
            hideEmpty: false
        };

        var rtlClass = pluginClass + '-rtl';
        var _srcElements = [];
        var backdrop = $('<div class="webui-popover-backdrop"></div>');
        var _globalIdSeed = 0;
        var _isBodyEventHandled = false;
        var _offsetOut = -2000; // the value offset  out of the screen
        var $document = $(document);

        var toNumber = function(numeric, fallback) {
            return isNaN(numeric) ? (fallback || 0) : Number(numeric);
        };

        var getPopFromElement = function($element) {
            return $element.data('plugin_' + pluginName);
        };

        var hideAllPop = function() {
            var pop = null;
            for (var i = 0; i < _srcElements.length; i++) {
                pop = getPopFromElement(_srcElements[i]);
                if (pop) {
                    pop.hide(true);
                }
            }
            $document.trigger('hiddenAll.' + pluginType);
        };

        var hideOtherPops = function(currentPop) {
            var pop = null;
            for (var i = 0; i < _srcElements.length; i++) {
                pop = getPopFromElement(_srcElements[i]);
                if (pop && pop.id !== currentPop.id) {
                    pop.hide(true);
                }
            }
            $document.trigger('hiddenAll.' + pluginType);
        };

        var isMobile = ('ontouchstart' in document.documentElement) && (/Mobi/.test(navigator.userAgent));

        var pointerEventToXY = function(e) {
            var out = {
                x: 0,
                y: 0
            };
            if (e.type === 'touchstart' || e.type === 'touchmove' || e.type === 'touchend' || e.type === 'touchcancel') {
                var touch = e.originalEvent.touches[0] || e.originalEvent.changedTouches[0];
                out.x = touch.pageX;
                out.y = touch.pageY;
            } else if (e.type === 'mousedown' || e.type === 'mouseup' || e.type === 'click') {
                out.x = e.pageX;
                out.y = e.pageY;
            }
            return out;
        };



        // The actual plugin constructor
        function WebuiPopover(element, options) {
            this.$element = $(element);
            if (options) {
                if ($.type(options.delay) === 'string' || $.type(options.delay) === 'number') {
                    options.delay = {
                        show: options.delay,
                        hide: options.delay
                    }; // bc break fix
                }
            }
            this.options = $.extend({}, defaults, options);
            this._defaults = defaults;
            this._name = pluginName;
            this._targetclick = false;
            this.init();
            _srcElements.push(this.$element);
            return this;

        }

        WebuiPopover.prototype = {
            //init webui popover
            init: function() {
                if (this.$element[0] instanceof document.constructor && !this.options.selector) {
                    throw new Error('`selector` option must be specified when initializing ' + this.type + ' on the window.document object!');
                }

                if (this.getTrigger() !== 'manual') {
                    //init the event handlers
                    if (isMobile) {
                        this.$element.off('touchend', this.options.selector).on('touchend', this.options.selector, $.proxy(this.toggle, this));
                    } else if (this.getTrigger() === 'click') {
                        this.$element.off('click', this.options.selector).on('click', this.options.selector, $.proxy(this.toggle, this));
                    } else if (this.getTrigger() === 'hover') {
                        this.$element
                            .off('mouseenter mouseleave click', this.options.selector)
                            .on('mouseenter', this.options.selector, $.proxy(this.mouseenterHandler, this))
                            .on('mouseleave', this.options.selector, $.proxy(this.mouseleaveHandler, this));
                    }
                }
                this._poped = false;
                this._inited = true;
                this._opened = false;
                this._idSeed = _globalIdSeed;
                this.id = pluginName + this._idSeed;
                // normalize container
                this.options.container = $(this.options.container || document.body).first();

                if (this.options.backdrop) {
                    backdrop.appendTo(this.options.container).hide();
                }
                _globalIdSeed++;
                if (this.getTrigger() === 'sticky') {
                    this.show();
                }

                if (this.options.selector) {
                    this._options = $.extend({}, this.options, {
                        selector: ''
                    });
                }

            },
            /* api methods and actions */
            destroy: function() {
                var index = -1;

                for (var i = 0; i < _srcElements.length; i++) {
                    if (_srcElements[i] === this.$element) {
                        index = i;
                        break;
                    }
                }

                _srcElements.splice(index, 1);


                this.hide();
                this.$element.data('plugin_' + pluginName, null);
                if (this.getTrigger() === 'click') {
                    this.$element.off('click');
                } else if (this.getTrigger() === 'hover') {
                    this.$element.off('mouseenter mouseleave');
                }
                if (this.$target) {
                    this.$target.remove();
                }
            },
            getDelegateOptions: function() {
                var options = {};

                this._options && $.each(this._options, function(key, value) {
                    if (defaults[key] !== value) {
                        options[key] = value;
                    }
                });
                return options;
            },
            /*
                param: force    boolean value, if value is true then force hide the popover
                param: event    dom event,
            */
            hide: function(force, event) {

                if (!force && this.getTrigger() === 'sticky') {
                    return;
                }
                if (!this._opened) {
                    return;
                }
                if (event) {
                    event.preventDefault();
                    event.stopPropagation();
                }

                if (this.xhr && this.options.abortXHR === true) {
                    this.xhr.abort();
                    this.xhr = null;
                }


                var e = $.Event('hide.' + pluginType);
                this.$element.trigger(e, [this.$target]);
                if (this.$target) {
                    this.$target.removeClass('in').addClass(this.getHideAnimation());
                    var that = this;
                    setTimeout(function() {
                        that.$target.hide();
                        if (!that.getCache()) {
                            that.$target.remove();
                            //that.getTriggerElement.removeAttr('data-target');
                        }
                    }, that.getHideDelay());
                }
                if (this.options.backdrop) {
                    backdrop.hide();
                }
                this._opened = false;
                this.$element.trigger('hidden.' + pluginType, [this.$target]);

                if (this.options.onHide) {
                    this.options.onHide(this.$target);
                }

            },
            resetAutoHide: function() {
                var that = this;
                var autoHide = that.getAutoHide();
                if (autoHide) {
                    if (that.autoHideHandler) {
                        clearTimeout(that.autoHideHandler);
                    }
                    that.autoHideHandler = setTimeout(function() {
                        that.hide();
                    }, autoHide);
                }
            },
            delegate: function(eventTarget) {
                var self = $(eventTarget).data('plugin_' + pluginName);
                if (!self) {
                    self = new WebuiPopover(eventTarget, this.getDelegateOptions());
                    $(eventTarget).data('plugin_' + pluginName, self);
                }
                return self;
            },
            toggle: function(e) {
                var self = this;
                if (e) {
                    e.preventDefault();
                    e.stopPropagation();
                    if (this.options.selector) {
                        self = this.delegate(e.currentTarget);
                    }
                }
                self[self.getTarget().hasClass('in') ? 'hide' : 'show']();
            },
            hideAll: function() {
                hideAllPop();
            },
            hideOthers: function() {
                hideOtherPops(this);
            },
            /*core method ,show popover */
            show: function() {
                if (this._opened) {
                    return;
                }
                //removeAllTargets();
                var
                    $target = this.getTarget().removeClass().addClass(pluginClass).addClass(this._customTargetClass);
                if (!this.options.multi) {
                    this.hideOthers();
                }

                // use cache by default, if not cache setted  , reInit the contents
                if (!this.getCache() || !this._poped || this.content === '') {
                    this.content = '';
                    this.setTitle(this.getTitle());
                    if (!this.options.closeable) {
                        $target.find('.close').off('click').remove();
                    }
                    if (!this.isAsync()) {
                        this.setContent(this.getContent());
                    } else {
                        this.setContentASync(this.options.content);
                    }

                    if (this.canEmptyHide() && this.content === '') {
                        return;
                    }
                    $target.show();
                }

                this.displayContent();

                if (this.options.onShow) {
                    this.options.onShow($target);
                }

                this.bindBodyEvents();
                if (this.options.backdrop) {
                    backdrop.show();
                }
                this._opened = true;
                this.resetAutoHide();
            },
            displayContent: function() {
                var
                //element postion
                    elementPos = this.getElementPosition(),
                    //target postion
                    $target = this.getTarget().removeClass().addClass(pluginClass).addClass(this._customTargetClass),
                    //target content
                    $targetContent = this.getContentElement(),
                    //target Width
                    targetWidth = $target[0].offsetWidth,
                    //target Height
                    targetHeight = $target[0].offsetHeight,
                    //placement
                    placement = 'bottom',
                    e = $.Event('show.' + pluginType);

                if (this.canEmptyHide()) {

                    var content = $targetContent.children().html();
                    if (content !== null && content.trim().length === 0) {
                        return;
                    }
                }

                //if (this.hasContent()){
                this.$element.trigger(e, [$target]);
                //}
                // support width as data attribute
                var optWidth = this.$element.data('width') || this.options.width;
                if (optWidth === '') {
                    optWidth = this._defaults.width;
                }

                if (optWidth !== 'auto') {
                    $target.width(optWidth);
                }

                // support height as data attribute
                var optHeight = this.$element.data('height') || this.options.height;
                if (optHeight === '') {
                    optHeight = this._defaults.height;
                }

                if (optHeight !== 'auto') {
                    $targetContent.height(optHeight);
                }

                if (this.options.style) {
                    this.$target.addClass(pluginClass + '-' + this.options.style);
                }

                //check rtl
                if (this.options.direction === 'rtl' && !$targetContent.hasClass(rtlClass)) {
                    $targetContent.addClass(rtlClass);
                }

                //init the popover and insert into the document body
                if (!this.options.arrow) {
                    $target.find('.webui-arrow').remove();
                }
                $target.detach().css({
                    top: _offsetOut,
                    left: _offsetOut,
                    display: 'block'
                });

                if (this.getAnimation()) {
                    $target.addClass(this.getAnimation());
                }
                $target.appendTo(this.options.container);


                placement = this.getPlacement(elementPos);

                //This line is just for compatible with knockout custom binding
                this.$element.trigger('added.' + pluginType);

                this.initTargetEvents();

                if (!this.options.padding) {
                    if (this.options.height !== 'auto') {
                        $targetContent.css('height', $targetContent.outerHeight());
                    }
                    this.$target.addClass('webui-no-padding');
                }

                // add maxHeight and maxWidth support by limodou@gmail.com 2016/10/1
                if (this.options.maxHeight) {
                    $targetContent.css('maxHeight', this.options.maxHeight);
                }

                if (this.options.maxWidth) {
                    $targetContent.css('maxWidth', this.options.maxWidth);
                }
                // end

                targetWidth = $target[0].offsetWidth;
                targetHeight = $target[0].offsetHeight;

                var postionInfo = this.getTargetPositin(elementPos, placement, targetWidth, targetHeight);

                this.$target.css(postionInfo.position).addClass(placement).addClass('in');

                if (this.options.type === 'iframe') {
                    var $iframe = $target.find('iframe');
                    var iframeWidth = $target.width();
                    var iframeHeight = $iframe.parent().height();

                    if (this.options.iframeOptions.width !== '' && this.options.iframeOptions.width !== 'auto') {
                        iframeWidth = this.options.iframeOptions.width;
                    }

                    if (this.options.iframeOptions.height !== '' && this.options.iframeOptions.height !== 'auto') {
                        iframeHeight = this.options.iframeOptions.height;
                    }

                    $iframe.width(iframeWidth).height(iframeHeight);
                }

                if (!this.options.arrow) {
                    this.$target.css({
                        'margin': 0
                    });
                }
                if (this.options.arrow) {
                    var $arrow = this.$target.find('.webui-arrow');
                    $arrow.removeAttr('style');

                    //prevent arrow change by content size
                    if (placement === 'left' || placement === 'right') {
                        $arrow.css({
                            top: this.$target.height() / 2
                        });
                    } else if (placement === 'top' || placement === 'bottom') {
                        $arrow.css({
                            left: this.$target.width() / 2
                        });
                    }

                    if (postionInfo.arrowOffset) {
                        //hide the arrow if offset is negative
                        if (postionInfo.arrowOffset.left === -1 || postionInfo.arrowOffset.top === -1) {
                            $arrow.hide();
                        } else {
                            $arrow.css(postionInfo.arrowOffset);
                        }
                    }

                }
                this._poped = true;
                this.$element.trigger('shown.' + pluginType, [this.$target]);
            },

            isTargetLoaded: function() {
                return this.getTarget().find('i.glyphicon-refresh').length === 0;
            },

            /*getter setters */
            getTriggerElement: function() {
                return this.$element;
            },
            getTarget: function() {
                if (!this.$target) {
                    var id = pluginName + this._idSeed;
                    this.$target = $(this.options.template)
                        .attr('id', id);
                    this._customTargetClass = this.$target.attr('class') !== pluginClass ? this.$target.attr('class') : null;
                    this.getTriggerElement().attr('data-target', id);
                }
                if (!this.$target.data('trigger-element')) {
                    this.$target.data('trigger-element', this.getTriggerElement());
                }
                return this.$target;
            },
            removeTarget: function() {
                this.$target.remove();
                this.$target = null;
                this.$contentElement = null;
            },
            getTitleElement: function() {
                return this.getTarget().find('.' + pluginClass + '-title');
            },
            getContentElement: function() {
                if (!this.$contentElement) {
                    this.$contentElement = this.getTarget().find('.' + pluginClass + '-content');
                }
                return this.$contentElement;
            },
            getTitle: function() {
                return this.$element.attr('data-title') || this.options.title || this.$element.attr('title');
            },
            getUrl: function() {
                return this.$element.attr('data-url') || this.options.url;
            },
            getAutoHide: function() {
                return this.$element.attr('data-auto-hide') || this.options.autoHide;
            },
            getOffsetTop: function() {
                return toNumber(this.$element.attr('data-offset-top')) || this.options.offsetTop;
            },
            getOffsetLeft: function() {
                return toNumber(this.$element.attr('data-offset-left')) || this.options.offsetLeft;
            },
            getCache: function() {
                var dataAttr = this.$element.attr('data-cache');
                if (typeof(dataAttr) !== 'undefined') {
                    switch (dataAttr.toLowerCase()) {
                        case 'true':
                        case 'yes':
                        case '1':
                            return true;
                        case 'false':
                        case 'no':
                        case '0':
                            return false;
                    }
                }
                return this.options.cache;
            },
            getTrigger: function() {
                return this.$element.attr('data-trigger') || this.options.trigger;
            },
            getDelayShow: function() {
                var dataAttr = this.$element.attr('data-delay-show');
                if (typeof(dataAttr) !== 'undefined') {
                    return dataAttr;
                }
                return this.options.delay.show === 0 ? 0 : this.options.delay.show || 100;
            },
            getHideDelay: function() {
                var dataAttr = this.$element.attr('data-delay-hide');
                if (typeof(dataAttr) !== 'undefined') {
                    return dataAttr;
                }
                return this.options.delay.hide === 0 ? 0 : this.options.delay.hide || 100;
            },
            getAnimation: function() {
                var dataAttr = this.$element.attr('data-animation');
                return dataAttr || this.options.animation;
            },
            getHideAnimation: function() {
                var ani = this.getAnimation();
                return ani ? ani + '-out' : 'out';
            },
            setTitle: function(title) {
                var $titleEl = this.getTitleElement();
                if (title) {
                    //check rtl
                    if (this.options.direction === 'rtl' && !$titleEl.hasClass(rtlClass)) {
                        $titleEl.addClass(rtlClass);
                    }
                    $titleEl.html(title);
                } else {
                    $titleEl.remove();
                }
            },
            hasContent: function() {
                return this.getContent();
            },
            canEmptyHide: function() {
                return this.options.hideEmpty && this.options.type === 'html';
            },
            getIframe: function() {
                var $iframe = $('<iframe></iframe>').attr('src', this.getUrl());
                var self = this;
                $.each(this._defaults.iframeOptions, function(opt) {
                    if (typeof self.options.iframeOptions[opt] !== 'undefined') {
                        $iframe.attr(opt, self.options.iframeOptions[opt]);
                    }
                });

                return $iframe;
            },
            getContent: function() {
                if (this.getUrl()) {
                    switch (this.options.type) {
                        case 'iframe':
                            this.content = this.getIframe();
                            break;
                        case 'html':
                            try {
                                this.content = $(this.getUrl());
                                if (!this.content.is(':visible')) {
                                    this.content.show();
                                }
                            } catch (error) {
                                throw new Error('Unable to get popover content. Invalid selector specified.');
                            }
                            break;
                    }
                } else if (!this.content) {
                    var content = '';
                    if ($.isFunction(this.options.content)) {
                        content = this.options.content.apply(this.$element[0], [this]);
                    } else {
                        content = this.options.content;
                    }
                    this.content = this.$element.attr('data-content') || content;
                    if (!this.content) {
                        var $next = this.$element.next();

                        if ($next && $next.hasClass(pluginClass + '-content')) {
                            this.content = $next;
                        }
                    }
                }
                return this.content;
            },
            setContent: function(content) {
                var $target = this.getTarget();
                var $ct = this.getContentElement();
                if (typeof content === 'string') {
                    $ct.html(content);
                } else if (content instanceof $) {
                    $ct.html('');
                    //Don't want to clone too many times.
                    if (!this.options.cache) {
                        content.clone(true, true).removeClass(pluginClass + '-content').appendTo($ct);
                    } else {
                        content.removeClass(pluginClass + '-content').appendTo($ct);
                    }
                }
                this.$target = $target;
            },
            isAsync: function() {
                return this.options.type === 'async';
            },
            setContentASync: function(content) {
                var that = this;
                if (this.xhr) {
                    return;
                }
                this.xhr = $.ajax({
                    url: this.getUrl(),
                    type: this.options.async.type,
                    cache: this.getCache(),
                    beforeSend: function(xhr, settings) {
                        if (that.options.async.before) {
                            that.options.async.before(that, xhr, settings);
                        }
                    },
                    success: function(data) {
                        that.bindBodyEvents();
                        if (content && $.isFunction(content)) {
                            that.content = content.apply(that.$element[0], [data]);
                        } else {
                            that.content = data;
                        }
                        that.setContent(that.content);
                        var $targetContent = that.getContentElement();
                        $targetContent.removeAttr('style');
                        that.displayContent();
                        if (that.options.async.success) {
                            that.options.async.success(that, data);
                        }
                    },
                    complete: function() {
                        that.xhr = null;
                    },
                    error: function(xhr, data) {
                        if (that.options.async.error) {
                            that.options.async.error(that, xhr, data);
                        }
                    }
                });
            },

            bindBodyEvents: function() {
                if (_isBodyEventHandled) {
                    return;
                }
                if (this.options.dismissible && this.getTrigger() === 'click') {
                    if (isMobile) {
                        $document.off('touchstart.webui-popover').on('touchstart.webui-popover', $.proxy(this.bodyTouchStartHandler, this));
                    } else {
                        $document.off('keyup.webui-popover').on('keyup.webui-popover', $.proxy(this.escapeHandler, this));
                        $document.off('click.webui-popover').on('click.webui-popover', $.proxy(this.bodyClickHandler, this));
                    }
                } else if (this.getTrigger() === 'hover') {
                    $document.off('touchend.webui-popover')
                        .on('touchend.webui-popover', $.proxy(this.bodyClickHandler, this));
                }
            },

            /* event handlers */
            mouseenterHandler: function(e) {
                var self = this;

                if (e && this.options.selector) {
                    self = this.delegate(e.currentTarget);
                }

                if (self._timeout) {
                    clearTimeout(self._timeout);
                }
                self._enterTimeout = setTimeout(function() {
                    if (!self.getTarget().is(':visible')) {
                        self.show();
                    }
                }, this.getDelayShow());
            },
            mouseleaveHandler: function() {
                var self = this;
                clearTimeout(self._enterTimeout);
                //key point, set the _timeout  then use clearTimeout when mouse leave
                self._timeout = setTimeout(function() {
                    self.hide();
                }, this.getHideDelay());
            },
            escapeHandler: function(e) {
                if (e.keyCode === 27) {
                    this.hideAll();
                }
            },
            bodyTouchStartHandler: function(e) {
                var self = this;
                var $eventEl = $(e.currentTarget);
                $eventEl.on('touchend', function(e) {
                    self.bodyClickHandler(e);
                    $eventEl.off('touchend');
                });
                $eventEl.on('touchmove', function() {
                    $eventEl.off('touchend');
                });
            },
            bodyClickHandler: function(e) {
                _isBodyEventHandled = true;
                var canHide = true;
                for (var i = 0; i < _srcElements.length; i++) {
                    var pop = getPopFromElement(_srcElements[i]);
                    if (pop && pop._opened) {
                        var offset = pop.getTarget().offset();
                        var popX1 = offset.left;
                        var popY1 = offset.top;
                        var popX2 = offset.left + pop.getTarget().width();
                        var popY2 = offset.top + pop.getTarget().height();
                        var pt = pointerEventToXY(e);
                        var inPop = pt.x >= popX1 && pt.x <= popX2 && pt.y >= popY1 && pt.y <= popY2;
                        if (inPop) {
                            canHide = false;
                            break;
                        }
                    }
                }
                if (canHide) {
                    hideAllPop();
                }
            },

            /*
            targetClickHandler: function() {
                this._targetclick = true;
            },
            */

            //reset and init the target events;
            initTargetEvents: function() {
                if (this.getTrigger() === 'hover') {
                    this.$target
                        .off('mouseenter mouseleave')
                        .on('mouseenter', $.proxy(this.mouseenterHandler, this))
                        .on('mouseleave', $.proxy(this.mouseleaveHandler, this));
                }
                this.$target.find('.close').off('click').on('click', $.proxy(this.hide, this, true));
                //this.$target.off('click.webui-popover').on('click.webui-popover', $.proxy(this.targetClickHandler, this));
            },
            /* utils methods */
            //caculate placement of the popover
            getPlacement: function(pos) {
                var
                    placement,
                    container = this.options.container,
                    clientWidth = container.innerWidth(),
                    clientHeight = container.innerHeight(),
                    scrollTop = container.scrollTop(),
                    scrollLeft = container.scrollLeft(),
                    pageX = Math.max(0, pos.left - scrollLeft),
                    pageY = Math.max(0, pos.top - scrollTop);
                //arrowSize = 20;

                //if placement equals auto，caculate the placement by element information;
                if (typeof(this.options.placement) === 'function') {
                    placement = this.options.placement.call(this, this.getTarget()[0], this.$element[0]);
                } else {
                    placement = this.$element.data('placement') || this.options.placement;
                }

                var isH = placement === 'horizontal';
                var isV = placement === 'vertical';
                var detect = placement === 'auto' || isH || isV;

                if (detect) {
                    if (pageX < clientWidth / 3) {
                        if (pageY < clientHeight / 3) {
                            placement = isH ? 'right-bottom' : 'bottom-right';
                        } else if (pageY < clientHeight * 2 / 3) {
                            if (isV) {
                                placement = pageY <= clientHeight / 2 ? 'bottom-right' : 'top-right';
                            } else {
                                placement = 'right';
                            }
                        } else {
                            placement = isH ? 'right-top' : 'top-right';
                        }
                        //placement= pageY>targetHeight+arrowSize?'top-right':'bottom-right';
                    } else if (pageX < clientWidth * 2 / 3) {
                        if (pageY < clientHeight / 3) {
                            if (isH) {
                                placement = pageX <= clientWidth / 2 ? 'right-bottom' : 'left-bottom';
                            } else {
                                placement = 'bottom';
                            }
                        } else if (pageY < clientHeight * 2 / 3) {
                            if (isH) {
                                placement = pageX <= clientWidth / 2 ? 'right' : 'left';
                            } else {
                                placement = pageY <= clientHeight / 2 ? 'bottom' : 'top';
                            }
                        } else {
                            if (isH) {
                                placement = pageX <= clientWidth / 2 ? 'right-top' : 'left-top';
                            } else {
                                placement = 'top';
                            }
                        }
                    } else {
                        //placement = pageY>targetHeight+arrowSize?'top-left':'bottom-left';
                        if (pageY < clientHeight / 3) {
                            placement = isH ? 'left-bottom' : 'bottom-left';
                        } else if (pageY < clientHeight * 2 / 3) {
                            if (isV) {
                                placement = pageY <= clientHeight / 2 ? 'bottom-left' : 'top-left';
                            } else {
                                placement = 'left';
                            }
                        } else {
                            placement = isH ? 'left-top' : 'top-left';
                        }
                    }
                } else if (placement === 'auto-top') {
                    if (pageX < clientWidth / 3) {
                        placement = 'top-right';
                    } else if (pageX < clientWidth * 2 / 3) {
                        placement = 'top';
                    } else {
                        placement = 'top-left';
                    }
                } else if (placement === 'auto-bottom') {
                    if (pageX < clientWidth / 3) {
                        placement = 'bottom-right';
                    } else if (pageX < clientWidth * 2 / 3) {
                        placement = 'bottom';
                    } else {
                        placement = 'bottom-left';
                    }
                } else if (placement === 'auto-left') {
                    if (pageY < clientHeight / 3) {
                        placement = 'left-top';
                    } else if (pageY < clientHeight * 2 / 3) {
                        placement = 'left';
                    } else {
                        placement = 'left-bottom';
                    }
                } else if (placement === 'auto-right') {
                    if (pageY < clientHeight / 3) {
                        placement = 'right-bottom';
                    } else if (pageY < clientHeight * 2 / 3) {
                        placement = 'right';
                    } else {
                        placement = 'right-top';
                    }
                }
                return placement;
            },
            getElementPosition: function() {
                // If the container is the body or normal conatiner, just use $element.offset()
                var elRect = this.$element[0].getBoundingClientRect();
                var container = this.options.container;
                var cssPos = container.css('position');

                if (container.is(document.body) || cssPos === 'static') {
                    return $.extend({}, this.$element.offset(), {
                        width: this.$element[0].offsetWidth || elRect.width,
                        height: this.$element[0].offsetHeight || elRect.height
                    });
                    // Else fixed container need recalculate the  position
                } else if (cssPos === 'fixed') {
                    var containerRect = container[0].getBoundingClientRect();
                    return {
                        top: elRect.top - containerRect.top + container.scrollTop(),
                        left: elRect.left - containerRect.left + container.scrollLeft(),
                        width: elRect.width,
                        height: elRect.height
                    };
                } else if (cssPos === 'relative') {
                    return {
                        top: this.$element.offset().top - container.offset().top,
                        left: this.$element.offset().left - container.offset().left,
                        width: this.$element[0].offsetWidth || elRect.width,
                        height: this.$element[0].offsetHeight || elRect.height
                    };
                }
            },

            getTargetPositin: function(elementPos, placement, targetWidth, targetHeight) {
                var pos = elementPos,
                    container = this.options.container,
                    //clientWidth = container.innerWidth(),
                    //clientHeight = container.innerHeight(),
                    elementW = this.$element.outerWidth(),
                    elementH = this.$element.outerHeight(),
                    scrollTop = document.documentElement.scrollTop + container.scrollTop(),
                    scrollLeft = document.documentElement.scrollLeft + container.scrollLeft(),
                    position = {},
                    arrowOffset = null,
                    arrowSize = this.options.arrow ? 20 : 0,
                    padding = 10,
                    fixedW = elementW < arrowSize + padding ? arrowSize : 0,
                    fixedH = elementH < arrowSize + padding ? arrowSize : 0,
                    refix = 0,
                    pageH = document.documentElement.clientHeight + scrollTop,
                    pageW = document.documentElement.clientWidth + scrollLeft;

                var validLeft = pos.left + pos.width / 2 - fixedW > 0;
                var validRight = pos.left + pos.width / 2 + fixedW < pageW;
                var validTop = pos.top + pos.height / 2 - fixedH > 0;
                var validBottom = pos.top + pos.height / 2 + fixedH < pageH;


                switch (placement) {
                    case 'bottom':
                        position = {
                            top: pos.top + pos.height,
                            left: pos.left + pos.width / 2 - targetWidth / 2
                        };
                        break;
                    case 'top':
                        position = {
                            top: pos.top - targetHeight,
                            left: pos.left + pos.width / 2 - targetWidth / 2
                        };
                        break;
                    case 'left':
                        position = {
                            top: pos.top + pos.height / 2 - targetHeight / 2,
                            left: pos.left - targetWidth
                        };
                        break;
                    case 'right':
                        position = {
                            top: pos.top + pos.height / 2 - targetHeight / 2,
                            left: pos.left + pos.width
                        };
                        break;
                    case 'top-right':
                        position = {
                            top: pos.top - targetHeight,
                            left: validLeft ? pos.left - fixedW : padding
                        };
                        arrowOffset = {
                            left: validLeft ? Math.min(elementW, targetWidth) / 2 + fixedW : _offsetOut
                        };
                        break;
                    case 'top-left':
                        refix = validRight ? fixedW : -padding;
                        position = {
                            top: pos.top - targetHeight,
                            left: pos.left - targetWidth + pos.width + refix
                        };
                        arrowOffset = {
                            left: validRight ? targetWidth - Math.min(elementW, targetWidth) / 2 - fixedW : _offsetOut
                        };
                        break;
                    case 'bottom-right':
                        position = {
                            top: pos.top + pos.height,
                            left: validLeft ? pos.left - fixedW : padding
                        };
                        arrowOffset = {
                            left: validLeft ? Math.min(elementW, targetWidth) / 2 + fixedW : _offsetOut
                        };
                        break;
                    case 'bottom-left':
                        refix = validRight ? fixedW : -padding;
                        position = {
                            top: pos.top + pos.height,
                            left: pos.left - targetWidth + pos.width + refix
                        };
                        arrowOffset = {
                            left: validRight ? targetWidth - Math.min(elementW, targetWidth) / 2 - fixedW : _offsetOut
                        };
                        break;
                    case 'right-top':
                        refix = validBottom ? fixedH : -padding;
                        position = {
                            top: pos.top - targetHeight + pos.height + refix,
                            left: pos.left + pos.width
                        };
                        arrowOffset = {
                            top: validBottom ? targetHeight - Math.min(elementH, targetHeight) / 2 - fixedH : _offsetOut
                        };
                        break;
                    case 'right-bottom':
                        position = {
                            top: validTop ? pos.top - fixedH : padding,
                            left: pos.left + pos.width
                        };
                        arrowOffset = {
                            top: validTop ? Math.min(elementH, targetHeight) / 2 + fixedH : _offsetOut
                        };
                        break;
                    case 'left-top':
                        refix = validBottom ? fixedH : -padding;
                        position = {
                            top: pos.top - targetHeight + pos.height + refix,
                            left: pos.left - targetWidth
                        };
                        arrowOffset = {
                            top: validBottom ? targetHeight - Math.min(elementH, targetHeight) / 2 - fixedH : _offsetOut
                        };
                        break;
                    case 'left-bottom':
                        position = {
                            top: validTop ? pos.top - fixedH : padding,
                            left: pos.left - targetWidth
                        };
                        arrowOffset = {
                            top: validTop ? Math.min(elementH, targetHeight) / 2 + fixedH : _offsetOut
                        };
                        break;

                }
                position.top += this.getOffsetTop();
                position.left += this.getOffsetLeft();

                return {
                    position: position,
                    arrowOffset: arrowOffset
                };
            }
        };
        $.fn[pluginName] = function(options, noInit) {
            var results = [];
            var $result = this.each(function() {

                var webuiPopover = $.data(this, 'plugin_' + pluginName);
                if (!webuiPopover) {
                    if (!options) {
                        webuiPopover = new WebuiPopover(this, null);
                    } else if (typeof options === 'string') {
                        if (options !== 'destroy') {
                            if (!noInit) {
                                webuiPopover = new WebuiPopover(this, null);
                                results.push(webuiPopover[options]());
                            }
                        }
                    } else if (typeof options === 'object') {
                        webuiPopover = new WebuiPopover(this, options);
                    }
                    $.data(this, 'plugin_' + pluginName, webuiPopover);
                } else {
                    if (options === 'destroy') {
                        webuiPopover.destroy();
                    } else if (typeof options === 'string') {
                        results.push(webuiPopover[options]());
                    }
                }
            });
            return (results.length) ? results : $result;
        };

        //Global object exposes to window.
        var webuiPopovers = (function() {
            var _hideAll = function() {
                hideAllPop();
            };
            var _create = function(selector, options) {
                options = options || {};
                $(selector).webuiPopover(options);
            };
            var _isCreated = function(selector) {
                var created = true;
                $(selector).each(function(i, item) {
                    created = created && $(item).data('plugin_' + pluginName) !== undefined;
                });
                return created;
            };
            var _show = function(selector, options) {
                if (options) {
                    $(selector).webuiPopover(options).webuiPopover('show');
                } else {
                    $(selector).webuiPopover('show');
                }
            };
            var _hide = function(selector) {
                $(selector).webuiPopover('hide');
            };

            var _setDefaultOptions = function(options) {
                defaults = $.extend({}, defaults, options);
            };

            var _updateContent = function(selector, content) {
                var pop = $(selector).data('plugin_' + pluginName);
                if (pop) {
                    var cache = pop.getCache();
                    pop.options.cache = false;
                    pop.options.content = content;
                    if (pop._opened) {
                        pop._opened = false;
                        pop.show();
                    } else {
                        if (pop.isAsync()) {
                            pop.setContentASync(content);
                        } else {
                            pop.setContent(content);
                        }
                    }
                    pop.options.cache = cache;
                }
            };

            var _updateContentAsync = function(selector, url) {
                var pop = $(selector).data('plugin_' + pluginName);
                if (pop) {
                    var cache = pop.getCache();
                    var type = pop.options.type;
                    pop.options.cache = false;
                    pop.options.url = url;

                    if (pop._opened) {
                        pop._opened = false;
                        pop.show();
                    } else {
                        pop.options.type = 'async';
                        pop.setContentASync(pop.content);
                    }
                    pop.options.cache = cache;
                    pop.options.type = type;
                }
            };

            return {
                show: _show,
                hide: _hide,
                create: _create,
                isCreated: _isCreated,
                hideAll: _hideAll,
                updateContent: _updateContent,
                updateContentAsync: _updateContentAsync,
                setDefaultOptions: _setDefaultOptions
            };
        })();
        window.WebuiPopovers = webuiPopovers;
    }));
})(window, document);

//! moment.js

;(function (global, factory) {
    typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
    typeof define === 'function' && define.amd ? define(factory) :
    global.moment = factory()
}(this, (function () { 'use strict';

    var hookCallback;

    function hooks () {
        return hookCallback.apply(null, arguments);
    }

    // This is done to register the method called with moment()
    // without creating circular dependencies.
    function setHookCallback (callback) {
        hookCallback = callback;
    }

    function isArray(input) {
        return input instanceof Array || Object.prototype.toString.call(input) === '[object Array]';
    }

    function isObject(input) {
        // IE8 will treat undefined and null as object if it wasn't for
        // input != null
        return input != null && Object.prototype.toString.call(input) === '[object Object]';
    }

    function isObjectEmpty(obj) {
        if (Object.getOwnPropertyNames) {
            return (Object.getOwnPropertyNames(obj).length === 0);
        } else {
            var k;
            for (k in obj) {
                if (obj.hasOwnProperty(k)) {
                    return false;
                }
            }
            return true;
        }
    }

    function isUndefined(input) {
        return input === void 0;
    }

    function isNumber(input) {
        return typeof input === 'number' || Object.prototype.toString.call(input) === '[object Number]';
    }

    function isDate(input) {
        return input instanceof Date || Object.prototype.toString.call(input) === '[object Date]';
    }

    function map(arr, fn) {
        var res = [], i;
        for (i = 0; i < arr.length; ++i) {
            res.push(fn(arr[i], i));
        }
        return res;
    }

    function hasOwnProp(a, b) {
        return Object.prototype.hasOwnProperty.call(a, b);
    }

    function extend(a, b) {
        for (var i in b) {
            if (hasOwnProp(b, i)) {
                a[i] = b[i];
            }
        }

        if (hasOwnProp(b, 'toString')) {
            a.toString = b.toString;
        }

        if (hasOwnProp(b, 'valueOf')) {
            a.valueOf = b.valueOf;
        }

        return a;
    }

    function createUTC (input, format, locale, strict) {
        return createLocalOrUTC(input, format, locale, strict, true).utc();
    }

    function defaultParsingFlags() {
        // We need to deep clone this object.
        return {
            empty           : false,
            unusedTokens    : [],
            unusedInput     : [],
            overflow        : -2,
            charsLeftOver   : 0,
            nullInput       : false,
            invalidMonth    : null,
            invalidFormat   : false,
            userInvalidated : false,
            iso             : false,
            parsedDateParts : [],
            meridiem        : null,
            rfc2822         : false,
            weekdayMismatch : false
        };
    }

    function getParsingFlags(m) {
        if (m._pf == null) {
            m._pf = defaultParsingFlags();
        }
        return m._pf;
    }

    var some;
    if (Array.prototype.some) {
        some = Array.prototype.some;
    } else {
        some = function (fun) {
            var t = Object(this);
            var len = t.length >>> 0;

            for (var i = 0; i < len; i++) {
                if (i in t && fun.call(this, t[i], i, t)) {
                    return true;
                }
            }

            return false;
        };
    }

    function isValid(m) {
        if (m._isValid == null) {
            var flags = getParsingFlags(m);
            var parsedParts = some.call(flags.parsedDateParts, function (i) {
                return i != null;
            });
            var isNowValid = !isNaN(m._d.getTime()) &&
                flags.overflow < 0 &&
                !flags.empty &&
                !flags.invalidMonth &&
                !flags.invalidWeekday &&
                !flags.weekdayMismatch &&
                !flags.nullInput &&
                !flags.invalidFormat &&
                !flags.userInvalidated &&
                (!flags.meridiem || (flags.meridiem && parsedParts));

            if (m._strict) {
                isNowValid = isNowValid &&
                    flags.charsLeftOver === 0 &&
                    flags.unusedTokens.length === 0 &&
                    flags.bigHour === undefined;
            }

            if (Object.isFrozen == null || !Object.isFrozen(m)) {
                m._isValid = isNowValid;
            }
            else {
                return isNowValid;
            }
        }
        return m._isValid;
    }

    function createInvalid (flags) {
        var m = createUTC(NaN);
        if (flags != null) {
            extend(getParsingFlags(m), flags);
        }
        else {
            getParsingFlags(m).userInvalidated = true;
        }

        return m;
    }

    // Plugins that add properties should also add the key here (null value),
    // so we can properly clone ourselves.
    var momentProperties = hooks.momentProperties = [];

    function copyConfig(to, from) {
        var i, prop, val;

        if (!isUndefined(from._isAMomentObject)) {
            to._isAMomentObject = from._isAMomentObject;
        }
        if (!isUndefined(from._i)) {
            to._i = from._i;
        }
        if (!isUndefined(from._f)) {
            to._f = from._f;
        }
        if (!isUndefined(from._l)) {
            to._l = from._l;
        }
        if (!isUndefined(from._strict)) {
            to._strict = from._strict;
        }
        if (!isUndefined(from._tzm)) {
            to._tzm = from._tzm;
        }
        if (!isUndefined(from._isUTC)) {
            to._isUTC = from._isUTC;
        }
        if (!isUndefined(from._offset)) {
            to._offset = from._offset;
        }
        if (!isUndefined(from._pf)) {
            to._pf = getParsingFlags(from);
        }
        if (!isUndefined(from._locale)) {
            to._locale = from._locale;
        }

        if (momentProperties.length > 0) {
            for (i = 0; i < momentProperties.length; i++) {
                prop = momentProperties[i];
                val = from[prop];
                if (!isUndefined(val)) {
                    to[prop] = val;
                }
            }
        }

        return to;
    }

    var updateInProgress = false;

