Update datepicker

Signed-off-by: Michal Čihař <michal@cihar.com>

weblate/media/bootstrap/css/datepicker3.css

 /*!
- * Datepicker for Bootstrap
+ * Datepicker for Bootstrap v1.5.0-dev (https://github.com/eternicode/bootstrap-datepicker)
  *
  * Copyright 2012 Stefan Petre
  * Improvements by Andrew Rowls
- * Licensed under the Apache License v2.0
- * http://www.apache.org/licenses/LICENSE-2.0
- *
+ * Licensed under the Apache License v2.0 (http://www.apache.org/licenses/LICENSE-2.0)
  */
 .datepicker {
-  padding: 4px;
   border-radius: 4px;
   direction: ltr;
-  /*.dow {
-		border-top: 1px solid #ddd !important;
-	}*/
 }
 .datepicker-inline {
   width: 220px;
@@ -78,13 +72,9 @@
 .datepicker > div {
   display: none;
 }
-.datepicker.days div.datepicker-days {
-  display: block;
-}
-.datepicker.months div.datepicker-months {
-  display: block;
-}
-.datepicker.years div.datepicker-years {
+.datepicker.days .datepicker-days,
+.datepicker.months .datepicker-months,
+.datepicker.years .datepicker-years {
   display: block;
 }
 .datepicker table {
@@ -708,7 +698,7 @@ fieldset[disabled] .datepicker table tr td span.active.disabled:hover.active {
 .datepicker table tr td span.new {
   color: #999999;
 }
-.datepicker th.datepicker-switch {
+.datepicker .datepicker-switch {
   width: 145px;
 }
 .datepicker thead tr:first-child th,
@@ -725,14 +715,15 @@ fieldset[disabled] .datepicker table tr td span.active.disabled:hover.active {
   padding: 0 2px 0 5px;
   vertical-align: middle;
 }
-.datepicker thead tr:first-child th.cw {
+.datepicker thead tr:first-child .cw {
   cursor: default;
   background-color: transparent;
 }
-.input-group.date .input-group-addon i {
+.input-group.date .input-group-addon {
   cursor: pointer;
-  width: 16px;
-  height: 16px;
+}
+.input-daterange {
+  width: 100%;
 }
 .input-daterange input {
   text-align: center;
@@ -748,7 +739,7 @@ fieldset[disabled] .datepicker table tr td span.active.disabled:hover.active {
   min-width: 16px;
   padding: 4px 5px;
   font-weight: normal;
-  line-height: 1.428571429;
+  line-height: 1.42857143;
   text-align: center;
   text-shadow: 0 1px 0 #fff;
   vertical-align: middle;
@@ -758,35 +749,3 @@ fieldset[disabled] .datepicker table tr td span.active.disabled:hover.active {
   margin-left: -5px;
   margin-right: -5px;
 }
-.datepicker.dropdown-menu {
-  position: absolute;
-  top: 100%;
-  left: 0;
-  z-index: 1000;
-  float: left;
-  display: none;
-  min-width: 160px;
-  list-style: none;
-  background-color: #ffffff;
-  border: 1px solid #ccc;
-  border: 1px solid rgba(0, 0, 0, 0.2);
-  border-radius: 5px;
-  -webkit-box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
-  -moz-box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
-  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
-  -webkit-background-clip: padding-box;
-  -moz-background-clip: padding;
-  background-clip: padding-box;
-  *border-right-width: 2px;
-  *border-bottom-width: 2px;
-  color: #333333;
-  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
-  font-size: 13px;
-  line-height: 1.428571429;
-}
-.datepicker.dropdown-menu th,
-.datepicker.datepicker-inline th,
-.datepicker.dropdown-menu td,
-.datepicker.datepicker-inline td {
-  padding: 0px 5px;
-}

