/* =========================================================

 * bootstrap-datepicker.js

 * http://www.eyecon.ro/bootstrap-datepicker

 * =========================================================

 * Copyright 2012 Stefan Petre

 * Improvements by Andrew Rowls

 *

 * 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( $ ) {



	var $window = $(window);



	function UTCDate(){

		return new Date(Date.UTC.apply(Date, arguments));

	}

	function UTCToday(){

		var today = new Date();

		return UTCDate(today.getUTCFullYear(), today.getUTCMonth(), today.getUTCDate());

	}





	// Picker object



	var Datepicker = function(element, options) {

		var that = this;



		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, .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.picker.find('.prev i, .next i')

						.toggleClass('icon-arrow-left icon-arrow-right');

		}





		this.viewMode = this.o.startView;



		if (this.o.calendarWeeks)

			this.picker.find('tfoot th.today')

						.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.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;

			}



			o.startView = Math.max(o.startView, o.minViewMode);



			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);

			});



			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';

			}

		},

		_events: [],

		_secondaryEvents: [],

		_applyEvents: function(evs){

			for (var i=0, el, ev; i<evs.length; i++){

				el = evs[i][0];

				ev = evs[i][1];

				el.on(ev);

			}

		},

		_unapplyEvents: function(evs){

			for (var i=0, el, ev; i<evs.length; i++){

				el = evs[i][0];

				ev = evs[i][1];

				el.off(ev);

			}

		},

		_buildEvents: function(){

			if (this.isInput) { // single input

				this._events = [

					[this.element, {

						focus: $.proxy(this.show, this),

						keyup: $.proxy(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(this.update, this),

						keydown: $.proxy(this.keydown, this)

					}],

					[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._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.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.date,

				local_date = this._utc_to_local(date);



			this.element.trigger({

				type: event,

				date: local_date,

				format: $.proxy(function(altformat){

					var format = altformat || this.o.format;

					return DPGlobal.formatDate(date, format, this.o.language);

				}, this)

			});

		},



		show: function(e) {

			if (!this.isInline)

				this.picker.appendTo('body');

			this.picker.show();

			this.height = this.component ? this.component.outerHeight() : this.element.outerHeight();

			this.place();

			this._attachSecondaryEvents();

			if (e) {

				e.preventDefault();

			}

			this._trigger('show');

		},



		hide: function(e){

			if(this.isInline) return;

			if (!this.picker.is(':visible')) return;

			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');

		},



		remove: function() {

			this.hide();

			this._detachEvents();

			this._detachSecondaryEvents();

			this.picker.remove();

			delete this.element.data().datepicker;

			if (!this.isInput) {

				delete this.element.data().date;

			}

		},



		_utc_to_local: function(utc){

			return new Date(utc.getTime() + (utc.getTimezoneOffset()*60000));

		},

		_local_to_utc: function(local){

			return new Date(local.getTime() - (local.getTimezoneOffset()*60000));

		},

		_zero_time: function(local){

			return new Date(local.getFullYear(), local.getMonth(), local.getDate());

		},

		_zero_utc_time: function(utc){

			return new Date(Date.UTC(utc.getUTCFullYear(), utc.getUTCMonth(), utc.getUTCDate()));

		},



		getDate: function() {

			return this._utc_to_local(this.getUTCDate());

		},



		getUTCDate: function() {

			return this.date;

		},



		setDate: function(d) {

			this.setUTCDate(this._local_to_utc(d));

		},



		setUTCDate: function(d) {

			this.date = d;

			this.setValue();

		},



		setValue: function() {

			var formatted = this.getFormattedDate();

			if (!this.isInput) {

				if (this.component){

					this.element.find('input').val(formatted).change();

				}

			} else {

				this.element.val(formatted).change();

			}

		},



		getFormattedDate: function(format) {

			if (format === undefined)

				format = this.o.format;

			return DPGlobal.formatDate(this.date, format, this.o.language);

		},



		setStartDate: function(startDate){

			this._process_options({startDate: startDate});

			this.update();

			this.updateNavArrows();

		},



		setEndDate: function(endDate){

			this._process_options({endDate: endDate});

			this.update();

			this.updateNavArrows();

		},



		setDaysOfWeekDisabled: function(daysOfWeekDisabled){

			this._process_options({daysOfWeekDisabled: daysOfWeekDisabled});

			this.update();

			this.updateNavArrows();