    // Moment prototype object
    function Moment(config) {
        copyConfig(this, config);
        this._d = new Date(config._d != null ? config._d.getTime() : NaN);
        if (!this.isValid()) {
            this._d = new Date(NaN);
        }
        // Prevent infinite loop in case updateOffset creates new moment
        // objects.
        if (updateInProgress === false) {
            updateInProgress = true;
            hooks.updateOffset(this);
            updateInProgress = false;
        }
    }

    function isMoment (obj) {
        return obj instanceof Moment || (obj != null && obj._isAMomentObject != null);
    }

    function absFloor (number) {
        if (number < 0) {
            // -0 -> 0
            return Math.ceil(number) || 0;
        } else {
            return Math.floor(number);
        }
    }

    function toInt(argumentForCoercion) {
        var coercedNumber = +argumentForCoercion,
            value = 0;

        if (coercedNumber !== 0 && isFinite(coercedNumber)) {
            value = absFloor(coercedNumber);
        }

        return value;
    }

    // compare two arrays, return the number of differences
    function compareArrays(array1, array2, dontConvert) {
        var len = Math.min(array1.length, array2.length),
            lengthDiff = Math.abs(array1.length - array2.length),
            diffs = 0,
            i;
        for (i = 0; i < len; i++) {
            if ((dontConvert && array1[i] !== array2[i]) ||
                (!dontConvert && toInt(array1[i]) !== toInt(array2[i]))) {
                diffs++;
            }
        }
        return diffs + lengthDiff;
    }

    function warn(msg) {
        if (hooks.suppressDeprecationWarnings === false &&
                (typeof console !==  'undefined') && console.warn) {
            void 0;
        }
    }

    function deprecate(msg, fn) {
        var firstTime = true;

        return extend(function () {
            if (hooks.deprecationHandler != null) {
                hooks.deprecationHandler(null, msg);
            }
            if (firstTime) {
                var args = [];
                var arg;
                for (var i = 0; i < arguments.length; i++) {
                    arg = '';
                    if (typeof arguments[i] === 'object') {
                        arg += '\n[' + i + '] ';
                        for (var key in arguments[0]) {
                            arg += key + ': ' + arguments[0][key] + ', ';
                        }
                        arg = arg.slice(0, -2); // Remove trailing comma and space
                    } else {
                        arg = arguments[i];
                    }
                    args.push(arg);
                }
                warn(msg + '\nArguments: ' + Array.prototype.slice.call(args).join('') + '\n' + (new Error()).stack);
                firstTime = false;
            }
            return fn.apply(this, arguments);
        }, fn);
    }

    var deprecations = {};

    function deprecateSimple(name, msg) {
        if (hooks.deprecationHandler != null) {
            hooks.deprecationHandler(name, msg);
        }
        if (!deprecations[name]) {
            warn(msg);
            deprecations[name] = true;
        }
    }

    hooks.suppressDeprecationWarnings = false;
    hooks.deprecationHandler = null;

    function isFunction(input) {
        return input instanceof Function || Object.prototype.toString.call(input) === '[object Function]';
    }

    function set (config) {
        var prop, i;
        for (i in config) {
            prop = config[i];
            if (isFunction(prop)) {
                this[i] = prop;
            } else {
                this['_' + i] = prop;
            }
        }
        this._config = config;
        // Lenient ordinal parsing accepts just a number in addition to
        // number + (possibly) stuff coming from _dayOfMonthOrdinalParse.
        // TODO: Remove "ordinalParse" fallback in next major release.
        this._dayOfMonthOrdinalParseLenient = new RegExp(
            (this._dayOfMonthOrdinalParse.source || this._ordinalParse.source) +
                '|' + (/\d{1,2}/).source);
    }

    function mergeConfigs(parentConfig, childConfig) {
        var res = extend({}, parentConfig), prop;
        for (prop in childConfig) {
            if (hasOwnProp(childConfig, prop)) {
                if (isObject(parentConfig[prop]) && isObject(childConfig[prop])) {
                    res[prop] = {};
                    extend(res[prop], parentConfig[prop]);
                    extend(res[prop], childConfig[prop]);
                } else if (childConfig[prop] != null) {
                    res[prop] = childConfig[prop];
                } else {
                    delete res[prop];
                }
            }
        }
        for (prop in parentConfig) {
            if (hasOwnProp(parentConfig, prop) &&
                    !hasOwnProp(childConfig, prop) &&
                    isObject(parentConfig[prop])) {
                // make sure changes to properties don't modify parent config
                res[prop] = extend({}, res[prop]);
            }
        }
        return res;
    }

    function Locale(config) {
        if (config != null) {
            this.set(config);
        }
    }

    var keys;

    if (Object.keys) {
        keys = Object.keys;
    } else {
        keys = function (obj) {
            var i, res = [];
            for (i in obj) {
                if (hasOwnProp(obj, i)) {
                    res.push(i);
                }
            }
            return res;
        };
    }

    var defaultCalendar = {
        sameDay : '[Today at] LT',
        nextDay : '[Tomorrow at] LT',
        nextWeek : 'dddd [at] LT',
        lastDay : '[Yesterday at] LT',
        lastWeek : '[Last] dddd [at] LT',
        sameElse : 'L'
    };

    function calendar (key, mom, now) {
        var output = this._calendar[key] || this._calendar['sameElse'];
        return isFunction(output) ? output.call(mom, now) : output;
    }

    var defaultLongDateFormat = {
        LTS  : 'h:mm:ss A',
        LT   : 'h:mm A',
        L    : 'MM/DD/YYYY',
        LL   : 'MMMM D, YYYY',
        LLL  : 'MMMM D, YYYY h:mm A',
        LLLL : 'dddd, MMMM D, YYYY h:mm A'
    };

    function longDateFormat (key) {
        var format = this._longDateFormat[key],
            formatUpper = this._longDateFormat[key.toUpperCase()];

        if (format || !formatUpper) {
            return format;
        }

        this._longDateFormat[key] = formatUpper.replace(/MMMM|MM|DD|dddd/g, function (val) {
            return val.slice(1);
        });

        return this._longDateFormat[key];
    }

    var defaultInvalidDate = 'Invalid date';

    function invalidDate () {
        return this._invalidDate;
    }

    var defaultOrdinal = '%d';
    var defaultDayOfMonthOrdinalParse = /\d{1,2}/;

    function ordinal (number) {
        return this._ordinal.replace('%d', number);
    }

    var defaultRelativeTime = {
        future : 'in %s',
        past   : '%s ago',
        s  : 'a few seconds',
        ss : '%d seconds',
        m  : 'a minute',
        mm : '%d minutes',
        h  : 'an hour',
        hh : '%d hours',
        d  : 'a day',
        dd : '%d days',
        M  : 'a month',
        MM : '%d months',
        y  : 'a year',
        yy : '%d years'
    };

    function relativeTime (number, withoutSuffix, string, isFuture) {
        var output = this._relativeTime[string];
        return (isFunction(output)) ?
            output(number, withoutSuffix, string, isFuture) :
            output.replace(/%d/i, number);
    }

    function pastFuture (diff, output) {
        var format = this._relativeTime[diff > 0 ? 'future' : 'past'];
        return isFunction(format) ? format(output) : format.replace(/%s/i, output);
    }

    var aliases = {};

    function addUnitAlias (unit, shorthand) {
        var lowerCase = unit.toLowerCase();
        aliases[lowerCase] = aliases[lowerCase + 's'] = aliases[shorthand] = unit;
    }

    function normalizeUnits(units) {
        return typeof units === 'string' ? aliases[units] || aliases[units.toLowerCase()] : undefined;
    }

    function normalizeObjectUnits(inputObject) {
        var normalizedInput = {},
            normalizedProp,
            prop;

        for (prop in inputObject) {
            if (hasOwnProp(inputObject, prop)) {
                normalizedProp = normalizeUnits(prop);
                if (normalizedProp) {
                    normalizedInput[normalizedProp] = inputObject[prop];
                }
            }
        }

        return normalizedInput;
    }

    var priorities = {};

    function addUnitPriority(unit, priority) {
        priorities[unit] = priority;
    }

    function getPrioritizedUnits(unitsObj) {
        var units = [];
        for (var u in unitsObj) {
            units.push({unit: u, priority: priorities[u]});
        }
        units.sort(function (a, b) {
            return a.priority - b.priority;
        });
        return units;
    }

    function zeroFill(number, targetLength, forceSign) {
        var absNumber = '' + Math.abs(number),
            zerosToFill = targetLength - absNumber.length,
            sign = number >= 0;
        return (sign ? (forceSign ? '+' : '') : '-') +
            Math.pow(10, Math.max(0, zerosToFill)).toString().substr(1) + absNumber;
    }

    var formattingTokens = /(\[[^\[]*\])|(\\)?([Hh]mm(ss)?|Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|Qo?|YYYYYY|YYYYY|YYYY|YY|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|kk?|mm?|ss?|S{1,9}|x|X|zz?|ZZ?|.)/g;

    var localFormattingTokens = /(\[[^\[]*\])|(\\)?(LTS|LT|LL?L?L?|l{1,4})/g;

    var formatFunctions = {};

    var formatTokenFunctions = {};

    // token:    'M'
    // padded:   ['MM', 2]
    // ordinal:  'Mo'
    // callback: function () { this.month() + 1 }
    function addFormatToken (token, padded, ordinal, callback) {
        var func = callback;
        if (typeof callback === 'string') {
            func = function () {
                return this[callback]();
            };
        }
        if (token) {
            formatTokenFunctions[token] = func;
        }
        if (padded) {
            formatTokenFunctions[padded[0]] = function () {
                return zeroFill(func.apply(this, arguments), padded[1], padded[2]);
            };
        }
        if (ordinal) {
            formatTokenFunctions[ordinal] = function () {
                return this.localeData().ordinal(func.apply(this, arguments), token);
            };
        }
    }

    function removeFormattingTokens(input) {
        if (input.match(/\[[\s\S]/)) {
            return input.replace(/^\[|\]$/g, '');
        }
        return input.replace(/\\/g, '');
    }

    function makeFormatFunction(format) {
        var array = format.match(formattingTokens), i, length;

        for (i = 0, length = array.length; i < length; i++) {
            if (formatTokenFunctions[array[i]]) {
                array[i] = formatTokenFunctions[array[i]];
            } else {
                array[i] = removeFormattingTokens(array[i]);
            }
        }

        return function (mom) {
            var output = '', i;
            for (i = 0; i < length; i++) {
                output += isFunction(array[i]) ? array[i].call(mom, format) : array[i];
            }
            return output;
        };
    }

    // format date using native date object
    function formatMoment(m, format) {
        if (!m.isValid()) {
            return m.localeData().invalidDate();
        }

        format = expandFormat(format, m.localeData());
        formatFunctions[format] = formatFunctions[format] || makeFormatFunction(format);

        return formatFunctions[format](m);
    }

    function expandFormat(format, locale) {
        var i = 5;

        function replaceLongDateFormatTokens(input) {
            return locale.longDateFormat(input) || input;
        }

        localFormattingTokens.lastIndex = 0;
        while (i >= 0 && localFormattingTokens.test(format)) {
            format = format.replace(localFormattingTokens, replaceLongDateFormatTokens);
            localFormattingTokens.lastIndex = 0;
            i -= 1;
        }

        return format;
    }

    var match1         = /\d/;            //       0 - 9
    var match2         = /\d\d/;          //      00 - 99
    var match3         = /\d{3}/;         //     000 - 999
    var match4         = /\d{4}/;         //    0000 - 9999
    var match6         = /[+-]?\d{6}/;    // -999999 - 999999
    var match1to2      = /\d\d?/;         //       0 - 99
    var match3to4      = /\d\d\d\d?/;     //     999 - 9999
    var match5to6      = /\d\d\d\d\d\d?/; //   99999 - 999999
    var match1to3      = /\d{1,3}/;       //       0 - 999
    var match1to4      = /\d{1,4}/;       //       0 - 9999
    var match1to6      = /[+-]?\d{1,6}/;  // -999999 - 999999

    var matchUnsigned  = /\d+/;           //       0 - inf
    var matchSigned    = /[+-]?\d+/;      //    -inf - inf

    var matchOffset    = /Z|[+-]\d\d:?\d\d/gi; // +00:00 -00:00 +0000 -0000 or Z
    var matchShortOffset = /Z|[+-]\d\d(?::?\d\d)?/gi; // +00 -00 +00:00 -00:00 +0000 -0000 or Z

    var matchTimestamp = /[+-]?\d+(\.\d{1,3})?/; // 123456789 123456789.123

    // any word (or two) characters or numbers including two/three word month in arabic.
    // includes scottish gaelic two word and hyphenated months
    var matchWord = /[0-9]{0,256}['a-z\u00A0-\u05FF\u0700-\uD7FF\uF900-\uFDCF\uFDF0-\uFF07\uFF10-\uFFEF]{1,256}|[\u0600-\u06FF\/]{1,256}(\s*?[\u0600-\u06FF]{1,256}){1,2}/i;

    var regexes = {};

    function addRegexToken (token, regex, strictRegex) {
        regexes[token] = isFunction(regex) ? regex : function (isStrict, localeData) {
            return (isStrict && strictRegex) ? strictRegex : regex;
        };
    }

    function getParseRegexForToken (token, config) {
        if (!hasOwnProp(regexes, token)) {
            return new RegExp(unescapeFormat(token));
        }

        return regexes[token](config._strict, config._locale);
    }

    // Code from http://stackoverflow.com/questions/3561493/is-there-a-regexp-escape-function-in-javascript
    function unescapeFormat(s) {
        return regexEscape(s.replace('\\', '').replace(/\\(\[)|\\(\])|\[([^\]\[]*)\]|\\(.)/g, function (matched, p1, p2, p3, p4) {
            return p1 || p2 || p3 || p4;
        }));
    }

    function regexEscape(s) {
        return s.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
    }

    var tokens = {};

    function addParseToken (token, callback) {
        var i, func = callback;
        if (typeof token === 'string') {
            token = [token];
        }
        if (isNumber(callback)) {
            func = function (input, array) {
                array[callback] = toInt(input);
            };
        }
        for (i = 0; i < token.length; i++) {
            tokens[token[i]] = func;
        }
    }

    function addWeekParseToken (token, callback) {
        addParseToken(token, function (input, array, config, token) {
            config._w = config._w || {};
            callback(input, config._w, config, token);
        });
    }

    function addTimeToArrayFromToken(token, input, config) {
        if (input != null && hasOwnProp(tokens, token)) {
            tokens[token](input, config._a, config, token);
        }
    }

    var YEAR = 0;
    var MONTH = 1;
    var DATE = 2;
    var HOUR = 3;
    var MINUTE = 4;
    var SECOND = 5;
    var MILLISECOND = 6;
    var WEEK = 7;
    var WEEKDAY = 8;

    // FORMATTING

    addFormatToken('Y', 0, 0, function () {
        var y = this.year();
        return y <= 9999 ? '' + y : '+' + y;
    });

    addFormatToken(0, ['YY', 2], 0, function () {
        return this.year() % 100;
    });

    addFormatToken(0, ['YYYY',   4],       0, 'year');
    addFormatToken(0, ['YYYYY',  5],       0, 'year');
    addFormatToken(0, ['YYYYYY', 6, true], 0, 'year');

    // ALIASES

    addUnitAlias('year', 'y');

    // PRIORITIES

    addUnitPriority('year', 1);

    // PARSING

    addRegexToken('Y',      matchSigned);
    addRegexToken('YY',     match1to2, match2);
    addRegexToken('YYYY',   match1to4, match4);
    addRegexToken('YYYYY',  match1to6, match6);
    addRegexToken('YYYYYY', match1to6, match6);

    addParseToken(['YYYYY', 'YYYYYY'], YEAR);
    addParseToken('YYYY', function (input, array) {
        array[YEAR] = input.length === 2 ? hooks.parseTwoDigitYear(input) : toInt(input);
    });
    addParseToken('YY', function (input, array) {
        array[YEAR] = hooks.parseTwoDigitYear(input);
    });
    addParseToken('Y', function (input, array) {
        array[YEAR] = parseInt(input, 10);
    });

    // HELPERS

    function daysInYear(year) {
        return isLeapYear(year) ? 366 : 365;
    }

    function isLeapYear(year) {
        return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0;
    }

    // HOOKS

    hooks.parseTwoDigitYear = function (input) {
        return toInt(input) + (toInt(input) > 68 ? 1900 : 2000);
    };

    // MOMENTS

    var getSetYear = makeGetSet('FullYear', true);

    function getIsLeapYear () {
        return isLeapYear(this.year());
    }

    function makeGetSet (unit, keepTime) {
        return function (value) {
            if (value != null) {
                set$1(this, unit, value);
                hooks.updateOffset(this, keepTime);
                return this;
            } else {
                return get(this, unit);
            }
        };
    }

    function get (mom, unit) {
        return mom.isValid() ?
            mom._d['get' + (mom._isUTC ? 'UTC' : '') + unit]() : NaN;
    }

    function set$1 (mom, unit, value) {
        if (mom.isValid() && !isNaN(value)) {
            if (unit === 'FullYear' && isLeapYear(mom.year()) && mom.month() === 1 && mom.date() === 29) {
                mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value, mom.month(), daysInMonth(value, mom.month()));
            }
            else {
                mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value);
            }
        }
    }

    // MOMENTS

    function stringGet (units) {
        units = normalizeUnits(units);
        if (isFunction(this[units])) {
            return this[units]();
        }
        return this;
    }


    function stringSet (units, value) {
        if (typeof units === 'object') {
            units = normalizeObjectUnits(units);
            var prioritized = getPrioritizedUnits(units);
            for (var i = 0; i < prioritized.length; i++) {
                this[prioritized[i].unit](units[prioritized[i].unit]);
            }
        } else {
            units = normalizeUnits(units);
            if (isFunction(this[units])) {
                return this[units](value);
            }
        }
        return this;
    }

    function mod(n, x) {
        return ((n % x) + x) % x;
    }

    var indexOf;

    if (Array.prototype.indexOf) {
        indexOf = Array.prototype.indexOf;
    } else {
        indexOf = function (o) {
            // I know
            var i;
            for (i = 0; i < this.length; ++i) {
                if (this[i] === o) {
                    return i;
                }
            }
            return -1;
        };
    }

    function daysInMonth(year, month) {
        if (isNaN(year) || isNaN(month)) {
            return NaN;
        }
        var modMonth = mod(month, 12);
        year += (month - modMonth) / 12;
        return modMonth === 1 ? (isLeapYear(year) ? 29 : 28) : (31 - modMonth % 7 % 2);
    }

    // FORMATTING

    addFormatToken('M', ['MM', 2], 'Mo', function () {
        return this.month() + 1;
    });

    addFormatToken('MMM', 0, 0, function (format) {
        return this.localeData().monthsShort(this, format);
    });

    addFormatToken('MMMM', 0, 0, function (format) {
        return this.localeData().months(this, format);
    });

    // ALIASES

    addUnitAlias('month', 'M');

    // PRIORITY

    addUnitPriority('month', 8);

    // PARSING

    addRegexToken('M',    match1to2);
    addRegexToken('MM',   match1to2, match2);
    addRegexToken('MMM',  function (isStrict, locale) {
        return locale.monthsShortRegex(isStrict);
    });
    addRegexToken('MMMM', function (isStrict, locale) {
        return locale.monthsRegex(isStrict);
    });

    addParseToken(['M', 'MM'], function (input, array) {
        array[MONTH] = toInt(input) - 1;
    });

    addParseToken(['MMM', 'MMMM'], function (input, array, config, token) {
        var month = config._locale.monthsParse(input, token, config._strict);
        // if we didn't find a month name, mark the date as invalid.
        if (month != null) {
            array[MONTH] = month;
        } else {
            getParsingFlags(config).invalidMonth = input;
        }
    });

    // LOCALES

    var MONTHS_IN_FORMAT = /D[oD]?(\[[^\[\]]*\]|\s)+MMMM?/;
    var defaultLocaleMonths = 'January_February_March_April_May_June_July_August_September_October_November_December'.split('_');
    function localeMonths (m, format) {
        if (!m) {
            return isArray(this._months) ? this._months :
                this._months['standalone'];
        }
        return isArray(this._months) ? this._months[m.month()] :
            this._months[(this._months.isFormat || MONTHS_IN_FORMAT).test(format) ? 'format' : 'standalone'][m.month()];
    }

    var defaultLocaleMonthsShort = 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_');
    function localeMonthsShort (m, format) {
        if (!m) {
            return isArray(this._monthsShort) ? this._monthsShort :
                this._monthsShort['standalone'];
        }
        return isArray(this._monthsShort) ? this._monthsShort[m.month()] :
            this._monthsShort[MONTHS_IN_FORMAT.test(format) ? 'format' : 'standalone'][m.month()];
    }

    function handleStrictParse(monthName, format, strict) {
        var i, ii, mom, llc = monthName.toLocaleLowerCase();
        if (!this._monthsParse) {
            // this is not used
            this._monthsParse = [];
            this._longMonthsParse = [];
            this._shortMonthsParse = [];
            for (i = 0; i < 12; ++i) {
                mom = createUTC([2000, i]);
                this._shortMonthsParse[i] = this.monthsShort(mom, '').toLocaleLowerCase();
                this._longMonthsParse[i] = this.months(mom, '').toLocaleLowerCase();
            }
        }

        if (strict) {
            if (format === 'MMM') {
                ii = indexOf.call(this._shortMonthsParse, llc);
                return ii !== -1 ? ii : null;
            } else {
                ii = indexOf.call(this._longMonthsParse, llc);
                return ii !== -1 ? ii : null;
            }
        } else {
            if (format === 'MMM') {
                ii = indexOf.call(this._shortMonthsParse, llc);
                if (ii !== -1) {
                    return ii;
                }
                ii = indexOf.call(this._longMonthsParse, llc);
                return ii !== -1 ? ii : null;
            } else {
                ii = indexOf.call(this._longMonthsParse, llc);
                if (ii !== -1) {
                    return ii;
                }
                ii = indexOf.call(this._shortMonthsParse, llc);
                return ii !== -1 ? ii : null;
            }
        }
    }

    function localeMonthsParse (monthName, format, strict) {
        var i, mom, regex;

        if (this._monthsParseExact) {
            return handleStrictParse.call(this, monthName, format, strict);
        }

        if (!this._monthsParse) {
            this._monthsParse = [];
            this._longMonthsParse = [];
            this._shortMonthsParse = [];
        }

        // TODO: add sorting
        // Sorting makes sure if one month (or abbr) is a prefix of another
        // see sorting in computeMonthsParse
        for (i = 0; i < 12; i++) {
            // make the regex if we don't have it already
            mom = createUTC([2000, i]);
            if (strict && !this._longMonthsParse[i]) {
                this._longMonthsParse[i] = new RegExp('^' + this.months(mom, '').replace('.', '') + '$', 'i');
                this._shortMonthsParse[i] = new RegExp('^' + this.monthsShort(mom, '').replace('.', '') + '$', 'i');
            }
            if (!strict && !this._monthsParse[i]) {
                regex = '^' + this.months(mom, '') + '|^' + this.monthsShort(mom, '');
                this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i');
            }
            // test the regex
            if (strict && format === 'MMMM' && this._longMonthsParse[i].test(monthName)) {
                return i;
            } else if (strict && format === 'MMM' && this._shortMonthsParse[i].test(monthName)) {
                return i;
            } else if (!strict && this._monthsParse[i].test(monthName)) {
                return i;
            }
        }
    }

    // MOMENTS

    function setMonth (mom, value) {
        var dayOfMonth;

        if (!mom.isValid()) {
            // No op
            return mom;
        }

        if (typeof value === 'string') {
            if (/^\d+$/.test(value)) {
                value = toInt(value);
            } else {
                value = mom.localeData().monthsParse(value);
                // TODO: Another silent failure?
                if (!isNumber(value)) {
                    return mom;
                }
            }
        }

        dayOfMonth = Math.min(mom.date(), daysInMonth(mom.year(), value));
        mom._d['set' + (mom._isUTC ? 'UTC' : '') + 'Month'](value, dayOfMonth);
        return mom;
    }

    function getSetMonth (value) {
        if (value != null) {
            setMonth(this, value);
            hooks.updateOffset(this, true);
            return this;
        } else {
            return get(this, 'Month');
        }
    }

    function getDaysInMonth () {
        return daysInMonth(this.year(), this.month());
    }

    var defaultMonthsShortRegex = matchWord;
    function monthsShortRegex (isStrict) {
        if (this._monthsParseExact) {
            if (!hasOwnProp(this, '_monthsRegex')) {
                computeMonthsParse.call(this);
            }
            if (isStrict) {
                return this._monthsShortStrictRegex;
            } else {
                return this._monthsShortRegex;
            }
        } else {
            if (!hasOwnProp(this, '_monthsShortRegex')) {
                this._monthsShortRegex = defaultMonthsShortRegex;
            }
            return this._monthsShortStrictRegex && isStrict ?
                this._monthsShortStrictRegex : this._monthsShortRegex;
        }
    }

    var defaultMonthsRegex = matchWord;
    function monthsRegex (isStrict) {
        if (this._monthsParseExact) {
            if (!hasOwnProp(this, '_monthsRegex')) {
                computeMonthsParse.call(this);
            }
            if (isStrict) {
                return this._monthsStrictRegex;
            } else {
                return this._monthsRegex;
            }
        } else {
            if (!hasOwnProp(this, '_monthsRegex')) {
                this._monthsRegex = defaultMonthsRegex;
            }
            return this._monthsStrictRegex && isStrict ?
                this._monthsStrictRegex : this._monthsRegex;
        }
    }

    function computeMonthsParse () {
        function cmpLenRev(a, b) {
            return b.length - a.length;
        }

        var shortPieces = [], longPieces = [], mixedPieces = [],
            i, mom;
        for (i = 0; i < 12; i++) {
            // make the regex if we don't have it already
            mom = createUTC([2000, i]);
            shortPieces.push(this.monthsShort(mom, ''));
            longPieces.push(this.months(mom, ''));
            mixedPieces.push(this.months(mom, ''));
            mixedPieces.push(this.monthsShort(mom, ''));
        }
        // Sorting makes sure if one month (or abbr) is a prefix of another it
        // will match the longer piece.
        shortPieces.sort(cmpLenRev);
        longPieces.sort(cmpLenRev);
        mixedPieces.sort(cmpLenRev);
        for (i = 0; i < 12; i++) {
            shortPieces[i] = regexEscape(shortPieces[i]);
            longPieces[i] = regexEscape(longPieces[i]);
        }
        for (i = 0; i < 24; i++) {
            mixedPieces[i] = regexEscape(mixedPieces[i]);
        }

        this._monthsRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
        this._monthsShortRegex = this._monthsRegex;
        this._monthsStrictRegex = new RegExp('^(' + longPieces.join('|') + ')', 'i');
        this._monthsShortStrictRegex = new RegExp('^(' + shortPieces.join('|') + ')', 'i');
    }

    function createDate (y, m, d, h, M, s, ms) {
        // can't just apply() to create a date:
        // https://stackoverflow.com/q/181348
        var date = new Date(y, m, d, h, M, s, ms);

        // the date constructor remaps years 0-99 to 1900-1999
        if (y < 100 && y >= 0 && isFinite(date.getFullYear())) {
            date.setFullYear(y);
        }
        return date;
    }

    function createUTCDate (y) {
        var date = new Date(Date.UTC.apply(null, arguments));

        // the Date.UTC function remaps years 0-99 to 1900-1999
        if (y < 100 && y >= 0 && isFinite(date.getUTCFullYear())) {
            date.setUTCFullYear(y);
        }
        return date;
    }

    // start-of-first-week - start-of-year
    function firstWeekOffset(year, dow, doy) {
        var // first-week day -- which january is always in the first week (4 for iso, 1 for other)
            fwd = 7 + dow - doy,
            // first-week day local weekday -- which local weekday is fwd
            fwdlw = (7 + createUTCDate(year, 0, fwd).getUTCDay() - dow) % 7;

        return -fwdlw + fwd - 1;
    }

    // https://en.wikipedia.org/wiki/ISO_week_date#Calculating_a_date_given_the_year.2C_week_number_and_weekday
    function dayOfYearFromWeeks(year, week, weekday, dow, doy) {
        var localWeekday = (7 + weekday - dow) % 7,
            weekOffset = firstWeekOffset(year, dow, doy),
            dayOfYear = 1 + 7 * (week - 1) + localWeekday + weekOffset,
            resYear, resDayOfYear;

        if (dayOfYear <= 0) {
            resYear = year - 1;
            resDayOfYear = daysInYear(resYear) + dayOfYear;
        } else if (dayOfYear > daysInYear(year)) {
            resYear = year + 1;
            resDayOfYear = dayOfYear - daysInYear(year);
        } else {
            resYear = year;
            resDayOfYear = dayOfYear;
        }

        return {
            year: resYear,
            dayOfYear: resDayOfYear
        };
    }

    function weekOfYear(mom, dow, doy) {
        var weekOffset = firstWeekOffset(mom.year(), dow, doy),
            week = Math.floor((mom.dayOfYear() - weekOffset - 1) / 7) + 1,
            resWeek, resYear;

        if (week < 1) {
            resYear = mom.year() - 1;
            resWeek = week + weeksInYear(resYear, dow, doy);
        } else if (week > weeksInYear(mom.year(), dow, doy)) {
            resWeek = week - weeksInYear(mom.year(), dow, doy);
            resYear = mom.year() + 1;
        } else {
            resYear = mom.year();
            resWeek = week;
        }

        return {
            week: resWeek,
            year: resYear
        };
    }

    function weeksInYear(year, dow, doy) {
        var weekOffset = firstWeekOffset(year, dow, doy),
            weekOffsetNext = firstWeekOffset(year + 1, dow, doy);
        return (daysInYear(year) - weekOffset + weekOffsetNext) / 7;
    }

    // FORMATTING

    addFormatToken('w', ['ww', 2], 'wo', 'week');
    addFormatToken('W', ['WW', 2], 'Wo', 'isoWeek');

    // ALIASES

    addUnitAlias('week', 'w');
    addUnitAlias('isoWeek', 'W');

    // PRIORITIES

    addUnitPriority('week', 5);
    addUnitPriority('isoWeek', 5);

    // PARSING

    addRegexToken('w',  match1to2);
    addRegexToken('ww', match1to2, match2);
    addRegexToken('W',  match1to2);
    addRegexToken('WW', match1to2, match2);

    addWeekParseToken(['w', 'ww', 'W', 'WW'], function (input, week, config, token) {
        week[token.substr(0, 1)] = toInt(input);
    });

    // HELPERS

    // LOCALES

    function localeWeek (mom) {
        return weekOfYear(mom, this._week.dow, this._week.doy).week;
    }

    var defaultLocaleWeek = {
        dow : 0, // Sunday is the first day of the week.
        doy : 6  // The week that contains Jan 1st is the first week of the year.
    };

    function localeFirstDayOfWeek () {
        return this._week.dow;
    }

    function localeFirstDayOfYear () {
        return this._week.doy;
    }

    // MOMENTS

    function getSetWeek (input) {
        var week = this.localeData().week(this);
        return input == null ? week : this.add((input - week) * 7, 'd');
    }

    function getSetISOWeek (input) {
        var week = weekOfYear(this, 1, 4).week;
        return input == null ? week : this.add((input - week) * 7, 'd');
    }

    // FORMATTING

    addFormatToken('d', 0, 'do', 'day');

    addFormatToken('dd', 0, 0, function (format) {
        return this.localeData().weekdaysMin(this, format);
    });

    addFormatToken('ddd', 0, 0, function (format) {
        return this.localeData().weekdaysShort(this, format);
    });

    addFormatToken('dddd', 0, 0, function (format) {
        return this.localeData().weekdays(this, format);
    });

    addFormatToken('e', 0, 0, 'weekday');
    addFormatToken('E', 0, 0, 'isoWeekday');

    // ALIASES

    addUnitAlias('day', 'd');
    addUnitAlias('weekday', 'e');
    addUnitAlias('isoWeekday', 'E');

    // PRIORITY
    addUnitPriority('day', 11);
    addUnitPriority('weekday', 11);
    addUnitPriority('isoWeekday', 11);

    // PARSING

    addRegexToken('d',    match1to2);
    addRegexToken('e',    match1to2);
    addRegexToken('E',    match1to2);
    addRegexToken('dd',   function (isStrict, locale) {
        return locale.weekdaysMinRegex(isStrict);
    });
    addRegexToken('ddd',   function (isStrict, locale) {
        return locale.weekdaysShortRegex(isStrict);
    });
    addRegexToken('dddd',   function (isStrict, locale) {
        return locale.weekdaysRegex(isStrict);
    });

    addWeekParseToken(['dd', 'ddd', 'dddd'], function (input, week, config, token) {
        var weekday = config._locale.weekdaysParse(input, token, config._strict);
        // if we didn't get a weekday name, mark the date as invalid
        if (weekday != null) {
            week.d = weekday;
        } else {
            getParsingFlags(config).invalidWeekday = input;
        }
    });

    addWeekParseToken(['d', 'e', 'E'], function (input, week, config, token) {
        week[token] = toInt(input);
    });

    // HELPERS

    function parseWeekday(input, locale) {
        if (typeof input !== 'string') {
            return input;
        }

        if (!isNaN(input)) {
            return parseInt(input, 10);
        }

        input = locale.weekdaysParse(input);
        if (typeof input === 'number') {
            return input;
        }

        return null;
    }

    function parseIsoWeekday(input, locale) {
        if (typeof input === 'string') {
            return locale.weekdaysParse(input) % 7 || 7;
        }
        return isNaN(input) ? null : input;
    }

    // LOCALES

    var defaultLocaleWeekdays = 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split('_');
    function localeWeekdays (m, format) {
        if (!m) {
            return isArray(this._weekdays) ? this._weekdays :
                this._weekdays['standalone'];
        }
        return isArray(this._weekdays) ? this._weekdays[m.day()] :
            this._weekdays[this._weekdays.isFormat.test(format) ? 'format' : 'standalone'][m.day()];
    }

    var defaultLocaleWeekdaysShort = 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_');
    function localeWeekdaysShort (m) {
        return (m) ? this._weekdaysShort[m.day()] : this._weekdaysShort;
    }

    var defaultLocaleWeekdaysMin = 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_');
    function localeWeekdaysMin (m) {
        return (m) ? this._weekdaysMin[m.day()] : this._weekdaysMin;
    }

    function handleStrictParse$1(weekdayName, format, strict) {
        var i, ii, mom, llc = weekdayName.toLocaleLowerCase();
        if (!this._weekdaysParse) {
            this._weekdaysParse = [];
            this._shortWeekdaysParse = [];
            this._minWeekdaysParse = [];

            for (i = 0; i < 7; ++i) {
                mom = createUTC([2000, 1]).day(i);
                this._minWeekdaysParse[i] = this.weekdaysMin(mom, '').toLocaleLowerCase();
                this._shortWeekdaysParse[i] = this.weekdaysShort(mom, '').toLocaleLowerCase();
                this._weekdaysParse[i] = this.weekdays(mom, '').toLocaleLowerCase();
            }
        }

        if (strict) {
            if (format === 'dddd') {
                ii = indexOf.call(this._weekdaysParse, llc);
                return ii !== -1 ? ii : null;
            } else if (format === 'ddd') {
                ii = indexOf.call(this._shortWeekdaysParse, llc);
                return ii !== -1 ? ii : null;
            } else {
                ii = indexOf.call(this._minWeekdaysParse, llc);
                return ii !== -1 ? ii : null;
            }
        } else {
            if (format === 'dddd') {
                ii = indexOf.call(this._weekdaysParse, llc);
                if (ii !== -1) {
                    return ii;
                }
                ii = indexOf.call(this._shortWeekdaysParse, llc);
                if (ii !== -1) {
                    return ii;
                }
                ii = indexOf.call(this._minWeekdaysParse, llc);
                return ii !== -1 ? ii : null;
            } else if (format === 'ddd') {
                ii = indexOf.call(this._shortWeekdaysParse, llc);
                if (ii !== -1) {
                    return ii;
                }
                ii = indexOf.call(this._weekdaysParse, llc);
                if (ii !== -1) {
                    return ii;
                }
                ii = indexOf.call(this._minWeekdaysParse, llc);
                return ii !== -1 ? ii : null;
            } else {
                ii = indexOf.call(this._minWeekdaysParse, llc);
                if (ii !== -1) {
                    return ii;
                }
                ii = indexOf.call(this._weekdaysParse, llc);
                if (ii !== -1) {
                    return ii;
                }
                ii = indexOf.call(this._shortWeekdaysParse, llc);
                return ii !== -1 ? ii : null;
            }
        }
    }

    function localeWeekdaysParse (weekdayName, format, strict) {
        var i, mom, regex;

        if (this._weekdaysParseExact) {
            return handleStrictParse$1.call(this, weekdayName, format, strict);
        }

        if (!this._weekdaysParse) {
            this._weekdaysParse = [];
            this._minWeekdaysParse = [];
            this._shortWeekdaysParse = [];
            this._fullWeekdaysParse = [];
        }

        for (i = 0; i < 7; i++) {
            // make the regex if we don't have it already

            mom = createUTC([2000, 1]).day(i);
            if (strict && !this._fullWeekdaysParse[i]) {
                this._fullWeekdaysParse[i] = new RegExp('^' + this.weekdays(mom, '').replace('.', '\.?') + '$', 'i');
                this._shortWeekdaysParse[i] = new RegExp('^' + this.weekdaysShort(mom, '').replace('.', '\.?') + '$', 'i');
                this._minWeekdaysParse[i] = new RegExp('^' + this.weekdaysMin(mom, '').replace('.', '\.?') + '$', 'i');
            }
            if (!this._weekdaysParse[i]) {
                regex = '^' + this.weekdays(mom, '') + '|^' + this.weekdaysShort(mom, '') + '|^' + this.weekdaysMin(mom, '');
                this._weekdaysParse[i] = new RegExp(regex.replace('.', ''), 'i');
            }
            // test the regex
            if (strict && format === 'dddd' && this._fullWeekdaysParse[i].test(weekdayName)) {
                return i;
            } else if (strict && format === 'ddd' && this._shortWeekdaysParse[i].test(weekdayName)) {
                return i;
            } else if (strict && format === 'dd' && this._minWeekdaysParse[i].test(weekdayName)) {
                return i;
            } else if (!strict && this._weekdaysParse[i].test(weekdayName)) {
                return i;
            }
        }
    }

    // MOMENTS

    function getSetDayOfWeek (input) {
        if (!this.isValid()) {
            return input != null ? this : NaN;
        }
        var day = this._isUTC ? this._d.getUTCDay() : this._d.getDay();
        if (input != null) {
            input = parseWeekday(input, this.localeData());
            return this.add(input - day, 'd');
        } else {
            return day;
        }
    }

    function getSetLocaleDayOfWeek (input) {
        if (!this.isValid()) {
            return input != null ? this : NaN;
        }
        var weekday = (this.day() + 7 - this.localeData()._week.dow) % 7;
        return input == null ? weekday : this.add(input - weekday, 'd');
    }

    function getSetISODayOfWeek (input) {
        if (!this.isValid()) {
            return input != null ? this : NaN;
        }