weblate/media/js/bootstrap-datepicker.js

-/* =========================================================
- * 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
+/*!
+ * Datepicker for Bootstrap v1.5.0-dev (https://github.com/eternicode/bootstrap-datepicker)
  *
- * 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.
- * ========================================================= */
-
-(function($, undefined){
-
-	var $window = $(window);
+ * Copyright 2012 Stefan Petre
+ * Improvements by Andrew Rowls
+ * Licensed under the Apache License v2.0 (http://www.apache.org/licenses/LICENSE-2.0)
+ */(function($, undefined){
 
 	function UTCDate(){
 		return new Date(Date.UTC.apply(Date, arguments));
@@ -31,6 +13,13 @@
 		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);
@@ -84,16 +73,16 @@
 	// Picker object
 
 	var Datepicker = function(element, options){
+		this._process_options(options);
+
 		this.dates = new DateArray();
-		this.viewDate = UTCToday();
+		this.viewDate = this.o.defaultViewDate;
 		this.focusDate = null;
 
-		this._process_options(options);
-
 		this.element = $(element);
 		this.isInline = false;
 		this.isInput = this.element.is('input');
-		this.component = this.element.is('.date') ? this.element.find('.add-on, .input-group-addon, .btn') : false;
+		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;
@@ -116,7 +105,7 @@
 		this.viewMode = this.o.startView;
 
 		if (this.o.calendarWeeks)
-			this.picker.find('tfoot th.today')
+			this.picker.find('tfoot .today, tfoot .clear')
 						.attr('colspan', function(i, val){
 							return parseInt(val) + 1;
 						});
@@ -126,6 +115,7 @@
 		this.setStartDate(this._o.startDate);
 		this.setEndDate(this._o.endDate);
 		this.setDaysOfWeekDisabled(this.o.daysOfWeekDisabled);
+		this.setDatesDisabled(this.o.datesDisabled);
 
 		this.fillDow();
 		this.fillMonths();
@@ -192,8 +182,6 @@
 				o.multidate = Number(o.multidate) || false;
 				if (o.multidate !== false)
 					o.multidate = Math.max(0, o.multidate);
-				else
-					o.multidate = 1;
 			}
 			o.multidateSeparator = String(o.multidateSeparator);
 
@@ -231,10 +219,20 @@
 				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);
+				return /^auto|left|right|top|bottom$/.test(word);
 			});
 			o.orientation = {x: 'auto', y: 'auto'};
 			if (!_plc || _plc === 'auto')
@@ -253,15 +251,24 @@
 			}
 			else {
 				_plc = $.grep(plc, function(word){
-					return (/^left|right$/).test(word);
+					return /^left|right$/.test(word);
 				});
 				o.orientation.x = _plc[0] || 'auto';
 
 				_plc = $.grep(plc, function(word){
-					return (/^top|bottom$/).test(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;
 		},
 		_events: [],
 		_secondaryEvents: [],
@@ -294,34 +301,33 @@
 			}
 		},
 		_buildEvents: function(){
-			if (this.isInput){ // single input
-				this._events = [
-					[this.element, {
-						focus: $.proxy(this.show, this),
-						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)
-					}]
-				];
-			}
-			else if (this.component && this.hasInput){ // component: input + button
-				this._events = [
-					// For components that are not readonly, allow keyboard nav
-					[this.element.find('input'), {
-						focus: $.proxy(this.show, this),
-						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)
-					}],
-					[this.component, {
-						click: $.proxy(this.show, this)
-					}]
-				];
-			}
+            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;
 			}
@@ -347,6 +353,15 @@
 				}]
 			);
 