		},



		place: function(){

						if(this.isInline) return;

			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;

			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;



			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 {

				// Default to left

				this.picker.addClass('datepicker-orient-left');

				if (offset.left < 0)

					left -= offset.left - visualPadding;

				else if (offset.left + calendarWidth > windowWidth)

					left = windowWidth - calendarWidth - visualPadding;

			}



			// 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, bottom_overflow;

			if (yorient === 'auto') {

				top_overflow = -scrollTop + offset.top - calendarHeight;

				bottom_overflow = scrollTop + windowHeight - (offset.top + height + calendarHeight);

				if (Math.max(top_overflow, bottom_overflow) === bottom_overflow)

					yorient = 'top';

				else

					yorient = 'bottom';

			}

			this.picker.addClass('datepicker-orient-' + yorient);

			if (yorient === 'top')

				top += height;

			else

				top -= calendarHeight + parseInt(this.picker.css('padding-top'));



			this.picker.css({

				top: top,

				left: left,

				zIndex: zIndex

			});

		},



		_allow_update: true,

		update: function(){

			if (!this._allow_update) return;



			var oldDate = new Date(this.date),

				date, fromArgs = false;

			if(arguments && arguments.length && (typeof arguments[0] === 'string' || arguments[0] instanceof Date)) {

				date = arguments[0];

				if (date instanceof Date)

					date = this._local_to_utc(date);

				fromArgs = true;

			} else {

				date = this.isInput ? this.element.val() : this.element.data('date') || this.element.find('input').val();

				delete this.element.data().date;

			}



			this.date = DPGlobal.parseDate(date, this.o.format, this.o.language);



			if (fromArgs) {

				// setting date by clicking

				this.setValue();

			} else if (date) {

				// setting date by typing

				if (oldDate.getTime() !== this.date.getTime())

					this._trigger('changeDate');

			} else {

				// clearing date

				this._trigger('clearDate');

			}



			if (this.date < this.o.startDate) {

				this.viewDate = new Date(this.o.startDate);

				this.date = new Date(this.o.startDate);

			} else if (this.date > this.o.endDate) {

				this.viewDate = new Date(this.o.endDate);

				this.date = new Date(this.o.endDate);

			} else {

				this.viewDate = new Date(this.date);

				this.date = new Date(this.date);

			}

			this.fill();

		},



		fillDow: function(){

			var dowCnt = this.o.weekStart,

			html = '<tr>';

			if(this.o.calendarWeeks){

				var cell = '<th class="cw">&nbsp;</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>';

			}

			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(),

				currentDate = this.date.valueOf(),

				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');

			}

			// 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 (currentDate && date.valueOf() == currentDate) {

				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 (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');

				}

			}

			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,

				currentDate = this.date && this.date.valueOf(),

				tooltip;

			this.picker.find('.datepicker-days thead th.datepicker-switch')

						.text(dates[this.o.language].months[month]+' '+year);

			this.picker.find('tfoot th.today')

						.text(dates[this.o.language].today)

						.toggle(this.o.todayBtn !== false);

			this.picker.find('tfoot th.clear')

						.text(dates[this.o.language].clear)

						.toggle(this.o.clearBtn !== false);

			this.updateNavArrows();

			this.fillMonths();

			var prevMonth = UTCDate(year, month-1, 28,0,0,0,0),

				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);

			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(+ws + (7 + 4 - ws.getUTCDay()) % 7 * 864e5),

							// First Thursday of year, year from thursday

							yth = new Date(+(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>');

				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 currentYear = this.date && this.date.getUTCFullYear();



			var months = this.picker.find('.datepicker-months')

						.find('th:eq(1)')

							.text(year)

							.end()

						.find('span').removeClass('active');

			if (currentYear && currentYear == year) {

				months.eq(this.date.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');

			}



			html = '';

			year = parseInt(year/10, 10) * 10;

			var yearCont = this.picker.find('.datepicker-years')

								.find('th:eq(1)')

									.text(year + '-' + (year + 9))

									.end()

								.find('td');

			year -= 1;

			for (var i = -1; i < 11; i++) {

				html += '<span class="year'+(i == -1 ? ' old' : i == 10 ? ' new' : '')+(currentYear == year ? ' active' : '')+(year < startYear || year > endYear ? ' disabled' : '')+'">'+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.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.picker.find('.next').css({visibility: 'hidden'});