        // behaves the same as moment#day except
        // as a getter, returns 7 instead of 0 (1-7 range instead of 0-6)
        // as a setter, sunday should belong to the previous week.

        if (input != null) {
            var weekday = parseIsoWeekday(input, this.localeData());
            return this.day(this.day() % 7 ? weekday : weekday - 7);
        } else {
            return this.day() || 7;
        }
    }

    var defaultWeekdaysRegex = matchWord;
    function weekdaysRegex (isStrict) {
        if (this._weekdaysParseExact) {
            if (!hasOwnProp(this, '_weekdaysRegex')) {
                computeWeekdaysParse.call(this);
            }
            if (isStrict) {
                return this._weekdaysStrictRegex;
            } else {
                return this._weekdaysRegex;
            }
        } else {
            if (!hasOwnProp(this, '_weekdaysRegex')) {
                this._weekdaysRegex = defaultWeekdaysRegex;
            }
            return this._weekdaysStrictRegex && isStrict ?
                this._weekdaysStrictRegex : this._weekdaysRegex;
        }
    }

    var defaultWeekdaysShortRegex = matchWord;
    function weekdaysShortRegex (isStrict) {
        if (this._weekdaysParseExact) {
            if (!hasOwnProp(this, '_weekdaysRegex')) {
                computeWeekdaysParse.call(this);
            }
            if (isStrict) {
                return this._weekdaysShortStrictRegex;
            } else {
                return this._weekdaysShortRegex;
            }
        } else {
            if (!hasOwnProp(this, '_weekdaysShortRegex')) {
                this._weekdaysShortRegex = defaultWeekdaysShortRegex;
            }
            return this._weekdaysShortStrictRegex && isStrict ?
                this._weekdaysShortStrictRegex : this._weekdaysShortRegex;
        }
    }

    var defaultWeekdaysMinRegex = matchWord;
    function weekdaysMinRegex (isStrict) {
        if (this._weekdaysParseExact) {
            if (!hasOwnProp(this, '_weekdaysRegex')) {
                computeWeekdaysParse.call(this);
            }
            if (isStrict) {
                return this._weekdaysMinStrictRegex;
            } else {
                return this._weekdaysMinRegex;
            }
        } else {
            if (!hasOwnProp(this, '_weekdaysMinRegex')) {
                this._weekdaysMinRegex = defaultWeekdaysMinRegex;
            }
            return this._weekdaysMinStrictRegex && isStrict ?
                this._weekdaysMinStrictRegex : this._weekdaysMinRegex;
        }
    }


    function computeWeekdaysParse () {
        function cmpLenRev(a, b) {
            return b.length - a.length;
        }

        var minPieces = [], shortPieces = [], longPieces = [], mixedPieces = [],
            i, mom, minp, shortp, longp;
        for (i = 0; i < 7; i++) {
            // make the regex if we don't have it already
            mom = createUTC([2000, 1]).day(i);
            minp = this.weekdaysMin(mom, '');
            shortp = this.weekdaysShort(mom, '');
            longp = this.weekdays(mom, '');
            minPieces.push(minp);
            shortPieces.push(shortp);
            longPieces.push(longp);
            mixedPieces.push(minp);
            mixedPieces.push(shortp);
            mixedPieces.push(longp);
        }
        // Sorting makes sure if one weekday (or abbr) is a prefix of another it
        // will match the longer piece.
        minPieces.sort(cmpLenRev);
        shortPieces.sort(cmpLenRev);
        longPieces.sort(cmpLenRev);
        mixedPieces.sort(cmpLenRev);
        for (i = 0; i < 7; i++) {
            shortPieces[i] = regexEscape(shortPieces[i]);
            longPieces[i] = regexEscape(longPieces[i]);
            mixedPieces[i] = regexEscape(mixedPieces[i]);
        }

        this._weekdaysRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
        this._weekdaysShortRegex = this._weekdaysRegex;
        this._weekdaysMinRegex = this._weekdaysRegex;

        this._weekdaysStrictRegex = new RegExp('^(' + longPieces.join('|') + ')', 'i');
        this._weekdaysShortStrictRegex = new RegExp('^(' + shortPieces.join('|') + ')', 'i');
        this._weekdaysMinStrictRegex = new RegExp('^(' + minPieces.join('|') + ')', 'i');
    }

    // FORMATTING

    function hFormat() {
        return this.hours() % 12 || 12;
    }

    function kFormat() {
        return this.hours() || 24;
    }

    addFormatToken('H', ['HH', 2], 0, 'hour');
    addFormatToken('h', ['hh', 2], 0, hFormat);
    addFormatToken('k', ['kk', 2], 0, kFormat);

    addFormatToken('hmm', 0, 0, function () {
        return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2);
    });

    addFormatToken('hmmss', 0, 0, function () {
        return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2) +
            zeroFill(this.seconds(), 2);
    });

    addFormatToken('Hmm', 0, 0, function () {
        return '' + this.hours() + zeroFill(this.minutes(), 2);
    });

    addFormatToken('Hmmss', 0, 0, function () {
        return '' + this.hours() + zeroFill(this.minutes(), 2) +
            zeroFill(this.seconds(), 2);
    });

    function meridiem (token, lowercase) {
        addFormatToken(token, 0, 0, function () {
            return this.localeData().meridiem(this.hours(), this.minutes(), lowercase);
        });
    }

    meridiem('a', true);
    meridiem('A', false);

    // ALIASES

    addUnitAlias('hour', 'h');

    // PRIORITY
    addUnitPriority('hour', 13);

    // PARSING

    function matchMeridiem (isStrict, locale) {
        return locale._meridiemParse;
    }

    addRegexToken('a',  matchMeridiem);
    addRegexToken('A',  matchMeridiem);
    addRegexToken('H',  match1to2);
    addRegexToken('h',  match1to2);
    addRegexToken('k',  match1to2);
    addRegexToken('HH', match1to2, match2);
    addRegexToken('hh', match1to2, match2);
    addRegexToken('kk', match1to2, match2);

    addRegexToken('hmm', match3to4);
    addRegexToken('hmmss', match5to6);
    addRegexToken('Hmm', match3to4);
    addRegexToken('Hmmss', match5to6);

    addParseToken(['H', 'HH'], HOUR);
    addParseToken(['k', 'kk'], function (input, array, config) {
        var kInput = toInt(input);
        array[HOUR] = kInput === 24 ? 0 : kInput;
    });
    addParseToken(['a', 'A'], function (input, array, config) {
        config._isPm = config._locale.isPM(input);
        config._meridiem = input;
    });
    addParseToken(['h', 'hh'], function (input, array, config) {
        array[HOUR] = toInt(input);
        getParsingFlags(config).bigHour = true;
    });
    addParseToken('hmm', function (input, array, config) {
        var pos = input.length - 2;
        array[HOUR] = toInt(input.substr(0, pos));
        array[MINUTE] = toInt(input.substr(pos));
        getParsingFlags(config).bigHour = true;
    });
    addParseToken('hmmss', function (input, array, config) {
        var pos1 = input.length - 4;
        var pos2 = input.length - 2;
        array[HOUR] = toInt(input.substr(0, pos1));
        array[MINUTE] = toInt(input.substr(pos1, 2));
        array[SECOND] = toInt(input.substr(pos2));
        getParsingFlags(config).bigHour = true;
    });
    addParseToken('Hmm', function (input, array, config) {
        var pos = input.length - 2;
        array[HOUR] = toInt(input.substr(0, pos));
        array[MINUTE] = toInt(input.substr(pos));
    });
    addParseToken('Hmmss', function (input, array, config) {
        var pos1 = input.length - 4;
        var pos2 = input.length - 2;
        array[HOUR] = toInt(input.substr(0, pos1));
        array[MINUTE] = toInt(input.substr(pos1, 2));
        array[SECOND] = toInt(input.substr(pos2));
    });

    // LOCALES

    function localeIsPM (input) {
        // IE8 Quirks Mode & IE7 Standards Mode do not allow accessing strings like arrays
        // Using charAt should be more compatible.
        return ((input + '').toLowerCase().charAt(0) === 'p');
    }

    var defaultLocaleMeridiemParse = /[ap]\.?m?\.?/i;
    function localeMeridiem (hours, minutes, isLower) {
        if (hours > 11) {
            return isLower ? 'pm' : 'PM';
        } else {
            return isLower ? 'am' : 'AM';
        }
    }


    // MOMENTS

    // Setting the hour should keep the time, because the user explicitly
    // specified which hour they want. So trying to maintain the same hour (in
    // a new timezone) makes sense. Adding/subtracting hours does not follow
    // this rule.
    var getSetHour = makeGetSet('Hours', true);

    var baseConfig = {
        calendar: defaultCalendar,
        longDateFormat: defaultLongDateFormat,
        invalidDate: defaultInvalidDate,
        ordinal: defaultOrdinal,
        dayOfMonthOrdinalParse: defaultDayOfMonthOrdinalParse,
        relativeTime: defaultRelativeTime,

        months: defaultLocaleMonths,
        monthsShort: defaultLocaleMonthsShort,

        week: defaultLocaleWeek,

        weekdays: defaultLocaleWeekdays,
        weekdaysMin: defaultLocaleWeekdaysMin,
        weekdaysShort: defaultLocaleWeekdaysShort,

        meridiemParse: defaultLocaleMeridiemParse
    };

    // internal storage for locale config files
    var locales = {};
    var localeFamilies = {};
    var globalLocale;

    function normalizeLocale(key) {
        return key ? key.toLowerCase().replace('_', '-') : key;
    }

    // pick the locale from the array
    // try ['en-au', 'en-gb'] as 'en-au', 'en-gb', 'en', as in move through the list trying each
    // substring from most specific to least, but move to the next array item if it's a more specific variant than the current root
    function chooseLocale(names) {
        var i = 0, j, next, locale, split;

        while (i < names.length) {
            split = normalizeLocale(names[i]).split('-');
            j = split.length;
            next = normalizeLocale(names[i + 1]);
            next = next ? next.split('-') : null;
            while (j > 0) {
                locale = loadLocale(split.slice(0, j).join('-'));
                if (locale) {
                    return locale;
                }
                if (next && next.length >= j && compareArrays(split, next, true) >= j - 1) {
                    //the next array item is better than a shallower substring of this one
                    break;
                }
                j--;
            }
            i++;
        }
        return globalLocale;
    }

    function loadLocale(name) {
        var oldLocale = null;
        // TODO: Find a better way to register and load all the locales in Node
        if (!locales[name] && (typeof module !== 'undefined') &&
                module && module.exports) {
            try {
                oldLocale = globalLocale._abbr;
                var aliasedRequire = require;
                aliasedRequire('./locale/' + name);
                getSetGlobalLocale(oldLocale);
            } catch (e) {}
        }
        return locales[name];
    }

    // This function will load locale and then set the global locale.  If
    // no arguments are passed in, it will simply return the current global
    // locale key.
    function getSetGlobalLocale (key, values) {
        var data;
        if (key) {
            if (isUndefined(values)) {
                data = getLocale(key);
            }
            else {
                data = defineLocale(key, values);
            }

            if (data) {
                // moment.duration._locale = moment._locale = data;
                globalLocale = data;
            }
            else {
                if ((typeof console !==  'undefined') && console.warn) {
                    //warn user if arguments are passed but the locale could not be set
                    void 0;
                }
            }
        }

        return globalLocale._abbr;
    }

    function defineLocale (name, config) {
        if (config !== null) {
            var locale, parentConfig = baseConfig;
            config.abbr = name;
            if (locales[name] != null) {
                deprecateSimple('defineLocaleOverride',
                        'use moment.updateLocale(localeName, config) to change ' +
                        'an existing locale. moment.defineLocale(localeName, ' +
                        'config) should only be used for creating a new locale ' +
                        'See http://momentjs.com/guides/#/warnings/define-locale/ for more info.');
                parentConfig = locales[name]._config;
            } else if (config.parentLocale != null) {
                if (locales[config.parentLocale] != null) {
                    parentConfig = locales[config.parentLocale]._config;
                } else {
                    locale = loadLocale(config.parentLocale);
                    if (locale != null) {
                        parentConfig = locale._config;
                    } else {
                        if (!localeFamilies[config.parentLocale]) {
                            localeFamilies[config.parentLocale] = [];
                        }
                        localeFamilies[config.parentLocale].push({
                            name: name,
                            config: config
                        });
                        return null;
                    }
                }
            }
            locales[name] = new Locale(mergeConfigs(parentConfig, config));

            if (localeFamilies[name]) {
                localeFamilies[name].forEach(function (x) {
                    defineLocale(x.name, x.config);
                });
            }

            // backwards compat for now: also set the locale
            // make sure we set the locale AFTER all child locales have been
            // created, so we won't end up with the child locale set.
            getSetGlobalLocale(name);


            return locales[name];
        } else {
            // useful for testing
            delete locales[name];
            return null;
        }
    }

    function updateLocale(name, config) {
        if (config != null) {
            var locale, tmpLocale, parentConfig = baseConfig;
            // MERGE
            tmpLocale = loadLocale(name);
            if (tmpLocale != null) {
                parentConfig = tmpLocale._config;
            }
            config = mergeConfigs(parentConfig, config);
            locale = new Locale(config);
            locale.parentLocale = locales[name];
            locales[name] = locale;

            // backwards compat for now: also set the locale
            getSetGlobalLocale(name);
        } else {
            // pass null for config to unupdate, useful for tests
            if (locales[name] != null) {
                if (locales[name].parentLocale != null) {
                    locales[name] = locales[name].parentLocale;
                } else if (locales[name] != null) {
                    delete locales[name];
                }
            }
        }
        return locales[name];
    }

    // returns locale data
    function getLocale (key) {
        var locale;

        if (key && key._locale && key._locale._abbr) {
            key = key._locale._abbr;
        }

        if (!key) {
            return globalLocale;
        }

        if (!isArray(key)) {
            //short-circuit everything else
            locale = loadLocale(key);
            if (locale) {
                return locale;
            }
            key = [key];
        }

        return chooseLocale(key);
    }

    function listLocales() {
        return keys(locales);
    }

    function checkOverflow (m) {
        var overflow;
        var a = m._a;

        if (a && getParsingFlags(m).overflow === -2) {
            overflow =
                a[MONTH]       < 0 || a[MONTH]       > 11  ? MONTH :
                a[DATE]        < 1 || a[DATE]        > daysInMonth(a[YEAR], a[MONTH]) ? DATE :
                a[HOUR]        < 0 || a[HOUR]        > 24 || (a[HOUR] === 24 && (a[MINUTE] !== 0 || a[SECOND] !== 0 || a[MILLISECOND] !== 0)) ? HOUR :
                a[MINUTE]      < 0 || a[MINUTE]      > 59  ? MINUTE :
                a[SECOND]      < 0 || a[SECOND]      > 59  ? SECOND :
                a[MILLISECOND] < 0 || a[MILLISECOND] > 999 ? MILLISECOND :
                -1;

            if (getParsingFlags(m)._overflowDayOfYear && (overflow < YEAR || overflow > DATE)) {
                overflow = DATE;
            }
            if (getParsingFlags(m)._overflowWeeks && overflow === -1) {
                overflow = WEEK;
            }
            if (getParsingFlags(m)._overflowWeekday && overflow === -1) {
                overflow = WEEKDAY;
            }

            getParsingFlags(m).overflow = overflow;
        }

        return m;
    }

    // Pick the first defined of two or three arguments.
    function defaults(a, b, c) {
        if (a != null) {
            return a;
        }
        if (b != null) {
            return b;
        }
        return c;
    }

    function currentDateArray(config) {
        // hooks is actually the exported moment object
        var nowValue = new Date(hooks.now());
        if (config._useUTC) {
            return [nowValue.getUTCFullYear(), nowValue.getUTCMonth(), nowValue.getUTCDate()];
        }
        return [nowValue.getFullYear(), nowValue.getMonth(), nowValue.getDate()];
    }

    // convert an array to a date.
    // the array should mirror the parameters below
    // note: all values past the year are optional and will default to the lowest possible value.
    // [year, month, day , hour, minute, second, millisecond]
    function configFromArray (config) {
        var i, date, input = [], currentDate, expectedWeekday, yearToUse;

        if (config._d) {
            return;
        }

        currentDate = currentDateArray(config);

        //compute day of the year from weeks and weekdays
        if (config._w && config._a[DATE] == null && config._a[MONTH] == null) {
            dayOfYearFromWeekInfo(config);
        }

        //if the day of the year is set, figure out what it is
        if (config._dayOfYear != null) {
            yearToUse = defaults(config._a[YEAR], currentDate[YEAR]);

            if (config._dayOfYear > daysInYear(yearToUse) || config._dayOfYear === 0) {
                getParsingFlags(config)._overflowDayOfYear = true;
            }

            date = createUTCDate(yearToUse, 0, config._dayOfYear);
            config._a[MONTH] = date.getUTCMonth();
            config._a[DATE] = date.getUTCDate();
        }

        // Default to current date.
        // * if no year, month, day of month are given, default to today
        // * if day of month is given, default month and year
        // * if month is given, default only year
        // * if year is given, don't default anything
        for (i = 0; i < 3 && config._a[i] == null; ++i) {
            config._a[i] = input[i] = currentDate[i];
        }

        // Zero out whatever was not defaulted, including time
        for (; i < 7; i++) {
            config._a[i] = input[i] = (config._a[i] == null) ? (i === 2 ? 1 : 0) : config._a[i];
        }

        // Check for 24:00:00.000
        if (config._a[HOUR] === 24 &&
                config._a[MINUTE] === 0 &&
                config._a[SECOND] === 0 &&
                config._a[MILLISECOND] === 0) {
            config._nextDay = true;
            config._a[HOUR] = 0;
        }

        config._d = (config._useUTC ? createUTCDate : createDate).apply(null, input);
        expectedWeekday = config._useUTC ? config._d.getUTCDay() : config._d.getDay();

        // Apply timezone offset from input. The actual utcOffset can be changed
        // with parseZone.
        if (config._tzm != null) {
            config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
        }

        if (config._nextDay) {
            config._a[HOUR] = 24;
        }

        // check for mismatching day of week
        if (config._w && typeof config._w.d !== 'undefined' && config._w.d !== expectedWeekday) {
            getParsingFlags(config).weekdayMismatch = true;
        }
    }

    function dayOfYearFromWeekInfo(config) {
        var w, weekYear, week, weekday, dow, doy, temp, weekdayOverflow;

        w = config._w;
        if (w.GG != null || w.W != null || w.E != null) {
            dow = 1;
            doy = 4;

            // TODO: We need to take the current isoWeekYear, but that depends on
            // how we interpret now (local, utc, fixed offset). So create
            // a now version of current config (take local/utc/offset flags, and
            // create now).
            weekYear = defaults(w.GG, config._a[YEAR], weekOfYear(createLocal(), 1, 4).year);
            week = defaults(w.W, 1);
            weekday = defaults(w.E, 1);
            if (weekday < 1 || weekday > 7) {
                weekdayOverflow = true;
            }
        } else {
            dow = config._locale._week.dow;
            doy = config._locale._week.doy;

            var curWeek = weekOfYear(createLocal(), dow, doy);

            weekYear = defaults(w.gg, config._a[YEAR], curWeek.year);

            // Default to current week.
            week = defaults(w.w, curWeek.week);

            if (w.d != null) {
                // weekday -- low day numbers are considered next week
                weekday = w.d;
                if (weekday < 0 || weekday > 6) {
                    weekdayOverflow = true;
                }
            } else if (w.e != null) {
                // local weekday -- counting starts from begining of week
                weekday = w.e + dow;
                if (w.e < 0 || w.e > 6) {
                    weekdayOverflow = true;
                }
            } else {
                // default to begining of week
                weekday = dow;
            }
        }
        if (week < 1 || week > weeksInYear(weekYear, dow, doy)) {
            getParsingFlags(config)._overflowWeeks = true;
        } else if (weekdayOverflow != null) {
            getParsingFlags(config)._overflowWeekday = true;
        } else {
            temp = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy);
            config._a[YEAR] = temp.year;
            config._dayOfYear = temp.dayOfYear;
        }
    }

    // iso 8601 regex
    // 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00)
    var extendedIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})-(?:\d\d-\d\d|W\d\d-\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?::\d\d(?::\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;
    var basicIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})(?:\d\d\d\d|W\d\d\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?:\d\d(?:\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;

    var tzRegex = /Z|[+-]\d\d(?::?\d\d)?/;

    var isoDates = [
        ['YYYYYY-MM-DD', /[+-]\d{6}-\d\d-\d\d/],
        ['YYYY-MM-DD', /\d{4}-\d\d-\d\d/],
        ['GGGG-[W]WW-E', /\d{4}-W\d\d-\d/],
        ['GGGG-[W]WW', /\d{4}-W\d\d/, false],
        ['YYYY-DDD', /\d{4}-\d{3}/],
        ['YYYY-MM', /\d{4}-\d\d/, false],
        ['YYYYYYMMDD', /[+-]\d{10}/],
        ['YYYYMMDD', /\d{8}/],
        // YYYYMM is NOT allowed by the standard
        ['GGGG[W]WWE', /\d{4}W\d{3}/],
        ['GGGG[W]WW', /\d{4}W\d{2}/, false],
        ['YYYYDDD', /\d{7}/]
    ];

    // iso time formats and regexes
    var isoTimes = [
        ['HH:mm:ss.SSSS', /\d\d:\d\d:\d\d\.\d+/],
        ['HH:mm:ss,SSSS', /\d\d:\d\d:\d\d,\d+/],
        ['HH:mm:ss', /\d\d:\d\d:\d\d/],
        ['HH:mm', /\d\d:\d\d/],
        ['HHmmss.SSSS', /\d\d\d\d\d\d\.\d+/],
        ['HHmmss,SSSS', /\d\d\d\d\d\d,\d+/],
        ['HHmmss', /\d\d\d\d\d\d/],
        ['HHmm', /\d\d\d\d/],
        ['HH', /\d\d/]
    ];

    var aspNetJsonRegex = /^\/?Date\((\-?\d+)/i;

    // date from iso format
    function configFromISO(config) {
        var i, l,
            string = config._i,
            match = extendedIsoRegex.exec(string) || basicIsoRegex.exec(string),
            allowTime, dateFormat, timeFormat, tzFormat;

        if (match) {
            getParsingFlags(config).iso = true;

            for (i = 0, l = isoDates.length; i < l; i++) {
                if (isoDates[i][1].exec(match[1])) {
                    dateFormat = isoDates[i][0];
                    allowTime = isoDates[i][2] !== false;
                    break;
                }
            }
            if (dateFormat == null) {
                config._isValid = false;
                return;
            }
            if (match[3]) {
                for (i = 0, l = isoTimes.length; i < l; i++) {
                    if (isoTimes[i][1].exec(match[3])) {
                        // match[2] should be 'T' or space
                        timeFormat = (match[2] || ' ') + isoTimes[i][0];
                        break;
                    }
                }
                if (timeFormat == null) {
                    config._isValid = false;
                    return;
                }
            }
            if (!allowTime && timeFormat != null) {
                config._isValid = false;
                return;
            }
            if (match[4]) {
                if (tzRegex.exec(match[4])) {
                    tzFormat = 'Z';
                } else {
                    config._isValid = false;
                    return;
                }
            }
            config._f = dateFormat + (timeFormat || '') + (tzFormat || '');
            configFromStringAndFormat(config);
        } else {
            config._isValid = false;
        }
    }

    // RFC 2822 regex: For details see https://tools.ietf.org/html/rfc2822#section-3.3
    var rfc2822 = /^(?:(Mon|Tue|Wed|Thu|Fri|Sat|Sun),?\s)?(\d{1,2})\s(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s(\d{2,4})\s(\d\d):(\d\d)(?::(\d\d))?\s(?:(UT|GMT|[ECMP][SD]T)|([Zz])|([+-]\d{4}))$/;

    function extractFromRFC2822Strings(yearStr, monthStr, dayStr, hourStr, minuteStr, secondStr) {
        var result = [
            untruncateYear(yearStr),
            defaultLocaleMonthsShort.indexOf(monthStr),
            parseInt(dayStr, 10),
            parseInt(hourStr, 10),
            parseInt(minuteStr, 10)
        ];

        if (secondStr) {
            result.push(parseInt(secondStr, 10));
        }

        return result;
    }

    function untruncateYear(yearStr) {
        var year = parseInt(yearStr, 10);
        if (year <= 49) {
            return 2000 + year;
        } else if (year <= 999) {
            return 1900 + year;
        }
        return year;
    }

    function preprocessRFC2822(s) {
        // Remove comments and folding whitespace and replace multiple-spaces with a single space
        return s.replace(/\([^)]*\)|[\n\t]/g, ' ').replace(/(\s\s+)/g, ' ').trim();
    }

    function checkWeekday(weekdayStr, parsedInput, config) {
        if (weekdayStr) {
            // TODO: Replace the vanilla JS Date object with an indepentent day-of-week check.
            var weekdayProvided = defaultLocaleWeekdaysShort.indexOf(weekdayStr),
                weekdayActual = new Date(parsedInput[0], parsedInput[1], parsedInput[2]).getDay();
            if (weekdayProvided !== weekdayActual) {
                getParsingFlags(config).weekdayMismatch = true;
                config._isValid = false;
                return false;
            }
        }
        return true;
    }

    var obsOffsets = {
        UT: 0,
        GMT: 0,
        EDT: -4 * 60,
        EST: -5 * 60,
        CDT: -5 * 60,
        CST: -6 * 60,
        MDT: -6 * 60,
        MST: -7 * 60,
        PDT: -7 * 60,
        PST: -8 * 60
    };

    function calculateOffset(obsOffset, militaryOffset, numOffset) {
        if (obsOffset) {
            return obsOffsets[obsOffset];
        } else if (militaryOffset) {
            // the only allowed military tz is Z
            return 0;
        } else {
            var hm = parseInt(numOffset, 10);
            var m = hm % 100, h = (hm - m) / 100;
            return h * 60 + m;
        }
    }

    // date and time from ref 2822 format
    function configFromRFC2822(config) {
        var match = rfc2822.exec(preprocessRFC2822(config._i));
        if (match) {
            var parsedArray = extractFromRFC2822Strings(match[4], match[3], match[2], match[5], match[6], match[7]);
            if (!checkWeekday(match[1], parsedArray, config)) {
                return;
            }

            config._a = parsedArray;
            config._tzm = calculateOffset(match[8], match[9], match[10]);

            config._d = createUTCDate.apply(null, config._a);
            config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);

            getParsingFlags(config).rfc2822 = true;
        } else {
            config._isValid = false;
        }
    }

    // date from iso format or fallback
    function configFromString(config) {
        var matched = aspNetJsonRegex.exec(config._i);

        if (matched !== null) {
            config._d = new Date(+matched[1]);
            return;
        }

        configFromISO(config);
        if (config._isValid === false) {
            delete config._isValid;
        } else {
            return;
        }

        configFromRFC2822(config);
        if (config._isValid === false) {
            delete config._isValid;
        } else {
            return;
        }

        // Final attempt, use Input Fallback
        hooks.createFromInputFallback(config);
    }

    hooks.createFromInputFallback = deprecate(
        'value provided is not in a recognized RFC2822 or ISO format. moment construction falls back to js Date(), ' +
        'which is not reliable across all browsers and versions. Non RFC2822/ISO date formats are ' +
        'discouraged and will be removed in an upcoming major release. Please refer to ' +
        'http://momentjs.com/guides/#/warnings/js-date/ for more info.',
        function (config) {
            config._d = new Date(config._i + (config._useUTC ? ' UTC' : ''));
        }
    );

    // constant that refers to the ISO standard
    hooks.ISO_8601 = function () {};

    // constant that refers to the RFC 2822 form
    hooks.RFC_2822 = function () {};

    // date from string and format string
    function configFromStringAndFormat(config) {
        // TODO: Move this to another part of the creation flow to prevent circular deps
        if (config._f === hooks.ISO_8601) {
            configFromISO(config);
            return;
        }
        if (config._f === hooks.RFC_2822) {
            configFromRFC2822(config);
            return;
        }
        config._a = [];
        getParsingFlags(config).empty = true;

        // This array is used to make a Date, either with `new Date` or `Date.UTC`
        var string = '' + config._i,
            i, parsedInput, tokens, token, skipped,
            stringLength = string.length,
            totalParsedInputLength = 0;

        tokens = expandFormat(config._f, config._locale).match(formattingTokens) || [];

        for (i = 0; i < tokens.length; i++) {
            token = tokens[i];
            parsedInput = (string.match(getParseRegexForToken(token, config)) || [])[0];
            // console.log('token', token, 'parsedInput', parsedInput,
            //         'regex', getParseRegexForToken(token, config));
            if (parsedInput) {
                skipped = string.substr(0, string.indexOf(parsedInput));
                if (skipped.length > 0) {
                    getParsingFlags(config).unusedInput.push(skipped);
                }
                string = string.slice(string.indexOf(parsedInput) + parsedInput.length);
                totalParsedInputLength += parsedInput.length;
            }
            // don't parse if it's not a known token
            if (formatTokenFunctions[token]) {
                if (parsedInput) {
                    getParsingFlags(config).empty = false;
                }
                else {
                    getParsingFlags(config).unusedTokens.push(token);
                }
                addTimeToArrayFromToken(token, parsedInput, config);
            }
            else if (config._strict && !parsedInput) {
                getParsingFlags(config).unusedTokens.push(token);
            }
        }

        // add remaining unparsed input length to the string
        getParsingFlags(config).charsLeftOver = stringLength - totalParsedInputLength;
        if (string.length > 0) {
            getParsingFlags(config).unusedInput.push(string);
        }

        // clear _12h flag if hour is <= 12
        if (config._a[HOUR] <= 12 &&
            getParsingFlags(config).bigHour === true &&
            config._a[HOUR] > 0) {
            getParsingFlags(config).bigHour = undefined;
        }

        getParsingFlags(config).parsedDateParts = config._a.slice(0);
        getParsingFlags(config).meridiem = config._meridiem;
        // handle meridiem
        config._a[HOUR] = meridiemFixWrap(config._locale, config._a[HOUR], config._meridiem);

        configFromArray(config);
        checkOverflow(config);
    }


    function meridiemFixWrap (locale, hour, meridiem) {
        var isPm;

        if (meridiem == null) {
            // nothing to do
            return hour;
        }
        if (locale.meridiemHour != null) {
            return locale.meridiemHour(hour, meridiem);
        } else if (locale.isPM != null) {
            // Fallback
            isPm = locale.isPM(meridiem);
            if (isPm && hour < 12) {
                hour += 12;
            }
            if (!isPm && hour === 12) {
                hour = 0;
            }
            return hour;
        } else {
            // this is not supposed to happen
            return hour;
        }
    }

    // date from string and array of format strings
    function configFromStringAndArray(config) {
        var tempConfig,
            bestMoment,

            scoreToBeat,
            i,
            currentScore;

        if (config._f.length === 0) {
            getParsingFlags(config).invalidFormat = true;
            config._d = new Date(NaN);
            return;
        }

        for (i = 0; i < config._f.length; i++) {
            currentScore = 0;
            tempConfig = copyConfig({}, config);
            if (config._useUTC != null) {
                tempConfig._useUTC = config._useUTC;
            }
            tempConfig._f = config._f[i];
            configFromStringAndFormat(tempConfig);

            if (!isValid(tempConfig)) {
                continue;
            }

            // if there is any input that was not parsed add a penalty for that format
            currentScore += getParsingFlags(tempConfig).charsLeftOver;

            //or tokens
            currentScore += getParsingFlags(tempConfig).unusedTokens.length * 10;

            getParsingFlags(tempConfig).score = currentScore;

            if (scoreToBeat == null || currentScore < scoreToBeat) {
                scoreToBeat = currentScore;
                bestMoment = tempConfig;
            }
        }

        extend(config, bestMoment || tempConfig);
    }

    function configFromObject(config) {
        if (config._d) {
            return;
        }

        var i = normalizeObjectUnits(config._i);
        config._a = map([i.year, i.month, i.day || i.date, i.hour, i.minute, i.second, i.millisecond], function (obj) {
            return obj && parseInt(obj, 10);
        });

        configFromArray(config);
    }

    function createFromConfig (config) {
        var res = new Moment(checkOverflow(prepareConfig(config)));
        if (res._nextDay) {
            // Adding is smart enough around DST
            res.add(1, 'd');
            res._nextDay = undefined;
        }

        return res;
    }

    function prepareConfig (config) {
        var input = config._i,
            format = config._f;

        config._locale = config._locale || getLocale(config._l);

        if (input === null || (format === undefined && input === '')) {
            return createInvalid({nullInput: true});
        }

        if (typeof input === 'string') {
            config._i = input = config._locale.preparse(input);
        }

        if (isMoment(input)) {
            return new Moment(checkOverflow(input));
        } else if (isDate(input)) {
            config._d = input;
        } else if (isArray(format)) {
            configFromStringAndArray(config);
        } else if (format) {
            configFromStringAndFormat(config);
        }  else {
            configFromInput(config);
        }

        if (!isValid(config)) {
            config._d = null;
        }

        return config;
    }

    function configFromInput(config) {
        var input = config._i;
        if (isUndefined(input)) {
            config._d = new Date(hooks.now());
        } else if (isDate(input)) {
            config._d = new Date(input.valueOf());
        } else if (typeof input === 'string') {
            configFromString(config);
        } else if (isArray(input)) {
            config._a = map(input.slice(0), function (obj) {
                return parseInt(obj, 10);
            });
            configFromArray(config);
        } else if (isObject(input)) {
            configFromObject(config);
        } else if (isNumber(input)) {
            // from milliseconds
            config._d = new Date(input);
        } else {
            hooks.createFromInputFallback(config);
        }
    }

    function createLocalOrUTC (input, format, locale, strict, isUTC) {
        var c = {};

        if (locale === true || locale === false) {
            strict = locale;
            locale = undefined;
        }

        if ((isObject(input) && isObjectEmpty(input)) ||
                (isArray(input) && input.length === 0)) {
            input = undefined;
        }
        // object construction must be done this way.
        // https://github.com/moment/moment/issues/1423
        c._isAMomentObject = true;
        c._useUTC = c._isUTC = isUTC;
        c._l = locale;
        c._i = input;
        c._f = format;
        c._strict = strict;

        return createFromConfig(c);
    }

    function createLocal (input, format, locale, strict) {
        return createLocalOrUTC(input, format, locale, strict, false);
    }

    var prototypeMin = deprecate(
        'moment().min is deprecated, use moment.max instead. http://momentjs.com/guides/#/warnings/min-max/',
        function () {
            var other = createLocal.apply(null, arguments);
            if (this.isValid() && other.isValid()) {
                return other < this ? this : other;
            } else {
                return createInvalid();
            }
        }
    );

    var prototypeMax = deprecate(
        'moment().max is deprecated, use moment.min instead. http://momentjs.com/guides/#/warnings/min-max/',
        function () {
            var other = createLocal.apply(null, arguments);
            if (this.isValid() && other.isValid()) {
                return other > this ? this : other;
            } else {
                return createInvalid();
            }
        }
    );

    // Pick a moment m from moments so that m[fn](other) is true for all
    // other. This relies on the function fn to be transitive.
    //
    // moments should either be an array of moment objects or an array, whose
    // first element is an array of moment objects.
    function pickBy(fn, moments) {
        var res, i;
        if (moments.length === 1 && isArray(moments[0])) {
            moments = moments[0];
        }
        if (!moments.length) {
            return createLocal();
        }
        res = moments[0];
        for (i = 1; i < moments.length; ++i) {
            if (!moments[i].isValid() || moments[i][fn](res)) {
                res = moments[i];
            }
        }
        return res;
    }

    // TODO: Use [].sort instead?
    function min () {
        var args = [].slice.call(arguments, 0);

        return pickBy('isBefore', args);
    }

    function max () {
        var args = [].slice.call(arguments, 0);

        return pickBy('isAfter', args);
    }

    var now = function () {
        return Date.now ? Date.now() : +(new Date());
    };

    var ordering = ['year', 'quarter', 'month', 'week', 'day', 'hour', 'minute', 'second', 'millisecond'];

    function isDurationValid(m) {
        for (var key in m) {
            if (!(indexOf.call(ordering, key) !== -1 && (m[key] == null || !isNaN(m[key])))) {
                return false;
            }
        }

        var unitHasDecimal = false;
        for (var i = 0; i < ordering.length; ++i) {
            if (m[ordering[i]]) {
                if (unitHasDecimal) {
                    return false; // only allow non-integers for smallest unit
                }
                if (parseFloat(m[ordering[i]]) !== toInt(m[ordering[i]])) {
                    unitHasDecimal = true;
                }
            }
        }

        return true;
    }

    function isValid$1() {
        return this._isValid;
    }

    function createInvalid$1() {
        return createDuration(NaN);
    }

    function Duration (duration) {
        var normalizedInput = normalizeObjectUnits(duration),
            years = normalizedInput.year || 0,
            quarters = normalizedInput.quarter || 0,
            months = normalizedInput.month || 0,
            weeks = normalizedInput.week || 0,
            days = normalizedInput.day || 0,
            hours = normalizedInput.hour || 0,
            minutes = normalizedInput.minute || 0,
            seconds = normalizedInput.second || 0,
            milliseconds = normalizedInput.millisecond || 0;

        this._isValid = isDurationValid(normalizedInput);

        // representation for dateAddRemove
        this._milliseconds = +milliseconds +
            seconds * 1e3 + // 1000
            minutes * 6e4 + // 1000 * 60
            hours * 1000 * 60 * 60; //using 1000 * 60 * 60 instead of 36e5 to avoid floating point rounding errors https://github.com/moment/moment/issues/2978
        // Because of dateAddRemove treats 24 hours as different from a
        // day when working around DST, we need to store them separately
        this._days = +days +
            weeks * 7;
        // It is impossible to translate months into days without knowing
        // which months you are are talking about, so we have to store
        // it separately.
        this._months = +months +
            quarters * 3 +
            years * 12;

        this._data = {};

        this._locale = getLocale();

        this._bubble();
    }

    function isDuration (obj) {
        return obj instanceof Duration;
    }

    function absRound (number) {
        if (number < 0) {
            return Math.round(-1 * number) * -1;
        } else {
            return Math.round(number);
        }
    }

    // FORMATTING

    function offset (token, separator) {
        addFormatToken(token, 0, 0, function () {
            var offset = this.utcOffset();
            var sign = '+';
            if (offset < 0) {
                offset = -offset;
                sign = '-';
            }
            return sign + zeroFill(~~(offset / 60), 2) + separator + zeroFill(~~(offset) % 60, 2);
        });
    }

    offset('Z', ':');
    offset('ZZ', '');

    // PARSING

    addRegexToken('Z',  matchShortOffset);
    addRegexToken('ZZ', matchShortOffset);
    addParseToken(['Z', 'ZZ'], function (input, array, config) {
        config._useUTC = true;
        config._tzm = offsetFromString(matchShortOffset, input);
    });