+			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)
@@ -355,7 +370,7 @@
 					resize: $.proxy(this.place, this)
 				}],
 				[$(document), {
-					'mousedown touchstart': $.proxy(function(e){
+					mousedown: $.proxy(function(e){
 						// Clicked outside the datepicker, hide it
 						if (!(
 							this.element.is(e.target) ||
@@ -363,7 +378,7 @@
 							this.picker.is(e.target) ||
 							this.picker.find(e.target).length
 						)){
-							this.hide();
+							$(this.picker).hide();
 						}
 					}, this)
 				}]
@@ -408,19 +423,25 @@
 		},
 
 		show: function(){
+			if (this.element.attr('readonly') && this.o.enableOnReadonly === false)
+				return;
 			if (!this.isInline)
-				this.picker.appendTo('body');
-			this.picker.show();
+				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;
+				return this;
 			if (!this.picker.is(':visible'))
-				return;
+				return this;
 			this.focusDate = null;
 			this.picker.hide().detach();
 			this._detachSecondaryEvents();
@@ -436,6 +457,7 @@
 			)
 				this.setValue();
 			this._trigger('hide');
+			return this;
 		},
 
 		remove: function(){
@@ -447,6 +469,24 @@
 			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){
@@ -477,14 +517,39 @@
 		},
 
 		getUTCDate: function(){
-			return new Date(this.dates.get(-1));
+			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('').change();
+			}
+
+			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(){
@@ -492,6 +557,7 @@
 			this.update.apply(this, $.map(args, this._utc_to_local));
 			this._trigger('changeDate');
 			this.setValue();
+			return this;
 		},
 
 		setDate: alias('setDates'),
@@ -507,6 +573,7 @@
 			else {
 				this.element.val(formatted).change();
 			}
+			return this;
 		},
 
 		getFormattedDate: function(format){
@@ -523,38 +590,51 @@
 			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;
+		},
+
+		setDatesDisabled: function(datesDisabled){
+			this._process_options({datesDisabled: datesDisabled});
+			this.update();
+			this.updateNavArrows();
 		},
 
 		place: function(){
 			if (this.isInline)
-				return;
+				return this;
 			var calendarWidth = this.picker.outerWidth(),
 				calendarHeight = this.picker.outerHeight(),
 				visualPadding = 10,
-				windowWidth = $window.width(),
-				windowHeight = $window.height(),
-				scrollTop = $window.scrollTop();
-
-			var zIndex = parseInt(this.element.parents().filter(function(){
-					return $(this).css('z-index') !== 'auto';
-				}).first().css('z-index'))+10;
+				windowWidth = $(this.o.container).width(),
+				windowHeight = $(this.o.container).height(),
+				scrollTop = $(this.o.container).scrollTop(),
+				appendOffset = $(this.o.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) + 10;
 			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,
-				top = offset.top;
+			var left = offset.left - appendOffset.left,
+				top = offset.top - appendOffset.top;
 
 			this.picker.removeClass(
 				'datepicker-orient-top datepicker-orient-bottom '+
@@ -569,12 +649,18 @@
 			// auto x orientation is best-placement: if it crosses a window
 			// edge, fudge it sideways
 			else {
-				// Default to left
-				this.picker.addClass('datepicker-orient-left');
-				if (offset.left < 0)
+				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 (offset.left + calendarWidth > windowWidth)
-					left = windowWidth - calendarWidth - 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,
@@ -582,8 +668,8 @@
 			var yorient = this.o.orientation.y,
 				top_overflow, bottom_overflow;
 			if (yorient === 'auto'){
-				top_overflow = -scrollTop + offset.top - calendarHeight;
-				bottom_overflow = scrollTop + windowHeight - (offset.top + height + calendarHeight);
+				top_overflow = -scrollTop + top - calendarHeight;
+				bottom_overflow = scrollTop + windowHeight - (top + height + calendarHeight);
 				if (Math.max(top_overflow, bottom_overflow) === bottom_overflow)
 					yorient = 'top';
 				else
@@ -595,17 +681,27 @@
 			else
 				top -= calendarHeight + parseInt(this.picker.css('padding-top'));
 
