add datepicker

- remove jquery.ui.datepicker
- modify and style bootstrap.datepicker
- todayBtn option is styled
- Zammad Calendar: option daysOfWeekDisabled and datesDisabled

online demo with options here: http://eternicode.github.io/bootstrap-datepicker

app/assets/javascripts/app/controllers/layout_ref.js.coffee

@@ -843,6 +843,11 @@ class TicketZoomRef extends App.ControllerContent
       colors: @colors
       activeColorIndex: @activeColorIndex
 
+    @$('.js-datepicker').datepicker
+      todayHighlight: true
+      startDate: new Date().toLocaleDateString("en-US") # returns 9/25/2015
+      container: @$('.js-datepicker').parent()
+
   # for testing purposes the highlights get stored in localStorage
   loadHighlights: ->
     if highlights = localStorage['highlights']

app/assets/javascripts/app/lib/bootstrap/bootstrap-datepicker.js

@@ -0,0 +1,1944 @@
+/* =========================================================
+ * bootstrap-datepicker.js
+ * Repo: https://github.com/eternicode/bootstrap-datepicker/
+ * Demo: http://eternicode.github.io/bootstrap-datepicker/
+ * Docs: http://bootstrap-datepicker.readthedocs.org/
+ * Forked from http://www.eyecon.ro/bootstrap-datepicker
+ * =========================================================
+ * Started by Stefan Petre; improvements by Andrew Rowls + contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ========================================================= */
+
+ /*
+	
+	Zammad Edits:
+		- fix todayBtn toggle of display none and block: toggleClass instead
+		- [ICONS]: hardwire our icons
+
+ */
+
+(function(factory){
+    if (typeof define === "function" && define.amd) {
+        define(["jquery"], factory);
+    } else if (typeof exports === 'object') {
+        factory(require('jquery'));
+    } else {
+        factory(jQuery);
+    }
+}(function($, undefined){
+
+	function UTCDate(){
+		return new Date(Date.UTC.apply(Date, arguments));
+	}
+	function UTCToday(){
+		var today = new Date();
+		return UTCDate(today.getFullYear(), today.getMonth(), today.getDate());
+	}
+	function isUTCEquals(date1, date2) {
+		return (
+			date1.getUTCFullYear() === date2.getUTCFullYear() &&
+			date1.getUTCMonth() === date2.getUTCMonth() &&
+			date1.getUTCDate() === date2.getUTCDate()
+		);
+	}
+	function alias(method){
+		return function(){
+			return this[method].apply(this, arguments);
+		};
+	}
+	function isValidDate(d) {
+		return d && !isNaN(d.getTime());
+	}
+
+	var DateArray = (function(){
+		var extras = {
+			get: function(i){
+				return this.slice(i)[0];
+			},
+			contains: function(d){
+				// Array.indexOf is not cross-browser;
+				// $.inArray doesn't work with Dates
+				var val = d && d.valueOf();
+				for (var i=0, l=this.length; i < l; i++)
+					if (this[i].valueOf() === val)
+						return i;
+				return -1;
+			},
+			remove: function(i){
+				this.splice(i,1);
+			},
+			replace: function(new_array){
+				if (!new_array)
+					return;
+				if (!$.isArray(new_array))
+					new_array = [new_array];
+				this.clear();
+				this.push.apply(this, new_array);
+			},
+			clear: function(){
+				this.length = 0;
+			},
+			copy: function(){
+				var a = new DateArray();
+				a.replace(this);
+				return a;
+			}
+		};
+
+		return function(){
+			var a = [];
+			a.push.apply(a, arguments);
+			$.extend(a, extras);
+			return a;
+		};
+	})();
+
+
+	// Picker object
+
+	var Datepicker = function(element, options){
+		this._process_options(options);
+
+		this.dates = new DateArray();
+		this.viewDate = this.o.defaultViewDate;
+		this.focusDate = null;
+
+		this.element = $(element);
+		this.isInline = false;
+		this.isInput = this.element.is('input');
+		this.component = this.element.hasClass('date') ? this.element.find('.add-on, .input-group-addon, .btn') : false;
+		this.hasInput = this.component && this.element.find('input').length;
+		if (this.component && this.component.length === 0)
+			this.component = false;
+
+		this.picker = $(DPGlobal.template);
+		this._buildEvents();
+		this._attachEvents();
+
+		if (this.isInline){
+			this.picker.addClass('datepicker-inline').appendTo(this.element);
+		}
+		else {
+			this.picker.addClass('datepicker-dropdown dropdown-menu');
+		}
+
+		if (this.o.rtl){
+			this.picker.addClass('datepicker-rtl');
+		}
+
+		this.viewMode = this.o.startView;
+
+		if (this.o.calendarWeeks)
+			this.picker.find('tfoot .today, tfoot .clear')
+						.attr('colspan', function(i, val){
+							return parseInt(val) + 1;
+						});
+
+		this._allow_update = false;
+
+		this.setStartDate(this._o.startDate);
+		this.setEndDate(this._o.endDate);
+		this.setDaysOfWeekDisabled(this.o.daysOfWeekDisabled);
+		this.setDaysOfWeekHighlighted(this.o.daysOfWeekHighlighted);
+		this.setDatesDisabled(this.o.datesDisabled);
+
+		this.fillDow();
+		this.fillMonths();
+
+		this._allow_update = true;
+
+		this.update();
+		this.showMode();
+
+		if (this.isInline){
+			this.show();
+		}
+	};
+
+	Datepicker.prototype = {
+		constructor: Datepicker,
+
+		_process_options: function(opts){
+			// Store raw options for reference
+			this._o = $.extend({}, this._o, opts);
+			// Processed options
+			var o = this.o = $.extend({}, this._o);
+
+			// Check if "de-DE" style date is available, if not language should
+			// fallback to 2 letter code eg "de"
+			var lang = o.language;
+			if (!dates[lang]){
+				lang = lang.split('-')[0];
+				if (!dates[lang])
+					lang = defaults.language;
+			}
+			o.language = lang;
+
+			switch (o.startView){
+				case 2:
+				case 'decade':
+					o.startView = 2;
+					break;
+				case 1:
+				case 'year':
+					o.startView = 1;
+					break;
+				default:
+					o.startView = 0;
+			}
+
+			switch (o.minViewMode){
+				case 1:
+				case 'months':
+					o.minViewMode = 1;
+					break;
+				case 2:
+				case 'years':
+					o.minViewMode = 2;
+					break;
+				default:
+					o.minViewMode = 0;
+			}
+
+			switch (o.maxViewMode) {
+				case 0:
+				case 'days':
+					o.maxViewMode = 0;
+					break;
+				case 1:
+				case 'months':
+					o.maxViewMode = 1;
+					break;
+				default:
+					o.maxViewMode = 2;
+			}
+
+			o.startView = Math.min(o.startView, o.maxViewMode);
+			o.startView = Math.max(o.startView, o.minViewMode);
+
+			// true, false, or Number > 0
+			if (o.multidate !== true){
+				o.multidate = Number(o.multidate) || false;
+				if (o.multidate !== false)
+					o.multidate = Math.max(0, o.multidate);
+			}
+			o.multidateSeparator = String(o.multidateSeparator);
+
+			o.weekStart %= 7;
+			o.weekEnd = ((o.weekStart + 6) % 7);
+
+			var format = DPGlobal.parseFormat(o.format);
+			if (o.startDate !== -Infinity){
+				if (!!o.startDate){
+					if (o.startDate instanceof Date)
+						o.startDate = this._local_to_utc(this._zero_time(o.startDate));
+					else
+						o.startDate = DPGlobal.parseDate(o.startDate, format, o.language);
+				}
+				else {
+					o.startDate = -Infinity;
+				}
+			}
+			if (o.endDate !== Infinity){
+				if (!!o.endDate){
+					if (o.endDate instanceof Date)
+						o.endDate = this._local_to_utc(this._zero_time(o.endDate));
+					else
+						o.endDate = DPGlobal.parseDate(o.endDate, format, o.language);
+				}
+				else {
+					o.endDate = Infinity;
+				}
+			}
+
+			o.daysOfWeekDisabled = o.daysOfWeekDisabled||[];
+			if (!$.isArray(o.daysOfWeekDisabled))
+				o.daysOfWeekDisabled = o.daysOfWeekDisabled.split(/[,\s]*/);
+			o.daysOfWeekDisabled = $.map(o.daysOfWeekDisabled, function(d){
+				return parseInt(d, 10);
+			});
+
+			o.daysOfWeekHighlighted = o.daysOfWeekHighlighted||[];
+			if (!$.isArray(o.daysOfWeekHighlighted))
+				o.daysOfWeekHighlighted = o.daysOfWeekHighlighted.split(/[,\s]*/);
+			o.daysOfWeekHighlighted = $.map(o.daysOfWeekHighlighted, function(d){
+				return parseInt(d, 10);
+			});
+
+			o.datesDisabled = o.datesDisabled||[];
+			if (!$.isArray(o.datesDisabled)) {
+				var datesDisabled = [];
+				datesDisabled.push(DPGlobal.parseDate(o.datesDisabled, format, o.language));
+				o.datesDisabled = datesDisabled;
+			}
+			o.datesDisabled = $.map(o.datesDisabled,function(d){
+				return DPGlobal.parseDate(d, format, o.language);
+			});
+
+			var plc = String(o.orientation).toLowerCase().split(/\s+/g),