    // HELPERS

    // timezone chunker
    // '+10:00' > ['10',  '00']
    // '-1530'  > ['-15', '30']
    var chunkOffset = /([\+\-]|\d\d)/gi;

    function offsetFromString(matcher, string) {
        var matches = (string || '').match(matcher);

        if (matches === null) {
            return null;
        }

        var chunk   = matches[matches.length - 1] || [];
        var parts   = (chunk + '').match(chunkOffset) || ['-', 0, 0];
        var minutes = +(parts[1] * 60) + toInt(parts[2]);

        return minutes === 0 ?
          0 :
          parts[0] === '+' ? minutes : -minutes;
    }

    // Return a moment from input, that is local/utc/zone equivalent to model.
    function cloneWithOffset(input, model) {
        var res, diff;
        if (model._isUTC) {
            res = model.clone();
            diff = (isMoment(input) || isDate(input) ? input.valueOf() : createLocal(input).valueOf()) - res.valueOf();
            // Use low-level api, because this fn is low-level api.
            res._d.setTime(res._d.valueOf() + diff);
            hooks.updateOffset(res, false);
            return res;
        } else {
            return createLocal(input).local();
        }
    }

    function getDateOffset (m) {
        // On Firefox.24 Date#getTimezoneOffset returns a floating point.
        // https://github.com/moment/moment/pull/1871
        return -Math.round(m._d.getTimezoneOffset() / 15) * 15;
    }

    // HOOKS

    // This function will be called whenever a moment is mutated.
    // It is intended to keep the offset in sync with the timezone.
    hooks.updateOffset = function () {};

    // MOMENTS

    // keepLocalTime = true means only change the timezone, without
    // affecting the local hour. So 5:31:26 +0300 --[utcOffset(2, true)]-->
    // 5:31:26 +0200 It is possible that 5:31:26 doesn't exist with offset
    // +0200, so we adjust the time as needed, to be valid.
    //
    // Keeping the time actually adds/subtracts (one hour)
    // from the actual represented time. That is why we call updateOffset
    // a second time. In case it wants us to change the offset again
    // _changeInProgress == true case, then we have to adjust, because
    // there is no such time in the given timezone.
    function getSetOffset (input, keepLocalTime, keepMinutes) {
        var offset = this._offset || 0,
            localAdjust;
        if (!this.isValid()) {
            return input != null ? this : NaN;
        }
        if (input != null) {
            if (typeof input === 'string') {
                input = offsetFromString(matchShortOffset, input);
                if (input === null) {
                    return this;
                }
            } else if (Math.abs(input) < 16 && !keepMinutes) {
                input = input * 60;
            }
            if (!this._isUTC && keepLocalTime) {
                localAdjust = getDateOffset(this);
            }
            this._offset = input;
            this._isUTC = true;
            if (localAdjust != null) {
                this.add(localAdjust, 'm');
            }
            if (offset !== input) {
                if (!keepLocalTime || this._changeInProgress) {
                    addSubtract(this, createDuration(input - offset, 'm'), 1, false);
                } else if (!this._changeInProgress) {
                    this._changeInProgress = true;
                    hooks.updateOffset(this, true);
                    this._changeInProgress = null;
                }
            }
            return this;
        } else {
            return this._isUTC ? offset : getDateOffset(this);
        }
    }

    function getSetZone (input, keepLocalTime) {
        if (input != null) {
            if (typeof input !== 'string') {
                input = -input;
            }

            this.utcOffset(input, keepLocalTime);

            return this;
        } else {
            return -this.utcOffset();
        }
    }

    function setOffsetToUTC (keepLocalTime) {
        return this.utcOffset(0, keepLocalTime);
    }

    function setOffsetToLocal (keepLocalTime) {
        if (this._isUTC) {
            this.utcOffset(0, keepLocalTime);
            this._isUTC = false;

            if (keepLocalTime) {
                this.subtract(getDateOffset(this), 'm');
            }
        }
        return this;
    }

    function setOffsetToParsedOffset () {
        if (this._tzm != null) {
            this.utcOffset(this._tzm, false, true);
        } else if (typeof this._i === 'string') {
            var tZone = offsetFromString(matchOffset, this._i);
            if (tZone != null) {
                this.utcOffset(tZone);
            }
            else {
                this.utcOffset(0, true);
            }
        }
        return this;
    }

    function hasAlignedHourOffset (input) {
        if (!this.isValid()) {
            return false;
        }
        input = input ? createLocal(input).utcOffset() : 0;

        return (this.utcOffset() - input) % 60 === 0;
    }

    function isDaylightSavingTime () {
        return (
            this.utcOffset() > this.clone().month(0).utcOffset() ||
            this.utcOffset() > this.clone().month(5).utcOffset()
        );
    }

    function isDaylightSavingTimeShifted () {
        if (!isUndefined(this._isDSTShifted)) {
            return this._isDSTShifted;
        }

        var c = {};

        copyConfig(c, this);
        c = prepareConfig(c);

        if (c._a) {
            var other = c._isUTC ? createUTC(c._a) : createLocal(c._a);
            this._isDSTShifted = this.isValid() &&
                compareArrays(c._a, other.toArray()) > 0;
        } else {
            this._isDSTShifted = false;
        }

        return this._isDSTShifted;
    }

    function isLocal () {
        return this.isValid() ? !this._isUTC : false;
    }

    function isUtcOffset () {
        return this.isValid() ? this._isUTC : false;
    }

    function isUtc () {
        return this.isValid() ? this._isUTC && this._offset === 0 : false;
    }

    // ASP.NET json date format regex
    var aspNetRegex = /^(\-|\+)?(?:(\d*)[. ])?(\d+)\:(\d+)(?:\:(\d+)(\.\d*)?)?$/;

    // from http://docs.closure-library.googlecode.com/git/closure_goog_date_date.js.source.html
    // somewhat more in line with 4.4.3.2 2004 spec, but allows decimal anywhere
    // and further modified to allow for strings containing both week and day
    var isoRegex = /^(-|\+)?P(?:([-+]?[0-9,.]*)Y)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)W)?(?:([-+]?[0-9,.]*)D)?(?:T(?:([-+]?[0-9,.]*)H)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)S)?)?$/;

    function createDuration (input, key) {
        var duration = input,
            // matching against regexp is expensive, do it on demand
            match = null,
            sign,
            ret,
            diffRes;

        if (isDuration(input)) {
            duration = {
                ms : input._milliseconds,
                d  : input._days,
                M  : input._months
            };
        } else if (isNumber(input)) {
            duration = {};
            if (key) {
                duration[key] = input;
            } else {
                duration.milliseconds = input;
            }
        } else if (!!(match = aspNetRegex.exec(input))) {
            sign = (match[1] === '-') ? -1 : 1;
            duration = {
                y  : 0,
                d  : toInt(match[DATE])                         * sign,
                h  : toInt(match[HOUR])                         * sign,
                m  : toInt(match[MINUTE])                       * sign,
                s  : toInt(match[SECOND])                       * sign,
                ms : toInt(absRound(match[MILLISECOND] * 1000)) * sign // the millisecond decimal point is included in the match
            };
        } else if (!!(match = isoRegex.exec(input))) {
            sign = (match[1] === '-') ? -1 : (match[1] === '+') ? 1 : 1;
            duration = {
                y : parseIso(match[2], sign),
                M : parseIso(match[3], sign),
                w : parseIso(match[4], sign),
                d : parseIso(match[5], sign),
                h : parseIso(match[6], sign),
                m : parseIso(match[7], sign),
                s : parseIso(match[8], sign)
            };
        } else if (duration == null) {// checks for null or undefined
            duration = {};
        } else if (typeof duration === 'object' && ('from' in duration || 'to' in duration)) {
            diffRes = momentsDifference(createLocal(duration.from), createLocal(duration.to));

            duration = {};
            duration.ms = diffRes.milliseconds;
            duration.M = diffRes.months;
        }

        ret = new Duration(duration);

        if (isDuration(input) && hasOwnProp(input, '_locale')) {
            ret._locale = input._locale;
        }

        return ret;
    }

    createDuration.fn = Duration.prototype;
    createDuration.invalid = createInvalid$1;

    function parseIso (inp, sign) {
        // We'd normally use ~~inp for this, but unfortunately it also
        // converts floats to ints.
        // inp may be undefined, so careful calling replace on it.
        var res = inp && parseFloat(inp.replace(',', '.'));
        // apply sign while we're at it
        return (isNaN(res) ? 0 : res) * sign;
    }

    function positiveMomentsDifference(base, other) {
        var res = {milliseconds: 0, months: 0};

        res.months = other.month() - base.month() +
            (other.year() - base.year()) * 12;
        if (base.clone().add(res.months, 'M').isAfter(other)) {
            --res.months;
        }

        res.milliseconds = +other - +(base.clone().add(res.months, 'M'));

        return res;
    }

    function momentsDifference(base, other) {
        var res;
        if (!(base.isValid() && other.isValid())) {
            return {milliseconds: 0, months: 0};
        }

        other = cloneWithOffset(other, base);
        if (base.isBefore(other)) {
            res = positiveMomentsDifference(base, other);
        } else {
            res = positiveMomentsDifference(other, base);
            res.milliseconds = -res.milliseconds;
            res.months = -res.months;
        }

        return res;
    }

    // TODO: remove 'name' arg after deprecation is removed
    function createAdder(direction, name) {
        return function (val, period) {
            var dur, tmp;
            //invert the arguments, but complain about it
            if (period !== null && !isNaN(+period)) {
                deprecateSimple(name, 'moment().' + name  + '(period, number) is deprecated. Please use moment().' + name + '(number, period). ' +
                'See http://momentjs.com/guides/#/warnings/add-inverted-param/ for more info.');
                tmp = val; val = period; period = tmp;
            }

            val = typeof val === 'string' ? +val : val;
            dur = createDuration(val, period);
            addSubtract(this, dur, direction);
            return this;
        };
    }

    function addSubtract (mom, duration, isAdding, updateOffset) {
        var milliseconds = duration._milliseconds,
            days = absRound(duration._days),
            months = absRound(duration._months);

        if (!mom.isValid()) {
            // No op
            return;
        }

        updateOffset = updateOffset == null ? true : updateOffset;

        if (months) {
            setMonth(mom, get(mom, 'Month') + months * isAdding);
        }
        if (days) {
            set$1(mom, 'Date', get(mom, 'Date') + days * isAdding);
        }
        if (milliseconds) {
            mom._d.setTime(mom._d.valueOf() + milliseconds * isAdding);
        }
        if (updateOffset) {
            hooks.updateOffset(mom, days || months);
        }
    }

    var add      = createAdder(1, 'add');
    var subtract = createAdder(-1, 'subtract');

    function getCalendarFormat(myMoment, now) {
        var diff = myMoment.diff(now, 'days', true);
        return diff < -6 ? 'sameElse' :
                diff < -1 ? 'lastWeek' :
                diff < 0 ? 'lastDay' :
                diff < 1 ? 'sameDay' :
                diff < 2 ? 'nextDay' :
                diff < 7 ? 'nextWeek' : 'sameElse';
    }

    function calendar$1 (time, formats) {
        // We want to compare the start of today, vs this.
        // Getting start-of-today depends on whether we're local/utc/offset or not.
        var now = time || createLocal(),
            sod = cloneWithOffset(now, this).startOf('day'),
            format = hooks.calendarFormat(this, sod) || 'sameElse';

        var output = formats && (isFunction(formats[format]) ? formats[format].call(this, now) : formats[format]);

        return this.format(output || this.localeData().calendar(format, this, createLocal(now)));
    }

    function clone () {
        return new Moment(this);
    }

    function isAfter (input, units) {
        var localInput = isMoment(input) ? input : createLocal(input);
        if (!(this.isValid() && localInput.isValid())) {
            return false;
        }
        units = normalizeUnits(!isUndefined(units) ? units : 'millisecond');
        if (units === 'millisecond') {
            return this.valueOf() > localInput.valueOf();
        } else {
            return localInput.valueOf() < this.clone().startOf(units).valueOf();
        }
    }

    function isBefore (input, units) {
        var localInput = isMoment(input) ? input : createLocal(input);
        if (!(this.isValid() && localInput.isValid())) {
            return false;
        }
        units = normalizeUnits(!isUndefined(units) ? units : 'millisecond');
        if (units === 'millisecond') {
            return this.valueOf() < localInput.valueOf();
        } else {
            return this.clone().endOf(units).valueOf() < localInput.valueOf();
        }
    }

    function isBetween (from, to, units, inclusivity) {
        inclusivity = inclusivity || '()';
        return (inclusivity[0] === '(' ? this.isAfter(from, units) : !this.isBefore(from, units)) &&
            (inclusivity[1] === ')' ? this.isBefore(to, units) : !this.isAfter(to, units));
    }

    function isSame (input, units) {
        var localInput = isMoment(input) ? input : createLocal(input),
            inputMs;
        if (!(this.isValid() && localInput.isValid())) {
            return false;
        }
        units = normalizeUnits(units || 'millisecond');
        if (units === 'millisecond') {
            return this.valueOf() === localInput.valueOf();
        } else {
            inputMs = localInput.valueOf();
            return this.clone().startOf(units).valueOf() <= inputMs && inputMs <= this.clone().endOf(units).valueOf();
        }
    }

    function isSameOrAfter (input, units) {
        return this.isSame(input, units) || this.isAfter(input,units);
    }

    function isSameOrBefore (input, units) {
        return this.isSame(input, units) || this.isBefore(input,units);
    }

    function diff (input, units, asFloat) {
        var that,
            zoneDelta,
            output;

        if (!this.isValid()) {
            return NaN;
        }

        that = cloneWithOffset(input, this);

        if (!that.isValid()) {
            return NaN;
        }

        zoneDelta = (that.utcOffset() - this.utcOffset()) * 6e4;

        units = normalizeUnits(units);

        switch (units) {
            case 'year': output = monthDiff(this, that) / 12; break;
            case 'month': output = monthDiff(this, that); break;
            case 'quarter': output = monthDiff(this, that) / 3; break;
            case 'second': output = (this - that) / 1e3; break; // 1000
            case 'minute': output = (this - that) / 6e4; break; // 1000 * 60
            case 'hour': output = (this - that) / 36e5; break; // 1000 * 60 * 60
            case 'day': output = (this - that - zoneDelta) / 864e5; break; // 1000 * 60 * 60 * 24, negate dst
            case 'week': output = (this - that - zoneDelta) / 6048e5; break; // 1000 * 60 * 60 * 24 * 7, negate dst
            default: output = this - that;
        }

        return asFloat ? output : absFloor(output);
    }

    function monthDiff (a, b) {
        // difference in months
        var wholeMonthDiff = ((b.year() - a.year()) * 12) + (b.month() - a.month()),
            // b is in (anchor - 1 month, anchor + 1 month)
            anchor = a.clone().add(wholeMonthDiff, 'months'),
            anchor2, adjust;

        if (b - anchor < 0) {
            anchor2 = a.clone().add(wholeMonthDiff - 1, 'months');
            // linear across the month
            adjust = (b - anchor) / (anchor - anchor2);
        } else {
            anchor2 = a.clone().add(wholeMonthDiff + 1, 'months');
            // linear across the month
            adjust = (b - anchor) / (anchor2 - anchor);
        }

        //check for negative zero, return zero if negative zero
        return -(wholeMonthDiff + adjust) || 0;
    }

    hooks.defaultFormat = 'YYYY-MM-DDTHH:mm:ssZ';
    hooks.defaultFormatUtc = 'YYYY-MM-DDTHH:mm:ss[Z]';

    function toString () {
        return this.clone().locale('en').format('ddd MMM DD YYYY HH:mm:ss [GMT]ZZ');
    }

    function toISOString(keepOffset) {
        if (!this.isValid()) {
            return null;
        }
        var utc = keepOffset !== true;
        var m = utc ? this.clone().utc() : this;
        if (m.year() < 0 || m.year() > 9999) {
            return formatMoment(m, utc ? 'YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]' : 'YYYYYY-MM-DD[T]HH:mm:ss.SSSZ');
        }
        if (isFunction(Date.prototype.toISOString)) {
            // native implementation is ~50x faster, use it when we can
            if (utc) {
                return this.toDate().toISOString();
            } else {
                return new Date(this.valueOf() + this.utcOffset() * 60 * 1000).toISOString().replace('Z', formatMoment(m, 'Z'));
            }
        }
        return formatMoment(m, utc ? 'YYYY-MM-DD[T]HH:mm:ss.SSS[Z]' : 'YYYY-MM-DD[T]HH:mm:ss.SSSZ');
    }

    /**
     * Return a human readable representation of a moment that can
     * also be evaluated to get a new moment which is the same
     *
     * @link https://nodejs.org/dist/latest/docs/api/util.html#util_custom_inspect_function_on_objects
     */
    function inspect () {
        if (!this.isValid()) {
            return 'moment.invalid(/* ' + this._i + ' */)';
        }
        var func = 'moment';
        var zone = '';
        if (!this.isLocal()) {
            func = this.utcOffset() === 0 ? 'moment.utc' : 'moment.parseZone';
            zone = 'Z';
        }
        var prefix = '[' + func + '("]';
        var year = (0 <= this.year() && this.year() <= 9999) ? 'YYYY' : 'YYYYYY';
        var datetime = '-MM-DD[T]HH:mm:ss.SSS';
        var suffix = zone + '[")]';

        return this.format(prefix + year + datetime + suffix);
    }

    function format (inputString) {
        if (!inputString) {
            inputString = this.isUtc() ? hooks.defaultFormatUtc : hooks.defaultFormat;
        }
        var output = formatMoment(this, inputString);
        return this.localeData().postformat(output);
    }

    function from (time, withoutSuffix) {
        if (this.isValid() &&
                ((isMoment(time) && time.isValid()) ||
                 createLocal(time).isValid())) {
            return createDuration({to: this, from: time}).locale(this.locale()).humanize(!withoutSuffix);
        } else {
            return this.localeData().invalidDate();
        }
    }

    function fromNow (withoutSuffix) {
        return this.from(createLocal(), withoutSuffix);
    }

    function to (time, withoutSuffix) {
        if (this.isValid() &&
                ((isMoment(time) && time.isValid()) ||
                 createLocal(time).isValid())) {
            return createDuration({from: this, to: time}).locale(this.locale()).humanize(!withoutSuffix);
        } else {
            return this.localeData().invalidDate();
        }
    }

    function toNow (withoutSuffix) {
        return this.to(createLocal(), withoutSuffix);
    }

    // If passed a locale key, it will set the locale for this
    // instance.  Otherwise, it will return the locale configuration
    // variables for this instance.
    function locale (key) {
        var newLocaleData;

        if (key === undefined) {
            return this._locale._abbr;
        } else {
            newLocaleData = getLocale(key);
            if (newLocaleData != null) {
                this._locale = newLocaleData;
            }
            return this;
        }
    }

    var lang = deprecate(
        'moment().lang() is deprecated. Instead, use moment().localeData() to get the language configuration. Use moment().locale() to change languages.',
        function (key) {
            if (key === undefined) {
                return this.localeData();
            } else {
                return this.locale(key);
            }
        }
    );

    function localeData () {
        return this._locale;
    }

    function startOf (units) {
        units = normalizeUnits(units);
        // the following switch intentionally omits break keywords
        // to utilize falling through the cases.
        switch (units) {
            case 'year':
                this.month(0);
                /* falls through */
            case 'quarter':
            case 'month':
                this.date(1);
                /* falls through */
            case 'week':
            case 'isoWeek':
            case 'day':
            case 'date':
                this.hours(0);
                /* falls through */
            case 'hour':
                this.minutes(0);
                /* falls through */
            case 'minute':
                this.seconds(0);
                /* falls through */
            case 'second':
                this.milliseconds(0);
        }

        // weeks are a special case
        if (units === 'week') {
            this.weekday(0);
        }
        if (units === 'isoWeek') {
            this.isoWeekday(1);
        }

        // quarters are also special
        if (units === 'quarter') {
            this.month(Math.floor(this.month() / 3) * 3);
        }

        return this;
    }

    function endOf (units) {
        units = normalizeUnits(units);
        if (units === undefined || units === 'millisecond') {
            return this;
        }

        // 'date' is an alias for 'day', so it should be considered as such.
        if (units === 'date') {
            units = 'day';
        }

        return this.startOf(units).add(1, (units === 'isoWeek' ? 'week' : units)).subtract(1, 'ms');
    }

    function valueOf () {
        return this._d.valueOf() - ((this._offset || 0) * 60000);
    }

    function unix () {
        return Math.floor(this.valueOf() / 1000);
    }

    function toDate () {
        return new Date(this.valueOf());
    }

    function toArray () {
        var m = this;
        return [m.year(), m.month(), m.date(), m.hour(), m.minute(), m.second(), m.millisecond()];
    }

    function toObject () {
        var m = this;
        return {
            years: m.year(),
            months: m.month(),
            date: m.date(),
            hours: m.hours(),
            minutes: m.minutes(),
            seconds: m.seconds(),
            milliseconds: m.milliseconds()
        };
    }

    function toJSON () {
        // new Date(NaN).toJSON() === null
        return this.isValid() ? this.toISOString() : null;
    }

    function isValid$2 () {
        return isValid(this);
    }

    function parsingFlags () {
        return extend({}, getParsingFlags(this));
    }

    function invalidAt () {
        return getParsingFlags(this).overflow;
    }

    function creationData() {
        return {
            input: this._i,
            format: this._f,
            locale: this._locale,
            isUTC: this._isUTC,
            strict: this._strict
        };
    }

    // FORMATTING

    addFormatToken(0, ['gg', 2], 0, function () {
        return this.weekYear() % 100;
    });

    addFormatToken(0, ['GG', 2], 0, function () {
        return this.isoWeekYear() % 100;
    });

    function addWeekYearFormatToken (token, getter) {
        addFormatToken(0, [token, token.length], 0, getter);
    }

    addWeekYearFormatToken('gggg',     'weekYear');
    addWeekYearFormatToken('ggggg',    'weekYear');
    addWeekYearFormatToken('GGGG',  'isoWeekYear');
    addWeekYearFormatToken('GGGGG', 'isoWeekYear');

    // ALIASES

    addUnitAlias('weekYear', 'gg');
    addUnitAlias('isoWeekYear', 'GG');

    // PRIORITY

    addUnitPriority('weekYear', 1);
    addUnitPriority('isoWeekYear', 1);


    // PARSING

    addRegexToken('G',      matchSigned);
    addRegexToken('g',      matchSigned);
    addRegexToken('GG',     match1to2, match2);
    addRegexToken('gg',     match1to2, match2);
    addRegexToken('GGGG',   match1to4, match4);
    addRegexToken('gggg',   match1to4, match4);
    addRegexToken('GGGGG',  match1to6, match6);
    addRegexToken('ggggg',  match1to6, match6);

    addWeekParseToken(['gggg', 'ggggg', 'GGGG', 'GGGGG'], function (input, week, config, token) {
        week[token.substr(0, 2)] = toInt(input);
    });

    addWeekParseToken(['gg', 'GG'], function (input, week, config, token) {
        week[token] = hooks.parseTwoDigitYear(input);
    });

    // MOMENTS

    function getSetWeekYear (input) {
        return getSetWeekYearHelper.call(this,
                input,
                this.week(),
                this.weekday(),
                this.localeData()._week.dow,
                this.localeData()._week.doy);
    }

    function getSetISOWeekYear (input) {
        return getSetWeekYearHelper.call(this,
                input, this.isoWeek(), this.isoWeekday(), 1, 4);
    }

    function getISOWeeksInYear () {
        return weeksInYear(this.year(), 1, 4);
    }

    function getWeeksInYear () {
        var weekInfo = this.localeData()._week;
        return weeksInYear(this.year(), weekInfo.dow, weekInfo.doy);
    }

    function getSetWeekYearHelper(input, week, weekday, dow, doy) {
        var weeksTarget;
        if (input == null) {
            return weekOfYear(this, dow, doy).year;
        } else {
            weeksTarget = weeksInYear(input, dow, doy);
            if (week > weeksTarget) {
                week = weeksTarget;
            }
            return setWeekAll.call(this, input, week, weekday, dow, doy);
        }
    }

    function setWeekAll(weekYear, week, weekday, dow, doy) {
        var dayOfYearData = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy),
            date = createUTCDate(dayOfYearData.year, 0, dayOfYearData.dayOfYear);

        this.year(date.getUTCFullYear());
        this.month(date.getUTCMonth());
        this.date(date.getUTCDate());
        return this;
    }

    // FORMATTING

    addFormatToken('Q', 0, 'Qo', 'quarter');

    // ALIASES

    addUnitAlias('quarter', 'Q');

    // PRIORITY

    addUnitPriority('quarter', 7);

    // PARSING

    addRegexToken('Q', match1);
    addParseToken('Q', function (input, array) {
        array[MONTH] = (toInt(input) - 1) * 3;
    });

    // MOMENTS

    function getSetQuarter (input) {
        return input == null ? Math.ceil((this.month() + 1) / 3) : this.month((input - 1) * 3 + this.month() % 3);
    }

    // FORMATTING

    addFormatToken('D', ['DD', 2], 'Do', 'date');

    // ALIASES

    addUnitAlias('date', 'D');

    // PRIORITY
    addUnitPriority('date', 9);

    // PARSING

    addRegexToken('D',  match1to2);
    addRegexToken('DD', match1to2, match2);
    addRegexToken('Do', function (isStrict, locale) {
        // TODO: Remove "ordinalParse" fallback in next major release.
        return isStrict ?
          (locale._dayOfMonthOrdinalParse || locale._ordinalParse) :
          locale._dayOfMonthOrdinalParseLenient;
    });

    addParseToken(['D', 'DD'], DATE);
    addParseToken('Do', function (input, array) {
        array[DATE] = toInt(input.match(match1to2)[0]);
    });

    // MOMENTS

    var getSetDayOfMonth = makeGetSet('Date', true);

    // FORMATTING

    addFormatToken('DDD', ['DDDD', 3], 'DDDo', 'dayOfYear');

    // ALIASES

    addUnitAlias('dayOfYear', 'DDD');

    // PRIORITY
    addUnitPriority('dayOfYear', 4);

    // PARSING

    addRegexToken('DDD',  match1to3);
    addRegexToken('DDDD', match3);
    addParseToken(['DDD', 'DDDD'], function (input, array, config) {
        config._dayOfYear = toInt(input);
    });

    // HELPERS

    // MOMENTS

    function getSetDayOfYear (input) {
        var dayOfYear = Math.round((this.clone().startOf('day') - this.clone().startOf('year')) / 864e5) + 1;
        return input == null ? dayOfYear : this.add((input - dayOfYear), 'd');
    }

    // FORMATTING

    addFormatToken('m', ['mm', 2], 0, 'minute');

    // ALIASES

    addUnitAlias('minute', 'm');

    // PRIORITY

    addUnitPriority('minute', 14);

    // PARSING

    addRegexToken('m',  match1to2);
    addRegexToken('mm', match1to2, match2);
    addParseToken(['m', 'mm'], MINUTE);

    // MOMENTS

    var getSetMinute = makeGetSet('Minutes', false);

    // FORMATTING

    addFormatToken('s', ['ss', 2], 0, 'second');

    // ALIASES

    addUnitAlias('second', 's');

    // PRIORITY

    addUnitPriority('second', 15);

    // PARSING

    addRegexToken('s',  match1to2);
    addRegexToken('ss', match1to2, match2);
    addParseToken(['s', 'ss'], SECOND);

    // MOMENTS

    var getSetSecond = makeGetSet('Seconds', false);

    // FORMATTING

    addFormatToken('S', 0, 0, function () {
        return ~~(this.millisecond() / 100);
    });

    addFormatToken(0, ['SS', 2], 0, function () {
        return ~~(this.millisecond() / 10);
    });

    addFormatToken(0, ['SSS', 3], 0, 'millisecond');
    addFormatToken(0, ['SSSS', 4], 0, function () {
        return this.millisecond() * 10;
    });
    addFormatToken(0, ['SSSSS', 5], 0, function () {
        return this.millisecond() * 100;
    });
    addFormatToken(0, ['SSSSSS', 6], 0, function () {
        return this.millisecond() * 1000;
    });
    addFormatToken(0, ['SSSSSSS', 7], 0, function () {
        return this.millisecond() * 10000;
    });
    addFormatToken(0, ['SSSSSSSS', 8], 0, function () {
        return this.millisecond() * 100000;
    });
    addFormatToken(0, ['SSSSSSSSS', 9], 0, function () {
        return this.millisecond() * 1000000;
    });


    // ALIASES

    addUnitAlias('millisecond', 'ms');

    // PRIORITY

    addUnitPriority('millisecond', 16);

    // PARSING

    addRegexToken('S',    match1to3, match1);
    addRegexToken('SS',   match1to3, match2);
    addRegexToken('SSS',  match1to3, match3);

    var token;
    for (token = 'SSSS'; token.length <= 9; token += 'S') {
        addRegexToken(token, matchUnsigned);
    }

    function parseMs(input, array) {
        array[MILLISECOND] = toInt(('0.' + input) * 1000);
    }

    for (token = 'S'; token.length <= 9; token += 'S') {
        addParseToken(token, parseMs);
    }
    // MOMENTS

    var getSetMillisecond = makeGetSet('Milliseconds', false);

    // FORMATTING

    addFormatToken('z',  0, 0, 'zoneAbbr');
    addFormatToken('zz', 0, 0, 'zoneName');

    // MOMENTS

    function getZoneAbbr () {
        return this._isUTC ? 'UTC' : '';
    }

    function getZoneName () {
        return this._isUTC ? 'Coordinated Universal Time' : '';
    }

    var proto = Moment.prototype;

    proto.add               = add;
    proto.calendar          = calendar$1;
    proto.clone             = clone;
    proto.diff              = diff;
    proto.endOf             = endOf;
    proto.format            = format;
    proto.from              = from;
    proto.fromNow           = fromNow;
    proto.to                = to;
    proto.toNow             = toNow;
    proto.get               = stringGet;
    proto.invalidAt         = invalidAt;
    proto.isAfter           = isAfter;
    proto.isBefore          = isBefore;
    proto.isBetween         = isBetween;
    proto.isSame            = isSame;
    proto.isSameOrAfter     = isSameOrAfter;
    proto.isSameOrBefore    = isSameOrBefore;
    proto.isValid           = isValid$2;
    proto.lang              = lang;
    proto.locale            = locale;
    proto.localeData        = localeData;
    proto.max               = prototypeMax;
    proto.min               = prototypeMin;
    proto.parsingFlags      = parsingFlags;
    proto.set               = stringSet;
    proto.startOf           = startOf;
    proto.subtract          = subtract;
    proto.toArray           = toArray;
    proto.toObject          = toObject;
    proto.toDate            = toDate;
    proto.toISOString       = toISOString;
    proto.inspect           = inspect;
    proto.toJSON            = toJSON;
    proto.toString          = toString;
    proto.unix              = unix;
    proto.valueOf           = valueOf;
    proto.creationData      = creationData;
    proto.year       = getSetYear;
    proto.isLeapYear = getIsLeapYear;
    proto.weekYear    = getSetWeekYear;
    proto.isoWeekYear = getSetISOWeekYear;
    proto.quarter = proto.quarters = getSetQuarter;
    proto.month       = getSetMonth;
    proto.daysInMonth = getDaysInMonth;
    proto.week           = proto.weeks        = getSetWeek;
    proto.isoWeek        = proto.isoWeeks     = getSetISOWeek;
    proto.weeksInYear    = getWeeksInYear;
    proto.isoWeeksInYear = getISOWeeksInYear;
    proto.date       = getSetDayOfMonth;
    proto.day        = proto.days             = getSetDayOfWeek;
    proto.weekday    = getSetLocaleDayOfWeek;
    proto.isoWeekday = getSetISODayOfWeek;
    proto.dayOfYear  = getSetDayOfYear;
    proto.hour = proto.hours = getSetHour;
    proto.minute = proto.minutes = getSetMinute;
    proto.second = proto.seconds = getSetSecond;
    proto.millisecond = proto.milliseconds = getSetMillisecond;
    proto.utcOffset            = getSetOffset;
    proto.utc                  = setOffsetToUTC;
    proto.local                = setOffsetToLocal;
    proto.parseZone            = setOffsetToParsedOffset;
    proto.hasAlignedHourOffset = hasAlignedHourOffset;
    proto.isDST                = isDaylightSavingTime;
    proto.isLocal              = isLocal;
    proto.isUtcOffset          = isUtcOffset;
    proto.isUtc                = isUtc;
    proto.isUTC                = isUtc;
    proto.zoneAbbr = getZoneAbbr;
    proto.zoneName = getZoneName;
    proto.dates  = deprecate('dates accessor is deprecated. Use date instead.', getSetDayOfMonth);
    proto.months = deprecate('months accessor is deprecated. Use month instead', getSetMonth);
    proto.years  = deprecate('years accessor is deprecated. Use year instead', getSetYear);
    proto.zone   = deprecate('moment().zone is deprecated, use moment().utcOffset instead. http://momentjs.com/guides/#/warnings/zone/', getSetZone);
    proto.isDSTShifted = deprecate('isDSTShifted is deprecated. See http://momentjs.com/guides/#/warnings/dst-shifted/ for more information', isDaylightSavingTimeShifted);

    function createUnix (input) {
        return createLocal(input * 1000);
    }

    function createInZone () {
        return createLocal.apply(null, arguments).parseZone();
    }

    function preParsePostFormat (string) {
        return string;
    }

    var proto$1 = Locale.prototype;

    proto$1.calendar        = calendar;
    proto$1.longDateFormat  = longDateFormat;
    proto$1.invalidDate     = invalidDate;
    proto$1.ordinal         = ordinal;
    proto$1.preparse        = preParsePostFormat;
    proto$1.postformat      = preParsePostFormat;
    proto$1.relativeTime    = relativeTime;
    proto$1.pastFuture      = pastFuture;
    proto$1.set             = set;

    proto$1.months            =        localeMonths;
    proto$1.monthsShort       =        localeMonthsShort;
    proto$1.monthsParse       =        localeMonthsParse;
    proto$1.monthsRegex       = monthsRegex;
    proto$1.monthsShortRegex  = monthsShortRegex;
    proto$1.week = localeWeek;
    proto$1.firstDayOfYear = localeFirstDayOfYear;
    proto$1.firstDayOfWeek = localeFirstDayOfWeek;

    proto$1.weekdays       =        localeWeekdays;
    proto$1.weekdaysMin    =        localeWeekdaysMin;
    proto$1.weekdaysShort  =        localeWeekdaysShort;
    proto$1.weekdaysParse  =        localeWeekdaysParse;

    proto$1.weekdaysRegex       =        weekdaysRegex;
    proto$1.weekdaysShortRegex  =        weekdaysShortRegex;
    proto$1.weekdaysMinRegex    =        weekdaysMinRegex;

    proto$1.isPM = localeIsPM;
    proto$1.meridiem = localeMeridiem;

    function get$1 (format, index, field, setter) {
        var locale = getLocale();
        var utc = createUTC().set(setter, index);
        return locale[field](utc, format);
    }

    function listMonthsImpl (format, index, field) {
        if (isNumber(format)) {
            index = format;
            format = undefined;
        }

        format = format || '';

        if (index != null) {
            return get$1(format, index, field, 'month');
        }

        var i;
        var out = [];
        for (i = 0; i < 12; i++) {
            out[i] = get$1(format, i, field, 'month');
        }
        return out;
    }

    // ()
    // (5)
    // (fmt, 5)
    // (fmt)
    // (true)
    // (true, 5)
    // (true, fmt, 5)
    // (true, fmt)
    function listWeekdaysImpl (localeSorted, format, index, field) {
        if (typeof localeSorted === 'boolean') {
            if (isNumber(format)) {
                index = format;
                format = undefined;
            }

            format = format || '';
        } else {
            format = localeSorted;
            index = format;
            localeSorted = false;

            if (isNumber(format)) {
                index = format;
                format = undefined;
            }

            format = format || '';
        }

        var locale = getLocale(),
            shift = localeSorted ? locale._week.dow : 0;

        if (index != null) {
            return get$1(format, (index + shift) % 7, field, 'day');
        }

        var i;
        var out = [];
        for (i = 0; i < 7; i++) {
            out[i] = get$1(format, (i + shift) % 7, field, 'day');
        }
        return out;
    }

    function listMonths (format, index) {
        return listMonthsImpl(format, index, 'months');
    }

    function listMonthsShort (format, index) {
        return listMonthsImpl(format, index, 'monthsShort');
    }

    function listWeekdays (localeSorted, format, index) {
        return listWeekdaysImpl(localeSorted, format, index, 'weekdays');
    }

    function listWeekdaysShort (localeSorted, format, index) {
        return listWeekdaysImpl(localeSorted, format, index, 'weekdaysShort');
    }

    function listWeekdaysMin (localeSorted, format, index) {
        return listWeekdaysImpl(localeSorted, format, index, 'weekdaysMin');
    }

    getSetGlobalLocale('en', {
        dayOfMonthOrdinalParse: /\d{1,2}(th|st|nd|rd)/,
        ordinal : function (number) {
            var b = number % 10,
                output = (toInt(number % 100 / 10) === 1) ? 'th' :
                (b === 1) ? 'st' :
                (b === 2) ? 'nd' :
                (b === 3) ? 'rd' : 'th';
            return number + output;
        }
    });

    // Side effect imports

    hooks.lang = deprecate('moment.lang is deprecated. Use moment.locale instead.', getSetGlobalLocale);
    hooks.langData = deprecate('moment.langData is deprecated. Use moment.localeData instead.', getLocale);

    var mathAbs = Math.abs;

    function abs () {
        var data           = this._data;

        this._milliseconds = mathAbs(this._milliseconds);
        this._days         = mathAbs(this._days);
        this._months       = mathAbs(this._months);

        data.milliseconds  = mathAbs(data.milliseconds);
        data.seconds       = mathAbs(data.seconds);
        data.minutes       = mathAbs(data.minutes);
        data.hours         = mathAbs(data.hours);
        data.months        = mathAbs(data.months);
        data.years         = mathAbs(data.years);

        return this;
    }

    function addSubtract$1 (duration, input, value, direction) {
        var other = createDuration(input, value);

        duration._milliseconds += direction * other._milliseconds;
        duration._days         += direction * other._days;
        duration._months       += direction * other._months;

        return duration._bubble();
    }

    // supports only 2.0-style add(1, 's') or add(duration)
    function add$1 (input, value) {
        return addSubtract$1(this, input, value, 1);
    }

    // supports only 2.0-style subtract(1, 's') or subtract(duration)
    function subtract$1 (input, value) {
        return addSubtract$1(this, input, value, -1);
    }

    function absCeil (number) {
        if (number < 0) {
            return Math.floor(number);
        } else {
            return Math.ceil(number);
        }
    }

    function bubble () {
        var milliseconds = this._milliseconds;
        var days         = this._days;
        var months       = this._months;
        var data         = this._data;
        var seconds, minutes, hours, years, monthsFromDays;

        // if we have a mix of positive and negative values, bubble down first
        // check: https://github.com/moment/moment/issues/2166
        if (!((milliseconds >= 0 && days >= 0 && months >= 0) ||
                (milliseconds <= 0 && days <= 0 && months <= 0))) {
            milliseconds += absCeil(monthsToDays(months) + days) * 864e5;
            days = 0;
            months = 0;
        }