-			this.picker.css({
-				top: top,
-				left: left,
-				zIndex: zIndex
-			});
+			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;
+				return this;
 
 			var oldDates = this.dates.copy(),
 				dates = [],
@@ -661,15 +757,19 @@
 				this._trigger('clearDate');
 
 			this.fill();
+			return this;
 		},
 
 		fillDow: function(){
 			var dowCnt = this.o.weekStart,
 				html = '<tr>';
 			if (this.o.calendarWeeks){
-				var cell = '<th class="cw">&nbsp;</th>';
+				this.picker.find('.datepicker-days thead tr:first-child .datepicker-switch')
+					.attr('colspan', function(i, val){
+						return parseInt(val) + 1;
+					});
+				var cell = '<th class="cw">&#160;</th>';
 				html += cell;
-				this.picker.find('.datepicker-days thead tr:first-child').prepend(cell);
 			}
 			while (dowCnt < this.o.weekStart + 7){
 				html += '<th class="dow">'+dates[this.o.language].daysMin[(dowCnt++)%7]+'</th>';
@@ -723,6 +823,12 @@
 				$.inArray(date.getUTCDay(), this.o.daysOfWeekDisabled) !== -1){
 				cls.push('disabled');
 			}
+			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');
@@ -745,12 +851,14 @@
 				todaytxt = dates[this.o.language].today || dates['en'].today || '',
 				cleartxt = dates[this.o.language].clear || dates['en'].clear || '',
 				tooltip;
-			this.picker.find('.datepicker-days thead th.datepicker-switch')
+			if (isNaN(year) || isNaN(month))
+				return;
+			this.picker.find('.datepicker-days thead .datepicker-switch')
 						.text(dates[this.o.language].months[month]+' '+year);
-			this.picker.find('tfoot th.today')
+			this.picker.find('tfoot .today')
 						.text(todaytxt)
 						.toggle(this.o.todayBtn !== false);
-			this.picker.find('tfoot th.clear')
+			this.picker.find('tfoot .clear')
 						.text(cleartxt)
 						.toggle(this.o.clearBtn !== false);
 			this.updateNavArrows();
@@ -804,6 +912,7 @@
 
 				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>');
 				}
@@ -832,6 +941,18 @@
 				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')
@@ -854,7 +975,7 @@
 					classes.push('active');
 				if (year < startYear || year > endYear)
 					classes.push('disabled');
-				html += '<span class="' + classes.join(' ') + '">'+year+'</span>';
+				html += '<span class="' + classes.join(' ') + '">' + year + '</span>';
 				year += 1;
 			}
 			yearCont.html(html);
@@ -937,24 +1058,14 @@
 								this._setDate(date, which);
 								break;
 							case 'clear':
-								var element;
-								if (this.isInput)
-									element = this.element;
-								else if (this.component)
-									element = this.element.find('input');
-								if (element)
-									element.val("").change();
-								this.update();
-								this._trigger('changeDate');
-								if (this.o.autoclose)
-									this.hide();
+								this.clearDates();
 								break;
 						}
 						break;
 					case 'span':
-						if (!target.is('.disabled')){
+						if (!target.hasClass('disabled')){
 							this.viewDate.setUTCDate(1);
-							if (target.is('.month')){
+							if (target.hasClass('month')){
 								day = 1;
 								month = target.parent().find('span').index(target);
 								year = this.viewDate.getUTCFullYear();
@@ -962,6 +1073,9 @@
 								this._trigger('changeMonth', this.viewDate);
 								if (this.o.minViewMode === 1){
 									this._setDate(UTCDate(year, month, day));
+									this.showMode();
+								} else {
+									this.showMode(-1);
 								}
 							}
 							else {
@@ -973,17 +1087,17 @@
 								if (this.o.minViewMode === 2){
 									this._setDate(UTCDate(year, month, day));
 								}
+								this.showMode(-1);
 							}
-							this.showMode(-1);
 							this.fill();
 						}
 						break;
 					case 'td':
-						if (target.is('.day') && !target.is('.disabled')){
+						if (target.hasClass('day') && !target.hasClass('disabled')){
 							day = parseInt(target.text(), 10)||1;
 							year = this.viewDate.getUTCFullYear();
 							month = this.viewDate.getUTCMonth();
-							if (target.is('.old')){
+							if (target.hasClass('old')){
 								if (month === 0){
 									month = 11;
 									year -= 1;
@@ -992,7 +1106,7 @@
 									month -= 1;
 								}
 							}
-							else if (target.is('.new')){
+							else if (target.hasClass('new')){
 								if (month === 11){
 									month = 0;
 									year += 1;
@@ -1017,12 +1131,19 @@
 			if (!date){
 				this.dates.clear();
 			}
-			else if (ix !== -1){
-				this.dates.remove(ix);
+
+			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);
@@ -1036,7 +1157,9 @@
 
