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/* http://keith-wood.name/datepick.html
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   Date picker for jQuery v5.0.0.
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   Written by Keith Wood (kbwood{at}iinet.com.au) February 2010.
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   Licensed under the MIT (https://github.com/jquery/jquery/blob/master/MIT-LICENSE.txt) licence. 
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   Please attribute the author if you use it. */
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(function($) { // Hide scope, no $ conflict
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	var pluginName = 'datepick';
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11
 
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	/** Create the datepicker plugin.
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		<p>Sets an input field to popup a calendar for date entry,
14
			or a <code>div</code> or <code>span</code> to show an inline calendar.</p>
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		<p>Expects HTML like:</p>
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		<pre>&lt;input type="text"> or &lt;div>&lt;/div></pre>
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		<p>Provide inline configuration like:</p>
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		<pre>&lt;input type="text" data-datepick="name: 'value'"/></pre>
19
	 	@module Datepick
20
		@augments JQPlugin
21
		@example $(selector).datepick()
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 $(selector).datepick({minDate: 0, maxDate: '+1m +1w'}) */
23
	$.JQPlugin.createPlugin({
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25
		/** The name of the plugin. */
26
		name: pluginName,
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28
		/** Default template for generating a datepicker.
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			Insert anywhere: '{l10n:name}' to insert localised value for name,
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			'{link:name}' to insert a link trigger for command name,
31
			'{button:name}' to insert a button trigger for command name,
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			'{popup:start}...{popup:end}' to mark a section for inclusion in a popup datepicker only,
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			'{inline:start}...{inline:end}' to mark a section for inclusion in an inline datepicker only.
34
			@property picker {string} Overall structure: '{months}' to insert calendar months.
35
			@property monthRow {string} One row of months: '{months}' to insert calendar months.
36
			@property month {string} A single month: '{monthHeader<em>:dateFormat</em>}' to insert the month header -
37
						<em>dateFormat</em> is optional and defaults to 'MM yyyy',
38
						'{weekHeader}' to insert a week header, '{weeks}' to insert the month's weeks.
39
			@property weekHeader {string} A week header: '{days}' to insert individual day names.
40
			@property dayHeader {string} Individual day header: '{day}' to insert day name.
41
			@property week {string} One week of the month: '{days}' to insert the week's days,
42
						'{weekOfYear}' to insert week of year.
43
			@property day {string} An individual day: '{day}' to insert day value.
44
			@property monthSelector {string} jQuery selector, relative to picker, for a single month.
45
			@property daySelector {string} jQuery selector, relative to picker, for individual days.
46
			@property rtlClass {string} Class for right-to-left (RTL) languages.
47
			@property multiClass {string} Class for multi-month datepickers.
48
			@property defaultClass {string} Class for selectable dates.
49
			@property selectedClass {string} Class for currently selected dates.
50
			@property highlightedClass {string} Class for highlighted dates.
51
			@property todayClass {string} Class for today.
52
			@property otherMonthClass {string} Class for days from other months.
53
			@property weekendClass {string} Class for days on weekends.
54
			@property commandClass {string} Class prefix for commands.
55
			@property commandButtonClass {string} Extra class(es) for commands that are buttons.
56
			@property commandLinkClass {string} Extra class(es) for commands that are links.
57
			@property disabledClass {string} Class for disabled commands. */
58
		defaultRenderer: {
59
			picker: '<div class="datepick">' +
60
			'<div class="datepick-nav">{link:prev}{link:today}{link:next}</div>{months}' +
61
			'{popup:start}<div class="datepick-ctrl">{link:clear}{link:close}</div>{popup:end}' +
62
			'<div class="datepick-clear-fix"></div></div>',
63
			monthRow: '<div class="datepick-month-row">{months}</div>',
64
			month: '<div class="datepick-month"><div class="datepick-month-header">{monthHeader}</div>' +
65
			'<table><thead>{weekHeader}</thead><tbody>{weeks}</tbody></table></div>',
66
			weekHeader: '<tr>{days}</tr>',
67
			dayHeader: '<th>{day}</th>',
68
			week: '<tr>{days}</tr>',
69
			day: '<td>{day}</td>',
70
			monthSelector: '.datepick-month',
71
			daySelector: 'td',
72
			rtlClass: 'datepick-rtl',
73
			multiClass: 'datepick-multi',
74
			defaultClass: '',
75
			selectedClass: 'datepick-selected',
76
			highlightedClass: 'datepick-highlight',
77
			todayClass: 'datepick-today',
78
			otherMonthClass: 'datepick-other-month',
79
			weekendClass: 'datepick-weekend',
80
			commandClass: 'datepick-cmd',
81
			commandButtonClass: '',
82
			commandLinkClass: '',
83
			disabledClass: 'datepick-disabled'
84
		},
85
 