+				_plc = o.orientation.toLowerCase();
+			plc = $.grep(plc, function(word){
+				return /^auto|left|right|top|bottom$/.test(word);
+			});
+			o.orientation = {x: 'auto', y: 'auto'};
+			if (!_plc || _plc === 'auto')
+				; // no action
+			else if (plc.length === 1){
+				switch (plc[0]){
+					case 'top':
+					case 'bottom':
+						o.orientation.y = plc[0];
+						break;
+					case 'left':
+					case 'right':
+						o.orientation.x = plc[0];
+						break;
+				}
+			}
+			else {
+				_plc = $.grep(plc, function(word){
+					return /^left|right$/.test(word);
+				});
+				o.orientation.x = _plc[0] || 'auto';
+
+				_plc = $.grep(plc, function(word){
+					return /^top|bottom$/.test(word);
+				});
+				o.orientation.y = _plc[0] || 'auto';
+			}
+			if (o.defaultViewDate) {
+				var year = o.defaultViewDate.year || new Date().getFullYear();
+				var month = o.defaultViewDate.month || 0;
+				var day = o.defaultViewDate.day || 1;
+				o.defaultViewDate = UTCDate(year, month, day);
+			} else {
+				o.defaultViewDate = UTCToday();
+			}
+			o.showOnFocus = o.showOnFocus !== undefined ? o.showOnFocus : true;
+			o.zIndexOffset = o.zIndexOffset !== undefined ? o.zIndexOffset : 10;
+		},
+		_events: [],
+		_secondaryEvents: [],
+		_applyEvents: function(evs){
+			for (var i=0, el, ch, ev; i < evs.length; i++){
+				el = evs[i][0];
+				if (evs[i].length === 2){
+					ch = undefined;
+					ev = evs[i][1];
+				}
+				else if (evs[i].length === 3){
+					ch = evs[i][1];
+					ev = evs[i][2];
+				}
+				el.on(ev, ch);
+			}
+		},
+		_unapplyEvents: function(evs){
+			for (var i=0, el, ev, ch; i < evs.length; i++){
+				el = evs[i][0];
+				if (evs[i].length === 2){
+					ch = undefined;
+					ev = evs[i][1];
+				}
+				else if (evs[i].length === 3){
+					ch = evs[i][1];
+					ev = evs[i][2];
+				}
+				el.off(ev, ch);
+			}
+		},
+		_buildEvents: function(){
+            var events = {
+                keyup: $.proxy(function(e){
+                    if ($.inArray(e.keyCode, [27, 37, 39, 38, 40, 32, 13, 9]) === -1)
+                        this.update();
+                }, this),
+                keydown: $.proxy(this.keydown, this),
+                paste: $.proxy(this.paste, this)
+            };
+
+            if (this.o.showOnFocus === true) {
+                events.focus = $.proxy(this.show, this);
+            }
+
+            if (this.isInput) { // single input
+                this._events = [
+                    [this.element, events]
+                ];
+            }
+            else if (this.component && this.hasInput) { // component: input + button
+                this._events = [
+                    // For components that are not readonly, allow keyboard nav
+                    [this.element.find('input'), events],
+                    [this.component, {
+                        click: $.proxy(this.show, this)
+                    }]
+                ];
+            }
+			else if (this.element.is('div')){  // inline datepicker
+				this.isInline = true;
+			}
+			else {
+				this._events = [
+					[this.element, {
+						click: $.proxy(this.show, this)
+					}]
+				];
+			}
+			this._events.push(
+				// Component: listen for blur on element descendants
+				[this.element, '*', {
+					blur: $.proxy(function(e){
+						this._focused_from = e.target;
+					}, this)
+				}],
+				// Input: listen for blur on element
+				[this.element, {
+					blur: $.proxy(function(e){
+						this._focused_from = e.target;
+					}, this)
+				}]
+			);
+
+			if (this.o.immediateUpdates) {
+				// Trigger input updates immediately on changed year/month
+				this._events.push([this.element, {
+					'changeYear changeMonth': $.proxy(function(e){
+						this.update(e.date);
+					}, this)
+				}]);
+			}
+
+			this._secondaryEvents = [
+				[this.picker, {
+					click: $.proxy(this.click, this)
+				}],
+				[$(window), {
+					resize: $.proxy(this.place, this)
+				}],
+				[$(document), {
+					mousedown: $.proxy(function(e){
+						// Clicked outside the datepicker, hide it
+						if (!(
+							this.element.is(e.target) ||
+							this.element.find(e.target).length ||
+							this.picker.is(e.target) ||
+							this.picker.find(e.target).length ||
+							this.picker.hasClass('datepicker-inline')
+						)){
+							this.hide();
+						}
+					}, this)
+				}]
+			];
+		},
+		_attachEvents: function(){
+			this._detachEvents();
+			this._applyEvents(this._events);
+		},
+		_detachEvents: function(){
+			this._unapplyEvents(this._events);
+		},
+		_attachSecondaryEvents: function(){
+			this._detachSecondaryEvents();
+			this._applyEvents(this._secondaryEvents);
+		},
+		_detachSecondaryEvents: function(){
+			this._unapplyEvents(this._secondaryEvents);
+		},
+		_trigger: function(event, altdate){
+			var date = altdate || this.dates.get(-1),
+				local_date = this._utc_to_local(date);
+
+			this.element.trigger({
+				type: event,
+				date: local_date,
+				dates: $.map(this.dates, this._utc_to_local),
+				format: $.proxy(function(ix, format){
+					if (arguments.length === 0){
+						ix = this.dates.length - 1;
+						format = this.o.format;
+					}
+					else if (typeof ix === 'string'){
+						format = ix;
+						ix = this.dates.length - 1;
+					}
+					format = format || this.o.format;
+					var date = this.dates.get(ix);
+					return DPGlobal.formatDate(date, format, this.o.language);
+				}, this)
+			});
+		},
+
+		show: function(){
+			if (this.element.attr('readonly') && this.o.enableOnReadonly === false)
+				return;
+			if (!this.isInline)
+				this.picker.appendTo(this.o.container);
+			this.place();
+			this.picker.show();
+			this._attachSecondaryEvents();
+			this._trigger('show');
+			if ((window.navigator.msMaxTouchPoints || 'ontouchstart' in document) && this.o.disableTouchKeyboard) {
+				$(this.element).blur();
+			}
+			return this;
+		},
+
+		hide: function(){
+			if (this.isInline)
+				return this;
+			if (!this.picker.is(':visible'))
+				return this;
+			this.focusDate = null;
+			this.picker.hide().detach();
+			this._detachSecondaryEvents();
+			this.viewMode = this.o.startView;
+			this.showMode();
+
+			if (
+				this.o.forceParse &&
+				(
+					this.isInput && this.element.val() ||
+					this.hasInput && this.element.find('input').val()
+				)
+			)
+				this.setValue();
+			this._trigger('hide');
+			return this;
+		},
+
+		remove: function(){
+			this.hide();
+			this._detachEvents();
+			this._detachSecondaryEvents();
+			this.picker.remove();
+			delete this.element.data().datepicker;
+			if (!this.isInput){
+				delete this.element.data().date;
+			}
+			return this;
+		},
+
+		paste: function(evt){
+			var dateString;
+			if (evt.originalEvent.clipboardData && evt.originalEvent.clipboardData.types
+				&& $.inArray('text/plain', evt.originalEvent.clipboardData.types) !== -1) {
+				dateString = evt.originalEvent.clipboardData.getData('text/plain');
+			}
+			else if (window.clipboardData) {
+				dateString = window.clipboardData.getData('Text');
+			}
+			else {
+				return;
+			}
+			this.setDate(dateString);
+			this.update();
+			evt.preventDefault();
+		},
+
+		_utc_to_local: function(utc){
+			return utc && new Date(utc.getTime() + (utc.getTimezoneOffset()*60000));
+		},
+		_local_to_utc: function(local){
+			return local && new Date(local.getTime() - (local.getTimezoneOffset()*60000));
+		},
+		_zero_time: function(local){
+			return local && new Date(local.getFullYear(), local.getMonth(), local.getDate());
+		},
+		_zero_utc_time: function(utc){
+			return utc && new Date(Date.UTC(utc.getUTCFullYear(), utc.getUTCMonth(), utc.getUTCDate()));
+		},
+
+		getDates: function(){
+			return $.map(this.dates, this._utc_to_local);
+		},
+
+		getUTCDates: function(){
+			return $.map(this.dates, function(d){
+				return new Date(d);
+			});
+		},
+
+		getDate: function(){
+			return this._utc_to_local(this.getUTCDate());
+		},
+
+		getUTCDate: function(){
+			var selected_date = this.dates.get(-1);
+			if (typeof selected_date !== 'undefined') {
+				return new Date(selected_date);
+			} else {
+				return null;
+			}
+		},
+
+		clearDates: function(){
+			var element;
+			if (this.isInput) {
+				element = this.element;