					} else {

						this.picker.find('.next').css({visibility: 'visible'});

					}

					break;

			}

		},



		click: function(e) {

			e.preventDefault();

			var target = $(e.target).closest('span, td, th');

			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':

								var element;

								if (this.isInput)

									element = this.element;

								else if (this.component)

									element = this.element.find('input');

								if (element)

									element.val("").change();

								this._trigger('changeDate');

								this.update();

								if (this.o.autoclose)

									this.hide();

								break;

						}

						break;

					case 'span':

						if (!target.is('.disabled')) {

							this.viewDate.setUTCDate(1);

							if (target.is('.month')) {

								var day = 1;

								var month = target.parent().find('span').index(target);

								var year = this.viewDate.getUTCFullYear();

								this.viewDate.setUTCMonth(month);

								this._trigger('changeMonth', this.viewDate);

								if (this.o.minViewMode === 1) {

									this._setDate(UTCDate(year, month, day,0,0,0,0));

								}

							} else {

								var year = parseInt(target.text(), 10)||0;

								var day = 1;

								var month = 0;

								this.viewDate.setUTCFullYear(year);

								this._trigger('changeYear', this.viewDate);

								if (this.o.minViewMode === 2) {

									this._setDate(UTCDate(year, month, day,0,0,0,0));

								}

							}

							this.showMode(-1);

							this.fill();

						}

						break;

					case 'td':

						if (target.is('.day') && !target.is('.disabled')){

							var day = parseInt(target.text(), 10)||1;

							var year = this.viewDate.getUTCFullYear(),

								month = this.viewDate.getUTCMonth();

							if (target.is('.old')) {

								if (month === 0) {

									month = 11;

									year -= 1;

								} else {

									month -= 1;

								}

							} else if (target.is('.new')) {

								if (month == 11) {

									month = 0;

									year += 1;

								} else {

									month += 1;

								}

							}

							this._setDate(UTCDate(year, month, day,0,0,0,0));

						}

						break;

				}

			}

		},



		_setDate: function(date, which){

			if (!which || which == 'date')

				this.date = new Date(date);

			if (!which || which  == 'view')

				this.viewDate = new Date(date);

			this.fill();

			this.setValue();

			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 (!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(':not(:visible)')){

				if (e.keyCode == 27) // allow escape to hide and re-show picker

					this.show();

				return;

			}

			var dateChanged = false,

				dir, day, month,

				newDate, newViewDate;

			switch(e.keyCode){

				case 27: // escape

					this.hide();

					e.preventDefault();

					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.date, dir);

						newViewDate = this.moveYear(this.viewDate, dir);

						this._trigger('changeYear', this.viewDate);

					} else if (e.shiftKey){

						newDate = this.moveMonth(this.date, dir);

						newViewDate = this.moveMonth(this.viewDate, dir);

						this._trigger('changeMonth', this.viewDate);

					} else {

						newDate = new Date(this.date);

						newDate.setUTCDate(this.date.getUTCDate() + dir);

						newViewDate = new Date(this.viewDate);

						newViewDate.setUTCDate(this.viewDate.getUTCDate() + dir);

					}

					if (this.dateWithinRange(newDate)){

						this.date = newDate;

						this.viewDate = newViewDate;

						this.setValue();

						this.update();

						e.preventDefault();

						dateChanged = true;

					}

					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.date, dir);

						newViewDate = this.moveYear(this.viewDate, dir);

						this._trigger('changeYear', this.viewDate);

					} else if (e.shiftKey){

						newDate = this.moveMonth(this.date, dir);

						newViewDate = this.moveMonth(this.viewDate, dir);

						this._trigger('changeMonth', this.viewDate);

					} else {

						newDate = new Date(this.date);

						newDate.setUTCDate(this.date.getUTCDate() + dir * 7);

						newViewDate = new Date(this.viewDate);

						newViewDate.setUTCDate(this.viewDate.getUTCDate() + dir * 7);

					}

					if (this.dateWithinRange(newDate)){

						this.date = newDate;

						this.viewDate = newViewDate;

						this.setValue();

						this.update();

						e.preventDefault();

						dateChanged = true;

					}

					break;

				case 13: // enter

					this.hide();

					e.preventDefault();

					break;

				case 9: // tab

					this.hide();

					break;

			}

			if (dateChanged){

				this._trigger('changeDate');

				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(2, this.viewMode + dir));

			}

			/*

				vitalets: fixing bug of very special conditions:

				jquery 1.7.1 + webkit + show inline datepicker in bootstrap popover.