86
		/** Command actions that may be added to a layout by name.
87
			<ul>
88
			<li>prev - Show the previous month (based on <code>monthsToStep</code> option) - <em>PageUp</em></li>
89
			<li>prevJump - Show the previous year (based on <code>monthsToJump</code> option) - <em>Ctrl+PageUp</em></li>
90
			<li>next - Show the next month (based on <code>monthsToStep</code> option) - <em>PageDown</em></li>
91
			<li>nextJump - Show the next year (based on <code>monthsToJump</code> option) - <em>Ctrl+PageDown</em></li>
92
			<li>current - Show the currently selected month or today's if none selected - <em>Ctrl+Home</em></li>
93
			<li>today - Show today's month - <em>Ctrl+Home</em></li>
94
			<li>clear - Erase the date and close the datepicker popup - <em>Ctrl+End</em></li>
95
			<li>close - Close the datepicker popup - <em>Esc</em></li>
96
			<li>prevWeek - Move the cursor to the previous week - <em>Ctrl+Up</em></li>
97
			<li>prevDay - Move the cursor to the previous day - <em>Ctrl+Left</em></li>
98
			<li>nextDay - Move the cursor to the next day - <em>Ctrl+Right</em></li>
99
			<li>nextWeek - Move the cursor to the next week - <em>Ctrl+Down</em></li>
100
			</ul>
101
			The command name is the key name and is used to add the command to a layout
102
			with '{button:name}' or '{link:name}'. Each has the following attributes.
103
			@property text {string} The field in the regional settings for the displayed text.
104
			@property status {string} The field in the regional settings for the status text.
105
			@property keystroke {object} The keystroke to trigger the action, with attributes:
106
				<code>keyCode</code> {number} the code for the keystroke,
107
				<code>ctrlKey</code> {boolean} <code>true</code> if <em>Ctrl</em> is required,
108
				<code>altKey</code> {boolean} <code>true</code> if <em>Alt</em> is required,
109
				<code>shiftKey</code> {boolean} <code>true</code> if <em>Shift</em> is required.
110
			@property enabled {DatepickCommandEnabled} The function that indicates the command is enabled.
111
			@property date {DatepickCommandDate} The function to get the date associated with this action.
112
			@property action {DatepickCommandAction} The function that implements the action. */
113
		commands: {
114
			prev: {text: 'prevText', status: 'prevStatus', // Previous month
115
				keystroke: {keyCode: 33}, // Page up
116
				enabled: function(inst) {
117
					var minDate = inst.curMinDate();
118
					return (!minDate || plugin.add(plugin.day(
119
						plugin._applyMonthsOffset(plugin.add(plugin.newDate(inst.drawDate),
120
						1 - inst.options.monthsToStep, 'm'), inst), 1), -1, 'd').
121
						getTime() >= minDate.getTime()); },
122
				date: function(inst) {
123
					return plugin.day(plugin._applyMonthsOffset(plugin.add(
124
						plugin.newDate(inst.drawDate), -inst.options.monthsToStep, 'm'), inst), 1); },
125
				action: function(inst) {
126
					plugin.changeMonth(this, -inst.options.monthsToStep); }
127
			},
128
			prevJump: {text: 'prevJumpText', status: 'prevJumpStatus', // Previous year
129
				keystroke: {keyCode: 33, ctrlKey: true}, // Ctrl + Page up
130
				enabled: function(inst) {
131
					var minDate = inst.curMinDate();
132
					return (!minDate || plugin.add(plugin.day(
133
						plugin._applyMonthsOffset(plugin.add(plugin.newDate(inst.drawDate),
134
						1 - inst.options.monthsToJump, 'm'), inst), 1), -1, 'd').
135
						getTime() >= minDate.getTime()); },
136
				date: function(inst) {
137
					return plugin.day(plugin._applyMonthsOffset(plugin.add(
138
						plugin.newDate(inst.drawDate), -inst.options.monthsToJump, 'm'), inst), 1); },
139
				action: function(inst) {
140
					plugin.changeMonth(this, -inst.options.monthsToJump); }
141
			},
142
			next: {text: 'nextText', status: 'nextStatus', // Next month
143
				keystroke: {keyCode: 34}, // Page down
144
				enabled: function(inst) {
145
					var maxDate = inst.get('maxDate');
146
					return (!maxDate || plugin.day(plugin._applyMonthsOffset(plugin.add(
147
						plugin.newDate(inst.drawDate), inst.options.monthsToStep, 'm'), inst), 1).
148
						getTime() <= maxDate.getTime()); },
149
				date: function(inst) {
150
					return plugin.day(plugin._applyMonthsOffset(plugin.add(
151
						plugin.newDate(inst.drawDate), inst.options.monthsToStep, 'm'), inst), 1); },
152
				action: function(inst) {
153
					plugin.changeMonth(this, inst.options.monthsToStep); }
154
			},
155
			nextJump: {text: 'nextJumpText', status: 'nextJumpStatus', // Next year
156
				keystroke: {keyCode: 34, ctrlKey: true}, // Ctrl + Page down