+			} else if (this.component) {
+				element = this.element.find('input');
+			}
+
+			if (element) {
+				element.val('');
+			}
+
+			this.update();
+			this._trigger('changeDate');
+
+			if (this.o.autoclose) {
+				this.hide();
+			}
+		},
+		setDates: function(){
+			var args = $.isArray(arguments[0]) ? arguments[0] : arguments;
+			this.update.apply(this, args);
+			this._trigger('changeDate');
+			this.setValue();
+			return this;
+		},
+
+		setUTCDates: function(){
+			var args = $.isArray(arguments[0]) ? arguments[0] : arguments;
+			this.update.apply(this, $.map(args, this._utc_to_local));
+			this._trigger('changeDate');
+			this.setValue();
+			return this;
+		},
+
+		setDate: alias('setDates'),
+		setUTCDate: alias('setUTCDates'),
+
+		setValue: function(){
+			var formatted = this.getFormattedDate();
+			if (!this.isInput){
+				if (this.component){
+					this.element.find('input').val(formatted);
+				}
+			}
+			else {
+				this.element.val(formatted);
+			}
+			return this;
+		},
+
+		getFormattedDate: function(format){
+			if (format === undefined)
+				format = this.o.format;
+
+			var lang = this.o.language;
+			return $.map(this.dates, function(d){
+				return DPGlobal.formatDate(d, format, lang);
+			}).join(this.o.multidateSeparator);
+		},
+
+		setStartDate: function(startDate){
+			this._process_options({startDate: startDate});
+			this.update();
+			this.updateNavArrows();
+			return this;
+		},
+
+		setEndDate: function(endDate){
+			this._process_options({endDate: endDate});
+			this.update();
+			this.updateNavArrows();
+			return this;
+		},
+
+		setDaysOfWeekDisabled: function(daysOfWeekDisabled){
+			this._process_options({daysOfWeekDisabled: daysOfWeekDisabled});
+			this.update();
+			this.updateNavArrows();
+			return this;
+		},
+
+		setDaysOfWeekHighlighted: function(daysOfWeekHighlighted){
+			this._process_options({daysOfWeekHighlighted: daysOfWeekHighlighted});
+			this.update();
+			return this;
+		},
+
+		setDatesDisabled: function(datesDisabled){
+			this._process_options({datesDisabled: datesDisabled});
+			this.update();
+			this.updateNavArrows();
+		},
+
+		place: function(){
+			if (this.isInline)
+				return this;
+			var calendarWidth = this.picker.outerWidth(),
+				calendarHeight = this.picker.outerHeight(),
+				visualPadding = 10,
+				container = $(this.o.container),
+				windowWidth = container.width(),
+				scrollTop = container.scrollTop(),
+				appendOffset = container.offset();
+
+			var parentsZindex = [];
+			this.element.parents().each(function(){
+				var itemZIndex = $(this).css('z-index');
+				if (itemZIndex !== 'auto' && itemZIndex !== 0) parentsZindex.push(parseInt(itemZIndex));
+			});
+			var zIndex = Math.max.apply(Math, parentsZindex) + this.o.zIndexOffset;
+			var offset = this.component ? this.component.parent().offset() : this.element.offset();
+			var height = this.component ? this.component.outerHeight(true) : this.element.outerHeight(false);
+			var width = this.component ? this.component.outerWidth(true) : this.element.outerWidth(false);
+			var left = offset.left - appendOffset.left,
+				top = offset.top - appendOffset.top;
+
+			this.picker.removeClass(
+				'datepicker-orient-top datepicker-orient-bottom '+
+				'datepicker-orient-right datepicker-orient-left'
+			);
+
+			if (this.o.orientation.x !== 'auto'){
+				this.picker.addClass('datepicker-orient-' + this.o.orientation.x);
+				if (this.o.orientation.x === 'right')
+					left -= calendarWidth - width;
+			}
+			// auto x orientation is best-placement: if it crosses a window
+			// edge, fudge it sideways
+			else {
+				if (offset.left < 0) {
+					// component is outside the window on the left side. Move it into visible range
+					this.picker.addClass('datepicker-orient-left');
+					left -= offset.left - visualPadding;
+				} else if (left + calendarWidth > windowWidth) {
+					// the calendar passes the widow right edge. Align it to component right side
+					this.picker.addClass('datepicker-orient-right');
+					left = offset.left + width - calendarWidth;
+				} else {
+					// Default to left
+					this.picker.addClass('datepicker-orient-left');
+				}
+			}
+
+			// auto y orientation is best-situation: top or bottom, no fudging,
+			// decision based on which shows more of the calendar
+			var yorient = this.o.orientation.y,
+				top_overflow;
+			if (yorient === 'auto'){
+				top_overflow = -scrollTop + top - calendarHeight;
+				yorient = top_overflow < 0 ? 'bottom' : 'top';
+			}
+
+			this.picker.addClass('datepicker-orient-' + yorient);
+			if (yorient === 'top')
+				top -= calendarHeight + parseInt(this.picker.css('padding-top'));
+			else
+				top += height;
+
+			if (this.o.rtl) {
+				var right = windowWidth - (left + width);
+				this.picker.css({
+					top: top,
+					right: right,
+					zIndex: zIndex
+				});
+			} else {
+				this.picker.css({
+					top: top,
+					left: left,
+					zIndex: zIndex
+				});
+			}
+			return this;
+		},
+
+		_allow_update: true,
+		update: function(){
+			if (!this._allow_update)
+				return this;
+
+			var oldDates = this.dates.copy(),
+				dates = [],
+				fromArgs = false;
+			if (arguments.length){
+				$.each(arguments, $.proxy(function(i, date){
+					if (date instanceof Date)
+						date = this._local_to_utc(date);
+					dates.push(date);
+				}, this));
+				fromArgs = true;
+			}
+			else {
+				dates = this.isInput
+						? this.element.val()
+						: this.element.data('date') || this.element.find('input').val();
+				if (dates && this.o.multidate)
+					dates = dates.split(this.o.multidateSeparator);
+				else
+					dates = [dates];
+				delete this.element.data().date;
+			}
+
+			dates = $.map(dates, $.proxy(function(date){
+				return DPGlobal.parseDate(date, this.o.format, this.o.language);
+			}, this));
+			dates = $.grep(dates, $.proxy(function(date){
+				return (
+					date < this.o.startDate ||
+					date > this.o.endDate ||
+					!date
+				);
+			}, this), true);
+			this.dates.replace(dates);
+
+			if (this.dates.length)
+				this.viewDate = new Date(this.dates.get(-1));
+			else if (this.viewDate < this.o.startDate)
+				this.viewDate = new Date(this.o.startDate);
+			else if (this.viewDate > this.o.endDate)
+				this.viewDate = new Date(this.o.endDate);
+			else
+				this.viewDate = this.o.defaultViewDate;
+
+			if (fromArgs){
+				// setting date by clicking
+				this.setValue();
+			}
+			else if (dates.length){
+				// setting date by typing
+				if (String(oldDates) !== String(this.dates))
+					this._trigger('changeDate');
+			}
+			if (!this.dates.length && oldDates.length)
+				this._trigger('clearDate');
+
+			this.fill();
+			this.element.change();
+			return this;
+		},
+
+		fillDow: function(){
+			var dowCnt = this.o.weekStart,
+				html = '<tr>';
+			if (this.o.calendarWeeks){
+				this.picker.find('.datepicker-days .datepicker-switch')
+					.attr('colspan', function(i, val){
+						return parseInt(val) + 1;
+					});
+				html += '<th class="cw">&#160;</th>';
+			}
+			while (dowCnt < this.o.weekStart + 7){
+				html += '<th class="dow">'+dates[this.o.language].daysMin[(dowCnt++)%7]+'</th>';
+			}
+			html += '</tr>';
+			this.picker.find('.datepicker-days thead').append(html);
+		},
+
+		fillMonths: function(){
+			var html = '',
+			i = 0;
+			while (i < 12){
+				html += '<span class="month">'+dates[this.o.language].monthsShort[i++]+'</span>';
+			}
+			this.picker.find('.datepicker-months td').html(html);
+		},
+
+		setRange: function(range){
+			if (!range || !range.length)
+				delete this.range;
+			else
+				this.range = $.map(range, function(d){
+					return d.valueOf();
+				});
+			this.fill();
+		},
+
+		getClassNames: function(date){
+			var cls = [],
+				year = this.viewDate.getUTCFullYear(),
+				month = this.viewDate.getUTCMonth(),
+				today = new Date();
+			if (date.getUTCFullYear() < year || (date.getUTCFullYear() === year && date.getUTCMonth() < month)){
+				cls.push('old');
+			}
+			else if (date.getUTCFullYear() > year || (date.getUTCFullYear() === year && date.getUTCMonth() > month)){
+				cls.push('new');
+			}
+			if (this.focusDate && date.valueOf() === this.focusDate.valueOf())
+				cls.push('focused');