 			this.fill();
 			this.setValue();
-			this._trigger('changeDate');
+			if (!which || which  !== 'view') {
+				this._trigger('changeDate');
+			}
 			var element;
 			if (this.isInput){
 				element = this.element;
@@ -1111,8 +1234,8 @@
 		},
 
 		keydown: function(e){
-			if (this.picker.is(':not(:visible)')){
-				if (e.keyCode === 27) // allow escape to hide and re-show picker
+			if (!this.picker.is(':visible')){
+				if (e.keyCode === 40 || e.keyCode === 27) // allow down to re-show picker
 					this.show();
 				return;
 			}
@@ -1151,7 +1274,7 @@
 						newViewDate = new Date(focusDate);
 						newViewDate.setUTCDate(focusDate.getUTCDate() + dir);
 					}
-					if (this.dateWithinRange(newDate)){
+					if (this.dateWithinRange(newViewDate)){
 						this.focusDate = this.viewDate = newViewDate;
 						this.setValue();
 						this.fill();
@@ -1179,7 +1302,7 @@
 						newViewDate = new Date(focusDate);
 						newViewDate.setUTCDate(focusDate.getUTCDate() + dir * 7);
 					}
-					if (this.dateWithinRange(newDate)){
+					if (this.dateWithinRange(newViewDate)){
 						this.focusDate = this.viewDate = newViewDate;
 						this.setValue();
 						this.fill();
@@ -1192,14 +1315,21 @@
 					break;
 				case 13: // enter
 					focusDate = this.focusDate || this.dates.get(-1) || this.viewDate;
-					this._toggle_multidate(focusDate);
-					dateChanged = true;
+					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();
 					}
@@ -1234,9 +1364,9 @@
 				this.viewMode = Math.max(this.o.minViewMode, Math.min(2, this.viewMode + dir));
 			}
 			this.picker
-				.find('>div')
+				.children('div')
 				.hide()
-				.filter('.datepicker-'+DPGlobal.modes[this.viewMode].clsName)
+				.filter('.datepicker-' + DPGlobal.modes[this.viewMode].clsName)
 					.css('display', 'block');
 			this.updateNavArrows();
 		}
@@ -1249,9 +1379,8 @@
 		});
 		delete options.inputs;
 
-		$(this.inputs)
-			.datepicker(options)
-			.bind('changeDate', $.proxy(this.dateUpdated, this));
+		datepickerPlugin.call($(this.inputs), options)
+			.on('changeDate', $.proxy(this.dateUpdated, this));
 
 		this.pickers = $.map(this.inputs, function(i){
 			return $(i).data('datepicker');
@@ -1284,6 +1413,8 @@
 			var dp = $(e.target).data('datepicker'),
 				new_date = dp.getUTCDate(),
 				i = $.inArray(e.target, this.inputs),
+				j = i - 1,
+				k = i + 1,
 				l = this.inputs.length;
 			if (i === -1)
 				return;
@@ -1293,16 +1424,16 @@
 					p.setUTCDate(new_date);
 			});
 