157
				enabled: function(inst) {
158
					var maxDate = inst.get('maxDate');
159
					return (!maxDate || plugin.day(plugin._applyMonthsOffset(plugin.add(
160
						plugin.newDate(inst.drawDate), inst.options.monthsToJump, 'm'), inst), 1).
161
						getTime() <= maxDate.getTime()); },
162
				date: function(inst) {
163
					return plugin.day(plugin._applyMonthsOffset(plugin.add(
164
						plugin.newDate(inst.drawDate), inst.options.monthsToJump, 'm'), inst), 1); },
165
				action: function(inst) {
166
					plugin.changeMonth(this, inst.options.monthsToJump); }
167
			},
168
			current: {text: 'currentText', status: 'currentStatus', // Current month
169
				keystroke: {keyCode: 36, ctrlKey: true}, // Ctrl + Home
170
				enabled: function(inst) {
171
					var minDate = inst.curMinDate();
172
					var maxDate = inst.get('maxDate');
173
					var curDate = inst.selectedDates[0] || plugin.today();
174
					return (!minDate || curDate.getTime() >= minDate.getTime()) &&
175
						(!maxDate || curDate.getTime() <= maxDate.getTime()); },
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				date: function(inst) {
177
					return inst.selectedDates[0] || plugin.today(); },
178
				action: function(inst) {
179
					var curDate = inst.selectedDates[0] || plugin.today();
180
					plugin.showMonth(this, curDate.getFullYear(), curDate.getMonth() + 1); }
181
			},
182
			today: {text: 'todayText', status: 'todayStatus', // Today's month
183
				keystroke: {keyCode: 36, ctrlKey: true}, // Ctrl + Home
184
				enabled: function(inst) {
185
					var minDate = inst.curMinDate();
186
					var maxDate = inst.get('maxDate');
187
					return (!minDate || plugin.today().getTime() >= minDate.getTime()) &&
188
						(!maxDate || plugin.today().getTime() <= maxDate.getTime()); },
189
				date: function(inst) { return plugin.today(); },
190
				action: function(inst) { plugin.showMonth(this); }
191
			},
192
			clear: {text: 'clearText', status: 'clearStatus', // Clear the datepicker
193
				keystroke: {keyCode: 35, ctrlKey: true}, // Ctrl + End
194
				enabled: function(inst) { return true; },
195
				date: function(inst) { return null; },
196
				action: function(inst) { plugin.clear(this); }
197
			},
198
			close: {text: 'closeText', status: 'closeStatus', // Close the datepicker
199
				keystroke: {keyCode: 27}, // Escape
200
				enabled: function(inst) { return true; },
201
				date: function(inst) { return null; },
202
				action: function(inst) { plugin.hide(this); }
203
			},
204
			prevWeek: {text: 'prevWeekText', status: 'prevWeekStatus', // Previous week
205
				keystroke: {keyCode: 38, ctrlKey: true}, // Ctrl + Up
206
				enabled: function(inst) {
207
					var minDate = inst.curMinDate();
208
					return (!minDate || plugin.add(plugin.newDate(inst.drawDate), -7, 'd').
209
						getTime() >= minDate.getTime()); },
210
				date: function(inst) { return plugin.add(plugin.newDate(inst.drawDate), -7, 'd'); },
211
				action: function(inst) { plugin.changeDay(this, -7); }
212
			},
213
			prevDay: {text: 'prevDayText', status: 'prevDayStatus', // Previous day
214
				keystroke: {keyCode: 37, ctrlKey: true}, // Ctrl + Left
215
				enabled: function(inst) {
216
					var minDate = inst.curMinDate();
217
					return (!minDate || plugin.add(plugin.newDate(inst.drawDate), -1, 'd').
218
						getTime() >= minDate.getTime()); },
219
				date: function(inst) { return plugin.add(plugin.newDate(inst.drawDate), -1, 'd'); },
220
				action: function(inst) { plugin.changeDay(this, -1); }
221
			},
222
			nextDay: {text: 'nextDayText', status: 'nextDayStatus', // Next day
223
				keystroke: {keyCode: 39, ctrlKey: true}, // Ctrl + Right
224
				enabled: function(inst) {
225
					var maxDate = inst.get('maxDate');
226
					return (!maxDate || plugin.add(plugin.newDate(inst.drawDate), 1, 'd').
227
						getTime() <= maxDate.getTime()); },
228
				date: function(inst) { return plugin.add(plugin.newDate(inst.drawDate), 1, 'd'); },
229
				action: function(inst) { plugin.changeDay(this, 1); }
230
			},
231
			nextWeek: {text: 'nextWeekText', status: 'nextWeekStatus', // Next week
232
				keystroke: {keyCode: 40, ctrlKey: true}, // Ctrl + Down
233
				enabled: function(inst) {
234
					var maxDate = inst.get('maxDate');
235
					return (!maxDate || plugin.add(plugin.newDate(inst.drawDate), 7, 'd').
236
						getTime() <= maxDate.getTime()); },
237
				date: function(inst) { return plugin.add(plugin.newDate(inst.drawDate), 7, 'd'); },
238
				action: function(inst) { plugin.changeDay(this, 7); }
239
			}
240
		},
241
 