        // The following code bubbles up values, see the tests for
        // examples of what that means.
        data.milliseconds = milliseconds % 1000;

        seconds           = absFloor(milliseconds / 1000);
        data.seconds      = seconds % 60;

        minutes           = absFloor(seconds / 60);
        data.minutes      = minutes % 60;

        hours             = absFloor(minutes / 60);
        data.hours        = hours % 24;

        days += absFloor(hours / 24);

        // convert days to months
        monthsFromDays = absFloor(daysToMonths(days));
        months += monthsFromDays;
        days -= absCeil(monthsToDays(monthsFromDays));

        // 12 months -> 1 year
        years = absFloor(months / 12);
        months %= 12;

        data.days   = days;
        data.months = months;
        data.years  = years;

        return this;
    }

    function daysToMonths (days) {
        // 400 years have 146097 days (taking into account leap year rules)
        // 400 years have 12 months === 4800
        return days * 4800 / 146097;
    }

    function monthsToDays (months) {
        // the reverse of daysToMonths
        return months * 146097 / 4800;
    }

    function as (units) {
        if (!this.isValid()) {
            return NaN;
        }
        var days;
        var months;
        var milliseconds = this._milliseconds;

        units = normalizeUnits(units);

        if (units === 'month' || units === 'year') {
            days   = this._days   + milliseconds / 864e5;
            months = this._months + daysToMonths(days);
            return units === 'month' ? months : months / 12;
        } else {
            // handle milliseconds separately because of floating point math errors (issue #1867)
            days = this._days + Math.round(monthsToDays(this._months));
            switch (units) {
                case 'week'   : return days / 7     + milliseconds / 6048e5;
                case 'day'    : return days         + milliseconds / 864e5;
                case 'hour'   : return days * 24    + milliseconds / 36e5;
                case 'minute' : return days * 1440  + milliseconds / 6e4;
                case 'second' : return days * 86400 + milliseconds / 1000;
                // Math.floor prevents floating point math errors here
                case 'millisecond': return Math.floor(days * 864e5) + milliseconds;
                default: throw new Error('Unknown unit ' + units);
            }
        }
    }

    // TODO: Use this.as('ms')?
    function valueOf$1 () {
        if (!this.isValid()) {
            return NaN;
        }
        return (
            this._milliseconds +
            this._days * 864e5 +
            (this._months % 12) * 2592e6 +
            toInt(this._months / 12) * 31536e6
        );
    }

    function makeAs (alias) {
        return function () {
            return this.as(alias);
        };
    }

    var asMilliseconds = makeAs('ms');
    var asSeconds      = makeAs('s');
    var asMinutes      = makeAs('m');
    var asHours        = makeAs('h');
    var asDays         = makeAs('d');
    var asWeeks        = makeAs('w');
    var asMonths       = makeAs('M');
    var asYears        = makeAs('y');

    function clone$1 () {
        return createDuration(this);
    }

    function get$2 (units) {
        units = normalizeUnits(units);
        return this.isValid() ? this[units + 's']() : NaN;
    }

    function makeGetter(name) {
        return function () {
            return this.isValid() ? this._data[name] : NaN;
        };
    }

    var milliseconds = makeGetter('milliseconds');
    var seconds      = makeGetter('seconds');
    var minutes      = makeGetter('minutes');
    var hours        = makeGetter('hours');
    var days         = makeGetter('days');
    var months       = makeGetter('months');
    var years        = makeGetter('years');

    function weeks () {
        return absFloor(this.days() / 7);
    }

    var round = Math.round;
    var thresholds = {
        ss: 44,         // a few seconds to seconds
        s : 45,         // seconds to minute
        m : 45,         // minutes to hour
        h : 22,         // hours to day
        d : 26,         // days to month
        M : 11          // months to year
    };

    // helper function for moment.fn.from, moment.fn.fromNow, and moment.duration.fn.humanize
    function substituteTimeAgo(string, number, withoutSuffix, isFuture, locale) {
        return locale.relativeTime(number || 1, !!withoutSuffix, string, isFuture);
    }

    function relativeTime$1 (posNegDuration, withoutSuffix, locale) {
        var duration = createDuration(posNegDuration).abs();
        var seconds  = round(duration.as('s'));
        var minutes  = round(duration.as('m'));
        var hours    = round(duration.as('h'));
        var days     = round(duration.as('d'));
        var months   = round(duration.as('M'));
        var years    = round(duration.as('y'));

        var a = seconds <= thresholds.ss && ['s', seconds]  ||
                seconds < thresholds.s   && ['ss', seconds] ||
                minutes <= 1             && ['m']           ||
                minutes < thresholds.m   && ['mm', minutes] ||
                hours   <= 1             && ['h']           ||
                hours   < thresholds.h   && ['hh', hours]   ||
                days    <= 1             && ['d']           ||
                days    < thresholds.d   && ['dd', days]    ||
                months  <= 1             && ['M']           ||
                months  < thresholds.M   && ['MM', months]  ||
                years   <= 1             && ['y']           || ['yy', years];

        a[2] = withoutSuffix;
        a[3] = +posNegDuration > 0;
        a[4] = locale;
        return substituteTimeAgo.apply(null, a);
    }

    // This function allows you to set the rounding function for relative time strings
    function getSetRelativeTimeRounding (roundingFunction) {
        if (roundingFunction === undefined) {
            return round;
        }
        if (typeof(roundingFunction) === 'function') {
            round = roundingFunction;
            return true;
        }
        return false;
    }

    // This function allows you to set a threshold for relative time strings
    function getSetRelativeTimeThreshold (threshold, limit) {
        if (thresholds[threshold] === undefined) {
            return false;
        }
        if (limit === undefined) {
            return thresholds[threshold];
        }
        thresholds[threshold] = limit;
        if (threshold === 's') {
            thresholds.ss = limit - 1;
        }
        return true;
    }

    function humanize (withSuffix) {
        if (!this.isValid()) {
            return this.localeData().invalidDate();
        }

        var locale = this.localeData();
        var output = relativeTime$1(this, !withSuffix, locale);

        if (withSuffix) {
            output = locale.pastFuture(+this, output);
        }

        return locale.postformat(output);
    }

    var abs$1 = Math.abs;

    function sign(x) {
        return ((x > 0) - (x < 0)) || +x;
    }

    function toISOString$1() {
        // for ISO strings we do not use the normal bubbling rules:
        //  * milliseconds bubble up until they become hours
        //  * days do not bubble at all
        //  * months bubble up until they become years
        // This is because there is no context-free conversion between hours and days
        // (think of clock changes)
        // and also not between days and months (28-31 days per month)
        if (!this.isValid()) {
            return this.localeData().invalidDate();
        }

        var seconds = abs$1(this._milliseconds) / 1000;
        var days         = abs$1(this._days);
        var months       = abs$1(this._months);
        var minutes, hours, years;

        // 3600 seconds -> 60 minutes -> 1 hour
        minutes           = absFloor(seconds / 60);
        hours             = absFloor(minutes / 60);
        seconds %= 60;
        minutes %= 60;

        // 12 months -> 1 year
        years  = absFloor(months / 12);
        months %= 12;


        // inspired by https://github.com/dordille/moment-isoduration/blob/master/moment.isoduration.js
        var Y = years;
        var M = months;
        var D = days;
        var h = hours;
        var m = minutes;
        var s = seconds ? seconds.toFixed(3).replace(/\.?0+$/, '') : '';
        var total = this.asSeconds();

        if (!total) {
            // this is the same as C#'s (Noda) and python (isodate)...
            // but not other JS (goog.date)
            return 'P0D';
        }

        var totalSign = total < 0 ? '-' : '';
        var ymSign = sign(this._months) !== sign(total) ? '-' : '';
        var daysSign = sign(this._days) !== sign(total) ? '-' : '';
        var hmsSign = sign(this._milliseconds) !== sign(total) ? '-' : '';

        return totalSign + 'P' +
            (Y ? ymSign + Y + 'Y' : '') +
            (M ? ymSign + M + 'M' : '') +
            (D ? daysSign + D + 'D' : '') +
            ((h || m || s) ? 'T' : '') +
            (h ? hmsSign + h + 'H' : '') +
            (m ? hmsSign + m + 'M' : '') +
            (s ? hmsSign + s + 'S' : '');
    }

    var proto$2 = Duration.prototype;

    proto$2.isValid        = isValid$1;
    proto$2.abs            = abs;
    proto$2.add            = add$1;
    proto$2.subtract       = subtract$1;
    proto$2.as             = as;
    proto$2.asMilliseconds = asMilliseconds;
    proto$2.asSeconds      = asSeconds;
    proto$2.asMinutes      = asMinutes;
    proto$2.asHours        = asHours;
    proto$2.asDays         = asDays;
    proto$2.asWeeks        = asWeeks;
    proto$2.asMonths       = asMonths;
    proto$2.asYears        = asYears;
    proto$2.valueOf        = valueOf$1;
    proto$2._bubble        = bubble;
    proto$2.clone          = clone$1;
    proto$2.get            = get$2;
    proto$2.milliseconds   = milliseconds;
    proto$2.seconds        = seconds;
    proto$2.minutes        = minutes;
    proto$2.hours          = hours;
    proto$2.days           = days;
    proto$2.weeks          = weeks;
    proto$2.months         = months;
    proto$2.years          = years;
    proto$2.humanize       = humanize;
    proto$2.toISOString    = toISOString$1;
    proto$2.toString       = toISOString$1;
    proto$2.toJSON         = toISOString$1;
    proto$2.locale         = locale;
    proto$2.localeData     = localeData;

    proto$2.toIsoString = deprecate('toIsoString() is deprecated. Please use toISOString() instead (notice the capitals)', toISOString$1);
    proto$2.lang = lang;

    // Side effect imports

    // FORMATTING

    addFormatToken('X', 0, 0, 'unix');
    addFormatToken('x', 0, 0, 'valueOf');

    // PARSING

    addRegexToken('x', matchSigned);
    addRegexToken('X', matchTimestamp);
    addParseToken('X', function (input, array, config) {
        config._d = new Date(parseFloat(input, 10) * 1000);
    });
    addParseToken('x', function (input, array, config) {
        config._d = new Date(toInt(input));
    });

    // Side effect imports


    hooks.version = '2.22.1';

    setHookCallback(createLocal);

    hooks.fn                    = proto;
    hooks.min                   = min;
    hooks.max                   = max;
    hooks.now                   = now;
    hooks.utc                   = createUTC;
    hooks.unix                  = createUnix;
    hooks.months                = listMonths;
    hooks.isDate                = isDate;
    hooks.locale                = getSetGlobalLocale;
    hooks.invalid               = createInvalid;
    hooks.duration              = createDuration;
    hooks.isMoment              = isMoment;
    hooks.weekdays              = listWeekdays;
    hooks.parseZone             = createInZone;
    hooks.localeData            = getLocale;
    hooks.isDuration            = isDuration;
    hooks.monthsShort           = listMonthsShort;
    hooks.weekdaysMin           = listWeekdaysMin;
    hooks.defineLocale          = defineLocale;
    hooks.updateLocale          = updateLocale;
    hooks.locales               = listLocales;
    hooks.weekdaysShort         = listWeekdaysShort;
    hooks.normalizeUnits        = normalizeUnits;
    hooks.relativeTimeRounding  = getSetRelativeTimeRounding;
    hooks.relativeTimeThreshold = getSetRelativeTimeThreshold;
    hooks.calendarFormat        = getCalendarFormat;
    hooks.prototype             = proto;

    // currently HTML5 input type only supports 24-hour formats
    hooks.HTML5_FMT = {
        DATETIME_LOCAL: 'YYYY-MM-DDTHH:mm',             // <input type="datetime-local" />
        DATETIME_LOCAL_SECONDS: 'YYYY-MM-DDTHH:mm:ss',  // <input type="datetime-local" step="1" />
        DATETIME_LOCAL_MS: 'YYYY-MM-DDTHH:mm:ss.SSS',   // <input type="datetime-local" step="0.001" />
        DATE: 'YYYY-MM-DD',                             // <input type="date" />
        TIME: 'HH:mm',                                  // <input type="time" />
        TIME_SECONDS: 'HH:mm:ss',                       // <input type="time" step="1" />
        TIME_MS: 'HH:mm:ss.SSS',                        // <input type="time" step="0.001" />
        WEEK: 'YYYY-[W]WW',                             // <input type="week" />
        MONTH: 'YYYY-MM'                                // <input type="month" />
    };

    return hooks;

})));
/**
* @version: 2.1.27
* @author: Dan Grossman http://www.dangrossman.info/
* @copyright: Copyright (c) 2012-2017 Dan Grossman. All rights reserved.
* @license: Licensed under the MIT license. See http://www.opensource.org/licenses/mit-license.php
* @website: http://www.daterangepicker.com/
*/
// Follow the UMD template https://github.com/umdjs/umd/blob/master/templates/returnExportsGlobal.js
(function (root, factory) {
    if (typeof define === 'function' && define.amd) {
        // AMD. Make globaly available as well
        define(['moment', 'jquery'], function (moment, jquery) {
            if (!jquery.fn) jquery.fn = {}; // webpack server rendering
            return factory(moment, jquery);
        });
    } else if (typeof module === 'object' && module.exports) {
        // Node / Browserify
        //isomorphic issue
        var jQuery = (typeof window != 'undefined') ? window.jQuery : undefined;
        if (!jQuery) {
            jQuery = require('jquery');
            if (!jQuery.fn) jQuery.fn = {};
        }
        var moment = (typeof window != 'undefined' && typeof window.moment != 'undefined') ? window.moment : require('moment');
        module.exports = factory(moment, jQuery);
    } else {
        // Browser globals
        root.daterangepicker = factory(root.moment, root.jQuery);
    }
}(this, function(moment, $) {
    var DateRangePicker = function(element, options, cb) {

        //default settings for options
        this.parentEl = 'body';
        this.element = $(element);
        this.startDate = moment().startOf('day');
        this.endDate = moment().endOf('day');
        this.minDate = false;
        this.maxDate = false;
        this.dateLimit = false;
        this.autoApply = false;
        this.singleDatePicker = false;
        this.showDropdowns = false;
        this.showWeekNumbers = false;
        this.showISOWeekNumbers = false;
        this.showCustomRangeLabel = true;
        this.timePicker = false;
        this.timePicker24Hour = false;
        this.timePickerIncrement = 1;
        this.timePickerSeconds = false;
        this.linkedCalendars = true;
        this.autoUpdateInput = true;
        this.alwaysShowCalendars = false;
        this.ranges = {};
        this.offsetTop = false;
        this.offsetLeft = false;

        this.opens = 'right';
        if (this.element.hasClass('pull-right'))
            this.opens = 'left';

        this.drops = 'down';
        if (this.element.hasClass('dropup'))
            this.drops = 'up';

        this.buttonClasses = 'btn btn-sm';
        this.applyClass = 'btn-success';
        this.cancelClass = 'btn-default';

        this.locale = {
            direction: 'ltr',
            format: moment.localeData().longDateFormat('L'),
            separator: ' - ',
            applyLabel: 'Apply',
            cancelLabel: 'Cancel',
            weekLabel: 'W',
            customRangeLabel: 'Custom Range',
            daysOfWeek: moment.weekdaysMin(),
            monthNames: moment.monthsShort(),
            firstDay: moment.localeData().firstDayOfWeek()
        };

        this.callback = function() { };

        //some state information
        this.isShowing = false;
        this.leftCalendar = {};
        this.rightCalendar = {};

        //custom options from user
        if (typeof options !== 'object' || options === null)
            options = {};

        //allow setting options with data attributes
        //data-api options will be overwritten with custom javascript options
        options = $.extend(this.element.data(), options);

        //html template for the picker UI
        if (typeof options.template !== 'string' && !(options.template instanceof $))
            options.template = '<div class="daterangepicker dropdown-menu">' +
                '<div class="calendar left">' +
                    '<div class="daterangepicker_input">' +
                      '<input class="input-mini form-control" type="text" name="daterangepicker_start" value="" />' +
                      '<i class="fa fa-calendar glyphicon glyphicon-calendar"></i>' +
                      '<div class="calendar-time">' +
                        '<div></div>' +
                        '<i class="fa fa-clock-o glyphicon glyphicon-time"></i>' +
                      '</div>' +
                    '</div>' +
                    '<div class="calendar-table"></div>' +
                '</div>' +
                '<div class="calendar right">' +
                    '<div class="daterangepicker_input">' +
                      '<input class="input-mini form-control" type="text" name="daterangepicker_end" value="" />' +
                      '<i class="fa fa-calendar glyphicon glyphicon-calendar"></i>' +
                      '<div class="calendar-time">' +
                        '<div></div>' +
                        '<i class="fa fa-clock-o glyphicon glyphicon-time"></i>' +
                      '</div>' +
                    '</div>' +
                    '<div class="calendar-table"></div>' +
                '</div>' +
                '<div class="ranges">' +
                    '<div class="range_inputs">' +
                        '<a class="cancelBtn">Cancel</a>' +
                        '<a class="applyBtn">Apply</a> ' +
                    '</div>' +
                '</div>' +
            '</div>';

        this.parentEl = (options.parentEl && $(options.parentEl).length) ? $(options.parentEl) : $(this.parentEl);
        this.container = $(options.template).appendTo(this.parentEl);

        //
        // handle all the possible options overriding defaults
        //

        if (typeof options.locale === 'object') {

            if (typeof options.locale.direction === 'string')
                this.locale.direction = options.locale.direction;

            if (typeof options.locale.format === 'string')
                this.locale.format = options.locale.format;

            if (typeof options.locale.separator === 'string')
                this.locale.separator = options.locale.separator;

            if (typeof options.locale.daysOfWeek === 'object')
                this.locale.daysOfWeek = options.locale.daysOfWeek.slice();

            if (typeof options.locale.monthNames === 'object')
              this.locale.monthNames = options.locale.monthNames.slice();

            if (typeof options.locale.firstDay === 'number')
              this.locale.firstDay = options.locale.firstDay;

            if (typeof options.locale.applyLabel === 'string')
              this.locale.applyLabel = options.locale.applyLabel;

            if (typeof options.locale.cancelLabel === 'string')
              this.locale.cancelLabel = options.locale.cancelLabel;

            if (typeof options.locale.weekLabel === 'string')
              this.locale.weekLabel = options.locale.weekLabel;

            if (typeof options.locale.customRangeLabel === 'string'){
                //Support unicode chars in the custom range name.
                var elem = document.createElement('textarea');
                elem.innerHTML = options.locale.customRangeLabel;
                var rangeHtml = elem.value;
                this.locale.customRangeLabel = rangeHtml;
            }
        }
        this.container.addClass(this.locale.direction);

        if (typeof options.startDate === 'string')
            this.startDate = moment(options.startDate, this.locale.format);

        if (typeof options.endDate === 'string')
            this.endDate = moment(options.endDate, this.locale.format);

        if (typeof options.minDate === 'string')
            this.minDate = moment(options.minDate, this.locale.format);

        if (typeof options.maxDate === 'string')
            this.maxDate = moment(options.maxDate, this.locale.format);

        if (typeof options.startDate === 'object')
            this.startDate = moment(options.startDate);

        if (typeof options.endDate === 'object')
            this.endDate = moment(options.endDate);

        if (typeof options.minDate === 'object')
            this.minDate = moment(options.minDate);

        if (typeof options.maxDate === 'object')
            this.maxDate = moment(options.maxDate);

        // sanity check for bad options
        if (this.minDate && this.startDate.isBefore(this.minDate))
            this.startDate = this.minDate.clone();

        // sanity check for bad options
        if (this.maxDate && this.endDate.isAfter(this.maxDate))
            this.endDate = this.maxDate.clone();

        if (typeof options.applyClass === 'string')
            this.applyClass = options.applyClass;

        if (typeof options.cancelClass === 'string')
            this.cancelClass = options.cancelClass;

        if (typeof options.dateLimit === 'object')
            this.dateLimit = options.dateLimit;

        if (typeof options.opens === 'string')
            this.opens = options.opens;

        if (typeof options.drops === 'string')
            this.drops = options.drops;

        if (typeof options.showWeekNumbers === 'boolean')
            this.showWeekNumbers = options.showWeekNumbers;

        if (typeof options.showISOWeekNumbers === 'boolean')
            this.showISOWeekNumbers = options.showISOWeekNumbers;

        if (typeof options.buttonClasses === 'string')
            this.buttonClasses = options.buttonClasses;

        if (typeof options.buttonClasses === 'object')
            this.buttonClasses = options.buttonClasses.join(' ');

        if (typeof options.showDropdowns === 'boolean')
            this.showDropdowns = options.showDropdowns;

        if (typeof options.showCustomRangeLabel === 'boolean')
            this.showCustomRangeLabel = options.showCustomRangeLabel;

        if (typeof options.singleDatePicker === 'boolean') {
            this.singleDatePicker = options.singleDatePicker;
            if (this.singleDatePicker)
                this.endDate = this.startDate.clone();
        }

        if (typeof options.timePicker === 'boolean')
            this.timePicker = options.timePicker;

        if (typeof options.timePickerSeconds === 'boolean')
            this.timePickerSeconds = options.timePickerSeconds;

        if (typeof options.timePickerIncrement === 'number')
            this.timePickerIncrement = options.timePickerIncrement;

        if (typeof options.timePicker24Hour === 'boolean')
            this.timePicker24Hour = options.timePicker24Hour;

        if (typeof options.autoApply === 'boolean')
            this.autoApply = options.autoApply;

        if (typeof options.autoUpdateInput === 'boolean')
            this.autoUpdateInput = options.autoUpdateInput;

        if (typeof options.linkedCalendars === 'boolean')
            this.linkedCalendars = options.linkedCalendars;

        if (typeof options.isInvalidDate === 'function')
            this.isInvalidDate = options.isInvalidDate;

        if (typeof options.isCustomDate === 'function')
            this.isCustomDate = options.isCustomDate;

        if (typeof options.alwaysShowCalendars === 'boolean')
            this.alwaysShowCalendars = options.alwaysShowCalendars;
        
        if (typeof options.offsetTop === 'number')
            this.offsetTop = options.offsetTop;
        
        if (typeof options.offsetLeft === 'number')
            this.offsetLeft = options.offsetLeft;
        
        // update day names order to firstDay
        if (this.locale.firstDay != 0) {
            var iterator = this.locale.firstDay;
            while (iterator > 0) {
                this.locale.daysOfWeek.push(this.locale.daysOfWeek.shift());
                iterator--;
            }
        }

        var start, end, range;

        //if no start/end dates set, check if an input element contains initial values
        if (typeof options.startDate === 'undefined' && typeof options.endDate === 'undefined') {
            if ($(this.element).is('input[type=text]')) {
                var val = $(this.element).val(),
                    split = val.split(this.locale.separator);

                start = end = null;

                if (split.length == 2) {
                    start = moment(split[0], this.locale.format);
                    end = moment(split[1], this.locale.format);
                } else if (this.singleDatePicker && val !== "") {
                    start = moment(val, this.locale.format);
                    end = moment(val, this.locale.format);
                }
                if (start !== null && end !== null) {
                    this.setStartDate(start);
                    this.setEndDate(end);
                }
            }
        }

        if (typeof options.ranges === 'object') {
            for (range in options.ranges) {

                if (typeof options.ranges[range][0] === 'string')
                    start = moment(options.ranges[range][0], this.locale.format);
                else
                    start = moment(options.ranges[range][0]);

                if (typeof options.ranges[range][1] === 'string')
                    end = moment(options.ranges[range][1], this.locale.format);
                else
                    end = moment(options.ranges[range][1]);

                // If the start or end date exceed those allowed by the minDate or dateLimit
                // options, shorten the range to the allowable period.
                if (this.minDate && start.isBefore(this.minDate))
                    start = this.minDate.clone();

                var maxDate = this.maxDate;
                if (this.dateLimit && maxDate && start.clone().add(this.dateLimit).isAfter(maxDate))
                    maxDate = start.clone().add(this.dateLimit);
                if (maxDate && end.isAfter(maxDate))
                    end = maxDate.clone();

                // If the end of the range is before the minimum or the start of the range is
                // after the maximum, don't display this range option at all.
                if ((this.minDate && end.isBefore(this.minDate, this.timepicker ? 'minute' : 'day')) 
                  || (maxDate && start.isAfter(maxDate, this.timepicker ? 'minute' : 'day')))
                    continue;

                //Support unicode chars in the range names.
                var elem = document.createElement('textarea');
                elem.innerHTML = range;
                var rangeHtml = elem.value;

                this.ranges[rangeHtml] = [start, end];
            }

            var list = '<ul>';
            for (range in this.ranges) {
                list += '<li data-range-key="' + range + '">' + range + '</li>';
            }
            if (this.showCustomRangeLabel) {
                list += '<li data-range-key="' + this.locale.customRangeLabel + '">' + this.locale.customRangeLabel + '</li>';
            }
            list += '</ul>';
            this.container.find('.ranges').prepend(list);
        }

        if (typeof cb === 'function') {
            this.callback = cb;
        }

        if (!this.timePicker) {
            this.startDate = this.startDate.startOf('day');
            this.endDate = this.endDate.endOf('day');
            this.container.find('.calendar-time').hide();
        }

        //can't be used together for now
        if (this.timePicker && this.autoApply)
            this.autoApply = false;

        if (this.autoApply && typeof options.ranges !== 'object') {
            this.container.find('.ranges').hide();
        } else if (this.autoApply) {
            this.container.find('.applyBtn, .cancelBtn').addClass('hide');
        }

        if (this.singleDatePicker) {
            this.container.addClass('single');
            this.container.find('.calendar.left').addClass('single');
            this.container.find('.calendar.left').show();
            this.container.find('.calendar.right').hide();
            this.container.find('.daterangepicker_input input, .daterangepicker_input > i').hide();
            if (this.timePicker) {
                this.container.find('.ranges ul').hide();
            } else {
                this.container.find('.ranges').hide();
            }
        }

        if ((typeof options.ranges === 'undefined' && !this.singleDatePicker) || this.alwaysShowCalendars) {
            this.container.addClass('show-calendar');
        }

        this.container.addClass('opens' + this.opens);

        //swap the position of the predefined ranges if opens right
        if (typeof options.ranges !== 'undefined' && this.opens == 'right') {
            this.container.find('.ranges').prependTo( this.container.find('.calendar.left').parent() );
        }

        //apply CSS classes and labels to buttons
        this.container.find('.applyBtn, .cancelBtn').addClass(this.buttonClasses);
        if (this.applyClass.length)
            this.container.find('.applyBtn').addClass(this.applyClass);
        if (this.cancelClass.length)
            this.container.find('.cancelBtn').addClass(this.cancelClass);
        this.container.find('.applyBtn').html(this.locale.applyLabel);
        this.container.find('.cancelBtn').html(this.locale.cancelLabel);

        //
        // event listeners
        //

        this.container.find('.calendar')
            .on('click.daterangepicker', '.prev', $.proxy(this.clickPrev, this))
            .on('click.daterangepicker', '.next', $.proxy(this.clickNext, this))
            .on('mousedown.daterangepicker', 'td.available', $.proxy(this.clickDate, this))
            .on('mouseenter.daterangepicker', 'td.available', $.proxy(this.hoverDate, this))
            .on('mouseleave.daterangepicker', 'td.available', $.proxy(this.updateFormInputs, this))
            .on('change.daterangepicker', 'select.yearselect', $.proxy(this.monthOrYearChanged, this))
            .on('change.daterangepicker', 'select.monthselect', $.proxy(this.monthOrYearChanged, this))
            .on('change.daterangepicker', 'select.hourselect,select.minuteselect,select.secondselect,select.ampmselect', $.proxy(this.timeChanged, this))
            .on('click.daterangepicker', '.daterangepicker_input input', $.proxy(this.showCalendars, this))
            .on('focus.daterangepicker', '.daterangepicker_input input', $.proxy(this.formInputsFocused, this))
            .on('blur.daterangepicker', '.daterangepicker_input input', $.proxy(this.formInputsBlurred, this))
            .on('change.daterangepicker', '.daterangepicker_input input', $.proxy(this.formInputsChanged, this))
            .on('keydown.daterangepicker', '.daterangepicker_input input', $.proxy(this.formInputsKeydown, this));

        this.container.find('.ranges')
            .on('click.daterangepicker', '.applyBtn', $.proxy(this.clickApply, this))
            .on('click.daterangepicker', '.cancelBtn', $.proxy(this.clickCancel, this))
            .on('click.daterangepicker', 'li', $.proxy(this.clickRange, this))
            .on('mouseenter.daterangepicker', 'li', $.proxy(this.hoverRange, this))
            .on('mouseleave.daterangepicker', 'li', $.proxy(this.updateFormInputs, this));

        if (this.element.is('input') || this.element.is('button')) {
            this.element.on({
                'click.daterangepicker': $.proxy(this.show, this),
                'focus.daterangepicker': $.proxy(this.show, this),
                'keyup.daterangepicker': $.proxy(this.elementChanged, this),
                'keydown.daterangepicker': $.proxy(this.keydown, this) //IE 11 compatibility
            });
        } else {
            this.element.on('click.daterangepicker', $.proxy(this.toggle, this));
            this.element.on('keydown.daterangepicker', $.proxy(this.toggle, this));
        }

        //
        // if attached to a text input, set the initial value
        //

        if (this.element.is('input') && !this.singleDatePicker && this.autoUpdateInput) {
            this.element.val(this.startDate.format(this.locale.format) + this.locale.separator + this.endDate.format(this.locale.format));
            this.element.trigger('change');
        } else if (this.element.is('input') && this.autoUpdateInput) {
            this.element.val(this.startDate.format(this.locale.format));
            this.element.trigger('change');
        }

    };

    DateRangePicker.prototype = {

        constructor: DateRangePicker,

        setStartDate: function(startDate) {
            if (typeof startDate === 'string')
                this.startDate = moment(startDate, this.locale.format);

            if (typeof startDate === 'object')
                this.startDate = moment(startDate);

            if (!this.timePicker)
                this.startDate = this.startDate.startOf('day');

            if (this.timePicker && this.timePickerIncrement)
                this.startDate.minute(Math.round(this.startDate.minute() / this.timePickerIncrement) * this.timePickerIncrement);

            if (this.minDate && this.startDate.isBefore(this.minDate)) {
                this.startDate = this.minDate.clone();
                if (this.timePicker && this.timePickerIncrement)
                    this.startDate.minute(Math.round(this.startDate.minute() / this.timePickerIncrement) * this.timePickerIncrement);
            }

            if (this.maxDate && this.startDate.isAfter(this.maxDate)) {
                this.startDate = this.maxDate.clone();
                if (this.timePicker && this.timePickerIncrement)
                    this.startDate.minute(Math.floor(this.startDate.minute() / this.timePickerIncrement) * this.timePickerIncrement);
            }

            if (!this.isShowing)
                this.updateElement();

            this.updateMonthsInView();
        },

        setEndDate: function(endDate) {
            if (typeof endDate === 'string')
                this.endDate = moment(endDate, this.locale.format);

            if (typeof endDate === 'object')
                this.endDate = moment(endDate);

            if (!this.timePicker)
                this.endDate = this.endDate.add(1,'d').startOf('day').subtract(1,'second');

            if (this.timePicker && this.timePickerIncrement)
                this.endDate.minute(Math.round(this.endDate.minute() / this.timePickerIncrement) * this.timePickerIncrement);

            if (this.endDate.isBefore(this.startDate))
                this.endDate = this.startDate.clone();

            if (this.maxDate && this.endDate.isAfter(this.maxDate))
                this.endDate = this.maxDate.clone();

            if (this.dateLimit && this.startDate.clone().add(this.dateLimit).isBefore(this.endDate))
                this.endDate = this.startDate.clone().add(this.dateLimit);

            this.previousRightTime = this.endDate.clone();

            if (!this.isShowing)
                this.updateElement();

            this.updateMonthsInView();
        },

        isInvalidDate: function() {
            return false;
        },

        isCustomDate: function() {
            return false;
        },

        updateView: function() {
            if (this.timePicker) {
                this.renderTimePicker('left');
                this.renderTimePicker('right');
                if (!this.endDate) {
                    this.container.find('.right .calendar-time select').attr('disabled', 'disabled').addClass('disabled');
                } else {
                    this.container.find('.right .calendar-time select').removeAttr('disabled').removeClass('disabled');
                }
            }
            if (this.endDate) {
                this.container.find('input[name="daterangepicker_end"]').removeClass('active');
                this.container.find('input[name="daterangepicker_start"]').addClass('active');
            } else {
                this.container.find('input[name="daterangepicker_end"]').addClass('active');
                this.container.find('input[name="daterangepicker_start"]').removeClass('active');
            }
            this.updateMonthsInView();
            this.updateCalendars();
            this.updateFormInputs();
        },

        updateMonthsInView: function() {
            if (this.endDate) {

                //if both dates are visible already, do nothing
                if (!this.singleDatePicker && this.leftCalendar.month && this.rightCalendar.month &&
                    (this.startDate.format('YYYY-MM') == this.leftCalendar.month.format('YYYY-MM') || this.startDate.format('YYYY-MM') == this.rightCalendar.month.format('YYYY-MM'))
                    &&
                    (this.endDate.format('YYYY-MM') == this.leftCalendar.month.format('YYYY-MM') || this.endDate.format('YYYY-MM') == this.rightCalendar.month.format('YYYY-MM'))
                    ) {
                    return;
                }

                this.leftCalendar.month = this.startDate.clone().date(2);
                if (!this.linkedCalendars && (this.endDate.month() != this.startDate.month() || this.endDate.year() != this.startDate.year())) {
                    this.rightCalendar.month = this.endDate.clone().date(2);
                } else {
                    this.rightCalendar.month = this.startDate.clone().date(2).add(1, 'month');
                }

            } else {
                if (this.leftCalendar.month.format('YYYY-MM') != this.startDate.format('YYYY-MM') && this.rightCalendar.month.format('YYYY-MM') != this.startDate.format('YYYY-MM')) {
                    this.leftCalendar.month = this.startDate.clone().date(2);
                    this.rightCalendar.month = this.startDate.clone().date(2).add(1, 'month');
                }
            }
            if (this.maxDate && this.linkedCalendars && !this.singleDatePicker && this.rightCalendar.month > this.maxDate) {
              this.rightCalendar.month = this.maxDate.clone().date(2);
              this.leftCalendar.month = this.maxDate.clone().date(2).subtract(1, 'month');
            }
        },

        updateCalendars: function() {

            if (this.timePicker) {
                var hour, minute, second;
                if (this.endDate) {
                    hour = parseInt(this.container.find('.left .hourselect').val(), 10);
                    minute = parseInt(this.container.find('.left .minuteselect').val(), 10);
                    second = this.timePickerSeconds ? parseInt(this.container.find('.left .secondselect').val(), 10) : 0;
                    if (!this.timePicker24Hour) {
                        var ampm = this.container.find('.left .ampmselect').val();
                        if (ampm === 'PM' && hour < 12)
                            hour += 12;
                        if (ampm === 'AM' && hour === 12)
                            hour = 0;
                    }
                } else {
                    hour = parseInt(this.container.find('.right .hourselect').val(), 10);
                    minute = parseInt(this.container.find('.right .minuteselect').val(), 10);
                    second = this.timePickerSeconds ? parseInt(this.container.find('.right .secondselect').val(), 10) : 0;
                    if (!this.timePicker24Hour) {
                        var ampm = this.container.find('.right .ampmselect').val();
                        if (ampm === 'PM' && hour < 12)
                            hour += 12;
                        if (ampm === 'AM' && hour === 12)
                            hour = 0;
                    }
                }
                this.leftCalendar.month.hour(hour).minute(minute).second(second);
                this.rightCalendar.month.hour(hour).minute(minute).second(second);
            }

            this.renderCalendar('left');
            this.renderCalendar('right');

            //highlight any predefined range matching the current start and end dates
            this.container.find('.ranges li').removeClass('active');
            if (this.endDate == null) return;

            this.calculateChosenLabel();
        },

        renderCalendar: function(side) {

            //
            // Build the matrix of dates that will populate the calendar
            //

            var calendar = side == 'left' ? this.leftCalendar : this.rightCalendar;
            var month = calendar.month.month();
            var year = calendar.month.year();
            var hour = calendar.month.hour();
            var minute = calendar.month.minute();
            var second = calendar.month.second();
            var daysInMonth = moment([year, month]).daysInMonth();
            var firstDay = moment([year, month, 1]);
            var lastDay = moment([year, month, daysInMonth]);
            var lastMonth = moment(firstDay).subtract(1, 'month').month();
            var lastYear = moment(firstDay).subtract(1, 'month').year();
            var daysInLastMonth = moment([lastYear, lastMonth]).daysInMonth();
            var dayOfWeek = firstDay.day();

            //initialize a 6 rows x 7 columns array for the calendar
            var calendar = [];
            calendar.firstDay = firstDay;
            calendar.lastDay = lastDay;

            for (var i = 0; i < 6; i++) {
                calendar[i] = [];
            }

            //populate the calendar with date objects
            var startDay = daysInLastMonth - dayOfWeek + this.locale.firstDay + 1;
            if (startDay > daysInLastMonth)
                startDay -= 7;

            if (dayOfWeek == this.locale.firstDay)
                startDay = daysInLastMonth - 6;

            var curDate = moment([lastYear, lastMonth, startDay, 12, minute, second]);

            var col, row;
            for (var i = 0, col = 0, row = 0; i < 42; i++, col++, curDate = moment(curDate).add(24, 'hour')) {
                if (i > 0 && col % 7 === 0) {
                    col = 0;
                    row++;
                }
                calendar[row][col] = curDate.clone().hour(hour).minute(minute).second(second);
                curDate.hour(12);

                if (this.minDate && calendar[row][col].format('YYYY-MM-DD') == this.minDate.format('YYYY-MM-DD') && calendar[row][col].isBefore(this.minDate) && side == 'left') {
                    calendar[row][col] = this.minDate.clone();
                }

                if (this.maxDate && calendar[row][col].format('YYYY-MM-DD') == this.maxDate.format('YYYY-MM-DD') && calendar[row][col].isAfter(this.maxDate) && side == 'right') {
                    calendar[row][col] = this.maxDate.clone();
                }

            }

            //make the calendar object available to hoverDate/clickDate
            if (side == 'left') {
                this.leftCalendar.calendar = calendar;
            } else {
                this.rightCalendar.calendar = calendar;
            }

            //
            // Display the calendar
            //

            var minDate = side == 'left' ? this.minDate : this.startDate;
            var maxDate = this.maxDate;
            var selected = side == 'left' ? this.startDate : this.endDate;
            var arrow = this.locale.direction == 'ltr' ? {left: 'chevron-left', right: 'chevron-right'} : {left: 'chevron-right', right: 'chevron-left'};

            var html = '<table class="table-condensed">';
            html += '<thead>';
            html += '<tr>';