-			if (new_date < this.dates[i]){
+			if (new_date < this.dates[j]){
 				// Date being moved earlier/left
-				while (i >= 0 && new_date < this.dates[i]){
-					this.pickers[i--].setUTCDate(new_date);
+				while (j >= 0 && new_date < this.dates[j]){
+					this.pickers[j--].setUTCDate(new_date);
 				}
 			}
-			else if (new_date > this.dates[i]){
+			else if (new_date > this.dates[k]){
 				// Date being moved later/right
-				while (i < l && new_date > this.dates[i]){
-					this.pickers[i++].setUTCDate(new_date);
+				while (k < l && new_date > this.dates[k]){
+					this.pickers[k++].setUTCDate(new_date);
 				}
 			}
 			this.updateDates();
@@ -1351,7 +1482,7 @@
 	}
 
 	var old = $.fn.datepicker;
-	$.fn.datepicker = function(option){
+	var datepickerPlugin = function(option){
 		var args = Array.apply(null, arguments);
 		args.shift();
 		var internal_return;
@@ -1366,7 +1497,7 @@
 					locopts = opts_from_locale(xopts.language),
 					// Options priority: js args, data-attrs, locales, defaults
 					opts = $.extend({}, defaults, locopts, elopts, options);
-				if ($this.is('.input-daterange') || opts.inputs){
+				if ($this.hasClass('input-daterange') || opts.inputs){
 					var ropts = {
 						inputs: opts.inputs || $this.find('input').toArray()
 					};
@@ -1387,13 +1518,17 @@
 		else
 			return this;
 	};
+	$.fn.datepicker = datepickerPlugin;
 
 	var defaults = $.fn.datepicker.defaults = {
 		autoclose: false,
 		beforeShowDay: $.noop,
+		beforeShowMonth: $.noop,
 		calendarWeeks: false,
 		clearBtn: false,
+		toggleActive: false,
 		daysOfWeekDisabled: [],
+		datesDisabled: [],
 		endDate: Infinity,
 		forceParse: true,
 		format: 'mm/dd/yyyy',
@@ -1408,7 +1543,11 @@
 		startView: 0,
 		todayBtn: false,
 		todayHighlight: false,
-		weekStart: 0
+		weekStart: 0,
+		disableTouchKeyboard: false,
+		enableOnReadonly: true,
+		container: 'body',
+		immediateUpdates: false
 	};
 	var locale_opts = $.fn.datepicker.locale_opts = [
 		'format',
@@ -1536,7 +1675,7 @@
 			function match_part(){
 				var m = this.slice(0, parts[i].length),
 					p = parts[i].slice(0, m.length);
-				return m === p;
+				return m.toLowerCase() === p.toLowerCase();
 			}
 			if (parts.length === fparts.length){
 				var cnt;
@@ -1598,9 +1737,9 @@
 		},
 		headTemplate: '<thead>'+
 							'<tr>'+
-								'<th class="prev">&laquo;</th>'+
+								'<th class="prev">&#171;</th>'+
 								'<th colspan="5" class="datepicker-switch"></th>'+
-								'<th class="next">&raquo;</th>'+
+								'<th class="next">&#187;</th>'+
 							'</tr>'+
 						'</thead>',
 		contTemplate: '<tbody><tr><td colspan="7"></td></tr></tbody>',
@@ -1648,6 +1787,9 @@
 		return this;
 	};
 
+	/* DATEPICKER VERSION
+	 * =================== */
+	$.fn.datepicker.version =  "1.4.1-dev";
 
 	/* DATEPICKER DATA-API
 	* ================== */
@@ -1661,11 +1803,11 @@
 				return;
 			e.preventDefault();
 			// component click requires us to explicitly show it
-			$this.datepicker('show');
+			datepickerPlugin.call($this, 'show');
 		}
 	);
 	$(function(){
-		$('[data-provide="datepicker-inline"]').datepicker();
+		datepickerPlugin.call($('[data-provide="datepicker-inline"]'));
 	});
 
 }(window.jQuery));