242
		/** Determine whether a command is enabled.
243
			@callback DatepickCommandEnabled
244
			@param inst {object} The current instance settings.
245
			@return {boolean} <code>true</code> if this command is enabled, <code>false</code> if not.
246
			@example enabled: function(inst) {
247
	return !!inst.curMinDate();
248
 } */
249
 
250
		/** Calculate the representative date for a command.
251
			@callback DatepickCommandDate
252
			@param inst {object} The current instance settings.
253
			@return {Date} A date appropriate for this command.
254
			@example date: function(inst) {
255
	return inst.curMinDate();
256
 } */
257
 
258
		/** Perform the action for a command.
259
			@callback DatepickCommandAction
260
			@param inst {object} The current instance settings.
261
			@example date: function(inst) {
262
	$.datepick.setDate(inst.elem, inst.curMinDate());
263
 } */
264
 
265
		/** Calculate the week of the year for a date.
266
			@callback DatepickCalculateWeek
267
			@param date {Date} The date to evaluate.
268
			@return {number} The week of the year.
269
			@example calculateWeek: function(date) {
270
	return Math.floor(($.datepick.dayOfYear(date) - 1) / 7) + 1;
271
 } */
272
 
273
		/** Provide information about an individual date shown in the calendar.
274
			@callback DatepickOnDate
275
			@param date {Date} The date to evaluate.
276
			@return {object} Information about that date, with the properties above.
277
			@property selectable {boolean} <code>true</code> if this date can be selected.
278
			@property dateClass {string} Class(es) to be applied to the date.
279
			@property content {string} The date cell content.
280
			@property tooltip {string} A popup tooltip for the date.
281
			@example onDate: function(date) {
282
	return {selectable: date.getDay() > 0 && date.getDay() &lt; 5,
283
		dateClass: date.getDay() == 4 ? 'last-day' : ''};
284
 } */
285
 
286
		/** Update the datepicker display.
287
			@callback DatepickOnShow
288
			@param picker {jQuery} The datepicker <code>div</code> to be shown.
289
			@param inst {object} The current instance settings.
290
			@example onShow: function(picker, inst) {
291
	picker.append('&lt;button type="button">Hi&lt;/button>').
292
		find('button:last').click(function() {
293
			alert('Hi!');
294
		});
295
 } */
296
 
297
		/** React to navigating through the months/years.
298
			@callback DatepickOnChangeMonthYear
299
			@param year {number} The new year.
300
			@param month {number} The new month (1 to 12).
301
			@example onChangeMonthYear: function(year, month) {
302
	alert('Now in ' + month + '/' + year);
303
 } */
304
 
305
		/** Datepicker on select callback.
306
			Triggered when a date is selected.
307
			@callback DatepickOnSelect
308
			@param dates {Date[]} The selected date(s).
309
			@example onSelect: function(dates) {
310
 	alert('Selected ' + dates);
311
 } */
312
 
313
		/** Datepicker on close callback.
314
			Triggered when a popup calendar is closed.
315
			@callback DatepickOnClose
316
			@param dates {Date[]} The selected date(s).
317
			@example onClose: function(dates) {
318
 	alert('Selected ' + dates);
319
 } */
320
 