            // add empty cell for week number
            if (this.showWeekNumbers || this.showISOWeekNumbers)
                html += '<th></th>';

            if ((!minDate || minDate.isBefore(calendar.firstDay)) && (!this.linkedCalendars || side == 'left')) {
                html += '<th class="prev available"><svg class="icon icon-prev"><use xlink:href="#icon-prev"></use></svg></th>';
            } else {
                html += '<th></th>';
            }

            var dateHtml = this.locale.monthNames[calendar[1][1].month()] + calendar[1][1].format(" YYYY");

            if (this.showDropdowns) {
                var currentMonth = calendar[1][1].month();
                var currentYear = calendar[1][1].year();
                var maxYear = (maxDate && maxDate.year()) || (currentYear + 5);
                var minYear = (minDate && minDate.year()) || (currentYear - 50);
                var inMinYear = currentYear == minYear;
                var inMaxYear = currentYear == maxYear;

                var monthHtml = '<select class="monthselect">';
                for (var m = 0; m < 12; m++) {
                    if ((!inMinYear || m >= minDate.month()) && (!inMaxYear || m <= maxDate.month())) {
                        monthHtml += "<option value='" + m + "'" +
                            (m === currentMonth ? " selected='selected'" : "") +
                            ">" + this.locale.monthNames[m] + "</option>";
                    } else {
                        monthHtml += "<option value='" + m + "'" +
                            (m === currentMonth ? " selected='selected'" : "") +
                            " disabled='disabled'>" + this.locale.monthNames[m] + "</option>";
                    }
                }
                monthHtml += "</select>";

                var yearHtml = '<select class="yearselect">';
                for (var y = minYear; y <= maxYear; y++) {
                    yearHtml += '<option value="' + y + '"' +
                        (y === currentYear ? ' selected="selected"' : '') +
                        '>' + y + '</option>';
                }
                yearHtml += '</select>';

                dateHtml = monthHtml + yearHtml;
            }

            html += '<th colspan="5" class="month">' + dateHtml + '</th>';
            if ((!maxDate || maxDate.isAfter(calendar.lastDay)) && (!this.linkedCalendars || side == 'right' || this.singleDatePicker)) {
                html += '<th class="next available"><svg class="icon icon-next"><use xlink:href="#icon-next"></use></svg></th>';
            } else {
                html += '<th></th>';
            }

            html += '</tr>';
            html += '<tr>';

            // add week number label
            if (this.showWeekNumbers || this.showISOWeekNumbers)
                html += '<th class="week">' + this.locale.weekLabel + '</th>';

            $.each(this.locale.daysOfWeek, function(index, dayOfWeek) {
                html += '<th>' + dayOfWeek + '</th>';
            });

            html += '</tr>';
            html += '</thead>';
            html += '<tbody>';

            //adjust maxDate to reflect the dateLimit setting in order to
            //grey out end dates beyond the dateLimit
            if (this.endDate == null && this.dateLimit) {
                var maxLimit = this.startDate.clone().add(this.dateLimit).endOf('day');
                if (!maxDate || maxLimit.isBefore(maxDate)) {
                    maxDate = maxLimit;
                }
            }

            for (var row = 0; row < 6; row++) {
                html += '<tr>';

                // add week number
                if (this.showWeekNumbers)
                    html += '<td class="week">' + calendar[row][0].week() + '</td>';
                else if (this.showISOWeekNumbers)
                    html += '<td class="week">' + calendar[row][0].isoWeek() + '</td>';

                for (var col = 0; col < 7; col++) {

                    var classes = [];

                    //highlight today's date
                    if (calendar[row][col].isSame(new Date(), "day"))
                        classes.push('today');

                    //highlight weekends
                    if (calendar[row][col].isoWeekday() > 5)
                        classes.push('weekend');

                    //grey out the dates in other months displayed at beginning and end of this calendar
                    if (calendar[row][col].month() != calendar[1][1].month())
                        classes.push('off');

                    //don't allow selection of dates before the minimum date
                    if (this.minDate && calendar[row][col].isBefore(this.minDate, 'day'))
                        classes.push('off', 'disabled');

                    //don't allow selection of dates after the maximum date
                    if (maxDate && calendar[row][col].isAfter(maxDate, 'day'))
                        classes.push('off', 'disabled');

                    //don't allow selection of date if a custom function decides it's invalid
                    if (this.isInvalidDate(calendar[row][col]))
                        classes.push('off', 'disabled');

                    //highlight the currently selected start date
                    if (calendar[row][col].format('YYYY-MM-DD') == this.startDate.format('YYYY-MM-DD'))
                        classes.push('active', 'start-date');

                    //highlight the currently selected end date
                    if (this.endDate != null && calendar[row][col].format('YYYY-MM-DD') == this.endDate.format('YYYY-MM-DD'))
                        classes.push('active', 'end-date');

                    //highlight dates in-between the selected dates
                    if (this.endDate != null && calendar[row][col] > this.startDate && calendar[row][col] < this.endDate)
                        classes.push('in-range');

                    //apply custom classes for this date
                    var isCustom = this.isCustomDate(calendar[row][col]);
                    if (isCustom !== false) {
                        if (typeof isCustom === 'string')
                            classes.push(isCustom);
                        else
                            Array.prototype.push.apply(classes, isCustom);
                    }

                    var cname = '', disabled = false;
                    for (var i = 0; i < classes.length; i++) {
                        cname += classes[i] + ' ';
                        if (classes[i] == 'disabled')
                            disabled = true;
                    }
                    if (!disabled)
                        cname += 'available';

                    html += '<td class="' + cname.replace(/^\s+|\s+$/g, '') + '" data-title="' + 'r' + row + 'c' + col + '">' + calendar[row][col].date() + '</td>';

                }
                html += '</tr>';
            }

            html += '</tbody>';
            html += '</table>';

            this.container.find('.calendar.' + side + ' .calendar-table').html(html);

        },

        renderTimePicker: function(side) {

            // Don't bother updating the time picker if it's currently disabled
            // because an end date hasn't been clicked yet
            if (side == 'right' && !this.endDate) return;

            var html, selected, minDate, maxDate = this.maxDate;

            if (this.dateLimit && (!this.maxDate || this.startDate.clone().add(this.dateLimit).isAfter(this.maxDate)))
                maxDate = this.startDate.clone().add(this.dateLimit);

            if (side == 'left') {
                selected = this.startDate.clone();
                minDate = this.minDate;
            } else if (side == 'right') {
                selected = this.endDate.clone();
                minDate = this.startDate;

                //Preserve the time already selected
                var timeSelector = this.container.find('.calendar.right .calendar-time div');
                if (timeSelector.html() != '') {

                    selected.hour(timeSelector.find('.hourselect option:selected').val() || selected.hour());
                    selected.minute(timeSelector.find('.minuteselect option:selected').val() || selected.minute());
                    selected.second(timeSelector.find('.secondselect option:selected').val() || selected.second());

                    if (!this.timePicker24Hour) {
                        var ampm = timeSelector.find('.ampmselect option:selected').val();
                        if (ampm === 'PM' && selected.hour() < 12)
                            selected.hour(selected.hour() + 12);
                        if (ampm === 'AM' && selected.hour() === 12)
                            selected.hour(0);
                    }

                }

                if (selected.isBefore(this.startDate))
                    selected = this.startDate.clone();

                if (maxDate && selected.isAfter(maxDate))
                    selected = maxDate.clone();

            }

            //
            // hours
            //

            html = '<select class="hourselect">';

            var start = this.timePicker24Hour ? 0 : 1;
            var end = this.timePicker24Hour ? 23 : 12;

            for (var i = start; i <= end; i++) {
                var i_in_24 = i;
                if (!this.timePicker24Hour)
                    i_in_24 = selected.hour() >= 12 ? (i == 12 ? 12 : i + 12) : (i == 12 ? 0 : i);

                var time = selected.clone().hour(i_in_24);
                var disabled = false;
                if (minDate && time.minute(59).isBefore(minDate))
                    disabled = true;
                if (maxDate && time.minute(0).isAfter(maxDate))
                    disabled = true;

                if (i_in_24 == selected.hour() && !disabled) {
                    html += '<option value="' + i + '" selected="selected">' + i + '</option>';
                } else if (disabled) {
                    html += '<option value="' + i + '" disabled="disabled" class="disabled">' + i + '</option>';
                } else {
                    html += '<option value="' + i + '">' + i + '</option>';
                }
            }

            html += '</select> ';

            //
            // minutes
            //

            html += ': <select class="minuteselect">';

            for (var i = 0; i < 60; i += this.timePickerIncrement) {
                var padded = i < 10 ? '0' + i : i;
                var time = selected.clone().minute(i);

                var disabled = false;
                if (minDate && time.second(59).isBefore(minDate))
                    disabled = true;
                if (maxDate && time.second(0).isAfter(maxDate))
                    disabled = true;

                if (selected.minute() == i && !disabled) {
                    html += '<option value="' + i + '" selected="selected">' + padded + '</option>';
                } else if (disabled) {
                    html += '<option value="' + i + '" disabled="disabled" class="disabled">' + padded + '</option>';
                } else {
                    html += '<option value="' + i + '">' + padded + '</option>';
                }
            }

            html += '</select> ';

            //
            // seconds
            //

            if (this.timePickerSeconds) {
                html += ': <select class="secondselect">';

                for (var i = 0; i < 60; i++) {
                    var padded = i < 10 ? '0' + i : i;
                    var time = selected.clone().second(i);

                    var disabled = false;
                    if (minDate && time.isBefore(minDate))
                        disabled = true;
                    if (maxDate && time.isAfter(maxDate))
                        disabled = true;

                    if (selected.second() == i && !disabled) {
                        html += '<option value="' + i + '" selected="selected">' + padded + '</option>';
                    } else if (disabled) {
                        html += '<option value="' + i + '" disabled="disabled" class="disabled">' + padded + '</option>';
                    } else {
                        html += '<option value="' + i + '">' + padded + '</option>';
                    }
                }

                html += '</select> ';
            }

            //
            // AM/PM
            //

            if (!this.timePicker24Hour) {
                html += '<select class="ampmselect">';

                var am_html = '';
                var pm_html = '';

                if (minDate && selected.clone().hour(12).minute(0).second(0).isBefore(minDate))
                    am_html = ' disabled="disabled" class="disabled"';

                if (maxDate && selected.clone().hour(0).minute(0).second(0).isAfter(maxDate))
                    pm_html = ' disabled="disabled" class="disabled"';

                if (selected.hour() >= 12) {
                    html += '<option value="AM"' + am_html + '>AM</option><option value="PM" selected="selected"' + pm_html + '>PM</option>';
                } else {
                    html += '<option value="AM" selected="selected"' + am_html + '>AM</option><option value="PM"' + pm_html + '>PM</option>';
                }

                html += '</select>';
            }

            this.container.find('.calendar.' + side + ' .calendar-time div').html(html);

        },

        updateFormInputs: function() {

            //ignore mouse movements while an above-calendar text input has focus
            if (this.container.find('input[name=daterangepicker_start]').is(":focus") || this.container.find('input[name=daterangepicker_end]').is(":focus"))
                return;

            this.container.find('input[name=daterangepicker_start]').val(this.startDate.format(this.locale.format));
            if (this.endDate)
                this.container.find('input[name=daterangepicker_end]').val(this.endDate.format(this.locale.format));

            if (this.singleDatePicker || (this.endDate && (this.startDate.isBefore(this.endDate) || this.startDate.isSame(this.endDate)))) {
                this.container.find('button.applyBtn').removeAttr('disabled');
            } else {
                this.container.find('button.applyBtn').attr('disabled', 'disabled');
            }

        },

        move: function() {
            var parentOffset = { top: 0, left: 0 },
                containerTop;
            var parentRightEdge = $(window).width();
            if (!this.parentEl.is('body')) {
                parentOffset = {
                    top: this.parentEl.offset().top - this.parentEl.scrollTop(),
                    left: this.parentEl.offset().left - this.parentEl.scrollLeft()
                };
                parentRightEdge = this.parentEl[0].clientWidth + this.parentEl.offset().left;
            }
            
            if (this.offsetTop !== false) {
                containerTop = this.offsetTop;
            } else if (this.drops == 'up') {
                containerTop = this.element.offset().top - this.container.outerHeight() - parentOffset.top;
            } else {
                containerTop = this.element.offset().top + this.element.outerHeight() - parentOffset.top;
            }
            this.container[this.drops == 'up' ? 'addClass' : 'removeClass']('dropup');

            if (this.opens == 'left') {
                this.container.css({
                    top: containerTop,
                    right: parentRightEdge - this.element.offset().left - this.element.outerWidth(),
                    left: 'auto'
                });
                if (this.container.offset().left < 0) {
                    this.container.css({
                        right: 'auto',
                        left: 9
                    });
                }
            } else if (this.opens == 'center') {
                this.container.css({
                    top: containerTop,
                    left: this.element.offset().left - parentOffset.left + this.element.outerWidth() / 2
                            - this.container.outerWidth() / 2,
                    right: 'auto'
                });
                if (this.container.offset().left < 0) {
                    this.container.css({
                        right: 'auto',
                        left: 9
                    });
                }
            } else {
                
                if (this.offsetLeft !== false) {
                    containerLeft = this.offsetLeft;
                } else {
                    containerLeft = this.element.offset().left - parentOffset.left;
                }
                
                this.container.css({
                    top: containerTop,
                    left: containerLeft,
                    right: 'auto'
                });
                
                if (this.container.offset().left + this.container.outerWidth() > $(window).width()) {
                    
                    if (this.offsetLeft !== false) {
                        containerLeft = this.offsetLeft;
                    } else {
                        containerLeft = 'auto';
                    }
                    
                    this.container.css({
                        left: containerLeft,
                        right: 0
                    });
                }
            }
        },

        show: function(e) {
            if (this.isShowing) return;

            // Create a click proxy that is private to this instance of datepicker, for unbinding
            this._outsideClickProxy = $.proxy(function(e) { this.outsideClick(e); }, this);

            // Bind global datepicker mousedown for hiding and
            $(document)
              .on('mousedown.daterangepicker', this._outsideClickProxy)
              // also support mobile devices
              .on('touchend.daterangepicker', this._outsideClickProxy)
              // also explicitly play nice with Bootstrap dropdowns, which stopPropagation when clicking them
              .on('click.daterangepicker', '[data-toggle=dropdown]', this._outsideClickProxy)
              // and also close when focus changes to outside the picker (eg. tabbing between controls)
              .on('focusin.daterangepicker', this._outsideClickProxy);

            // Reposition the picker if the window is resized while it's open
            $(window).on('resize.daterangepicker', $.proxy(function(e) { this.move(e); }, this));

            this.oldStartDate = this.startDate.clone();
            this.oldEndDate = this.endDate.clone();
            this.previousRightTime = this.endDate.clone();

            this.updateView();
            this.container.show();
            this.move();
            this.element.trigger('show.daterangepicker', this);
            this.isShowing = true;
        },

        hide: function(e) {
            if (!this.isShowing) return;

            //incomplete date selection, revert to last values
            if (!this.endDate) {
                this.startDate = this.oldStartDate.clone();
                this.endDate = this.oldEndDate.clone();
            }

            //if a new date range was selected, invoke the user callback function
            if (!this.startDate.isSame(this.oldStartDate) || !this.endDate.isSame(this.oldEndDate))
                this.callback(this.startDate, this.endDate, this.chosenLabel);

            //if picker is attached to a text input, update it
            this.updateElement();

            $(document).off('.daterangepicker');
            $(window).off('.daterangepicker');
            this.container.hide();
            this.element.trigger('hide.daterangepicker', this);
            this.isShowing = false;
        },

        toggle: function(e) {
            if (this.isShowing) {
                this.hide();
            } else {
                this.show();
            }
        },

        outsideClick: function(e) {
            var target = $(e.target);
            // if the page is clicked anywhere except within the daterangerpicker/button
            // itself then call this.hide()
            if (
                // ie modal dialog fix
                e.type == "focusin" ||
                target.closest(this.element).length ||
                target.closest(this.container).length ||
                target.closest('.calendar-table').length
                ) return;
            this.hide();
            this.element.trigger('outsideClick.daterangepicker', this);
        },

        showCalendars: function() {
            this.container.addClass('show-calendar');
            this.move();
            this.element.trigger('showCalendar.daterangepicker', this);
        },

        hideCalendars: function() {
            this.container.removeClass('show-calendar');
            this.element.trigger('hideCalendar.daterangepicker', this);
        },

        hoverRange: function(e) {

            //ignore mouse movements while an above-calendar text input has focus
            if (this.container.find('input[name=daterangepicker_start]').is(":focus") || this.container.find('input[name=daterangepicker_end]').is(":focus"))
                return;

            var label = e.target.getAttribute('data-range-key');

            if (label == this.locale.customRangeLabel) {
                this.updateView();
            } else {
                var dates = this.ranges[label];
                this.container.find('input[name=daterangepicker_start]').val(dates[0].format(this.locale.format));
                this.container.find('input[name=daterangepicker_end]').val(dates[1].format(this.locale.format));
            }

        },

        clickRange: function(e) {
            var label = e.target.getAttribute('data-range-key');
            this.chosenLabel = label;
            if (label == this.locale.customRangeLabel) {
                this.showCalendars();
            } else {
                var dates = this.ranges[label];
                this.startDate = dates[0];
                this.endDate = dates[1];

                if (!this.timePicker) {
                    this.startDate.startOf('day');
                    this.endDate.endOf('day');
                }

                if (!this.alwaysShowCalendars)
                    this.hideCalendars();
                this.clickApply();
            }
        },

        clickPrev: function(e) {
            var cal = $(e.target).parents('.calendar');
            if (cal.hasClass('left')) {
                this.leftCalendar.month.subtract(1, 'month');
                if (this.linkedCalendars)
                    this.rightCalendar.month.subtract(1, 'month');
            } else {
                this.rightCalendar.month.subtract(1, 'month');
            }
            this.updateCalendars();
        },

        clickNext: function(e) {
            var cal = $(e.target).parents('.calendar');
            if (cal.hasClass('left')) {
                this.leftCalendar.month.add(1, 'month');
            } else {
                this.rightCalendar.month.add(1, 'month');
                if (this.linkedCalendars)
                    this.leftCalendar.month.add(1, 'month');
            }
            this.updateCalendars();
        },

        hoverDate: function(e) {

            //ignore mouse movements while an above-calendar text input has focus
            //if (this.container.find('input[name=daterangepicker_start]').is(":focus") || this.container.find('input[name=daterangepicker_end]').is(":focus"))
            //    return;

            //ignore dates that can't be selected
            if (!$(e.target).hasClass('available')) return;

            //have the text inputs above calendars reflect the date being hovered over
            var title = $(e.target).attr('data-title');
            var row = title.substr(1, 1);
            var col = title.substr(3, 1);
            var cal = $(e.target).parents('.calendar');
            var date = cal.hasClass('left') ? this.leftCalendar.calendar[row][col] : this.rightCalendar.calendar[row][col];

            if (this.endDate && !this.container.find('input[name=daterangepicker_start]').is(":focus")) {
                this.container.find('input[name=daterangepicker_start]').val(date.format(this.locale.format));
            } else if (!this.endDate && !this.container.find('input[name=daterangepicker_end]').is(":focus")) {
                this.container.find('input[name=daterangepicker_end]').val(date.format(this.locale.format));
            }

            //highlight the dates between the start date and the date being hovered as a potential end date
            var leftCalendar = this.leftCalendar;
            var rightCalendar = this.rightCalendar;
            var startDate = this.startDate;
            if (!this.endDate) {
                this.container.find('.calendar tbody td').each(function(index, el) {

                    //skip week numbers, only look at dates
                    if ($(el).hasClass('week')) return;

                    var title = $(el).attr('data-title');
                    var row = title.substr(1, 1);
                    var col = title.substr(3, 1);
                    var cal = $(el).parents('.calendar');
                    var dt = cal.hasClass('left') ? leftCalendar.calendar[row][col] : rightCalendar.calendar[row][col];

                    if ((dt.isAfter(startDate) && dt.isBefore(date)) || dt.isSame(date, 'day')) {
                        $(el).addClass('in-range');
                    } else {
                        $(el).removeClass('in-range');
                    }

                });
            }

        },

        clickDate: function(e) {

            if (!$(e.target).hasClass('available')) return;

            var title = $(e.target).attr('data-title');
            var row = title.substr(1, 1);
            var col = title.substr(3, 1);
            var cal = $(e.target).parents('.calendar');
            var date = cal.hasClass('left') ? this.leftCalendar.calendar[row][col] : this.rightCalendar.calendar[row][col];

            //
            // this function needs to do a few things:
            // * alternate between selecting a start and end date for the range,
            // * if the time picker is enabled, apply the hour/minute/second from the select boxes to the clicked date
            // * if autoapply is enabled, and an end date was chosen, apply the selection
            // * if single date picker mode, and time picker isn't enabled, apply the selection immediately
            // * if one of the inputs above the calendars was focused, cancel that manual input
            //

            if (this.endDate || date.isBefore(this.startDate, 'day')) { //picking start
                if (this.timePicker) {
                    var hour = parseInt(this.container.find('.left .hourselect').val(), 10);
                    if (!this.timePicker24Hour) {
                        var ampm = this.container.find('.left .ampmselect').val();
                        if (ampm === 'PM' && hour < 12)
                            hour += 12;
                        if (ampm === 'AM' && hour === 12)
                            hour = 0;
                    }
                    var minute = parseInt(this.container.find('.left .minuteselect').val(), 10);
                    var second = this.timePickerSeconds ? parseInt(this.container.find('.left .secondselect').val(), 10) : 0;
                    date = date.clone().hour(hour).minute(minute).second(second);
                }
                this.endDate = null;
                this.setStartDate(date.clone());
            } else if (!this.endDate && date.isBefore(this.startDate)) {
                //special case: clicking the same date for start/end,
                //but the time of the end date is before the start date
                this.setEndDate(this.startDate.clone());
            } else { // picking end
                if (this.timePicker) {
                    var hour = parseInt(this.container.find('.right .hourselect').val(), 10);
                    if (!this.timePicker24Hour) {
                        var ampm = this.container.find('.right .ampmselect').val();
                        if (ampm === 'PM' && hour < 12)
                            hour += 12;
                        if (ampm === 'AM' && hour === 12)
                            hour = 0;
                    }
                    var minute = parseInt(this.container.find('.right .minuteselect').val(), 10);
                    var second = this.timePickerSeconds ? parseInt(this.container.find('.right .secondselect').val(), 10) : 0;
                    date = date.clone().hour(hour).minute(minute).second(second);
                }
                this.setEndDate(date.clone());
                if (this.autoApply) {
                  this.calculateChosenLabel();
                  this.clickApply();
                }
            }

            if (this.singleDatePicker) {
                this.setEndDate(this.startDate);
                if (!this.timePicker)
                    this.clickApply();
            }

            this.updateView();

            //This is to cancel the blur event handler if the mouse was in one of the inputs
            e.stopPropagation();

        },

        calculateChosenLabel: function () {
            var customRange = true;
            var i = 0;
            for (var range in this.ranges) {
              if (this.timePicker) {
                    var format = this.timePickerSeconds ? "YYYY-MM-DD hh:mm:ss" : "YYYY-MM-DD hh:mm";
                    //ignore times when comparing dates if time picker seconds is not enabled
                    if (this.startDate.format(format) == this.ranges[range][0].format(format) && this.endDate.format(format) == this.ranges[range][1].format(format)) {
                        customRange = false;
                        this.chosenLabel = this.container.find('.ranges li:eq(' + i + ')').addClass('active').html();
                        break;
                    }
                } else {
                    //ignore times when comparing dates if time picker is not enabled
                    if (this.startDate.format('YYYY-MM-DD') == this.ranges[range][0].format('YYYY-MM-DD') && this.endDate.format('YYYY-MM-DD') == this.ranges[range][1].format('YYYY-MM-DD')) {
                        customRange = false;
                        this.chosenLabel = this.container.find('.ranges li:eq(' + i + ')').addClass('active').html();
                        break;
                    }
                }
                i++;
            }
            if (customRange) {
                if (this.showCustomRangeLabel) {
                    this.chosenLabel = this.container.find('.ranges li:last').addClass('active').html();
                } else {
                    this.chosenLabel = null;
                }
                this.showCalendars();
            }
        },

        clickApply: function(e) {
            this.hide();
            this.element.trigger('apply.daterangepicker', this);
        },

        clickCancel: function(e) {
            this.startDate = this.oldStartDate;
            this.endDate = this.oldEndDate;
            this.hide();
            this.element.trigger('cancel.daterangepicker', this);
        },

        monthOrYearChanged: function(e) {
            var isLeft = $(e.target).closest('.calendar').hasClass('left'),
                leftOrRight = isLeft ? 'left' : 'right',
                cal = this.container.find('.calendar.'+leftOrRight);

            // Month must be Number for new moment versions
            var month = parseInt(cal.find('.monthselect').val(), 10);
            var year = cal.find('.yearselect').val();

            if (!isLeft) {
                if (year < this.startDate.year() || (year == this.startDate.year() && month < this.startDate.month())) {
                    month = this.startDate.month();
                    year = this.startDate.year();
                }
            }

            if (this.minDate) {
                if (year < this.minDate.year() || (year == this.minDate.year() && month < this.minDate.month())) {
                    month = this.minDate.month();
                    year = this.minDate.year();
                }
            }

            if (this.maxDate) {
                if (year > this.maxDate.year() || (year == this.maxDate.year() && month > this.maxDate.month())) {
                    month = this.maxDate.month();
                    year = this.maxDate.year();
                }
            }

            if (isLeft) {
                this.leftCalendar.month.month(month).year(year);
                if (this.linkedCalendars)
                    this.rightCalendar.month = this.leftCalendar.month.clone().add(1, 'month');
            } else {
                this.rightCalendar.month.month(month).year(year);
                if (this.linkedCalendars)
                    this.leftCalendar.month = this.rightCalendar.month.clone().subtract(1, 'month');
            }
            this.updateCalendars();
        },

        timeChanged: function(e) {

            var cal = $(e.target).closest('.calendar'),
                isLeft = cal.hasClass('left');

            var hour = parseInt(cal.find('.hourselect').val(), 10);
            var minute = parseInt(cal.find('.minuteselect').val(), 10);
            var second = this.timePickerSeconds ? parseInt(cal.find('.secondselect').val(), 10) : 0;

            if (!this.timePicker24Hour) {
                var ampm = cal.find('.ampmselect').val();
                if (ampm === 'PM' && hour < 12)
                    hour += 12;
                if (ampm === 'AM' && hour === 12)
                    hour = 0;
            }

            if (isLeft) {
                var start = this.startDate.clone();
                start.hour(hour);
                start.minute(minute);
                start.second(second);
                this.setStartDate(start);
                if (this.singleDatePicker) {
                    this.endDate = this.startDate.clone();
                } else if (this.endDate && this.endDate.format('YYYY-MM-DD') == start.format('YYYY-MM-DD') && this.endDate.isBefore(start)) {
                    this.setEndDate(start.clone());
                }
            } else if (this.endDate) {
                var end = this.endDate.clone();
                end.hour(hour);
                end.minute(minute);
                end.second(second);
                this.setEndDate(end);
            }

            //update the calendars so all clickable dates reflect the new time component
            this.updateCalendars();

            //update the form inputs above the calendars with the new time
            this.updateFormInputs();

            //re-render the time pickers because changing one selection can affect what's enabled in another
            this.renderTimePicker('left');
            this.renderTimePicker('right');

        },

        formInputsChanged: function(e) {
            var isRight = $(e.target).closest('.calendar').hasClass('right');
            var start = moment(this.container.find('input[name="daterangepicker_start"]').val(), this.locale.format);
            var end = moment(this.container.find('input[name="daterangepicker_end"]').val(), this.locale.format);

            if (start.isValid() && end.isValid()) {

                if (isRight && end.isBefore(start))
                    start = end.clone();

                this.setStartDate(start);
                this.setEndDate(end);

                if (isRight) {
                    this.container.find('input[name="daterangepicker_start"]').val(this.startDate.format(this.locale.format));
                } else {
                    this.container.find('input[name="daterangepicker_end"]').val(this.endDate.format(this.locale.format));
                }

            }

            this.updateView();
        },

        formInputsFocused: function(e) {

            // Highlight the focused input
            this.container.find('input[name="daterangepicker_start"], input[name="daterangepicker_end"]').removeClass('active');
            $(e.target).addClass('active');

            // Set the state such that if the user goes back to using a mouse, 
            // the calendars are aware we're selecting the end of the range, not
            // the start. This allows someone to edit the end of a date range without
            // re-selecting the beginning, by clicking on the end date input then
            // using the calendar.
            var isRight = $(e.target).closest('.calendar').hasClass('right');
            if (isRight) {
                this.endDate = null;
                this.setStartDate(this.startDate.clone());
                this.updateView();
            }

        },

        formInputsBlurred: function(e) {

            // this function has one purpose right now: if you tab from the first
            // text input to the second in the UI, the endDate is nulled so that
            // you can click another, but if you tab out without clicking anything
            // or changing the input value, the old endDate should be retained

            if (!this.endDate) {
                var val = this.container.find('input[name="daterangepicker_end"]').val();
                var end = moment(val, this.locale.format);
                if (end.isValid()) {
                    this.setEndDate(end);
                    this.updateView();
                }
            }

        },

        formInputsKeydown: function(e) {
            // This function ensures that if the 'enter' key was pressed in the input, then the calendars
            // are updated with the startDate and endDate.
            // This behaviour is automatic in Chrome/Firefox/Edge but not in IE 11 hence why this exists.
            // Other browsers and versions of IE are untested and the behaviour is unknown.
            if (e.keyCode === 13) {
                // Prevent the calendar from being updated twice on Chrome/Firefox/Edge
                e.preventDefault(); 
                this.formInputsChanged(e);
            }
        },


        elementChanged: function() {
            if (!this.element.is('input')) return;
            if (!this.element.val().length) return;

            var dateString = this.element.val().split(this.locale.separator),
                start = null,
                end = null;

            if (dateString.length === 2) {
                start = moment(dateString[0], this.locale.format);
                end = moment(dateString[1], this.locale.format);
            }

            if (this.singleDatePicker || start === null || end === null) {
                start = moment(this.element.val(), this.locale.format);
                end = start;
            }

            if (!start.isValid() || !end.isValid()) return;

            this.setStartDate(start);
            this.setEndDate(end);
            this.updateView();
        },

        keydown: function(e) {
            //hide on tab or enter
            if ((e.keyCode === 9) || (e.keyCode === 13)) {
                this.hide();
            }

            //hide on esc and prevent propagation
            if (e.keyCode === 27) {
                e.preventDefault();
                e.stopPropagation();

                this.hide();
            }
        },

        updateElement: function() {
            if (this.element.is('input') && !this.singleDatePicker && this.autoUpdateInput) {
                this.element.val(this.startDate.format(this.locale.format) + this.locale.separator + this.endDate.format(this.locale.format));
                this.element.trigger('change');
            } else if (this.element.is('input') && this.autoUpdateInput) {
                this.element.val(this.startDate.format(this.locale.format));
                this.element.trigger('change');
            }
        },

        remove: function() {
            this.container.remove();
            this.element.off('.daterangepicker');
            this.element.removeData();
        }

    };

    $.fn.daterangepicker = function(options, callback) {
        var implementOptions = $.extend(true, {}, $.fn.daterangepicker.defaultOptions, options);
        this.each(function() {
            var el = $(this);
            if (el.data('daterangepicker'))
                el.data('daterangepicker').remove();
            el.data('daterangepicker', new DateRangePicker(el, implementOptions, callback));
        });
        return this;
    };

    return DateRangePicker;

}));

/*
     _ _      _       _
 ___| (_) ___| | __  (_)___
/ __| | |/ __| |/ /  | / __|
\__ \ | | (__|   < _ | \__ \
|___/_|_|\___|_|\_(_)/ |___/
                   |__/

 Version: 1.8.0
  Author: Ken Wheeler
 Website: http://kenwheeler.github.io
    Docs: http://kenwheeler.github.io/slick
    Repo: http://github.com/kenwheeler/slick
  Issues: http://github.com/kenwheeler/slick/issues

 */
/* global window, document, define, jQuery, setInterval, clearInterval */
;(function(factory) {
    'use strict';
    if (typeof define === 'function' && define.amd) {
        define(['jquery'], factory);
    } else if (typeof exports !== 'undefined') {
        module.exports = factory(require('jquery'));
    } else {
        factory(jQuery);
    }

}(function($) {
    'use strict';
    var Slick = window.Slick || {};

    Slick = (function() {

        var instanceUid = 0;

        function Slick(element, settings) {

            var _ = this, dataSettings;

            _.defaults = {
                accessibility: true,
                adaptiveHeight: false,
                appendArrows: $(element),
                appendDots: $(element),
                arrows: true,
                asNavFor: null,
                prevArrow: '<button class="slick-prev" aria-label="Previous" type="button">Previous</button>',
                nextArrow: '<button class="slick-next" aria-label="Next" type="button">Next</button>',
                autoplay: false,
                autoplaySpeed: 3000,
                centerMode: false,
                centerPadding: '50px',
                cssEase: 'ease',
                customPaging: function(slider, i) {
                    return $('<button type="button" />').text(i + 1);
                },
                dots: false,
                dotsClass: 'slick-dots',
                draggable: true,
                easing: 'linear',
                edgeFriction: 0.35,
                fade: false,
                focusOnSelect: false,
                focusOnChange: false,
                infinite: true,
                initialSlide: 0,
                lazyLoad: 'ondemand',
                mobileFirst: false,
                pauseOnHover: true,
                pauseOnFocus: true,
                pauseOnDotsHover: false,
                respondTo: 'window',
                responsive: null,
                rows: 1,
                rtl: false,
                slide: '',
                slidesPerRow: 1,
                slidesToShow: 1,
                slidesToScroll: 1,
                speed: 500,
                swipe: true,
                swipeToSlide: false,
                touchMove: true,
                touchThreshold: 5,
                useCSS: true,
                useTransform: true,
                variableWidth: false,
                vertical: false,
                verticalSwiping: false,
                waitForAnimate: true,
                zIndex: 1000
            };

            _.initials = {
                animating: false,
                dragging: false,
                autoPlayTimer: null,
                currentDirection: 0,
                currentLeft: null,
                currentSlide: 0,
                direction: 1,
                $dots: null,
                listWidth: null,
                listHeight: null,
                loadIndex: 0,
                $nextArrow: null,
                $prevArrow: null,
                scrolling: false,
                slideCount: null,
                slideWidth: null,
                $slideTrack: null,
                $slides: null,
                sliding: false,
                slideOffset: 0,
                swipeLeft: null,
                swiping: false,
                $list: null,
                touchObject: {},
                transformsEnabled: false,
                unslicked: false
            };

            $.extend(_, _.initials);

            _.activeBreakpoint = null;
            _.animType = null;
            _.animProp = null;
            _.breakpoints = [];
            _.breakpointSettings = [];
            _.cssTransitions = false;
            _.focussed = false;
            _.interrupted = false;
            _.hidden = 'hidden';
            _.paused = true;
            _.positionProp = null;
            _.respondTo = null;
            _.rowCount = 1;
            _.shouldClick = true;
            _.$slider = $(element);
            _.$slidesCache = null;
            _.transformType = null;
            _.transitionType = null;
            _.visibilityChange = 'visibilitychange';
            _.windowWidth = 0;
            _.windowTimer = null;

            dataSettings = $(element).data('slick') || {};

            _.options = $.extend({}, _.defaults, settings, dataSettings);

            _.currentSlide = _.options.initialSlide;

            _.originalSettings = _.options;

            if (typeof document.mozHidden !== 'undefined') {
                _.hidden = 'mozHidden';
                _.visibilityChange = 'mozvisibilitychange';
            } else if (typeof document.webkitHidden !== 'undefined') {
                _.hidden = 'webkitHidden';
                _.visibilityChange = 'webkitvisibilitychange';
            }

            _.autoPlay = $.proxy(_.autoPlay, _);
            _.autoPlayClear = $.proxy(_.autoPlayClear, _);
            _.autoPlayIterator = $.proxy(_.autoPlayIterator, _);
            _.changeSlide = $.proxy(_.changeSlide, _);
            _.clickHandler = $.proxy(_.clickHandler, _);
            _.selectHandler = $.proxy(_.selectHandler, _);
            _.setPosition = $.proxy(_.setPosition, _);
            _.swipeHandler = $.proxy(_.swipeHandler, _);
            _.dragHandler = $.proxy(_.dragHandler, _);
            _.keyHandler = $.proxy(_.keyHandler, _);

            _.instanceUid = instanceUid++;

            // A simple way to check for HTML strings
            // Strict HTML recognition (must start with <)
            // Extracted from jQuery v1.11 source
            _.htmlExpr = /^(?:\s*(<[\w\W]+>)[^>]*)$/;


            _.registerBreakpoints();
            _.init(true);

        }

        return Slick;

    }());

    Slick.prototype.activateADA = function() {
        var _ = this;

        _.$slideTrack.find('.slick-active').attr({
            'aria-hidden': 'false'
        }).find('a, input, button, select').attr({
            'tabindex': '0'
        });

    };

    Slick.prototype.addSlide = Slick.prototype.slickAdd = function(markup, index, addBefore) {

        var _ = this;

        if (typeof(index) === 'boolean') {
            addBefore = index;
            index = null;
        } else if (index < 0 || (index >= _.slideCount)) {
            return false;
        }

        _.unload();

        if (typeof(index) === 'number') {
            if (index === 0 && _.$slides.length === 0) {
                $(markup).appendTo(_.$slideTrack);
            } else if (addBefore) {
                $(markup).insertBefore(_.$slides.eq(index));
            } else {
                $(markup).insertAfter(_.$slides.eq(index));
            }
        } else {
            if (addBefore === true) {
                $(markup).prependTo(_.$slideTrack);
            } else {
                $(markup).appendTo(_.$slideTrack);
            }
        }

        _.$slides = _.$slideTrack.children(this.options.slide);

        _.$slideTrack.children(this.options.slide).detach();

        _.$slideTrack.append(_.$slides);

        _.$slides.each(function(index, element) {
            $(element).attr('data-slick-index', index);
        });

        _.$slidesCache = _.$slides;

        _.reinit();

    };

    Slick.prototype.animateHeight = function() {
        var _ = this;
        if (_.options.slidesToShow === 1 && _.options.adaptiveHeight === true && _.options.vertical === false) {
            var targetHeight = _.$slides.eq(_.currentSlide).outerHeight(true);
            _.$list.animate({
                height: targetHeight
            }, _.options.speed);
        }
    };

    Slick.prototype.animateSlide = function(targetLeft, callback) {

        var animProps = {},
            _ = this;

        _.animateHeight();

        if (_.options.rtl === true && _.options.vertical === false) {
            targetLeft = -targetLeft;
        }
        if (_.transformsEnabled === false) {
            if (_.options.vertical === false) {
                _.$slideTrack.animate({
                    left: targetLeft
                }, _.options.speed, _.options.easing, callback);
            } else {
                _.$slideTrack.animate({
                    top: targetLeft
                }, _.options.speed, _.options.easing, callback);
            }