+			// Compare internal UTC date with local today, not UTC today
+			if (this.o.todayHighlight &&
+				date.getUTCFullYear() === today.getFullYear() &&
+				date.getUTCMonth() === today.getMonth() &&
+				date.getUTCDate() === today.getDate()){
+				cls.push('today');
+			}
+			if (this.dates.contains(date) !== -1)
+				cls.push('active');
+			if (date.valueOf() < this.o.startDate || date.valueOf() > this.o.endDate ||
+				$.inArray(date.getUTCDay(), this.o.daysOfWeekDisabled) !== -1){
+				cls.push('disabled');
+			}
+			if ($.inArray(date.getUTCDay(), this.o.daysOfWeekHighlighted) !== -1){
+				cls.push('highlighted');
+			}
+			if (this.o.datesDisabled.length > 0 &&
+				$.grep(this.o.datesDisabled, function(d){
+					return isUTCEquals(date, d); }).length > 0) {
+				cls.push('disabled', 'disabled-date');
+			}
+
+			if (this.range){
+				if (date > this.range[0] && date < this.range[this.range.length-1]){
+					cls.push('range');
+				}
+				if ($.inArray(date.valueOf(), this.range) !== -1){
+					cls.push('selected');
+				}
+				if (date.valueOf() === this.range[0]){
+          cls.push('range-start');
+        }
+        if (date.valueOf() === this.range[this.range.length-1]){
+          cls.push('range-end');
+        }
+			}
+			return cls;
+		},
+
+		fill: function(){
+			var d = new Date(this.viewDate),
+				year = d.getUTCFullYear(),
+				month = d.getUTCMonth(),
+				startYear = this.o.startDate !== -Infinity ? this.o.startDate.getUTCFullYear() : -Infinity,
+				startMonth = this.o.startDate !== -Infinity ? this.o.startDate.getUTCMonth() : -Infinity,
+				endYear = this.o.endDate !== Infinity ? this.o.endDate.getUTCFullYear() : Infinity,
+				endMonth = this.o.endDate !== Infinity ? this.o.endDate.getUTCMonth() : Infinity,
+				todaytxt = dates[this.o.language].today || dates['en'].today || '',
+				cleartxt = dates[this.o.language].clear || dates['en'].clear || '',
+				titleFormat = dates[this.o.language].titleFormat || dates['en'].titleFormat,
+				tooltip;
+			if (isNaN(year) || isNaN(month))
+				return;
+			this.picker.find('.datepicker-days thead .datepicker-switch')
+						.text(DPGlobal.formatDate(new UTCDate(year, month), titleFormat, this.o.language));
+			this.picker.find('tfoot .today')
+						.text(todaytxt)
+						.toggleClass('hidden', this.o.todayBtn == false);
+			this.picker.find('tfoot .clear')
+						.text(cleartxt)
+						.toggle(this.o.clearBtn !== false);
+			this.picker.find('thead .datepicker-title')
+						.text(this.o.title)
+						.toggle(this.o.title !== '');
+			this.updateNavArrows();
+			this.fillMonths();
+			var prevMonth = UTCDate(year, month-1, 28),
+				day = DPGlobal.getDaysInMonth(prevMonth.getUTCFullYear(), prevMonth.getUTCMonth());
+			prevMonth.setUTCDate(day);
+			prevMonth.setUTCDate(day - (prevMonth.getUTCDay() - this.o.weekStart + 7)%7);
+			var nextMonth = new Date(prevMonth);
+			if (prevMonth.getUTCFullYear() < 100){
+        nextMonth.setUTCFullYear(prevMonth.getUTCFullYear());
+      }
+			nextMonth.setUTCDate(nextMonth.getUTCDate() + 42);
+			nextMonth = nextMonth.valueOf();
+			var html = [];
+			var clsName;
+			while (prevMonth.valueOf() < nextMonth){
+				if (prevMonth.getUTCDay() === this.o.weekStart){
+					html.push('<tr>');
+					if (this.o.calendarWeeks){
+						// ISO 8601: First week contains first thursday.
+						// ISO also states week starts on Monday, but we can be more abstract here.
+						var
+							// Start of current week: based on weekstart/current date
+							ws = new Date(+prevMonth + (this.o.weekStart - prevMonth.getUTCDay() - 7) % 7 * 864e5),
+							// Thursday of this week
+							th = new Date(Number(ws) + (7 + 4 - ws.getUTCDay()) % 7 * 864e5),
+							// First Thursday of year, year from thursday
+							yth = new Date(Number(yth = UTCDate(th.getUTCFullYear(), 0, 1)) + (7 + 4 - yth.getUTCDay())%7*864e5),
+							// Calendar week: ms between thursdays, div ms per day, div 7 days
+							calWeek =  (th - yth) / 864e5 / 7 + 1;
+						html.push('<td class="cw">'+ calWeek +'</td>');
+
+					}
+				}
+				clsName = this.getClassNames(prevMonth);
+				clsName.push('day');
+
+				if (this.o.beforeShowDay !== $.noop){
+					var before = this.o.beforeShowDay(this._utc_to_local(prevMonth));
+					if (before === undefined)
+						before = {};
+					else if (typeof(before) === 'boolean')
+						before = {enabled: before};
+					else if (typeof(before) === 'string')
+						before = {classes: before};
+					if (before.enabled === false)
+						clsName.push('disabled');
+					if (before.classes)
+						clsName = clsName.concat(before.classes.split(/\s+/));
+					if (before.tooltip)
+						tooltip = before.tooltip;
+				}
+
+				clsName = $.unique(clsName);
+				html.push('<td class="'+clsName.join(' ')+'"' + (tooltip ? ' title="'+tooltip+'"' : '') + '>'+prevMonth.getUTCDate() + '</td>');
+				tooltip = null;
+				if (prevMonth.getUTCDay() === this.o.weekEnd){
+					html.push('</tr>');
+				}
+				prevMonth.setUTCDate(prevMonth.getUTCDate()+1);
+			}
+			this.picker.find('.datepicker-days tbody').empty().append(html.join(''));
+
+			var months = this.picker.find('.datepicker-months')
+						.find('.datepicker-switch')
+							.text(this.o.maxViewMode < 2 ? 'Months' : year)
+							.end()
+						.find('span').removeClass('active');
+
+			$.each(this.dates, function(i, d){
+				if (d.getUTCFullYear() === year)
+					months.eq(d.getUTCMonth()).addClass('active');
+			});
+
+			if (year < startYear || year > endYear){
+				months.addClass('disabled');
+			}
+			if (year === startYear){
+				months.slice(0, startMonth).addClass('disabled');
+			}
+			if (year === endYear){
+				months.slice(endMonth+1).addClass('disabled');
+			}
+
+			if (this.o.beforeShowMonth !== $.noop){
+				var that = this;
+				$.each(months, function(i, month){
+					if (!$(month).hasClass('disabled')) {
+						var moDate = new Date(year, i, 1);
+						var before = that.o.beforeShowMonth(moDate);
+						if (before === false)
+							$(month).addClass('disabled');
+					}
+				});
+			}
+
+			html = '';
+			year = parseInt(year/10, 10) * 10;
+			var yearCont = this.picker.find('.datepicker-years')
+								.find('.datepicker-switch')
+									.text(year + '-' + (year + 9))
+									.end()
+								.find('td');
+			year -= 1;
+			var years = $.map(this.dates, function(d){
+					return d.getUTCFullYear();
+				}),
+				classes;
+			for (var i = -1; i < 11; i++){
+				classes = ['year'];
+				tooltip = null;
+
+				if (i === -1)
+					classes.push('old');
+				else if (i === 10)
+					classes.push('new');
+				if ($.inArray(year, years) !== -1)
+					classes.push('active');
+				if (year < startYear || year > endYear)
+					classes.push('disabled');
+
+				if (this.o.beforeShowYear !== $.noop) {
+					var yrBefore = this.o.beforeShowYear(new Date(year, 0, 1));
+					if (yrBefore === undefined)
+						yrBefore = {};
+					else if (typeof(yrBefore) === 'boolean')
+						yrBefore = {enabled: yrBefore};
+					else if (typeof(yrBefore) === 'string')
+						yrBefore = {classes: yrBefore};
+					if (yrBefore.enabled === false)
+						classes.push('disabled');
+					if (yrBefore.classes)
+						classes = classes.concat(yrBefore.classes.split(/\s+/));
+					if (yrBefore.tooltip)
+						tooltip = yrBefore.tooltip;
+				}
+
+				html += '<span class="' + classes.join(' ') + '"' + (tooltip ? ' title="'+tooltip+'"' : '') + '>' + year + '</span>';
+				year += 1;
+			}
+			yearCont.html(html);
+		},
+
+		updateNavArrows: function(){
+			if (!this._allow_update)
+				return;
+
+			var d = new Date(this.viewDate),
+				year = d.getUTCFullYear(),
+				month = d.getUTCMonth();
+			switch (this.viewMode){
+				case 0:
+					if (this.o.startDate !== -Infinity && year <= this.o.startDate.getUTCFullYear() && month <= this.o.startDate.getUTCMonth()){
+						this.picker.find('.prev').css({visibility: 'hidden'});
+					}
+					else {
+						this.picker.find('.prev').css({visibility: 'visible'});
+					}
+					if (this.o.endDate !== Infinity && year >= this.o.endDate.getUTCFullYear() && month >= this.o.endDate.getUTCMonth()){
+						this.picker.find('.next').css({visibility: 'hidden'});
+					}
+					else {
+						this.picker.find('.next').css({visibility: 'visible'});