321
		/** Default settings for the plugin.
322
			@property [pickerClass=''] {string} CSS class to add to this instance of the datepicker.
323
			@property [showOnFocus=true] {boolean} <code>true</code> for popup on focus, <code>false</code> for not.
324
			@property [showTrigger=null] {string|Element|jQuery} Element to be cloned for a trigger, <code>null</code> for none.
325
			@property [showAnim='show'] {string} Name of jQuery animation for popup, '' for no animation.
326
			@property [showOptions=null] {object} Options for enhanced animations.
327
			@property [showSpeed='normal'] {string} Duration of display/closure.
328
			@property [popupContainer=null] {string|Element|jQuery} The element to which a popup calendar is added, <code>null</code> for body.
329
			@property [alignment='bottom'] {string} Alignment of popup - with nominated corner of input:
330
						'top' or 'bottom' aligns depending on language direction,
331
						'topLeft', 'topRight', 'bottomLeft', 'bottomRight'.
332
			@property [fixedWeeks=false] {boolean} <code>true</code> to always show 6 weeks, <code>false</code> to only show as many as are needed.
333
			@property [firstDay=0] {number} First day of the week, 0 = Sunday, 1 = Monday, etc.
334
			@property [calculateWeek=this.iso8601Week] {DatepickCalculateWeek} Calculate week of the year from a date, <code>null</code> for ISO8601.
335
			@property [monthsToShow=1] {number|number[]} How many months to show, cols or [rows, cols].
336
			@property [monthsOffset=0] {number} How many months to offset the primary month by;
337
						may be a function that takes the date and returns the offset.
338
			@property [monthsToStep=1] {number} How many months to move when prev/next clicked.
339
			@property [monthsToJump=12] {number} How many months to move when large prev/next clicked.
340
			@property [useMouseWheel=true] {boolean} <code>true</code> to use mousewheel if available, <code>false</code> to never use it.
341
			@property [changeMonth=true] {boolean} <code>true</code> to change month/year via drop-down, <code>false</code> for navigation only.
342
			@property [yearRange='c-10:c+10'] {string} Range of years to show in drop-down: 'any' for direct text entry
343
						or 'start:end', where start/end are '+-nn' for relative to today
344
						or 'c+-nn' for relative to the currently selected date
345
						or 'nnnn' for an absolute year.
346
			@property [shortYearCutoff='+10'] {string} Cutoff for two-digit year in the current century.
347
			@property [showOtherMonths=false] {boolean} <code>true</code> to show dates from other months, <code>false</code> to not show them.
348
			@property [selectOtherMonths=false] {boolean} <code>true</code> to allow selection of dates from other months too.
349
			@property [defaultDate=null] {string|number|Date} Date to show if no other selected.
350
			@property [selectDefaultDate=false] {boolean} <code>true</code> to pre-select the default date if no other is chosen.
351
			@property [minDate=null] {string|number|Date} The minimum selectable date.
352
			@property [maxDate=null] {string|number|Date} The maximum selectable date.
353
			@property [dateFormat='mm/dd/yyyy'] {string} Format for dates.
354
			@property [autoSize=false] {boolean} <code>true</code> to size the input field according to the date format.
355
			@property [rangeSelect=false] {boolean} Allows for selecting a date range on one date picker.
356
			@property [rangeSeparator=' - '] {string} Text between two dates in a range.
357
			@property [multiSelect=0] {number} Maximum number of selectable dates, zero for single select.
358
			@property [multiSeparator=','] {string} Text between multiple dates.
359
			@property [onDate=null] {DatepickOnDate} Callback as a date is added to the datepicker.
360
			@property [onShow=null] {DatepickOnShow} Callback just before a datepicker is shown.
361
			@property [onChangeMonthYear=null] {DatepickOnChangeMonthYear} Callback when a new month/year is selected.
362
			@property [onSelect=null] {DatepickOnSelect} Callback when a date is selected.
363
			@property [onClose=null] {DatepickOnClose} Callback when a datepicker is closed.
364
			@property [altField=null] {string|Element|jQuery} Alternate field to update in synch with the datepicker.
365
			@property [altFormat=null] {string} Date format for alternate field, defaults to <code>dateFormat</code>.
366
			@property [constrainInput=true] {boolean} <code>true</code> to constrain typed input to <code>dateFormat</code> allowed characters.
367
			@property [commandsAsDateFormat=false] {boolean} <code>true</code> to apply
368
						<code><a href="#formatDate">formatDate</a></code> to the command texts.
369
			@property [commands=this.commands] {object} Command actions that may be added to a layout by name. */
370
		defaultOptions: {
371
			pickerClass: '',
372
			showOnFocus: true,
373
			showTrigger: null,
374
			showAnim: 'show',
375
			showOptions: {},
376
			showSpeed: 'normal',
377
			popupContainer: null,
378
			alignment: 'bottom',
379
			fixedWeeks: false,
380
			firstDay: 0,
381
			calculateWeek: null, // this.iso8601Week,
382
			monthsToShow: 1,
383
			monthsOffset: 0,
384
			monthsToStep: 1,
385
			monthsToJump: 12,
386
			useMouseWheel: true,
387
			changeMonth: true,
388
			yearRange: 'c-10:c+10',
389
			shortYearCutoff: '+10',
390
			showOtherMonths: false,
391
			selectOtherMonths: false,
392
			defaultDate: null,
393
			selectDefaultDate: false,
394
			minDate: null,
395
			maxDate: null,
396
			dateFormat: 'mm/dd/yyyy',
397
			autoSize: false,
398
			rangeSelect: false,
399
			rangeSeparator: ' - ',
400
			multiSelect: 0,
401
			multiSeparator: ',',
402
			onDate: null,
403
			onShow: null,
404
			onChangeMonthYear: null,
405
			onSelect: null,
406
			onClose: null,
407
			altField: null,
408
			altFormat: null,
409
			constrainInput: true,
410
			commandsAsDateFormat: false,
411
			commands: {} // this.commands
412
		},
413
 