        } else {

            if (_.cssTransitions === false) {
                if (_.options.rtl === true) {
                    _.currentLeft = -(_.currentLeft);
                }
                $({
                    animStart: _.currentLeft
                }).animate({
                    animStart: targetLeft
                }, {
                    duration: _.options.speed,
                    easing: _.options.easing,
                    step: function(now) {
                        now = Math.ceil(now);
                        if (_.options.vertical === false) {
                            animProps[_.animType] = 'translate(' +
                                now + 'px, 0px)';
                            _.$slideTrack.css(animProps);
                        } else {
                            animProps[_.animType] = 'translate(0px,' +
                                now + 'px)';
                            _.$slideTrack.css(animProps);
                        }
                    },
                    complete: function() {
                        if (callback) {
                            callback.call();
                        }
                    }
                });

            } else {

                _.applyTransition();
                targetLeft = Math.ceil(targetLeft);

                if (_.options.vertical === false) {
                    animProps[_.animType] = 'translate3d(' + targetLeft + 'px, 0px, 0px)';
                } else {
                    animProps[_.animType] = 'translate3d(0px,' + targetLeft + 'px, 0px)';
                }
                _.$slideTrack.css(animProps);

                if (callback) {
                    setTimeout(function() {

                        _.disableTransition();

                        callback.call();
                    }, _.options.speed);
                }

            }

        }

    };

    Slick.prototype.getNavTarget = function() {

        var _ = this,
            asNavFor = _.options.asNavFor;

        if ( asNavFor && asNavFor !== null ) {
            asNavFor = $(asNavFor).not(_.$slider);
        }

        return asNavFor;

    };

    Slick.prototype.asNavFor = function(index) {

        var _ = this,
            asNavFor = _.getNavTarget();

        if ( asNavFor !== null && typeof asNavFor === 'object' ) {
            asNavFor.each(function() {
                var target = $(this).slick('getSlick');
                if(!target.unslicked) {
                    target.slideHandler(index, true);
                }
            });
        }

    };

    Slick.prototype.applyTransition = function(slide) {

        var _ = this,
            transition = {};

        if (_.options.fade === false) {
            transition[_.transitionType] = _.transformType + ' ' + _.options.speed + 'ms ' + _.options.cssEase;
        } else {
            transition[_.transitionType] = 'opacity ' + _.options.speed + 'ms ' + _.options.cssEase;
        }

        if (_.options.fade === false) {
            _.$slideTrack.css(transition);
        } else {
            _.$slides.eq(slide).css(transition);
        }

    };

    Slick.prototype.autoPlay = function() {

        var _ = this;

        _.autoPlayClear();

        if ( _.slideCount > _.options.slidesToShow ) {
            _.autoPlayTimer = setInterval( _.autoPlayIterator, _.options.autoplaySpeed );
        }

    };

    Slick.prototype.autoPlayClear = function() {

        var _ = this;

        if (_.autoPlayTimer) {
            clearInterval(_.autoPlayTimer);
        }

    };

    Slick.prototype.autoPlayIterator = function() {

        var _ = this,
            slideTo = _.currentSlide + _.options.slidesToScroll;

        if ( !_.paused && !_.interrupted && !_.focussed ) {

            if ( _.options.infinite === false ) {

                if ( _.direction === 1 && ( _.currentSlide + 1 ) === ( _.slideCount - 1 )) {
                    _.direction = 0;
                }

                else if ( _.direction === 0 ) {

                    slideTo = _.currentSlide - _.options.slidesToScroll;

                    if ( _.currentSlide - 1 === 0 ) {
                        _.direction = 1;
                    }

                }

            }

            _.slideHandler( slideTo );

        }

    };

    Slick.prototype.buildArrows = function() {

        var _ = this;

        if (_.options.arrows === true ) {

            _.$prevArrow = $(_.options.prevArrow).addClass('slick-arrow');
            _.$nextArrow = $(_.options.nextArrow).addClass('slick-arrow');

            if( _.slideCount > _.options.slidesToShow ) {

                _.$prevArrow.removeClass('slick-hidden').removeAttr('aria-hidden tabindex');
                _.$nextArrow.removeClass('slick-hidden').removeAttr('aria-hidden tabindex');

                if (_.htmlExpr.test(_.options.prevArrow)) {
                    _.$prevArrow.prependTo(_.options.appendArrows);
                }

                if (_.htmlExpr.test(_.options.nextArrow)) {
                    _.$nextArrow.appendTo(_.options.appendArrows);
                }

                if (_.options.infinite !== true) {
                    _.$prevArrow
                        .addClass('slick-disabled')
                        .attr('aria-disabled', 'true');
                }

            } else {

                _.$prevArrow.add( _.$nextArrow )

                    .addClass('slick-hidden')
                    .attr({
                        'aria-disabled': 'true',
                        'tabindex': '-1'
                    });

            }

        }

    };

    Slick.prototype.buildDots = function() {

        var _ = this,
            i, dot;

        if (_.options.dots === true && _.slideCount > _.options.slidesToShow) {

            _.$slider.addClass('slick-dotted');

            dot = $('<ul />').addClass(_.options.dotsClass);

            for (i = 0; i <= _.getDotCount(); i += 1) {
                dot.append($('<li />').append(_.options.customPaging.call(this, _, i)));
            }

            _.$dots = dot.appendTo(_.options.appendDots);

            _.$dots.find('li').first().addClass('slick-active');

        }

    };

    Slick.prototype.buildOut = function() {

        var _ = this;

        _.$slides =
            _.$slider
                .children( _.options.slide + ':not(.slick-cloned)')
                .addClass('slick-slide');

        _.slideCount = _.$slides.length;

        _.$slides.each(function(index, element) {
            $(element)
                .attr('data-slick-index', index)
                .data('originalStyling', $(element).attr('style') || '');
        });

        _.$slider.addClass('slick-slider');

        _.$slideTrack = (_.slideCount === 0) ?
            $('<div class="slick-track"/>').appendTo(_.$slider) :
            _.$slides.wrapAll('<div class="slick-track"/>').parent();

        _.$list = _.$slideTrack.wrap(
            '<div class="slick-list"/>').parent();
        _.$slideTrack.css('opacity', 0);

        if (_.options.centerMode === true || _.options.swipeToSlide === true) {
            _.options.slidesToScroll = 1;
        }

        $('img[data-lazy]', _.$slider).not('[src]').addClass('slick-loading');

        _.setupInfinite();

        _.buildArrows();

        _.buildDots();

        _.updateDots();


        _.setSlideClasses(typeof _.currentSlide === 'number' ? _.currentSlide : 0);

        if (_.options.draggable === true) {
            _.$list.addClass('draggable');
        }

    };

    Slick.prototype.buildRows = function() {

        var _ = this, a, b, c, newSlides, numOfSlides, originalSlides,slidesPerSection;

        newSlides = document.createDocumentFragment();
        originalSlides = _.$slider.children();

        if(_.options.rows > 0) {

            slidesPerSection = _.options.slidesPerRow * _.options.rows;
            numOfSlides = Math.ceil(
                originalSlides.length / slidesPerSection
            );

            for(a = 0; a < numOfSlides; a++){
                var slide = document.createElement('div');
                for(b = 0; b < _.options.rows; b++) {
                    var row = document.createElement('div');
                    for(c = 0; c < _.options.slidesPerRow; c++) {
                        var target = (a * slidesPerSection + ((b * _.options.slidesPerRow) + c));
                        if (originalSlides.get(target)) {
                            row.appendChild(originalSlides.get(target));
                        }
                    }
                    slide.appendChild(row);
                }
                newSlides.appendChild(slide);
            }

            _.$slider.empty().append(newSlides);
            _.$slider.children().children().children()
                .css({
                    'width':(100 / _.options.slidesPerRow) + '%',
                    'display': 'inline-block'
                });

        }

    };

    Slick.prototype.checkResponsive = function(initial, forceUpdate) {

        var _ = this,
            breakpoint, targetBreakpoint, respondToWidth, triggerBreakpoint = false;
        var sliderWidth = _.$slider.width();
        var windowWidth = window.innerWidth || $(window).width();

        if (_.respondTo === 'window') {
            respondToWidth = windowWidth;
        } else if (_.respondTo === 'slider') {
            respondToWidth = sliderWidth;
        } else if (_.respondTo === 'min') {
            respondToWidth = Math.min(windowWidth, sliderWidth);
        }

        if ( _.options.responsive &&
            _.options.responsive.length &&
            _.options.responsive !== null) {

            targetBreakpoint = null;

            for (breakpoint in _.breakpoints) {
                if (_.breakpoints.hasOwnProperty(breakpoint)) {
                    if (_.originalSettings.mobileFirst === false) {
                        if (respondToWidth < _.breakpoints[breakpoint]) {
                            targetBreakpoint = _.breakpoints[breakpoint];
                        }
                    } else {
                        if (respondToWidth > _.breakpoints[breakpoint]) {
                            targetBreakpoint = _.breakpoints[breakpoint];
                        }
                    }
                }
            }

            if (targetBreakpoint !== null) {
                if (_.activeBreakpoint !== null) {
                    if (targetBreakpoint !== _.activeBreakpoint || forceUpdate) {
                        _.activeBreakpoint =
                            targetBreakpoint;
                        if (_.breakpointSettings[targetBreakpoint] === 'unslick') {
                            _.unslick(targetBreakpoint);
                        } else {
                            _.options = $.extend({}, _.originalSettings,
                                _.breakpointSettings[
                                    targetBreakpoint]);
                            if (initial === true) {
                                _.currentSlide = _.options.initialSlide;
                            }
                            _.refresh(initial);
                        }
                        triggerBreakpoint = targetBreakpoint;
                    }
                } else {
                    _.activeBreakpoint = targetBreakpoint;
                    if (_.breakpointSettings[targetBreakpoint] === 'unslick') {
                        _.unslick(targetBreakpoint);
                    } else {
                        _.options = $.extend({}, _.originalSettings,
                            _.breakpointSettings[
                                targetBreakpoint]);
                        if (initial === true) {
                            _.currentSlide = _.options.initialSlide;
                        }
                        _.refresh(initial);
                    }
                    triggerBreakpoint = targetBreakpoint;
                }
            } else {
                if (_.activeBreakpoint !== null) {
                    _.activeBreakpoint = null;
                    _.options = _.originalSettings;
                    if (initial === true) {
                        _.currentSlide = _.options.initialSlide;
                    }
                    _.refresh(initial);
                    triggerBreakpoint = targetBreakpoint;
                }
            }

            // only trigger breakpoints during an actual break. not on initialize.
            if( !initial && triggerBreakpoint !== false ) {
                _.$slider.trigger('breakpoint', [_, triggerBreakpoint]);
            }
        }

    };

    Slick.prototype.changeSlide = function(event, dontAnimate) {

        var _ = this,
            $target = $(event.currentTarget),
            indexOffset, slideOffset, unevenOffset;

        // If target is a link, prevent default action.
        if($target.is('a')) {
            event.preventDefault();
        }

        // If target is not the <li> element (ie: a child), find the <li>.
        if(!$target.is('li')) {
            $target = $target.closest('li');
        }

        unevenOffset = (_.slideCount % _.options.slidesToScroll !== 0);
        indexOffset = unevenOffset ? 0 : (_.slideCount - _.currentSlide) % _.options.slidesToScroll;

        switch (event.data.message) {

            case 'previous':
                slideOffset = indexOffset === 0 ? _.options.slidesToScroll : _.options.slidesToShow - indexOffset;
                if (_.slideCount > _.options.slidesToShow) {
                    _.slideHandler(_.currentSlide - slideOffset, false, dontAnimate);
                }
                break;

            case 'next':
                slideOffset = indexOffset === 0 ? _.options.slidesToScroll : indexOffset;
                if (_.slideCount > _.options.slidesToShow) {
                    _.slideHandler(_.currentSlide + slideOffset, false, dontAnimate);
                }
                break;

            case 'index':
                var index = event.data.index === 0 ? 0 :
                    event.data.index || $target.index() * _.options.slidesToScroll;

                _.slideHandler(_.checkNavigable(index), false, dontAnimate);
                $target.children().trigger('focus');
                break;

            default:
                return;
        }

    };

    Slick.prototype.checkNavigable = function(index) {

        var _ = this,
            navigables, prevNavigable;

        navigables = _.getNavigableIndexes();
        prevNavigable = 0;
        if (index > navigables[navigables.length - 1]) {
            index = navigables[navigables.length - 1];
        } else {
            for (var n in navigables) {
                if (index < navigables[n]) {
                    index = prevNavigable;
                    break;
                }
                prevNavigable = navigables[n];
            }
        }

        return index;
    };

    Slick.prototype.cleanUpEvents = function() {

        var _ = this;

        if (_.options.dots && _.$dots !== null) {

            $('li', _.$dots)
                .off('click.slick', _.changeSlide)
                .off('mouseenter.slick', $.proxy(_.interrupt, _, true))
                .off('mouseleave.slick', $.proxy(_.interrupt, _, false));

            if (_.options.accessibility === true) {
                _.$dots.off('keydown.slick', _.keyHandler);
            }
        }

        _.$slider.off('focus.slick blur.slick');

        if (_.options.arrows === true && _.slideCount > _.options.slidesToShow) {
            _.$prevArrow && _.$prevArrow.off('click.slick', _.changeSlide);
            _.$nextArrow && _.$nextArrow.off('click.slick', _.changeSlide);

            if (_.options.accessibility === true) {
                _.$prevArrow && _.$prevArrow.off('keydown.slick', _.keyHandler);
                _.$nextArrow && _.$nextArrow.off('keydown.slick', _.keyHandler);
            }
        }

        _.$list.off('touchstart.slick mousedown.slick', _.swipeHandler);
        _.$list.off('touchmove.slick mousemove.slick', _.swipeHandler);
        _.$list.off('touchend.slick mouseup.slick', _.swipeHandler);
        _.$list.off('touchcancel.slick mouseleave.slick', _.swipeHandler);

        _.$list.off('click.slick', _.clickHandler);

        $(document).off(_.visibilityChange, _.visibility);

        _.cleanUpSlideEvents();

        if (_.options.accessibility === true) {
            _.$list.off('keydown.slick', _.keyHandler);
        }

        if (_.options.focusOnSelect === true) {
            $(_.$slideTrack).children().off('click.slick', _.selectHandler);
        }

        $(window).off('orientationchange.slick.slick-' + _.instanceUid, _.orientationChange);

        $(window).off('resize.slick.slick-' + _.instanceUid, _.resize);

        $('[draggable!=true]', _.$slideTrack).off('dragstart', _.preventDefault);

        $(window).off('load.slick.slick-' + _.instanceUid, _.setPosition);

    };

    Slick.prototype.cleanUpSlideEvents = function() {

        var _ = this;

        _.$list.off('mouseenter.slick', $.proxy(_.interrupt, _, true));
        _.$list.off('mouseleave.slick', $.proxy(_.interrupt, _, false));

    };

    Slick.prototype.cleanUpRows = function() {

        var _ = this, originalSlides;

        if(_.options.rows > 0) {
            originalSlides = _.$slides.children().children();
            originalSlides.removeAttr('style');
            _.$slider.empty().append(originalSlides);
        }

    };

    Slick.prototype.clickHandler = function(event) {

        var _ = this;

        if (_.shouldClick === false) {
            event.stopImmediatePropagation();
            event.stopPropagation();
            event.preventDefault();
        }

    };

    Slick.prototype.destroy = function(refresh) {

        var _ = this;

        _.autoPlayClear();

        _.touchObject = {};

        _.cleanUpEvents();

        $('.slick-cloned', _.$slider).detach();

        if (_.$dots) {
            _.$dots.remove();
        }

        if ( _.$prevArrow && _.$prevArrow.length ) {

            _.$prevArrow
                .removeClass('slick-disabled slick-arrow slick-hidden')
                .removeAttr('aria-hidden aria-disabled tabindex')
                .css('display','');

            if ( _.htmlExpr.test( _.options.prevArrow )) {
                _.$prevArrow.remove();
            }
        }

        if ( _.$nextArrow && _.$nextArrow.length ) {

            _.$nextArrow
                .removeClass('slick-disabled slick-arrow slick-hidden')
                .removeAttr('aria-hidden aria-disabled tabindex')
                .css('display','');

            if ( _.htmlExpr.test( _.options.nextArrow )) {
                _.$nextArrow.remove();
            }
        }


        if (_.$slides) {

            _.$slides
                .removeClass('slick-slide slick-active slick-center slick-visible slick-current')
                .removeAttr('aria-hidden')
                .removeAttr('data-slick-index')
                .each(function(){
                    $(this).attr('style', $(this).data('originalStyling'));
                });

            _.$slideTrack.children(this.options.slide).detach();

            _.$slideTrack.detach();

            _.$list.detach();

            _.$slider.append(_.$slides);
        }

        _.cleanUpRows();

        _.$slider.removeClass('slick-slider');
        _.$slider.removeClass('slick-initialized');
        _.$slider.removeClass('slick-dotted');

        _.unslicked = true;

        if(!refresh) {
            _.$slider.trigger('destroy', [_]);
        }

    };

    Slick.prototype.disableTransition = function(slide) {

        var _ = this,
            transition = {};

        transition[_.transitionType] = '';

        if (_.options.fade === false) {
            _.$slideTrack.css(transition);
        } else {
            _.$slides.eq(slide).css(transition);
        }

    };

    Slick.prototype.fadeSlide = function(slideIndex, callback) {

        var _ = this;

        if (_.cssTransitions === false) {

            _.$slides.eq(slideIndex).css({
                zIndex: _.options.zIndex
            });

            _.$slides.eq(slideIndex).animate({
                opacity: 1
            }, _.options.speed, _.options.easing, callback);

        } else {

            _.applyTransition(slideIndex);

            _.$slides.eq(slideIndex).css({
                opacity: 1,
                zIndex: _.options.zIndex
            });

            if (callback) {
                setTimeout(function() {

                    _.disableTransition(slideIndex);

                    callback.call();
                }, _.options.speed);
            }

        }

    };

    Slick.prototype.fadeSlideOut = function(slideIndex) {

        var _ = this;

        if (_.cssTransitions === false) {

            _.$slides.eq(slideIndex).animate({
                opacity: 0,
                zIndex: _.options.zIndex - 2
            }, _.options.speed, _.options.easing);

        } else {

            _.applyTransition(slideIndex);

            _.$slides.eq(slideIndex).css({
                opacity: 0,
                zIndex: _.options.zIndex - 2
            });

        }

    };

    Slick.prototype.filterSlides = Slick.prototype.slickFilter = function(filter) {

        var _ = this;

        if (filter !== null) {

            _.$slidesCache = _.$slides;

            _.unload();

            _.$slideTrack.children(this.options.slide).detach();

            _.$slidesCache.filter(filter).appendTo(_.$slideTrack);

            _.reinit();

        }

    };

    Slick.prototype.focusHandler = function() {

        var _ = this;

        _.$slider
            .off('focus.slick blur.slick')
            .on('focus.slick blur.slick', '*', function(event) {

            event.stopImmediatePropagation();
            var $sf = $(this);

            setTimeout(function() {

                if( _.options.pauseOnFocus ) {
                    _.focussed = $sf.is(':focus');
                    _.autoPlay();
                }

            }, 0);

        });
    };

    Slick.prototype.getCurrent = Slick.prototype.slickCurrentSlide = function() {

        var _ = this;
        return _.currentSlide;

    };

    Slick.prototype.getDotCount = function() {

        var _ = this;

        var breakPoint = 0;
        var counter = 0;
        var pagerQty = 0;

        if (_.options.infinite === true) {
            if (_.slideCount <= _.options.slidesToShow) {
                 ++pagerQty;
            } else {
                while (breakPoint < _.slideCount) {
                    ++pagerQty;
                    breakPoint = counter + _.options.slidesToScroll;
                    counter += _.options.slidesToScroll <= _.options.slidesToShow ? _.options.slidesToScroll : _.options.slidesToShow;
                }
            }
        } else if (_.options.centerMode === true) {
            pagerQty = _.slideCount;
        } else if(!_.options.asNavFor) {
            pagerQty = 1 + Math.ceil((_.slideCount - _.options.slidesToShow) / _.options.slidesToScroll);
        }else {
            while (breakPoint < _.slideCount) {
                ++pagerQty;
                breakPoint = counter + _.options.slidesToScroll;
                counter += _.options.slidesToScroll <= _.options.slidesToShow ? _.options.slidesToScroll : _.options.slidesToShow;
            }
        }

        return pagerQty - 1;

    };

    Slick.prototype.getLeft = function(slideIndex) {

        var _ = this,
            targetLeft,
            verticalHeight,
            verticalOffset = 0,
            targetSlide,
            coef;

        _.slideOffset = 0;
        verticalHeight = _.$slides.first().outerHeight(true);

        if (_.options.infinite === true) {
            if (_.slideCount > _.options.slidesToShow) {
                _.slideOffset = (_.slideWidth * _.options.slidesToShow) * -1;
                coef = -1

                if (_.options.vertical === true && _.options.centerMode === true) {
                    if (_.options.slidesToShow === 2) {
                        coef = -1.5;
                    } else if (_.options.slidesToShow === 1) {
                        coef = -2
                    }
                }
                verticalOffset = (verticalHeight * _.options.slidesToShow) * coef;
            }
            if (_.slideCount % _.options.slidesToScroll !== 0) {
                if (slideIndex + _.options.slidesToScroll > _.slideCount && _.slideCount > _.options.slidesToShow) {
                    if (slideIndex > _.slideCount) {
                        _.slideOffset = ((_.options.slidesToShow - (slideIndex - _.slideCount)) * _.slideWidth) * -1;
                        verticalOffset = ((_.options.slidesToShow - (slideIndex - _.slideCount)) * verticalHeight) * -1;
                    } else {
                        _.slideOffset = ((_.slideCount % _.options.slidesToScroll) * _.slideWidth) * -1;
                        verticalOffset = ((_.slideCount % _.options.slidesToScroll) * verticalHeight) * -1;
                    }
                }
            }
        } else {
            if (slideIndex + _.options.slidesToShow > _.slideCount) {
                _.slideOffset = ((slideIndex + _.options.slidesToShow) - _.slideCount) * _.slideWidth;
                verticalOffset = ((slideIndex + _.options.slidesToShow) - _.slideCount) * verticalHeight;
            }
        }

        if (_.slideCount <= _.options.slidesToShow) {
            _.slideOffset = 0;
            verticalOffset = 0;
        }

        if (_.options.centerMode === true && _.slideCount <= _.options.slidesToShow) {
            _.slideOffset = ((_.slideWidth * Math.floor(_.options.slidesToShow)) / 2) - ((_.slideWidth * _.slideCount) / 2);
        } else if (_.options.centerMode === true && _.options.infinite === true) {
            _.slideOffset += _.slideWidth * Math.floor(_.options.slidesToShow / 2) - _.slideWidth;
        } else if (_.options.centerMode === true) {
            _.slideOffset = 0;
            _.slideOffset += _.slideWidth * Math.floor(_.options.slidesToShow / 2);
        }

        if (_.options.vertical === false) {
            targetLeft = ((slideIndex * _.slideWidth) * -1) + _.slideOffset;
        } else {
            targetLeft = ((slideIndex * verticalHeight) * -1) + verticalOffset;
        }

        if (_.options.variableWidth === true) {

            if (_.slideCount <= _.options.slidesToShow || _.options.infinite === false) {
                targetSlide = _.$slideTrack.children('.slick-slide').eq(slideIndex);
            } else {
                targetSlide = _.$slideTrack.children('.slick-slide').eq(slideIndex + _.options.slidesToShow);
            }

            if (_.options.rtl === true) {
                if (targetSlide[0]) {
                    targetLeft = (_.$slideTrack.width() - targetSlide[0].offsetLeft - targetSlide.width()) * -1;
                } else {
                    targetLeft =  0;
                }
            } else {
                targetLeft = targetSlide[0] ? targetSlide[0].offsetLeft * -1 : 0;
            }

            if (_.options.centerMode === true) {
                if (_.slideCount <= _.options.slidesToShow || _.options.infinite === false) {
                    targetSlide = _.$slideTrack.children('.slick-slide').eq(slideIndex);
                } else {
                    targetSlide = _.$slideTrack.children('.slick-slide').eq(slideIndex + _.options.slidesToShow + 1);
                }

                if (_.options.rtl === true) {
                    if (targetSlide[0]) {
                        targetLeft = (_.$slideTrack.width() - targetSlide[0].offsetLeft - targetSlide.width()) * -1;
                    } else {
                        targetLeft =  0;
                    }
                } else {
                    targetLeft = targetSlide[0] ? targetSlide[0].offsetLeft * -1 : 0;
                }

                targetLeft += (_.$list.width() - targetSlide.outerWidth()) / 2;
            }
        }

        return targetLeft;

    };

    Slick.prototype.getOption = Slick.prototype.slickGetOption = function(option) {

        var _ = this;

        return _.options[option];

    };

    Slick.prototype.getNavigableIndexes = function() {

        var _ = this,
            breakPoint = 0,
            counter = 0,
            indexes = [],
            max;

        if (_.options.infinite === false) {
            max = _.slideCount;
        } else {
            breakPoint = _.options.slidesToScroll * -1;
            counter = _.options.slidesToScroll * -1;
            max = _.slideCount * 2;
        }

        while (breakPoint < max) {
            indexes.push(breakPoint);
            breakPoint = counter + _.options.slidesToScroll;
            counter += _.options.slidesToScroll <= _.options.slidesToShow ? _.options.slidesToScroll : _.options.slidesToShow;
        }

        return indexes;

    };

    Slick.prototype.getSlick = function() {

        return this;

    };

    Slick.prototype.getSlideCount = function() {

        var _ = this,
            slidesTraversed, swipedSlide, centerOffset;

        centerOffset = _.options.centerMode === true ? _.slideWidth * Math.floor(_.options.slidesToShow / 2) : 0;

        if (_.options.swipeToSlide === true) {
            _.$slideTrack.find('.slick-slide').each(function(index, slide) {
                if (slide.offsetLeft - centerOffset + ($(slide).outerWidth() / 2) > (_.swipeLeft * -1)) {
                    swipedSlide = slide;
                    return false;
                }
            });

            slidesTraversed = Math.abs($(swipedSlide).attr('data-slick-index') - _.currentSlide) || 1;

            return slidesTraversed;

        } else {
            return _.options.slidesToScroll;
        }

    };

    Slick.prototype.goTo = Slick.prototype.slickGoTo = function(slide, dontAnimate) {

        var _ = this;

        _.changeSlide({
            data: {
                message: 'index',
                index: parseInt(slide)
            }
        }, dontAnimate);

    };

    Slick.prototype.init = function(creation) {

        var _ = this;

        if (!$(_.$slider).hasClass('slick-initialized')) {

            $(_.$slider).addClass('slick-initialized');

            _.buildRows();
            _.buildOut();
            _.setProps();
            _.startLoad();
            _.loadSlider();
            _.initializeEvents();
            _.updateArrows();
            _.updateDots();
            _.checkResponsive(true);
            _.focusHandler();

        }

        if (creation) {
            _.$slider.trigger('init', [_]);
        }

        if (_.options.accessibility === true) {
            _.initADA();
        }

        if ( _.options.autoplay ) {

            _.paused = false;
            _.autoPlay();

        }

    };

    Slick.prototype.initADA = function() {
        var _ = this,
                numDotGroups = Math.ceil(_.slideCount / _.options.slidesToShow),
                tabControlIndexes = _.getNavigableIndexes().filter(function(val) {
                    return (val >= 0) && (val < _.slideCount);
                });

        _.$slides.add(_.$slideTrack.find('.slick-cloned')).attr({
            'aria-hidden': 'true',
            'tabindex': '-1'
        }).find('a, input, button, select').attr({
            'tabindex': '-1'
        });

        if (_.$dots !== null) {
            _.$slides.not(_.$slideTrack.find('.slick-cloned')).each(function(i) {
                var slideControlIndex = tabControlIndexes.indexOf(i);

                $(this).attr({
                    'role': 'tabpanel',
                    'id': 'slick-slide' + _.instanceUid + i,
                    'tabindex': -1
                });

                if (slideControlIndex !== -1) {
                   var ariaButtonControl = 'slick-slide-control' + _.instanceUid + slideControlIndex
                   if ($('#' + ariaButtonControl).length) {
                     $(this).attr({
                         'aria-describedby': ariaButtonControl
                     });
                   }
                }
            });

            _.$dots.attr('role', 'tablist').find('li').each(function(i) {
                var mappedSlideIndex = tabControlIndexes[i];

                $(this).attr({
                    'role': 'presentation'
                });

                $(this).find('button').first().attr({
                    'role': 'tab',
                    'id': 'slick-slide-control' + _.instanceUid + i,
                    'aria-controls': 'slick-slide' + _.instanceUid + mappedSlideIndex,
                    'aria-label': (i + 1) + ' of ' + numDotGroups,
                    'aria-selected': null,
                    'tabindex': '-1'
                });

            }).eq(_.currentSlide).find('button').attr({
                'aria-selected': 'true',
                'tabindex': '0'
            }).end();
        }

        for (var i=_.currentSlide, max=i+_.options.slidesToShow; i < max; i++) {
          if (_.options.focusOnChange) {
            _.$slides.eq(i).attr({'tabindex': '0'});
          } else {
            _.$slides.eq(i).removeAttr('tabindex');
          }
        }

        _.activateADA();

    };

    Slick.prototype.initArrowEvents = function() {

        var _ = this;

        if (_.options.arrows === true && _.slideCount > _.options.slidesToShow) {
            _.$prevArrow
               .off('click.slick')
               .on('click.slick', {
                    message: 'previous'
               }, _.changeSlide);
            _.$nextArrow
               .off('click.slick')
               .on('click.slick', {
                    message: 'next'
               }, _.changeSlide);

            if (_.options.accessibility === true) {
                _.$prevArrow.on('keydown.slick', _.keyHandler);
                _.$nextArrow.on('keydown.slick', _.keyHandler);
            }
        }

    };

    Slick.prototype.initDotEvents = function() {

        var _ = this;

        if (_.options.dots === true && _.slideCount > _.options.slidesToShow) {
            $('li', _.$dots).on('click.slick', {
                message: 'index'
            }, _.changeSlide);

            if (_.options.accessibility === true) {
                _.$dots.on('keydown.slick', _.keyHandler);
            }
        }

        if (_.options.dots === true && _.options.pauseOnDotsHover === true && _.slideCount > _.options.slidesToShow) {

            $('li', _.$dots)
                .on('mouseenter.slick', $.proxy(_.interrupt, _, true))
                .on('mouseleave.slick', $.proxy(_.interrupt, _, false));

        }

    };

    Slick.prototype.initSlideEvents = function() {

        var _ = this;

        if ( _.options.pauseOnHover ) {

            _.$list.on('mouseenter.slick', $.proxy(_.interrupt, _, true));
            _.$list.on('mouseleave.slick', $.proxy(_.interrupt, _, false));

        }

    };

    Slick.prototype.initializeEvents = function() {

        var _ = this;

        _.initArrowEvents();

        _.initDotEvents();
        _.initSlideEvents();

        _.$list.on('touchstart.slick mousedown.slick', {
            action: 'start'
        }, _.swipeHandler);
        _.$list.on('touchmove.slick mousemove.slick', {
            action: 'move'
        }, _.swipeHandler);
        _.$list.on('touchend.slick mouseup.slick', {
            action: 'end'
        }, _.swipeHandler);
        _.$list.on('touchcancel.slick mouseleave.slick', {
            action: 'end'
        }, _.swipeHandler);

        _.$list.on('click.slick', _.clickHandler);

        $(document).on(_.visibilityChange, $.proxy(_.visibility, _));

        if (_.options.accessibility === true) {
            _.$list.on('keydown.slick', _.keyHandler);
        }

        if (_.options.focusOnSelect === true) {
            $(_.$slideTrack).children().on('click.slick', _.selectHandler);
        }

        $(window).on('orientationchange.slick.slick-' + _.instanceUid, $.proxy(_.orientationChange, _));

        $(window).on('resize.slick.slick-' + _.instanceUid, $.proxy(_.resize, _));

        $('[draggable!=true]', _.$slideTrack).on('dragstart', _.preventDefault);

        $(window).on('load.slick.slick-' + _.instanceUid, _.setPosition);
        $(_.setPosition);

    };

    Slick.prototype.initUI = function() {

        var _ = this;

        if (_.options.arrows === true && _.slideCount > _.options.slidesToShow) {

            _.$prevArrow.show();
            _.$nextArrow.show();

        }

        if (_.options.dots === true && _.slideCount > _.options.slidesToShow) {

            _.$dots.show();

        }

    };

    Slick.prototype.keyHandler = function(event) {

        var _ = this;
         //Dont slide if the cursor is inside the form fields and arrow keys are pressed
        if(!event.target.tagName.match('TEXTAREA|INPUT|SELECT')) {
            if (event.keyCode === 37 && _.options.accessibility === true) {
                _.changeSlide({
                    data: {
                        message: _.options.rtl === true ? 'next' :  'previous'
                    }
                });
            } else if (event.keyCode === 39 && _.options.accessibility === true) {
                _.changeSlide({
                    data: {
                        message: _.options.rtl === true ? 'previous' : 'next'
                    }
                });
            }
        }

    };

    Slick.prototype.lazyLoad = function() {

        var _ = this,
            loadRange, cloneRange, rangeStart, rangeEnd;

        function loadImages(imagesScope) {

            $('img[data-lazy]', imagesScope).each(function() {

                var image = $(this),
                    imageSource = $(this).attr('data-lazy'),
                    imageSrcSet = $(this).attr('data-srcset'),
                    imageSizes  = $(this).attr('data-sizes') || _.$slider.attr('data-sizes'),
                    imageToLoad = document.createElement('img');

                imageToLoad.onload = function() {

                    image
                        .animate({ opacity: 0 }, 100, function() {

                            if (imageSrcSet) {
                                image
                                    .attr('srcset', imageSrcSet );

                                if (imageSizes) {
                                    image
                                        .attr('sizes', imageSizes );
                                }
                            }

                            image
                                .attr('src', imageSource)
                                .animate({ opacity: 1 }, 200, function() {
                                    image
                                        .removeAttr('data-lazy data-srcset data-sizes')
                                        .removeClass('slick-loading');
                                });
                            _.$slider.trigger('lazyLoaded', [_, image, imageSource]);
                        });

                };

                imageToLoad.onerror = function() {

                    image
                        .removeAttr( 'data-lazy' )
                        .removeClass( 'slick-loading' )
                        .addClass( 'slick-lazyload-error' );

                    _.$slider.trigger('lazyLoadError', [ _, image, imageSource ]);

                };

                imageToLoad.src = imageSource;

            });

        }

        if (_.options.centerMode === true) {
            if (_.options.infinite === true) {
                rangeStart = _.currentSlide + (_.options.slidesToShow / 2 + 1);
                rangeEnd = rangeStart + _.options.slidesToShow + 2;
            } else {
                rangeStart = Math.max(0, _.currentSlide - (_.options.slidesToShow / 2 + 1));
                rangeEnd = 2 + (_.options.slidesToShow / 2 + 1) + _.currentSlide;
            }
        } else {
            rangeStart = _.options.infinite ? _.options.slidesToShow + _.currentSlide : _.currentSlide;
            rangeEnd = Math.ceil(rangeStart + _.options.slidesToShow);
            if (_.options.fade === true) {
                if (rangeStart > 0) rangeStart--;
                if (rangeEnd <= _.slideCount) rangeEnd++;
            }
        }

        loadRange = _.$slider.find('.slick-slide').slice(rangeStart, rangeEnd);

        if (_.options.lazyLoad === 'anticipated') {
            var prevSlide = rangeStart - 1,
                nextSlide = rangeEnd,
                $slides = _.$slider.find('.slick-slide');

            for (var i = 0; i < _.options.slidesToScroll; i++) {
                if (prevSlide < 0) prevSlide = _.slideCount - 1;
                loadRange = loadRange.add($slides.eq(prevSlide));
                loadRange = loadRange.add($slides.eq(nextSlide));
                prevSlide--;
                nextSlide++;
            }
        }

        loadImages(loadRange);

        if (_.slideCount <= _.options.slidesToShow) {
            cloneRange = _.$slider.find('.slick-slide');
            loadImages(cloneRange);
        } else
        if (_.currentSlide >= _.slideCount - _.options.slidesToShow) {
            cloneRange = _.$slider.find('.slick-cloned').slice(0, _.options.slidesToShow);
            loadImages(cloneRange);
        } else if (_.currentSlide === 0) {
            cloneRange = _.$slider.find('.slick-cloned').slice(_.options.slidesToShow * -1);
            loadImages(cloneRange);
        }

    };

    Slick.prototype.loadSlider = function() {

        var _ = this;

        _.setPosition();

        _.$slideTrack.css({
            opacity: 1
        });

        _.$slider.removeClass('slick-loading');

        _.initUI();

        if (_.options.lazyLoad === 'progressive') {
            _.progressiveLazyLoad();
        }

    };

    Slick.prototype.next = Slick.prototype.slickNext = function() {

        var _ = this;

        _.changeSlide({
            data: {
                message: 'next'
            }
        });

    };

    Slick.prototype.orientationChange = function() {

        var _ = this;

        _.checkResponsive();
        _.setPosition();

    };

    Slick.prototype.pause = Slick.prototype.slickPause = function() {

        var _ = this;

        _.autoPlayClear();
        _.paused = true;

    };

    Slick.prototype.play = Slick.prototype.slickPlay = function() {

        var _ = this;

        _.autoPlay();
        _.options.autoplay = true;
        _.paused = false;
        _.focussed = false;
        _.interrupted = false;

    };

    Slick.prototype.postSlide = function(index) {

        var _ = this;

        if( !_.unslicked ) {

            _.$slider.trigger('afterChange', [_, index]);

            _.animating = false;

            if (_.slideCount > _.options.slidesToShow) {
                _.setPosition();
            }

            _.swipeLeft = null;

            if ( _.options.autoplay ) {
                _.autoPlay();
            }

            if (_.options.accessibility === true) {
                _.initADA();

                if (_.options.focusOnChange) {
                    var $currentSlide = $(_.$slides.get(_.currentSlide));
                    $currentSlide.attr('tabindex', 0).focus();
                }
            }

        }

    };

    Slick.prototype.prev = Slick.prototype.slickPrev = function() {

        var _ = this;

        _.changeSlide({
            data: {
                message: 'previous'
            }
        });

    };

    Slick.prototype.preventDefault = function(event) {

        event.preventDefault();

    };

    Slick.prototype.progressiveLazyLoad = function( tryCount ) {

        tryCount = tryCount || 1;

        var _ = this,
            $imgsToLoad = $( 'img[data-lazy]', _.$slider ),
            image,
            imageSource,
            imageSrcSet,
            imageSizes,
            imageToLoad;

        if ( $imgsToLoad.length ) {

            image = $imgsToLoad.first();
            imageSource = image.attr('data-lazy');
            imageSrcSet = image.attr('data-srcset');
            imageSizes  = image.attr('data-sizes') || _.$slider.attr('data-sizes');
            imageToLoad = document.createElement('img');

            imageToLoad.onload = function() {

                if (imageSrcSet) {
                    image
                        .attr('srcset', imageSrcSet );

                    if (imageSizes) {
                        image
                            .attr('sizes', imageSizes );
                    }
                }

                image
                    .attr( 'src', imageSource )
                    .removeAttr('data-lazy data-srcset data-sizes')
                    .removeClass('slick-loading');

                if ( _.options.adaptiveHeight === true ) {
                    _.setPosition();
                }