+					}
+					break;
+				case 1:
+				case 2:
+					if (this.o.startDate !== -Infinity && year <= this.o.startDate.getUTCFullYear() || this.o.maxViewMode < 2){
+						this.picker.find('.prev').css({visibility: 'hidden'});
+					}
+					else {
+						this.picker.find('.prev').css({visibility: 'visible'});
+					}
+					if (this.o.endDate !== Infinity && year >= this.o.endDate.getUTCFullYear() || this.o.maxViewMode < 2){
+						this.picker.find('.next').css({visibility: 'hidden'});
+					}
+					else {
+						this.picker.find('.next').css({visibility: 'visible'});
+					}
+					break;
+			}
+		},
+
+		click: function(e){
+			e.preventDefault();
+			e.stopPropagation();
+			var target = $(e.target).closest('span, td, th'),
+				year, month, day;
+			if (target.length === 1){
+				switch (target[0].nodeName.toLowerCase()){
+					case 'th':
+						switch (target[0].className){
+							case 'datepicker-switch':
+								this.showMode(1);
+								break;
+							case 'prev':
+							case 'next':
+								var dir = DPGlobal.modes[this.viewMode].navStep * (target[0].className === 'prev' ? -1 : 1);
+								switch (this.viewMode){
+									case 0:
+										this.viewDate = this.moveMonth(this.viewDate, dir);
+										this._trigger('changeMonth', this.viewDate);
+										break;
+									case 1:
+									case 2:
+										this.viewDate = this.moveYear(this.viewDate, dir);
+										if (this.viewMode === 1)
+											this._trigger('changeYear', this.viewDate);
+										break;
+								}
+								this.fill();
+								break;
+							case 'today':
+								var date = new Date();
+								date = UTCDate(date.getFullYear(), date.getMonth(), date.getDate(), 0, 0, 0);
+
+								this.showMode(-2);
+								var which = this.o.todayBtn === 'linked' ? null : 'view';
+								this._setDate(date, which);
+								break;
+							case 'clear':
+								this.clearDates();
+								break;
+						}
+						break;
+					case 'span':
+						if (!target.hasClass('disabled')){
+							this.viewDate.setUTCDate(1);
+							if (target.hasClass('month')){
+								day = 1;
+								month = target.parent().find('span').index(target);
+								year = this.viewDate.getUTCFullYear();
+								this.viewDate.setUTCMonth(month);
+								this._trigger('changeMonth', this.viewDate);
+								if (this.o.minViewMode === 1){
+									this._setDate(UTCDate(year, month, day));
+									this.showMode();
+								} else {
+									this.showMode(-1);
+								}
+							}
+							else {
+								day = 1;
+								month = 0;
+								year = parseInt(target.text(), 10)||0;
+								this.viewDate.setUTCFullYear(year);
+								this._trigger('changeYear', this.viewDate);
+								if (this.o.minViewMode === 2){
+									this._setDate(UTCDate(year, month, day));
+								}
+								this.showMode(-1);
+							}
+							this.fill();
+						}
+						break;
+					case 'td':
+						if (target.hasClass('day') && !target.hasClass('disabled')){
+							day = parseInt(target.text(), 10)||1;
+							year = this.viewDate.getUTCFullYear();
+							month = this.viewDate.getUTCMonth();
+							if (target.hasClass('old')){
+								if (month === 0){
+									month = 11;
+									year -= 1;
+								}
+								else {
+									month -= 1;
+								}
+							}
+							else if (target.hasClass('new')){
+								if (month === 11){
+									month = 0;
+									year += 1;
+								}
+								else {
+									month += 1;
+								}
+							}
+							this._setDate(UTCDate(year, month, day));
+						}
+						break;
+				}
+			}
+			if (this.picker.is(':visible') && this._focused_from){
+				$(this._focused_from).focus();
+			}
+			delete this._focused_from;
+		},
+
+		_toggle_multidate: function(date){
+			var ix = this.dates.contains(date);
+			if (!date){
+				this.dates.clear();
+			}
+
+			if (ix !== -1){
+				if (this.o.multidate === true || this.o.multidate > 1 || this.o.toggleActive){
+					this.dates.remove(ix);
+				}
+			} else if (this.o.multidate === false) {
+				this.dates.clear();
+				this.dates.push(date);
+			}
+			else {
+				this.dates.push(date);
+			}
+
+			if (typeof this.o.multidate === 'number')
+				while (this.dates.length > this.o.multidate)
+					this.dates.remove(0);
+		},
+
+		_setDate: function(date, which){
+			if (!which || which === 'date')
+				this._toggle_multidate(date && new Date(date));
+			if (!which || which  === 'view')
+				this.viewDate = date && new Date(date);
+
+			this.fill();
+			this.setValue();
+			if (!which || which  !== 'view') {
+				this._trigger('changeDate');
+			}
+			var element;
+			if (this.isInput){
+				element = this.element;
+			}
+			else if (this.component){
+				element = this.element.find('input');
+			}
+			if (element){
+				element.change();
+			}
+			if (this.o.autoclose && (!which || which === 'date')){
+				this.hide();
+			}
+		},
+
+		moveMonth: function(date, dir){
+			if (!isValidDate(date))
+				return this.o.defaultViewDate;
+			if (!dir)
+				return date;
+			var new_date = new Date(date.valueOf()),
+				day = new_date.getUTCDate(),
+				month = new_date.getUTCMonth(),
+				mag = Math.abs(dir),
+				new_month, test;
+			dir = dir > 0 ? 1 : -1;
+			if (mag === 1){
+				test = dir === -1
+					// If going back one month, make sure month is not current month
+					// (eg, Mar 31 -> Feb 31 == Feb 28, not Mar 02)
+					? function(){
+						return new_date.getUTCMonth() === month;
+					}
+					// If going forward one month, make sure month is as expected
+					// (eg, Jan 31 -> Feb 31 == Feb 28, not Mar 02)
+					: function(){
+						return new_date.getUTCMonth() !== new_month;
+					};
+				new_month = month + dir;
+				new_date.setUTCMonth(new_month);
+				// Dec -> Jan (12) or Jan -> Dec (-1) -- limit expected date to 0-11
+				if (new_month < 0 || new_month > 11)
+					new_month = (new_month + 12) % 12;
+			}
+			else {
+				// For magnitudes >1, move one month at a time...
+				for (var i=0; i < mag; i++)
+					// ...which might decrease the day (eg, Jan 31 to Feb 28, etc)...
+					new_date = this.moveMonth(new_date, dir);
+				// ...then reset the day, keeping it in the new month
+				new_month = new_date.getUTCMonth();
+				new_date.setUTCDate(day);
+				test = function(){
+					return new_month !== new_date.getUTCMonth();
+				};
+			}
+			// Common date-resetting loop -- if date is beyond end of month, make it
+			// end of month
+			while (test()){
+				new_date.setUTCDate(--day);
+				new_date.setUTCMonth(new_month);
+			}
+			return new_date;
+		},
+
+		moveYear: function(date, dir){
+			return this.moveMonth(date, dir*12);
+		},
+
+		dateWithinRange: function(date){
+			return date >= this.o.startDate && date <= this.o.endDate;
+		},
+
+		keydown: function(e){
+			if (!this.picker.is(':visible')){
+				if (e.keyCode === 40 || e.keyCode === 27) { // allow down to re-show picker
+					this.show();
+					e.stopPropagation();
+        }
+				return;
+			}
+			var dateChanged = false,
+				dir, newDate, newViewDate,
+				focusDate = this.focusDate || this.viewDate;
+			switch (e.keyCode){
+				case 27: // escape
+					if (this.focusDate){
+						this.focusDate = null;
+						this.viewDate = this.dates.get(-1) || this.viewDate;
+						this.fill();
+					}
+					else
+						this.hide();
+					e.preventDefault();
+					e.stopPropagation();
+					break;
+				case 37: // left
+				case 39: // right
+					if (!this.o.keyboardNavigation)
+						break;
+					dir = e.keyCode === 37 ? -1 : 1;
+					if (e.ctrlKey){
+						newDate = this.moveYear(this.dates.get(-1) || UTCToday(), dir);
+						newViewDate = this.moveYear(focusDate, dir);
+						this._trigger('changeYear', this.viewDate);
+					}
+					else if (e.shiftKey){
+						newDate = this.moveMonth(this.dates.get(-1) || UTCToday(), dir);
+						newViewDate = this.moveMonth(focusDate, dir);
+						this._trigger('changeMonth', this.viewDate);
+					}
+					else {
+						newDate = new Date(this.dates.get(-1) || UTCToday());
+						newDate.setUTCDate(newDate.getUTCDate() + dir);
+						newViewDate = new Date(focusDate);
+						newViewDate.setUTCDate(focusDate.getUTCDate() + dir);
+					}
+					if (this.dateWithinRange(newViewDate)){
+						this.focusDate = this.viewDate = newViewDate;