414
		/** Localisations for the plugin.
415
			Entries are objects indexed by the language code ('' being the default US/English).
416
			Each object has the following attributes.
417
			@property [monthNames=['January','February','March','April','May','June','July','August','September','October','November','December']]
418
						The long names of the months.
419
			@property [monthNamesShort=['Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec']]
420
						The short names of the months.
421
			@property [dayNames=['Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday']]
422
						The long names of the days of the week.
423
			@property [dayNamesShort=['Sun','Mon','Tue','Wed','Thu','Fri','Sat']] The short names of the days of the week.
424
			@property [dayNamesMin=['Su','Mo','Tu','We','Th','Fr','Sa']] The minimal names of the days of the week.
425
			@property [dateFormat='mm/dd/yyyy'] {string} See options on <code><a href="#formatDate">formatDate</a></code>.
426
			@property [firstDay=0] {number} The first day of the week, Sun = 0, Mon = 1, etc.
427
			@property [renderer=this.defaultRenderer] {string} The rendering templates.
428
			@property [prevText='&lt;Prev'] {string} Text for the previous month command.
429
			@property [prevStatus='Show the previous month'] {string} Status text for the previous month command.
430
			@property [prevJumpText='&lt;&lt;'] {string} Text for the previous year command.
431
			@property [prevJumpStatus='Show the previous year'] {string} Status text for the previous year command.
432
			@property [nextText='Next&gt;'] {string} Text for the next month command.
433
			@property [nextStatus='Show the next month'] {string} Status text for the next month command.
434
			@property [nextJumpText='&gt;&gt;'] {string} Text for the next year command.
435
			@property [nextJumpStatus='Show the next year'] {string} Status text for the next year command.
436
			@property [currentText='Current'] {string} Text for the current month command.
437
			@property [currentStatus='Show the current month'] {string} Status text for the current month command.
438
			@property [todayText='Today'] {string} Text for the today's month command.
439
			@property [todayStatus='Show today\'s month'] {string} Status text for the today's month command.
440
			@property [clearText='Clear'] {string} Text for the clear command.
441
			@property [clearStatus='Clear all the dates'] {string} Status text for the clear command.
442
			@property [closeText='Close'] {string} Text for the close command.
443
			@property [closeStatus='Close the datepicker'] {string} Status text for the close command.
444
			@property [yearStatus='Change the year'] {string} Status text for year selection.
445
			@property [monthStatus='Change the month'] {string} Status text for month selection.
446
			@property [weekText='Wk'] {string} Text for week of the year column header.
447
			@property [weekStatus='Week of the year'] {string} Status text for week of the year column header.
448
			@property [dayStatus='Select DD,&nbsp;M&nbsp;d,&nbsp;yyyy'] {string} Status text for selectable days.
449
			@property [defaultStatus='Select a date'] {string} Status text shown by default.
450
			@property [isRTL=false] {boolean} <code>true</code> if language is right-to-left. */
451
		regionalOptions: { // Available regional settings, indexed by language/country code
452
			'': { // Default regional settings - English/US
453
				monthNames: ['January', 'February', 'March', 'April', 'May', 'June',
454
				'July', 'August', 'September', 'October', 'November', 'December'],
455
				monthNamesShort: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],
456
				dayNames: ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'],
457
				dayNamesShort: ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'],
458
				dayNamesMin: ['Su', 'Mo', 'Tu', 'We', 'Th', 'Fr', 'Sa'],
459
				dateFormat: 'mm/dd/yyyy',
460
				firstDay: 0,
461
				renderer: {}, // this.defaultRenderer
462
				prevText: '&lt;Prev',
463
				prevStatus: 'Show the previous month',
464
				prevJumpText: '&lt;&lt;',
465
				prevJumpStatus: 'Show the previous year',
466
				nextText: 'Next&gt;',
467
				nextStatus: 'Show the next month',
468
				nextJumpText: '&gt;&gt;',
469
				nextJumpStatus: 'Show the next year',
470
				currentText: 'Current',
471
				currentStatus: 'Show the current month',
472
				todayText: 'Today',
473
				todayStatus: 'Show today\'s month',
474
				clearText: 'Clear',
475
				clearStatus: 'Clear all the dates',
476
				closeText: 'Close',
477
				closeStatus: 'Close the datepicker',
478
				yearStatus: 'Change the year',
479
				monthStatus: 'Change the month',
480
				weekText: 'Wk',
481
				weekStatus: 'Week of the year',
482
				dayStatus: 'Select DD, M d, yyyy',
483
				defaultStatus: 'Select a date',
484
				isRTL: false
485
			}
486
		},
487
 
488
		/** Names of getter methods - those that can't be chained. */
489
		_getters: ['getDate', 'isDisabled', 'isSelectable', 'retrieveDate'],
490
 
491
		_disabled: [],
492
 
493
		_popupClass: pluginName + '-popup', // Marker for popup division
494
		_triggerClass: pluginName + '-trigger', // Marker for trigger element
495
		_disableClass: pluginName + '-disable', // Marker for disabled element
496
		_monthYearClass: pluginName + '-month-year', // Marker for month/year inputs
497
		_curMonthClass: pluginName + '-month-', // Marker for current month/year
498
		_anyYearClass: pluginName + '-any-year', // Marker for year direct input
499
		_curDoWClass: pluginName + '-dow-', // Marker for day of week
500
 