				Method show() does not set display css correctly and datepicker is not shown.

				Changed to .css('display', 'block') solve the problem.

				See https://github.com/vitalets/x-editable/issues/37



				In jquery 1.7.2+ everything works fine.

			*/

			//this.picker.find('>div').hide().filter('.datepicker-'+DPGlobal.modes[this.viewMode].clsName).show();

			this.picker.find('>div').hide().filter('.datepicker-'+DPGlobal.modes[this.viewMode].clsName).css('display', 'block');

			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;



		$(this.inputs)

			.datepicker(options)

			.bind('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.date; });

			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){

			var dp = $(e.target).data('datepicker'),

				new_date = dp.getUTCDate(),

				i = $.inArray(e.target, this.inputs),

				l = this.inputs.length;

			if (i == -1) return;



			if (new_date < this.dates[i]){

				// Date being moved earlier/left

				while (i>=0 && new_date < this.dates[i]){

					this.pickers[i--].setUTCDate(new_date);

				}

			}

			else if (new_date > this.dates[i]){

				// Date being moved later/right

				while (i<l && new_date > this.dates[i]){

					this.pickers[i++].setUTCDate(new_date);

				}

			}

			this.updateDates();

		},

		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());

		for (var key in data)

			if (prefix.test(key)){

				inkey = key.replace(replace, function(_,a){ return a.toLowerCase(); });

				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;

	$.fn.datepicker = function ( option ) {

		var args = Array.apply(null, arguments);

		args.shift();

		var internal_return,

			this_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.is('.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)

					return false;

			}

		});

		if (internal_return !== undefined)

			return internal_return;

		else

			return this;

	};



	var defaults = $.fn.datepicker.defaults = {

		autoclose: false,

		beforeShowDay: $.noop,

		calendarWeeks: false,

		clearBtn: false,

		daysOfWeekDisabled: [],

		endDate: Infinity,

		forceParse: true,

		format: 'mm/dd/yyyy',

		keyboardNavigation: true,

		language: 'en',

		minViewMode: 0,

		orientation: "auto",

		rtl: false,

		startDate: -Infinity,

		startView: 0,

		todayBtn: false,

		todayHighlight: false,

		weekStart: 0

	};

	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", "Sunday"],

			daysShort: ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"],

			daysMin: ["Su", "Mo", "Tu", "We", "Th", "Fr", "Sa", "Su"],

			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"

		}

	};



	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){

			// 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 instanceof Date) return date;

			if (typeof format === 'string')

				format = DPGlobal.parseFormat(format);

			if (/^[\-+]\d+[dmwy]([\s,]+[\-+]\d+[dmwy])*$/.test(date)) {

				var part_re = /([\-+]\d+)([dmwy])/,

					parts = date.match(/([\-+]\d+)([dmwy])/g),

					part, dir;

				date = new Date();

				for (var 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);

			}

			var parts = date && date.match(this.nonpunctuation) || [],

				date = new Date(),

				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, part;

			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

			if (parts.length == fparts.length) {

				for (var 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(function(){

									var m = this.slice(0, parts[i].length),

										p = parts[i].slice(0, m.length);

									return m == p;

								});

								val = $.inArray(filtered[0], dates[language].months) + 1;

								break;

							case 'M':

								filtered = $(dates[language].monthsShort).filter(function(){

									var m = this.slice(0, parts[i].length),

										p = parts[i].slice(0, m.length);

									return m == p;

								});

								val = $.inArray(filtered[0], dates[language].monthsShort) + 1;

								break;

						}

					}

					parsed[part] = val;

				}

				for (var i=0, _date, s; 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 (typeof format === 'string')

				format = DPGlobal.parseFormat(format);

			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;

			var date = [],

				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 class="prev">&laquo;</th>'+

								'<th colspan="5" class="datepicker-switch"></th>'+

								'<th class="next">&raquo;</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 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

			$this.datepicker('show');

		}

	);

	$(function(){

		$('[data-provide="datepicker-inline"]').datepicker();

	});



}( window.jQuery ));