+						this.setValue();
+						this.fill();
+						e.preventDefault();
+					}
+					break;
+				case 38: // up
+				case 40: // down
+					if (!this.o.keyboardNavigation)
+						break;
+					dir = e.keyCode === 38 ? -1 : 1;
+					if (e.ctrlKey){
+						newDate = this.moveYear(this.dates.get(-1) || UTCToday(), dir);
+						newViewDate = this.moveYear(focusDate, dir);
+						this._trigger('changeYear', this.viewDate);
+					}
+					else if (e.shiftKey){
+						newDate = this.moveMonth(this.dates.get(-1) || UTCToday(), dir);
+						newViewDate = this.moveMonth(focusDate, dir);
+						this._trigger('changeMonth', this.viewDate);
+					}
+					else {
+						newDate = new Date(this.dates.get(-1) || UTCToday());
+						newDate.setUTCDate(newDate.getUTCDate() + dir * 7);
+						newViewDate = new Date(focusDate);
+						newViewDate.setUTCDate(focusDate.getUTCDate() + dir * 7);
+					}
+					if (this.dateWithinRange(newViewDate)){
+						this.focusDate = this.viewDate = newViewDate;
+						this.setValue();
+						this.fill();
+						e.preventDefault();
+					}
+					break;
+				case 32: // spacebar
+					// Spacebar is used in manually typing dates in some formats.
+					// As such, its behavior should not be hijacked.
+					break;
+				case 13: // enter
+					if (!this.o.forceParse) {
+							break;
+					}
+					focusDate = this.focusDate || this.dates.get(-1) || this.viewDate;
+					if (this.o.keyboardNavigation) {
+						this._toggle_multidate(focusDate);
+						dateChanged = true;
+					}
+					this.focusDate = null;
+					this.viewDate = this.dates.get(-1) || this.viewDate;
+					this.setValue();
+					this.fill();
+					if (this.picker.is(':visible')){
+						e.preventDefault();
+						if (typeof e.stopPropagation === 'function') {
+							e.stopPropagation(); // All modern browsers, IE9+
+						} else {
+							e.cancelBubble = true; // IE6,7,8 ignore "stopPropagation"
+						}
+						if (this.o.autoclose)
+							this.hide();
+					}
+					break;
+				case 9: // tab
+					this.focusDate = null;
+					this.viewDate = this.dates.get(-1) || this.viewDate;
+					this.fill();
+					this.hide();
+					break;
+			}
+			if (dateChanged){
+				if (this.dates.length)
+					this._trigger('changeDate');
+				else
+					this._trigger('clearDate');
+				var element;
+				if (this.isInput){
+					element = this.element;
+				}
+				else if (this.component){
+					element = this.element.find('input');
+				}
+				if (element){
+					element.change();
+				}
+			}
+		},
+
+		showMode: function(dir){
+			if (dir){
+				this.viewMode = Math.max(this.o.minViewMode, Math.min(this.o.maxViewMode, this.viewMode + dir));
+			}
+			this.picker
+				.children('div')
+				.hide()
+				.filter('.datepicker-' + DPGlobal.modes[this.viewMode].clsName)
+					.show();
+			this.updateNavArrows();
+		}
+	};
+
+	var DateRangePicker = function(element, options){
+		this.element = $(element);
+		this.inputs = $.map(options.inputs, function(i){
+			return i.jquery ? i[0] : i;
+		});
+		delete options.inputs;
+
+		datepickerPlugin.call($(this.inputs), options)
+			.on('changeDate', $.proxy(this.dateUpdated, this));
+
+		this.pickers = $.map(this.inputs, function(i){
+			return $(i).data('datepicker');
+		});
+		this.updateDates();
+	};
+	DateRangePicker.prototype = {
+		updateDates: function(){
+			this.dates = $.map(this.pickers, function(i){
+				return i.getUTCDate();
+			});
+			this.updateRanges();
+		},
+		updateRanges: function(){
+			var range = $.map(this.dates, function(d){
+				return d.valueOf();
+			});
+			$.each(this.pickers, function(i, p){
+				p.setRange(range);
+			});
+		},
+		dateUpdated: function(e){
+			// `this.updating` is a workaround for preventing infinite recursion
+			// between `changeDate` triggering and `setUTCDate` calling.  Until
+			// there is a better mechanism.
+			if (this.updating)
+				return;
+			this.updating = true;
+
+			var dp = $(e.target).data('datepicker');
+
+			if (typeof(dp) === "undefined") {
+				return;
+			}
+
+			var new_date = dp.getUTCDate(),
+				i = $.inArray(e.target, this.inputs),
+				j = i - 1,
+				k = i + 1,
+				l = this.inputs.length;
+			if (i === -1)
+				return;
+
+			$.each(this.pickers, function(i, p){
+				if (!p.getUTCDate())
+					p.setUTCDate(new_date);
+			});
+
+			if (new_date < this.dates[j]){
+				// Date being moved earlier/left
+				while (j >= 0 && new_date < this.dates[j]){
+					this.pickers[j--].setUTCDate(new_date);
+				}
+			}
+			else if (new_date > this.dates[k]){
+				// Date being moved later/right
+				while (k < l && new_date > this.dates[k]){
+					this.pickers[k++].setUTCDate(new_date);
+				}
+			}
+			this.updateDates();
+
+			delete this.updating;
+		},
+		remove: function(){
+			$.map(this.pickers, function(p){ p.remove(); });
+			delete this.element.data().datepicker;
+		}
+	};
+
+	function opts_from_el(el, prefix){
+		// Derive options from element data-attrs
+		var data = $(el).data(),
+			out = {}, inkey,
+			replace = new RegExp('^' + prefix.toLowerCase() + '([A-Z])');
+		prefix = new RegExp('^' + prefix.toLowerCase());
+		function re_lower(_,a){
+			return a.toLowerCase();
+		}
+		for (var key in data)
+			if (prefix.test(key)){
+				inkey = key.replace(replace, re_lower);
+				out[inkey] = data[key];
+			}
+		return out;
+	}
+
+	function opts_from_locale(lang){
+		// Derive options from locale plugins
+		var out = {};
+		// Check if "de-DE" style date is available, if not language should
+		// fallback to 2 letter code eg "de"
+		if (!dates[lang]){
+			lang = lang.split('-')[0];
+			if (!dates[lang])
+				return;
+		}
+		var d = dates[lang];
+		$.each(locale_opts, function(i,k){
+			if (k in d)
+				out[k] = d[k];
+		});
+		return out;
+	}
+
+	var old = $.fn.datepicker;
+	var datepickerPlugin = function(option){
+		var args = Array.apply(null, arguments);
+		args.shift();
+		var internal_return;
+		this.each(function(){
+			var $this = $(this),
+				data = $this.data('datepicker'),
+				options = typeof option === 'object' && option;
+			if (!data){
+				var elopts = opts_from_el(this, 'date'),
+					// Preliminary otions
+					xopts = $.extend({}, defaults, elopts, options),
+					locopts = opts_from_locale(xopts.language),
+					// Options priority: js args, data-attrs, locales, defaults
+					opts = $.extend({}, defaults, locopts, elopts, options);
+				if ($this.hasClass('input-daterange') || opts.inputs){
+					var ropts = {
+						inputs: opts.inputs || $this.find('input').toArray()
+					};
+					$this.data('datepicker', (data = new DateRangePicker(this, $.extend(opts, ropts))));
+				}
+				else {
+					$this.data('datepicker', (data = new Datepicker(this, opts)));
+				}
+			}
+			if (typeof option === 'string' && typeof data[option] === 'function'){
+				internal_return = data[option].apply(data, args);
+			}
+		});
+
+		if (
+			internal_return === undefined ||
+			internal_return instanceof Datepicker ||
+			internal_return instanceof DateRangePicker
+		)
+			return this;
+
+		if (this.length > 1)
+			throw new Error('Using only allowed for the collection of a single element (' + option + ' function)');
+		else
+			return internal_return;
+	};
+	$.fn.datepicker = datepickerPlugin;
+
+	var defaults = $.fn.datepicker.defaults = {
+		autoclose: false,
+		beforeShowDay: $.noop,
+		beforeShowMonth: $.noop,
+		beforeShowYear: $.noop,
+		calendarWeeks: false,
+		clearBtn: false,
+		toggleActive: false,
+		daysOfWeekDisabled: [],
+		daysOfWeekHighlighted: [],
+		datesDisabled: [],
+		endDate: Infinity,
+		forceParse: true,
+		format: 'mm/dd/yyyy',
+		keyboardNavigation: true,
+		language: 'en',
+		minViewMode: 0,
+		maxViewMode: 2,
+		multidate: false,
+		multidateSeparator: ',',
+		orientation: "auto",
+		rtl: false,
+		startDate: -Infinity,
+		startView: 0,
+		todayBtn: false,
+		todayHighlight: false,
+		weekStart: 0,
+		disableTouchKeyboard: false,
+		enableOnReadonly: true,
+		container: 'body',
+		immediateUpdates: false,
+		title: ''
+	};
+	var locale_opts = $.fn.datepicker.locale_opts = [
+		'format',
+		'rtl',
+		'weekStart'
+	];
+	$.fn.datepicker.Constructor = Datepicker;
+	var dates = $.fn.datepicker.dates = {
+		en: {
+			days: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"],