501
		_ticksTo1970: (((1970 - 1) * 365 + Math.floor(1970 / 4) - Math.floor(1970 / 100) +
502
			Math.floor(1970 / 400)) * 24 * 60 * 60 * 10000000),
503
		_msPerDay: 24 * 60 * 60 * 1000,
504
 
505
		/** The date format for use with Atom (RFC 3339/ISO 8601). */
506
		ATOM: 'yyyy-mm-dd',
507
		/** The date format for use with cookies. */
508
		COOKIE: 'D, dd M yyyy',
509
		/** The date format for full display. */
510
		FULL: 'DD, MM d, yyyy',
511
		/** The date format for use with ISO 8601. */
512
		ISO_8601: 'yyyy-mm-dd',
513
		/** The date format for Julian dates. */
514
		JULIAN: 'J',
515
		/** The date format for use with RFC 822. */
516
		RFC_822: 'D, d M yy',
517
		/** The date format for use with RFC 850. */
518
		RFC_850: 'DD, dd-M-yy',
519
		/** The date format for use with RFC 1036. */
520
		RFC_1036: 'D, d M yy',
521
		/** The date format for use with RFC 1123. */
522
		RFC_1123: 'D, d M yyyy',
523
		/** The date format for use with RFC 2822. */
524
		RFC_2822: 'D, d M yyyy',
525
		/** The date format for use with RSS (RFC 822). */
526
		RSS: 'D, d M yy',
527
		/** The date format for Windows ticks. */
528
		TICKS: '!',
529
		/** The date format for Unix timestamp. */
530
		TIMESTAMP: '@',
531
		/** The date format for use with W3C (ISO 8601). */
532
		W3C: 'yyyy-mm-dd',
533
 
534
		/** Format a date object into a string value.
535
			The format can be combinations of the following:
536
			<ul>
537
			<li>d  - day of month (no leading zero)</li>
538
			<li>dd - day of month (two digit)</li>
539
			<li>o  - day of year (no leading zeros)</li>
540
			<li>oo - day of year (three digit)</li>
541
			<li>D  - day name short</li>
542
			<li>DD - day name long</li>
543
			<li>w  - week of year (no leading zero)</li>
544
			<li>ww - week of year (two digit)</li>
545
			<li>m  - month of year (no leading zero)</li>
546
			<li>mm - month of year (two digit)</li>
547
			<li>M  - month name short</li>
548
			<li>MM - month name long</li>
549
			<li>yy - year (two digit)</li>
550
			<li>yyyy - year (four digit)</li>
551
			<li>@  - Unix timestamp (s since 01/01/1970)</li>
552
			<li>!  - Windows ticks (100ns since 01/01/0001)</li>
553
			<li>'...' - literal text</li>
554
			<li>'' - single quote</li>
555
			</ul>
556
			@param [format=dateFormat] {string} The desired format of the date.
557
			@param date {Date} The date value to format.
558
			@param [settings] {object} With the properties shown below.
559
			@property [dayNamesShort] {string[]} Abbreviated names of the days from Sunday.
560
			@property [dayNames] {string[]} Names of the days from Sunday.
561
			@property [monthNamesShort] {string[]} Abbreviated names of the months.
562
			@property [monthNames] {string[]} Names of the months.
563
			@property [calculateWeek] {DatepickCalculateWeek} Function that determines week of the year.
564
			@return {string} The date in the above format.
565
			@example var display = $.datepick.formatDate('yyyy-mm-dd', new Date(2014, 12-1, 25)) */
566
		formatDate: function(format, date, settings) {
567
			if (typeof format !== 'string') {
568
				settings = date;
569
				date = format;
570
				format = '';
571
			}
572
			if (!date) {
573
				return '';
574
			}
575
			format = format || this.defaultOptions.dateFormat;
576
			settings = settings || {};
577
			var dayNamesShort = settings.dayNamesShort || this.defaultOptions.dayNamesShort;
578
			var dayNames = settings.dayNames || this.defaultOptions.dayNames;
579
			var monthNamesShort = settings.monthNamesShort || this.defaultOptions.monthNamesShort;
580
			var monthNames = settings.monthNames || this.defaultOptions.monthNames;
581
			var calculateWeek = settings.calculateWeek || this.defaultOptions.calculateWeek;
582
			// Check whether a format character is doubled
583
			var doubled = function(match, step) {
584
				var matches = 1;
585
				while (iFormat + matches < format.length && format.charAt(iFormat + matches) === match) {
586
					matches++;
587
				}
588
				iFormat += matches - 1;
589
				return Math.floor(matches / (step || 1)) > 1;
590
			};
591
			// Format a number, with leading zeroes if necessary
592
			var formatNumber = function(match, value, len, step) {
593
				var num = '' + value;
594
				if (doubled(match, step)) {
595
					while (num.length < len) {
596
						num = '0' + num;
597
					}
598
				}
599
				return num;
600
			};
601
			// Format a name, short or long as requested
602
			var formatName = function(match, value, shortNames, longNames) {
603
				return (doubled(match) ? longNames[value] : shortNames[value]);
604
			};
605
			var output = '';
606
			var literal = false;
607
			for (var iFormat = 0; iFormat < format.length; iFormat++) {
608
				if (literal) {
609
					if (format.charAt(iFormat) === "'" && !doubled("'")) {
610
						literal = false;
611
					}
612
					else {
613
						output += format.charAt(iFormat);
614
					}
615
				}
616
				else {
617
					switch (format.charAt(iFormat)) {
618
						case 'd': output += formatNumber('d', date.getDate(), 2); break;
619
						case 'D': output += formatName('D', date.getDay(),
620
							dayNamesShort, dayNames); break;
621
						case 'o': output += formatNumber('o', this.dayOfYear(date), 3); break;
622
						case 'w': output += formatNumber('w', calculateWeek(date), 2); break;
623
						case 'm': output += formatNumber('m', date.getMonth() + 1, 2); break;
624
						case 'M': output += formatName('M', date.getMonth(),
625
							monthNamesShort, monthNames); break;
626
						case 'y':
627
							output += (doubled('y', 2) ? date.getFullYear() :
628
								(date.getFullYear() % 100 < 10 ? '0' : '') + date.getFullYear() % 100);
629
							break;
630
						case '@': output += Math.floor(date.getTime() / 1000); break;
631
						case '!': output += date.getTime() * 10000 + this._ticksTo1970; break;
632
						case "'":
633
							if (doubled("'")) {
634
								output += "'";
635
							}
636
							else {
637
								literal = true;
638
							}
639
							break;
640
						default:
641
							output += format.charAt(iFormat);
642
					}
643
				}
644
			}
645
			return output;
646
		},
647
 