                _.$slider.trigger('lazyLoaded', [ _, image, imageSource ]);
                _.progressiveLazyLoad();

            };

            imageToLoad.onerror = function() {

                if ( tryCount < 3 ) {

                    /**
                     * try to load the image 3 times,
                     * leave a slight delay so we don't get
                     * servers blocking the request.
                     */
                    setTimeout( function() {
                        _.progressiveLazyLoad( tryCount + 1 );
                    }, 500 );

                } else {

                    image
                        .removeAttr( 'data-lazy' )
                        .removeClass( 'slick-loading' )
                        .addClass( 'slick-lazyload-error' );

                    _.$slider.trigger('lazyLoadError', [ _, image, imageSource ]);

                    _.progressiveLazyLoad();

                }

            };

            imageToLoad.src = imageSource;

        } else {

            _.$slider.trigger('allImagesLoaded', [ _ ]);

        }

    };

    Slick.prototype.refresh = function( initializing ) {

        var _ = this, currentSlide, lastVisibleIndex;

        lastVisibleIndex = _.slideCount - _.options.slidesToShow;

        // in non-infinite sliders, we don't want to go past the
        // last visible index.
        if( !_.options.infinite && ( _.currentSlide > lastVisibleIndex )) {
            _.currentSlide = lastVisibleIndex;
        }

        // if less slides than to show, go to start.
        if ( _.slideCount <= _.options.slidesToShow ) {
            _.currentSlide = 0;

        }

        currentSlide = _.currentSlide;

        _.destroy(true);

        $.extend(_, _.initials, { currentSlide: currentSlide });

        _.init();

        if( !initializing ) {

            _.changeSlide({
                data: {
                    message: 'index',
                    index: currentSlide
                }
            }, false);

        }

    };

    Slick.prototype.registerBreakpoints = function() {

        var _ = this, breakpoint, currentBreakpoint, l,
            responsiveSettings = _.options.responsive || null;

        if ( $.type(responsiveSettings) === 'array' && responsiveSettings.length ) {

            _.respondTo = _.options.respondTo || 'window';

            for ( breakpoint in responsiveSettings ) {

                l = _.breakpoints.length-1;

                if (responsiveSettings.hasOwnProperty(breakpoint)) {
                    currentBreakpoint = responsiveSettings[breakpoint].breakpoint;

                    // loop through the breakpoints and cut out any existing
                    // ones with the same breakpoint number, we don't want dupes.
                    while( l >= 0 ) {
                        if( _.breakpoints[l] && _.breakpoints[l] === currentBreakpoint ) {
                            _.breakpoints.splice(l,1);
                        }
                        l--;
                    }

                    _.breakpoints.push(currentBreakpoint);
                    _.breakpointSettings[currentBreakpoint] = responsiveSettings[breakpoint].settings;

                }

            }

            _.breakpoints.sort(function(a, b) {
                return ( _.options.mobileFirst ) ? a-b : b-a;
            });

        }

    };

    Slick.prototype.reinit = function() {

        var _ = this;

        _.$slides =
            _.$slideTrack
                .children(_.options.slide)
                .addClass('slick-slide');

        _.slideCount = _.$slides.length;

        if (_.currentSlide >= _.slideCount && _.currentSlide !== 0) {
            _.currentSlide = _.currentSlide - _.options.slidesToScroll;
        }

        if (_.slideCount <= _.options.slidesToShow) {
            _.currentSlide = 0;
        }

        _.registerBreakpoints();

        _.setProps();
        _.setupInfinite();
        _.buildArrows();
        _.updateArrows();
        _.initArrowEvents();
        _.buildDots();
        _.updateDots();
        _.initDotEvents();
        _.cleanUpSlideEvents();
        _.initSlideEvents();

        _.checkResponsive(false, true);

        if (_.options.focusOnSelect === true) {
            $(_.$slideTrack).children().on('click.slick', _.selectHandler);
        }

        _.setSlideClasses(typeof _.currentSlide === 'number' ? _.currentSlide : 0);

        _.setPosition();
        _.focusHandler();

        _.paused = !_.options.autoplay;
        _.autoPlay();

        _.$slider.trigger('reInit', [_]);

    };

    Slick.prototype.resize = function() {

        var _ = this;

        if ($(window).width() !== _.windowWidth) {
            clearTimeout(_.windowDelay);
            _.windowDelay = window.setTimeout(function() {
                _.windowWidth = $(window).width();
                _.checkResponsive();
                if( !_.unslicked ) { _.setPosition(); }
            }, 50);
        }
    };

    Slick.prototype.removeSlide = Slick.prototype.slickRemove = function(index, removeBefore, removeAll) {

        var _ = this;

        if (typeof(index) === 'boolean') {
            removeBefore = index;
            index = removeBefore === true ? 0 : _.slideCount - 1;
        } else {
            index = removeBefore === true ? --index : index;
        }

        if (_.slideCount < 1 || index < 0 || index > _.slideCount - 1) {
            return false;
        }

        _.unload();

        if (removeAll === true) {
            _.$slideTrack.children().remove();
        } else {
            _.$slideTrack.children(this.options.slide).eq(index).remove();
        }

        _.$slides = _.$slideTrack.children(this.options.slide);

        _.$slideTrack.children(this.options.slide).detach();

        _.$slideTrack.append(_.$slides);

        _.$slidesCache = _.$slides;

        _.reinit();

    };

    Slick.prototype.setCSS = function(position) {

        var _ = this,
            positionProps = {},
            x, y;

        if (_.options.rtl === true) {
            position = -position;
        }
        x = _.positionProp == 'left' ? Math.ceil(position) + 'px' : '0px';
        y = _.positionProp == 'top' ? Math.ceil(position) + 'px' : '0px';

        positionProps[_.positionProp] = position;

        if (_.transformsEnabled === false) {
            _.$slideTrack.css(positionProps);
        } else {
            positionProps = {};
            if (_.cssTransitions === false) {
                positionProps[_.animType] = 'translate(' + x + ', ' + y + ')';
                _.$slideTrack.css(positionProps);
            } else {
                positionProps[_.animType] = 'translate3d(' + x + ', ' + y + ', 0px)';
                _.$slideTrack.css(positionProps);
            }
        }

    };

    Slick.prototype.setDimensions = function() {

        var _ = this;

        if (_.options.vertical === false) {
            if (_.options.centerMode === true) {
                _.$list.css({
                    padding: ('0px ' + _.options.centerPadding)
                });
            }
        } else {
            _.$list.height(_.$slides.first().outerHeight(true) * _.options.slidesToShow);
            if (_.options.centerMode === true) {
                _.$list.css({
                    padding: (_.options.centerPadding + ' 0px')
                });
            }
        }

        _.listWidth = _.$list.width();
        _.listHeight = _.$list.height();


        if (_.options.vertical === false && _.options.variableWidth === false) {
            _.slideWidth = Math.ceil(_.listWidth / _.options.slidesToShow);
            _.$slideTrack.width(Math.ceil((_.slideWidth * _.$slideTrack.children('.slick-slide').length)));

        } else if (_.options.variableWidth === true) {
            _.$slideTrack.width(5000 * _.slideCount);
        } else {
            _.slideWidth = Math.ceil(_.listWidth);
            _.$slideTrack.height(Math.ceil((_.$slides.first().outerHeight(true) * _.$slideTrack.children('.slick-slide').length)));
        }

        var offset = _.$slides.first().outerWidth(true) - _.$slides.first().width();
        if (_.options.variableWidth === false) _.$slideTrack.children('.slick-slide').width(_.slideWidth - offset);

    };

    Slick.prototype.setFade = function() {

        var _ = this,
            targetLeft;

        _.$slides.each(function(index, element) {
            targetLeft = (_.slideWidth * index) * -1;
            if (_.options.rtl === true) {
                $(element).css({
                    position: 'relative',
                    right: targetLeft,
                    top: 0,
                    zIndex: _.options.zIndex - 2,
                    opacity: 0
                });
            } else {
                $(element).css({
                    position: 'relative',
                    left: targetLeft,
                    top: 0,
                    zIndex: _.options.zIndex - 2,
                    opacity: 0
                });
            }
        });

        _.$slides.eq(_.currentSlide).css({
            zIndex: _.options.zIndex - 1,
            opacity: 1
        });

    };

    Slick.prototype.setHeight = function() {

        var _ = this;

        if (_.options.slidesToShow === 1 && _.options.adaptiveHeight === true && _.options.vertical === false) {
            var targetHeight = _.$slides.eq(_.currentSlide).outerHeight(true);
            _.$list.css('height', targetHeight);
        }

    };

    Slick.prototype.setOption =
    Slick.prototype.slickSetOption = function() {

        /**
         * accepts arguments in format of:
         *
         *  - for changing a single option's value:
         *     .slick("setOption", option, value, refresh )
         *
         *  - for changing a set of responsive options:
         *     .slick("setOption", 'responsive', [{}, ...], refresh )
         *
         *  - for updating multiple values at once (not responsive)
         *     .slick("setOption", { 'option': value, ... }, refresh )
         */

        var _ = this, l, item, option, value, refresh = false, type;

        if( $.type( arguments[0] ) === 'object' ) {

            option =  arguments[0];
            refresh = arguments[1];
            type = 'multiple';

        } else if ( $.type( arguments[0] ) === 'string' ) {

            option =  arguments[0];
            value = arguments[1];
            refresh = arguments[2];

            if ( arguments[0] === 'responsive' && $.type( arguments[1] ) === 'array' ) {

                type = 'responsive';

            } else if ( typeof arguments[1] !== 'undefined' ) {

                type = 'single';

            }

        }

        if ( type === 'single' ) {

            _.options[option] = value;


        } else if ( type === 'multiple' ) {

            $.each( option , function( opt, val ) {

                _.options[opt] = val;

            });


        } else if ( type === 'responsive' ) {

            for ( item in value ) {

                if( $.type( _.options.responsive ) !== 'array' ) {

                    _.options.responsive = [ value[item] ];

                } else {

                    l = _.options.responsive.length-1;

                    // loop through the responsive object and splice out duplicates.
                    while( l >= 0 ) {

                        if( _.options.responsive[l].breakpoint === value[item].breakpoint ) {

                            _.options.responsive.splice(l,1);

                        }

                        l--;

                    }

                    _.options.responsive.push( value[item] );

                }

            }

        }

        if ( refresh ) {

            _.unload();
            _.reinit();

        }

    };

    Slick.prototype.setPosition = function() {

        var _ = this;

        _.setDimensions();

        _.setHeight();

        if (_.options.fade === false) {
            _.setCSS(_.getLeft(_.currentSlide));
        } else {
            _.setFade();
        }

        _.$slider.trigger('setPosition', [_]);

    };

    Slick.prototype.setProps = function() {

        var _ = this,
            bodyStyle = document.body.style;

        _.positionProp = _.options.vertical === true ? 'top' : 'left';

        if (_.positionProp === 'top') {
            _.$slider.addClass('slick-vertical');
        } else {
            _.$slider.removeClass('slick-vertical');
        }

        if (bodyStyle.WebkitTransition !== undefined ||
            bodyStyle.MozTransition !== undefined ||
            bodyStyle.msTransition !== undefined) {
            if (_.options.useCSS === true) {
                _.cssTransitions = true;
            }
        }

        if ( _.options.fade ) {
            if ( typeof _.options.zIndex === 'number' ) {
                if( _.options.zIndex < 3 ) {
                    _.options.zIndex = 3;
                }
            } else {
                _.options.zIndex = _.defaults.zIndex;
            }
        }

        if (bodyStyle.OTransform !== undefined) {
            _.animType = 'OTransform';
            _.transformType = '-o-transform';
            _.transitionType = 'OTransition';
            if (bodyStyle.perspectiveProperty === undefined && bodyStyle.webkitPerspective === undefined) _.animType = false;
        }
        if (bodyStyle.MozTransform !== undefined) {
            _.animType = 'MozTransform';
            _.transformType = '-moz-transform';
            _.transitionType = 'MozTransition';
            if (bodyStyle.perspectiveProperty === undefined && bodyStyle.MozPerspective === undefined) _.animType = false;
        }
        if (bodyStyle.webkitTransform !== undefined) {
            _.animType = 'webkitTransform';
            _.transformType = '-webkit-transform';
            _.transitionType = 'webkitTransition';
            if (bodyStyle.perspectiveProperty === undefined && bodyStyle.webkitPerspective === undefined) _.animType = false;
        }
        if (bodyStyle.msTransform !== undefined) {
            _.animType = 'msTransform';
            _.transformType = '-ms-transform';
            _.transitionType = 'msTransition';
            if (bodyStyle.msTransform === undefined) _.animType = false;
        }
        if (bodyStyle.transform !== undefined && _.animType !== false) {
            _.animType = 'transform';
            _.transformType = 'transform';
            _.transitionType = 'transition';
        }
        _.transformsEnabled = _.options.useTransform && (_.animType !== null && _.animType !== false);
    };


    Slick.prototype.setSlideClasses = function(index) {

        var _ = this,
            centerOffset, allSlides, indexOffset, remainder;

        allSlides = _.$slider
            .find('.slick-slide')
            .removeClass('slick-active slick-center slick-current')
            .attr('aria-hidden', 'true');

        _.$slides
            .eq(index)
            .addClass('slick-current');

        if (_.options.centerMode === true) {

            var evenCoef = _.options.slidesToShow % 2 === 0 ? 1 : 0;

            centerOffset = Math.floor(_.options.slidesToShow / 2);

            if (_.options.infinite === true) {

                if (index >= centerOffset && index <= (_.slideCount - 1) - centerOffset) {
                    _.$slides
                        .slice(index - centerOffset + evenCoef, index + centerOffset + 1)
                        .addClass('slick-active')
                        .attr('aria-hidden', 'false');

                } else {

                    indexOffset = _.options.slidesToShow + index;
                    allSlides
                        .slice(indexOffset - centerOffset + 1 + evenCoef, indexOffset + centerOffset + 2)
                        .addClass('slick-active')
                        .attr('aria-hidden', 'false');

                }

                if (index === 0) {

                    allSlides
                        .eq(allSlides.length - 1 - _.options.slidesToShow)
                        .addClass('slick-center');

                } else if (index === _.slideCount - 1) {

                    allSlides
                        .eq(_.options.slidesToShow)
                        .addClass('slick-center');

                }

            }

            _.$slides
                .eq(index)
                .addClass('slick-center');

        } else {

            if (index >= 0 && index <= (_.slideCount - _.options.slidesToShow)) {

                _.$slides
                    .slice(index, index + _.options.slidesToShow)
                    .addClass('slick-active')
                    .attr('aria-hidden', 'false');

            } else if (allSlides.length <= _.options.slidesToShow) {

                allSlides
                    .addClass('slick-active')
                    .attr('aria-hidden', 'false');

            } else {

                remainder = _.slideCount % _.options.slidesToShow;
                indexOffset = _.options.infinite === true ? _.options.slidesToShow + index : index;

                if (_.options.slidesToShow == _.options.slidesToScroll && (_.slideCount - index) < _.options.slidesToShow) {

                    allSlides
                        .slice(indexOffset - (_.options.slidesToShow - remainder), indexOffset + remainder)
                        .addClass('slick-active')
                        .attr('aria-hidden', 'false');

                } else {

                    allSlides
                        .slice(indexOffset, indexOffset + _.options.slidesToShow)
                        .addClass('slick-active')
                        .attr('aria-hidden', 'false');

                }

            }

        }

        if (_.options.lazyLoad === 'ondemand' || _.options.lazyLoad === 'anticipated') {
            _.lazyLoad();
        }
    };

    Slick.prototype.setupInfinite = function() {

        var _ = this,
            i, slideIndex, infiniteCount;

        if (_.options.fade === true) {
            _.options.centerMode = false;
        }

        if (_.options.infinite === true && _.options.fade === false) {

            slideIndex = null;

            if (_.slideCount > _.options.slidesToShow) {

                if (_.options.centerMode === true) {
                    infiniteCount = _.options.slidesToShow + 1;
                } else {
                    infiniteCount = _.options.slidesToShow;
                }

                for (i = _.slideCount; i > (_.slideCount -
                        infiniteCount); i -= 1) {
                    slideIndex = i - 1;
                    $(_.$slides[slideIndex]).clone(true).attr('id', '')
                        .attr('data-slick-index', slideIndex - _.slideCount)
                        .prependTo(_.$slideTrack).addClass('slick-cloned');
                }
                for (i = 0; i < infiniteCount  + _.slideCount; i += 1) {
                    slideIndex = i;
                    $(_.$slides[slideIndex]).clone(true).attr('id', '')
                        .attr('data-slick-index', slideIndex + _.slideCount)
                        .appendTo(_.$slideTrack).addClass('slick-cloned');
                }
                _.$slideTrack.find('.slick-cloned').find('[id]').each(function() {
                    $(this).attr('id', '');
                });

            }

        }

    };

    Slick.prototype.interrupt = function( toggle ) {

        var _ = this;

        if( !toggle ) {
            _.autoPlay();
        }
        _.interrupted = toggle;

    };

    Slick.prototype.selectHandler = function(event) {

        var _ = this;

        var targetElement =
            $(event.target).is('.slick-slide') ?
                $(event.target) :
                $(event.target).parents('.slick-slide');

        var index = parseInt(targetElement.attr('data-slick-index'));

        if (!index) index = 0;

        if (_.slideCount <= _.options.slidesToShow) {

            _.slideHandler(index, false, true);
            return;

        }

        _.slideHandler(index);

    };

    Slick.prototype.slideHandler = function(index, sync, dontAnimate) {

        var targetSlide, animSlide, oldSlide, slideLeft, targetLeft = null,
            _ = this, navTarget;

        sync = sync || false;

        if (_.animating === true && _.options.waitForAnimate === true) {
            return;
        }

        if (_.options.fade === true && _.currentSlide === index) {
            return;
        }

        if (sync === false) {
            _.asNavFor(index);
        }

        targetSlide = index;
        targetLeft = _.getLeft(targetSlide);
        slideLeft = _.getLeft(_.currentSlide);

        _.currentLeft = _.swipeLeft === null ? slideLeft : _.swipeLeft;

        if (_.options.infinite === false && _.options.centerMode === false && (index < 0 || index > _.getDotCount() * _.options.slidesToScroll)) {
            if (_.options.fade === false) {
                targetSlide = _.currentSlide;
                if (dontAnimate !== true && _.slideCount > _.options.slidesToShow) {
                    _.animateSlide(slideLeft, function() {
                        _.postSlide(targetSlide);
                    });
                } else {
                    _.postSlide(targetSlide);
                }
            }
            return;
        } else if (_.options.infinite === false && _.options.centerMode === true && (index < 0 || index > (_.slideCount - _.options.slidesToScroll))) {
            if (_.options.fade === false) {
                targetSlide = _.currentSlide;
                if (dontAnimate !== true && _.slideCount > _.options.slidesToShow) {
                    _.animateSlide(slideLeft, function() {
                        _.postSlide(targetSlide);
                    });
                } else {
                    _.postSlide(targetSlide);
                }
            }
            return;
        }

        if ( _.options.autoplay ) {
            clearInterval(_.autoPlayTimer);
        }

        if (targetSlide < 0) {
            if (_.slideCount % _.options.slidesToScroll !== 0) {
                animSlide = _.slideCount - (_.slideCount % _.options.slidesToScroll);
            } else {
                animSlide = _.slideCount + targetSlide;
            }
        } else if (targetSlide >= _.slideCount) {
            if (_.slideCount % _.options.slidesToScroll !== 0) {
                animSlide = 0;
            } else {
                animSlide = targetSlide - _.slideCount;
            }
        } else {
            animSlide = targetSlide;
        }

        _.animating = true;

        _.$slider.trigger('beforeChange', [_, _.currentSlide, animSlide]);

        oldSlide = _.currentSlide;
        _.currentSlide = animSlide;

        _.setSlideClasses(_.currentSlide);

        if ( _.options.asNavFor ) {

            navTarget = _.getNavTarget();
            navTarget = navTarget.slick('getSlick');

            if ( navTarget.slideCount <= navTarget.options.slidesToShow ) {
                navTarget.setSlideClasses(_.currentSlide);
            }

        }

        _.updateDots();
        _.updateArrows();

        if (_.options.fade === true) {
            if (dontAnimate !== true) {

                _.fadeSlideOut(oldSlide);

                _.fadeSlide(animSlide, function() {
                    _.postSlide(animSlide);
                });

            } else {
                _.postSlide(animSlide);
            }
            _.animateHeight();
            return;
        }

        if (dontAnimate !== true && _.slideCount > _.options.slidesToShow) {
            _.animateSlide(targetLeft, function() {
                _.postSlide(animSlide);
            });
        } else {
            _.postSlide(animSlide);
        }

    };

    Slick.prototype.startLoad = function() {

        var _ = this;

        if (_.options.arrows === true && _.slideCount > _.options.slidesToShow) {

            _.$prevArrow.hide();
            _.$nextArrow.hide();

        }

        if (_.options.dots === true && _.slideCount > _.options.slidesToShow) {

            _.$dots.hide();

        }

        _.$slider.addClass('slick-loading');

    };

    Slick.prototype.swipeDirection = function() {

        var xDist, yDist, r, swipeAngle, _ = this;

        xDist = _.touchObject.startX - _.touchObject.curX;
        yDist = _.touchObject.startY - _.touchObject.curY;
        r = Math.atan2(yDist, xDist);

        swipeAngle = Math.round(r * 180 / Math.PI);
        if (swipeAngle < 0) {
            swipeAngle = 360 - Math.abs(swipeAngle);
        }

        if ((swipeAngle <= 45) && (swipeAngle >= 0)) {
            return (_.options.rtl === false ? 'left' : 'right');
        }
        if ((swipeAngle <= 360) && (swipeAngle >= 315)) {
            return (_.options.rtl === false ? 'left' : 'right');
        }
        if ((swipeAngle >= 135) && (swipeAngle <= 225)) {
            return (_.options.rtl === false ? 'right' : 'left');
        }
        if (_.options.verticalSwiping === true) {
            if ((swipeAngle >= 35) && (swipeAngle <= 135)) {
                return 'down';
            } else {
                return 'up';
            }
        }

        return 'vertical';

    };

    Slick.prototype.swipeEnd = function(event) {

        var _ = this,
            slideCount,
            direction;

        _.dragging = false;
        _.swiping = false;

        if (_.scrolling) {
            _.scrolling = false;
            return false;
        }

        _.interrupted = false;
        _.shouldClick = ( _.touchObject.swipeLength > 10 ) ? false : true;

        if ( _.touchObject.curX === undefined ) {
            return false;
        }

        if ( _.touchObject.edgeHit === true ) {
            _.$slider.trigger('edge', [_, _.swipeDirection() ]);
        }

        if ( _.touchObject.swipeLength >= _.touchObject.minSwipe ) {

            direction = _.swipeDirection();

            switch ( direction ) {

                case 'left':
                case 'down':

                    slideCount =
                        _.options.swipeToSlide ?
                            _.checkNavigable( _.currentSlide + _.getSlideCount() ) :
                            _.currentSlide + _.getSlideCount();

                    _.currentDirection = 0;

                    break;

                case 'right':
                case 'up':

                    slideCount =
                        _.options.swipeToSlide ?
                            _.checkNavigable( _.currentSlide - _.getSlideCount() ) :
                            _.currentSlide - _.getSlideCount();

                    _.currentDirection = 1;

                    break;

                default:


            }

            if( direction != 'vertical' ) {

                _.slideHandler( slideCount );
                _.touchObject = {};
                _.$slider.trigger('swipe', [_, direction ]);

            }

        } else {

            if ( _.touchObject.startX !== _.touchObject.curX ) {

                _.slideHandler( _.currentSlide );
                _.touchObject = {};

            }

        }

    };

    Slick.prototype.swipeHandler = function(event) {

        var _ = this;

        if ((_.options.swipe === false) || ('ontouchend' in document && _.options.swipe === false)) {
            return;
        } else if (_.options.draggable === false && event.type.indexOf('mouse') !== -1) {
            return;
        }

        _.touchObject.fingerCount = event.originalEvent && event.originalEvent.touches !== undefined ?
            event.originalEvent.touches.length : 1;

        _.touchObject.minSwipe = _.listWidth / _.options
            .touchThreshold;

        if (_.options.verticalSwiping === true) {
            _.touchObject.minSwipe = _.listHeight / _.options
                .touchThreshold;
        }

        switch (event.data.action) {

            case 'start':
                _.swipeStart(event);
                break;

            case 'move':
                _.swipeMove(event);
                break;

            case 'end':
                _.swipeEnd(event);
                break;

        }

    };

    Slick.prototype.swipeMove = function(event) {

        var _ = this,
            edgeWasHit = false,
            curLeft, swipeDirection, swipeLength, positionOffset, touches, verticalSwipeLength;

        touches = event.originalEvent !== undefined ? event.originalEvent.touches : null;

        if (!_.dragging || _.scrolling || touches && touches.length !== 1) {
            return false;
        }

        curLeft = _.getLeft(_.currentSlide);

        _.touchObject.curX = touches !== undefined ? touches[0].pageX : event.clientX;
        _.touchObject.curY = touches !== undefined ? touches[0].pageY : event.clientY;

        _.touchObject.swipeLength = Math.round(Math.sqrt(
            Math.pow(_.touchObject.curX - _.touchObject.startX, 2)));

        verticalSwipeLength = Math.round(Math.sqrt(
            Math.pow(_.touchObject.curY - _.touchObject.startY, 2)));

        if (!_.options.verticalSwiping && !_.swiping && verticalSwipeLength > 4) {
            _.scrolling = true;
            return false;
        }

        if (_.options.verticalSwiping === true) {
            _.touchObject.swipeLength = verticalSwipeLength;
        }

        swipeDirection = _.swipeDirection();

        if (event.originalEvent !== undefined && _.touchObject.swipeLength > 4) {
            _.swiping = true;
            event.preventDefault();
        }

        positionOffset = (_.options.rtl === false ? 1 : -1) * (_.touchObject.curX > _.touchObject.startX ? 1 : -1);
        if (_.options.verticalSwiping === true) {
            positionOffset = _.touchObject.curY > _.touchObject.startY ? 1 : -1;
        }


        swipeLength = _.touchObject.swipeLength;

        _.touchObject.edgeHit = false;

        if (_.options.infinite === false) {
            if ((_.currentSlide === 0 && swipeDirection === 'right') || (_.currentSlide >= _.getDotCount() && swipeDirection === 'left')) {
                swipeLength = _.touchObject.swipeLength * _.options.edgeFriction;
                _.touchObject.edgeHit = true;
            }
        }

        if (_.options.vertical === false) {
            _.swipeLeft = curLeft + swipeLength * positionOffset;
        } else {
            _.swipeLeft = curLeft + (swipeLength * (_.$list.height() / _.listWidth)) * positionOffset;
        }
        if (_.options.verticalSwiping === true) {
            _.swipeLeft = curLeft + swipeLength * positionOffset;
        }

        if (_.options.fade === true || _.options.touchMove === false) {
            return false;
        }

        if (_.animating === true) {
            _.swipeLeft = null;
            return false;
        }

        _.setCSS(_.swipeLeft);

    };

    Slick.prototype.swipeStart = function(event) {

        var _ = this,
            touches;

        _.interrupted = true;

        if (_.touchObject.fingerCount !== 1 || _.slideCount <= _.options.slidesToShow) {
            _.touchObject = {};
            return false;
        }

        if (event.originalEvent !== undefined && event.originalEvent.touches !== undefined) {
            touches = event.originalEvent.touches[0];
        }

        _.touchObject.startX = _.touchObject.curX = touches !== undefined ? touches.pageX : event.clientX;
        _.touchObject.startY = _.touchObject.curY = touches !== undefined ? touches.pageY : event.clientY;

        _.dragging = true;

    };

    Slick.prototype.unfilterSlides = Slick.prototype.slickUnfilter = function() {

        var _ = this;

        if (_.$slidesCache !== null) {

            _.unload();

            _.$slideTrack.children(this.options.slide).detach();

            _.$slidesCache.appendTo(_.$slideTrack);

            _.reinit();

        }

    };

    Slick.prototype.unload = function() {

        var _ = this;

        $('.slick-cloned', _.$slider).remove();

        if (_.$dots) {
            _.$dots.remove();
        }

        if (_.$prevArrow && _.htmlExpr.test(_.options.prevArrow)) {
            _.$prevArrow.remove();
        }

        if (_.$nextArrow && _.htmlExpr.test(_.options.nextArrow)) {
            _.$nextArrow.remove();
        }

        _.$slides
            .removeClass('slick-slide slick-active slick-visible slick-current')
            .attr('aria-hidden', 'true')
            .css('width', '');

    };

    Slick.prototype.unslick = function(fromBreakpoint) {

        var _ = this;
        _.$slider.trigger('unslick', [_, fromBreakpoint]);
        _.destroy();

    };

    Slick.prototype.updateArrows = function() {

        var _ = this,
            centerOffset;

        centerOffset = Math.floor(_.options.slidesToShow / 2);

        if ( _.options.arrows === true &&
            _.slideCount > _.options.slidesToShow &&
            !_.options.infinite ) {

            _.$prevArrow.removeClass('slick-disabled').attr('aria-disabled', 'false');
            _.$nextArrow.removeClass('slick-disabled').attr('aria-disabled', 'false');

            if (_.currentSlide === 0) {

                _.$prevArrow.addClass('slick-disabled').attr('aria-disabled', 'true');
                _.$nextArrow.removeClass('slick-disabled').attr('aria-disabled', 'false');

            } else if (_.currentSlide >= _.slideCount - _.options.slidesToShow && _.options.centerMode === false) {

                _.$nextArrow.addClass('slick-disabled').attr('aria-disabled', 'true');
                _.$prevArrow.removeClass('slick-disabled').attr('aria-disabled', 'false');

            } else if (_.currentSlide >= _.slideCount - 1 && _.options.centerMode === true) {

                _.$nextArrow.addClass('slick-disabled').attr('aria-disabled', 'true');
                _.$prevArrow.removeClass('slick-disabled').attr('aria-disabled', 'false');

            }

        }

    };

    Slick.prototype.updateDots = function() {

        var _ = this;

        if (_.$dots !== null) {

            _.$dots
                .find('li')
                    .removeClass('slick-active')
                    .end();

            _.$dots
                .find('li')
                .eq(Math.floor(_.currentSlide / _.options.slidesToScroll))
                .addClass('slick-active');

        }

    };

    Slick.prototype.visibility = function() {

        var _ = this;

        if ( _.options.autoplay ) {

            if ( document[_.hidden] ) {

                _.interrupted = true;

            } else {

                _.interrupted = false;

            }

        }

    };

    $.fn.slick = function() {
        var _ = this,
            opt = arguments[0],
            args = Array.prototype.slice.call(arguments, 1),
            l = _.length,
            i,
            ret;
        for (i = 0; i < l; i++) {
            if (typeof opt == 'object' || typeof opt == 'undefined')
                _[i].slick = new Slick(_[i], opt);
            else
                ret = _[i].slick[opt].apply(_[i].slick, args);
            if (typeof ret != 'undefined') return ret;
        }
        return _;
    };

}));

/*
    A simple jQuery modal (http://github.com/kylefox/jquery-modal)
    Version 0.9.1
*/

(function (factory) {
    // Making your jQuery plugin work better with npm tools
    // http://blog.npmjs.org/post/112712169830/making-your-jquery-plugin-work-better-with-npm
    if(typeof module === "object" && typeof module.exports === "object") {
        factory(require("jquery"), window, document);
    }
    else {
        factory(jQuery, window, document);
    }
}(function($, window, document, undefined) {

    var modals = [],
        getCurrent = function() {
            return modals.length ? modals[modals.length - 1] : null;
        },
        selectCurrent = function() {
            var i,
                selected = false;
            for (i=modals.length-1; i>=0; i--) {
                if (modals[i].$blocker) {
                    modals[i].$blocker.toggleClass('current',!selected).toggleClass('behind',selected);
                    selected = true;
                }
            }
        };

    $.modal = function(el, options) {
        var remove, target;
        this.$body = $('body');
        this.options = $.extend({}, $.modal.defaults, options);
        this.options.doFade = !isNaN(parseInt(this.options.fadeDuration, 10));
        this.$blocker = null;
        if (this.options.closeExisting)
            while ($.modal.isActive())
                $.modal.close(); // Close any open modals.
        modals.push(this);
        if (el.is('a')) {
            target = el.attr('href');
            this.anchor = el;
            //Select element by id from href
            if (/^#/.test(target)) {
                this.$elm = $(target);
                if (this.$elm.length !== 1) return null;
                this.$body.append(this.$elm);
                this.open();
                //AJAX
            } else {
                this.$elm = $('<div>');
                this.$body.append(this.$elm);
                remove = function(event, modal) { modal.elm.remove(); };
                this.showSpinner();
                el.trigger($.modal.AJAX_SEND);
                $.get(target).done(function(html) {
                    if (!$.modal.isActive()) return;
                    el.trigger($.modal.AJAX_SUCCESS);
                    var current = getCurrent();
                    current.$elm.empty().append(html).on($.modal.CLOSE, remove);
                    current.hideSpinner();
                    current.open();
                    el.trigger($.modal.AJAX_COMPLETE);
                }).fail(function() {
                    el.trigger($.modal.AJAX_FAIL);
                    var current = getCurrent();
                    current.hideSpinner();
                    modals.pop(); // remove expected modal from the list
                    el.trigger($.modal.AJAX_COMPLETE);
                });
            }
        } else {
            this.$elm = el;
            this.anchor = el;
            this.$body.append(this.$elm);
            this.open();
        }
    };

    $.modal.prototype = {
        constructor: $.modal,

        open: function() {
            var m = this;
            this.block();
            this.anchor.blur();
            if(this.options.doFade) {
                setTimeout(function() {
                    m.show();
                }, this.options.fadeDuration * this.options.fadeDelay);
            } else {
                this.show();
            }
            $(document).off('keydown.modal').on('keydown.modal', function(event) {
                var current = getCurrent();
                if (event.which === 27 && current.options.escapeClose) current.close();
            });
            if (this.options.clickClose)
                this.$blocker.click(function(e) {
                    if (e.target === this)
                        $.modal.close();
                });
        },

        close: function() {
            modals.pop();
            this.unblock();
            this.hide();
            if (!$.modal.isActive())
                $(document).off('keydown.modal');
        },

        block: function() {
            this.$elm.trigger($.modal.BEFORE_BLOCK, [this._ctx()]);
            this.$body.css('overflow','hidden');
            this.$blocker = $('<div class="' + this.options.blockerClass + ' blocker current"></div>').appendTo(this.$body);
            selectCurrent();
            if(this.options.doFade) {
                this.$blocker.css('opacity',0).animate({opacity: 1}, this.options.fadeDuration);
            }
            this.$elm.trigger($.modal.BLOCK, [this._ctx()]);
        },

        unblock: function(now) {
            if (!now && this.options.doFade)
                this.$blocker.fadeOut(this.options.fadeDuration, this.unblock.bind(this,true));
            else {
                this.$blocker.children().appendTo(this.$body);
                this.$blocker.remove();
                this.$blocker = null;
                selectCurrent();
                if (!$.modal.isActive())
                    this.$body.css('overflow','');
            }
        },

        show: function() {
            this.$elm.trigger($.modal.BEFORE_OPEN, [this._ctx()]);
            if (this.options.showClose) {
                this.closeButton = $('<a href="#close-modal" rel="modal:close" class="close-modal ' + this.options.closeClass + '">' + this.options.closeText + '</a>');
                this.$elm.append(this.closeButton);
            }
            this.$elm.addClass(this.options.modalClass).appendTo(this.$blocker);
            if(this.options.doFade) {
                this.$elm.css({opacity: 0, display: 'inline-block'}).animate({opacity: 1}, this.options.fadeDuration);
            } else {
                this.$elm.css('display', 'inline-block');
            }
            this.$elm.trigger($.modal.OPEN, [this._ctx()]);
        },

        hide: function() {
            this.$elm.trigger($.modal.BEFORE_CLOSE, [this._ctx()]);
            if (this.closeButton) this.closeButton.remove();
            var _this = this;
            if(this.options.doFade) {
                this.$elm.fadeOut(this.options.fadeDuration, function () {
                    _this.$elm.trigger($.modal.AFTER_CLOSE, [_this._ctx()]);
                });
            } else {
                this.$elm.hide(0, function () {
                    _this.$elm.trigger($.modal.AFTER_CLOSE, [_this._ctx()]);
                });
            }
            this.$elm.trigger($.modal.CLOSE, [this._ctx()]);
        },

        showSpinner: function() {
            if (!this.options.showSpinner) return;
            this.spinner = this.spinner || $('<div class="' + this.options.modalClass + '-spinner"></div>')
                .append(this.options.spinnerHtml);
            this.$body.append(this.spinner);
            this.spinner.show();
        },

        hideSpinner: function() {
            if (this.spinner) this.spinner.remove();
        },

        //Return context for custom events
        _ctx: function() {
            return { elm: this.$elm, $elm: this.$elm, $blocker: this.$blocker, options: this.options };
        }
    };

    $.modal.close = function(event) {
        if (!$.modal.isActive()) return;
        if (event) event.preventDefault();
        var current = getCurrent();
        current.close();
        return current.$elm;
    };

    // Returns if there currently is an active modal
    $.modal.isActive = function () {
        return modals.length > 0;
    };

    $.modal.getCurrent = getCurrent;

    $.modal.defaults = {
        closeExisting: true,
        escapeClose: true,
        clickClose: true,
        closeText: 'Close',
        closeClass: '',
        modalClass: "modal",
        blockerClass: "jquery-modal",
        spinnerHtml: '<div class="rect1"></div><div class="rect2"></div><div class="rect3"></div><div class="rect4"></div>',
        showSpinner: true,
        showClose: true,
        fadeDuration: null,   // Number of milliseconds the fade animation takes.
        fadeDelay: 1.0        // Point during the overlay's fade-in that the modal begins to fade in (.5 = 50%, 1.5 = 150%, etc.)
    };

    // Event constants
    $.modal.BEFORE_BLOCK = 'modal:before-block';
    $.modal.BLOCK = 'modal:block';
    $.modal.BEFORE_OPEN = 'modal:before-open';
    $.modal.OPEN = 'modal:open';
    $.modal.BEFORE_CLOSE = 'modal:before-close';
    $.modal.CLOSE = 'modal:close';
    $.modal.AFTER_CLOSE = 'modal:after-close';
    $.modal.AJAX_SEND = 'modal:ajax:send';
    $.modal.AJAX_SUCCESS = 'modal:ajax:success';
    $.modal.AJAX_FAIL = 'modal:ajax:fail';
    $.modal.AJAX_COMPLETE = 'modal:ajax:complete';

    $.fn.modal = function(options){
        if (this.length === 1) {
            new $.modal(this, options);
        }
        return this;
    };

    // Automatically bind links with rel="modal:close" to, well, close the modal.
    $(document).on('click.modal', 'a[rel~="modal:close"]', $.modal.close);
    $(document).on('click.modal', 'a[rel~="modal:open"]', function(event) {
        event.preventDefault();
        $(this).modal();
    });
}));