+			daysShort: ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"],
+			daysMin: ["Su", "Mo", "Tu", "We", "Th", "Fr", "Sa"],
+			months: ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"],
+			monthsShort: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"],
+			today: "Today",
+			clear: "Clear",
+			titleFormat: "MM yyyy"
+		}
+	};
+
+	var DPGlobal = {
+		modes: [
+			{
+				clsName: 'days',
+				navFnc: 'Month',
+				navStep: 1
+			},
+			{
+				clsName: 'months',
+				navFnc: 'FullYear',
+				navStep: 1
+			},
+			{
+				clsName: 'years',
+				navFnc: 'FullYear',
+				navStep: 10
+		}],
+		isLeapYear: function(year){
+			return (((year % 4 === 0) && (year % 100 !== 0)) || (year % 400 === 0));
+		},
+		getDaysInMonth: function(year, month){
+			return [31, (DPGlobal.isLeapYear(year) ? 29 : 28), 31, 30, 31, 30, 31, 31, 30, 31, 30, 31][month];
+		},
+		validParts: /dd?|DD?|mm?|MM?|yy(?:yy)?/g,
+		nonpunctuation: /[^ -\/:-@\[\u3400-\u9fff-`{-~\t\n\r]+/g,
+		parseFormat: function(format){
+			if (typeof format.toValue === 'function' && typeof format.toDisplay === 'function')
+                return format;
+            // IE treats \0 as a string end in inputs (truncating the value),
+			// so it's a bad format delimiter, anyway
+			var separators = format.replace(this.validParts, '\0').split('\0'),
+				parts = format.match(this.validParts);
+			if (!separators || !separators.length || !parts || parts.length === 0){
+				throw new Error("Invalid date format.");
+			}
+			return {separators: separators, parts: parts};
+		},
+		parseDate: function(date, format, language){
+			if (!date)
+				return undefined;
+			if (date instanceof Date)
+				return date;
+			if (typeof format === 'string')
+				format = DPGlobal.parseFormat(format);
+			if (format.toValue)
+                return format.toValue(date, format, language);
+            var part_re = /([\-+]\d+)([dmwy])/,
+				parts = date.match(/([\-+]\d+)([dmwy])/g),
+				part, dir, i;
+			if (/^[\-+]\d+[dmwy]([\s,]+[\-+]\d+[dmwy])*$/.test(date)){
+				date = new Date();
+				for (i=0; i < parts.length; i++){
+					part = part_re.exec(parts[i]);
+					dir = parseInt(part[1]);
+					switch (part[2]){
+						case 'd':
+							date.setUTCDate(date.getUTCDate() + dir);
+							break;
+						case 'm':
+							date = Datepicker.prototype.moveMonth.call(Datepicker.prototype, date, dir);
+							break;
+						case 'w':
+							date.setUTCDate(date.getUTCDate() + dir * 7);
+							break;
+						case 'y':
+							date = Datepicker.prototype.moveYear.call(Datepicker.prototype, date, dir);
+							break;
+					}
+				}
+				return UTCDate(date.getUTCFullYear(), date.getUTCMonth(), date.getUTCDate(), 0, 0, 0);
+			}
+			parts = date && date.match(this.nonpunctuation) || [];
+			date = new Date();
+			var parsed = {},
+				setters_order = ['yyyy', 'yy', 'M', 'MM', 'm', 'mm', 'd', 'dd'],
+				setters_map = {
+					yyyy: function(d,v){
+						return d.setUTCFullYear(v);
+					},
+					yy: function(d,v){
+						return d.setUTCFullYear(2000+v);
+					},
+					m: function(d,v){
+						if (isNaN(d))
+							return d;
+						v -= 1;
+						while (v < 0) v += 12;
+						v %= 12;
+						d.setUTCMonth(v);
+						while (d.getUTCMonth() !== v)
+							d.setUTCDate(d.getUTCDate()-1);
+						return d;
+					},
+					d: function(d,v){
+						return d.setUTCDate(v);
+					}
+				},
+				val, filtered;
+			setters_map['M'] = setters_map['MM'] = setters_map['mm'] = setters_map['m'];
+			setters_map['dd'] = setters_map['d'];
+			date = UTCDate(date.getFullYear(), date.getMonth(), date.getDate(), 0, 0, 0);
+			var fparts = format.parts.slice();
+			// Remove noop parts
+			if (parts.length !== fparts.length){
+				fparts = $(fparts).filter(function(i,p){
+					return $.inArray(p, setters_order) !== -1;
+				}).toArray();
+			}
+			// Process remainder
+			function match_part(){
+				var m = this.slice(0, parts[i].length),
+					p = parts[i].slice(0, m.length);
+				return m.toLowerCase() === p.toLowerCase();
+			}
+			if (parts.length === fparts.length){
+				var cnt;
+				for (i=0, cnt = fparts.length; i < cnt; i++){
+					val = parseInt(parts[i], 10);
+					part = fparts[i];
+					if (isNaN(val)){
+						switch (part){
+							case 'MM':
+								filtered = $(dates[language].months).filter(match_part);
+								val = $.inArray(filtered[0], dates[language].months) + 1;
+								break;
+							case 'M':
+								filtered = $(dates[language].monthsShort).filter(match_part);
+								val = $.inArray(filtered[0], dates[language].monthsShort) + 1;
+								break;
+						}
+					}
+					parsed[part] = val;
+				}
+				var _date, s;
+				for (i=0; i < setters_order.length; i++){
+					s = setters_order[i];
+					if (s in parsed && !isNaN(parsed[s])){
+						_date = new Date(date);
+						setters_map[s](_date, parsed[s]);
+						if (!isNaN(_date))
+							date = _date;
+					}
+				}
+			}
+			return date;
+		},
+		formatDate: function(date, format, language){
+			if (!date)
+				return '';
+			if (typeof format === 'string')
+				format = DPGlobal.parseFormat(format);
+			if (format.toDisplay)
+                return format.toDisplay(date, format, language);
+            var val = {
+				d: date.getUTCDate(),
+				D: dates[language].daysShort[date.getUTCDay()],
+				DD: dates[language].days[date.getUTCDay()],
+				m: date.getUTCMonth() + 1,
+				M: dates[language].monthsShort[date.getUTCMonth()],
+				MM: dates[language].months[date.getUTCMonth()],
+				yy: date.getUTCFullYear().toString().substring(2),
+				yyyy: date.getUTCFullYear()
+			};
+			val.dd = (val.d < 10 ? '0' : '') + val.d;
+			val.mm = (val.m < 10 ? '0' : '') + val.m;
+			date = [];
+			var seps = $.extend([], format.separators);
+			for (var i=0, cnt = format.parts.length; i <= cnt; i++){
+				if (seps.length)
+					date.push(seps.shift());
+				date.push(val[format.parts[i]]);
+			}
+			return date.join('');
+		},
+		headTemplate: '<thead>'+
+			              '<tr>'+
+			                '<th colspan="7" class="datepicker-title"></th>'+
+			              '</tr>'+
+							'<tr>'+
+								'<th class="prev"><svg class="icon icon-arrow-left"><use xlink:href="#icon-arrow-left"/></svg></th>'+
+								'<th colspan="5" class="datepicker-switch"></th>'+
+								'<th class="next"><svg class="icon icon-arrow-right"><use xlink:href="#icon-arrow-right"/></svg></th>'+
+							'</tr>'+
+						'</thead>',
+		contTemplate: '<tbody><tr><td colspan="7"></td></tr></tbody>',
+		footTemplate: '<tfoot>'+
+							'<tr>'+
+								'<th colspan="7" class="today"></th>'+
+							'</tr>'+
+							'<tr>'+
+								'<th colspan="7" class="clear"></th>'+
+							'</tr>'+
+						'</tfoot>'
+	};
+	DPGlobal.template = '<div class="datepicker">'+
+							'<div class="datepicker-days">'+
+								'<table class=" table-condensed">'+
+									DPGlobal.headTemplate+
+									'<tbody></tbody>'+
+									DPGlobal.footTemplate+
+								'</table>'+
+							'</div>'+
+							'<div class="datepicker-months">'+
+								'<table class="table-condensed">'+
+									DPGlobal.headTemplate+
+									DPGlobal.contTemplate+
+									DPGlobal.footTemplate+
+								'</table>'+
+							'</div>'+
+							'<div class="datepicker-years">'+
+								'<table class="table-condensed">'+
+									DPGlobal.headTemplate+
+									DPGlobal.contTemplate+
+									DPGlobal.footTemplate+
+								'</table>'+
+							'</div>'+
+						'</div>';
+
+	$.fn.datepicker.DPGlobal = DPGlobal;
+
+
+	/* DATEPICKER NO CONFLICT
+	* =================== */
+
+	$.fn.datepicker.noConflict = function(){
+		$.fn.datepicker = old;
+		return this;
+	};
+
+	/* DATEPICKER VERSION
+	 * =================== */
+	$.fn.datepicker.version =  "1.4.1-dev";
+
+	/* DATEPICKER DATA-API
+	* ================== */
+
+	$(document).on(
+		'focus.datepicker.data-api click.datepicker.data-api',
+		'[data-provide="datepicker"]',
+		function(e){
+			var $this = $(this);
+			if ($this.data('datepicker'))
+				return;
+			e.preventDefault();
+			// component click requires us to explicitly show it
+			datepickerPlugin.call($this, 'show');
+		}
+	);
+	$(function(){
+		datepickerPlugin.call($('[data-provide="datepicker-inline"]'));
+	});
+
+}));

app/assets/javascripts/app/lib/bootstrap/locales/bootstrap-datepicker.ar.js

@@ -0,0 +1,15 @@
+/**
+ * Arabic translation for bootstrap-datepicker
+ * Mohammed Alshehri <alshehri866@gmail.com>
+ */
+;(function($){
+    $.fn.datepicker.dates['ar'] = {
+        days: ["الأحد", "الاثنين", "الثلاثاء", "الأربعاء", "الخميس", "الجمعة", "السبت", "الأحد"],
+        daysShort: ["أحد", "اثنين", "ثلاثاء", "أربعاء", "خميس", "جمعة", "سبت", "أحد"],
+        daysMin: ["ح", "ن", "ث", "ع", "خ", "ج", "س", "ح"],
+        months: ["يناير", "فبراير", "مارس", "أبريل", "مايو", "يونيو", "يوليو", "أغسطس", "سبتمبر", "أكتوبر", "نوفمبر", "ديسمبر"],
+        monthsShort: ["يناير", "فبراير", "مارس", "أبريل", "مايو", "يونيو", "يوليو", "أغسطس", "سبتمبر", "أكتوبر", "نوفمبر", "ديسمبر"],
+        today: "هذا اليوم",
+        rtl: true
+    };
+}(jQuery));

app/assets/javascripts/app/lib/bootstrap/locales/bootstrap-datepicker.az.js

@@ -0,0 +1,12 @@
+// Azerbaijani
+;(function($){
+    $.fn.datepicker.dates['az'] = {
+        days: ["Bazar", "Bazar ertəsi", "Çərşənbə axşamı", "Çərşənbə", "Cümə axşamı", "Cümə", "Şənbə"],
+        daysShort: ["B.", "B.e", "Ç.a", "Ç.", "C.a", "C.", "Ş."],
+        daysMin: ["B.", "B.e", "Ç.a", "Ç.", "C.a", "C.", "Ş."],
+        months: ["Yanvar", "Fevral", "Mart", "Aprel", "May", "İyun", "İyul", "Avqust", "Sentyabr", "Oktyabr", "Noyabr", "Dekabr"],
+        monthsShort: ["Yan", "Fev", "Mar", "Apr", "May", "İyun", "İyul", "Avq", "Sen", "Okt", "Noy", "Dek"],
+        today: "Bu gün",
+        weekStart: 1
+    };
+}(jQuery));

app/assets/javascripts/app/lib/bootstrap/locales/bootstrap-datepicker.bg.js

@@ -0,0 +1,14 @@
+/**
+ * Bulgarian translation for bootstrap-datepicker
+ * Apostol Apostolov <apostol.s.apostolov@gmail.com>
+ */
+;(function($){
+	$.fn.datepicker.dates['bg'] = {
+		days: ["Неделя", "Понеделник", "Вторник", "Сряда", "Четвъртък", "Петък", "Събота"],
+		daysShort: ["Нед", "Пон", "Вто", "Сря", "Чет", "Пет", "Съб"],
+		daysMin: ["Н", "П", "В", "С", "Ч", "П", "С"],
+		months: ["Януари", "Февруари", "Март", "Април", "Май", "Юни", "Юли", "Август", "Септември", "Октомври", "Ноември", "Декември"],
+		monthsShort: ["Ян", "Фев", "Мар", "Апр", "Май", "Юни", "Юли", "Авг", "Сеп", "Окт", "Ное", "Дек"],
+		today: "днес"
+	};
+}(jQuery));

app/assets/javascripts/app/lib/bootstrap/locales/bootstrap-datepicker.bs.js

@@ -0,0 +1,15 @@
+/**
+ * Bosnian translation for bootstrap-datepicker
+ */
+;(function($){
+	$.fn.datepicker.dates['bs'] = {
+		days: ["Nedjelja","Ponedjeljak", "Utorak", "Srijeda", "Četvrtak", "Petak", "Subota"],
+		daysShort: ["Ned", "Pon", "Uto", "Sri", "Čet", "Pet", "Sub"],
+		daysMin: ["N", "Po", "U", "Sr", "Č", "Pe", "Su"],
+		months: ["Januar", "Februar", "Mart", "April", "Maj", "Juni", "Juli", "August", "Septembar", "Oktobar", "Novembar", "Decembar"],
+		monthsShort: ["Jan", "Feb", "Mar", "Apr", "Maj", "Jun", "Jul", "Aug", "Sep", "Okt", "Nov", "Dec"],
+		today: "Danas",
+		weekStart: 1,
+		format: "dd.mm.yyyy"
+	};
+}(jQuery));

app/assets/javascripts/app/lib/bootstrap/locales/bootstrap-datepicker.ca.js

@@ -0,0 +1,17 @@
+/**
+ * Catalan translation for bootstrap-datepicker
+ * J. Garcia <jogaco.en@gmail.com>
+ */
+;(function($){
+	$.fn.datepicker.dates['ca'] = {
+		days: ["Diumenge", "Dilluns", "Dimarts", "Dimecres", "Dijous", "Divendres", "Dissabte"],
+		daysShort: ["Diu",  "Dil", "Dmt", "Dmc", "Dij", "Div", "Dis"],
+		daysMin: ["dg", "dl", "dt", "dc", "dj", "dv", "ds"],
+		months: ["Gener", "Febrer", "Març", "Abril", "Maig", "Juny", "Juliol", "Agost", "Setembre", "Octubre", "Novembre", "Desembre"],
+		monthsShort: ["Gen", "Feb", "Mar", "Abr", "Mai", "Jun", "Jul", "Ago", "Set", "Oct", "Nov", "Des"],
+		today: "Avui",
+		clear: "Esborrar",
+		weekStart: 1,
+		format: "dd/mm/yyyy"
+	};
+}(jQuery));

app/assets/javascripts/app/lib/bootstrap/locales/bootstrap-datepicker.cs.js

@@ -0,0 +1,18 @@
+/**
+ * Czech translation for bootstrap-datepicker
+ * Matěj Koubík <matej@koubik.name>
+ * Fixes by Michal Remiš <michal.remis@gmail.com>
+ */
+;(function($){
+	$.fn.datepicker.dates['cs'] = {
+		days: ["Neděle", "Pondělí", "Úterý", "Středa", "Čtvrtek", "Pátek", "Sobota"],
+		daysShort: ["Ned", "Pon", "Úte", "Stř", "Čtv", "Pát", "Sob"],
+		daysMin: ["Ne", "Po", "Út", "St", "Čt", "Pá", "So"],
+		months: ["Leden", "Únor", "Březen", "Duben", "Květen", "Červen", "Červenec", "Srpen", "Září", "Říjen", "Listopad", "Prosinec"],
+		monthsShort: ["Led", "Úno", "Bře", "Dub", "Kvě", "Čer", "Čnc", "Srp", "Zář", "Říj", "Lis", "Pro"],
+		today: "Dnes",
+		clear: "Vymazat",
+		weekStart: 1,
+		format: "dd.m.yyyy"
+	};
+}(jQuery));

app/assets/javascripts/app/lib/bootstrap/locales/bootstrap-datepicker.cy.js

@@ -0,0 +1,14 @@
+/**
+ * Welsh translation for bootstrap-datepicker
+ * S. Morris <s.morris@bangor.ac.uk>
+ */
+;(function($){
+	$.fn.datepicker.dates['cy'] = {
+		days: ["Sul", "Llun", "Mawrth", "Mercher", "Iau", "Gwener", "Sadwrn"],
+		daysShort: ["Sul", "Llu", "Maw", "Mer", "Iau", "Gwe", "Sad"],
+		daysMin: ["Su", "Ll", "Ma", "Me", "Ia", "Gwe", "Sa"],
+		months: ["Ionawr", "Chewfror", "Mawrth", "Ebrill", "Mai", "Mehefin", "Gorfennaf", "Awst", "Medi", "Hydref", "Tachwedd", "Rhagfyr"],
+		monthsShort: ["Ion", "Chw", "Maw", "Ebr", "Mai", "Meh", "Gor", "Aws", "Med", "Hyd", "Tach", "Rha"],
+		today: "Heddiw"
+	};
+}(jQuery));

app/assets/javascripts/app/lib/bootstrap/locales/bootstrap-datepicker.da.js

@@ -0,0 +1,16 @@
+/**
+ * Danish translation for bootstrap-datepicker
+ * Christian Pedersen <http://github.com/chripede>
+ * Ivan Mylyanyk <https://github.com/imylyanyk>
+ */
+;(function($){
+	$.fn.datepicker.dates['da'] = {
+		days: ["søndag", "mandag", "tirsdag", "onsdag", "torsdag", "fredag", "lørdag"],
+		daysShort: ["søn", "man", "tir", "ons", "tor", "fre", "lør"],
+		daysMin: ["sø", "ma", "ti", "on", "to", "fr", "lø"],
+		months: ["januar", "februar", "marts", "april", "maj", "juni", "juli", "august", "september", "oktober", "november", "december"],
+		monthsShort: ["jan", "feb", "mar", "apr", "maj", "jun", "jul", "aug", "sep", "okt", "nov", "dec"],
+		today: "I Dag",
+		clear: "Nulstil"
+	};
+}(jQuery));