648
		/** Parse a string value into a date object.
649
			See <code><a href="#formatDate">formatDate</a></code> for the possible formats, plus:
650
			<ul>
651
			<li>* - ignore rest of string</li>
652
			</ul>
653
			@param format {string} The expected format of the date ('' for default datepicker format).
654
			@param value {string} The date in the above format.
655
			@param [settings] {object} With the properties shown above.
656
			@property [shortYearCutoff] {number} the cutoff year for determining the century.
657
			@property [dayNamesShort] {string[]} abbreviated names of the days from Sunday.
658
			@property [dayNames] {string[]} names of the days from Sunday.
659
			@property [monthNamesShort] {string[]} abbreviated names of the months.
660
			@property [monthNames] {string[]} names of the months.
661
			@return {Date} The extracted date value or <code>null</code> if value is blank.
662
			@throws Errors if the format and/or value are missing, if the value doesn't match the format,
663
					or if the date is invalid.
664
			@example var date = $.datepick.parseDate('dd/mm/yyyy', '25/12/2014') */
665
		parseDate: function(format, value, settings) {
666
			if (value == null) {
667
				throw 'Invalid arguments';
668
			}
669
			value = (typeof value === 'object' ? value.toString() : value + '');
670
			if (value === '') {
671
				return null;
672
			}
673
			format = format || this.defaultOptions.dateFormat;
674
			settings = settings || {};
675
			var shortYearCutoff = settings.shortYearCutoff || this.defaultOptions.shortYearCutoff;
676
			shortYearCutoff = (typeof shortYearCutoff !== 'string' ? shortYearCutoff :
677
				this.today().getFullYear() % 100 + parseInt(shortYearCutoff, 10));
678
			var dayNamesShort = settings.dayNamesShort || this.defaultOptions.dayNamesShort;
679
			var dayNames = settings.dayNames || this.defaultOptions.dayNames;
680
			var monthNamesShort = settings.monthNamesShort || this.defaultOptions.monthNamesShort;
681
			var monthNames = settings.monthNames || this.defaultOptions.monthNames;
682
			var year = -1;
683
			var month = -1;
684
			var day = -1;
685
			var doy = -1;
686
			var shortYear = false;
687
			var literal = false;
688
			// Check whether a format character is doubled
689
			var doubled = function(match, step) {
690
				var matches = 1;
691
				while (iFormat + matches < format.length && format.charAt(iFormat + matches) === match) {
692
					matches++;
693
				}
694
				iFormat += matches - 1;
695
				return Math.floor(matches / (step || 1)) > 1;
696
			};
697
			// Extract a number from the string value
698
			var getNumber = function(match, step) {
699
				var isDoubled = doubled(match, step);
700
				var size = [2, 3, isDoubled ? 4 : 2, 11, 20]['oy@!'.indexOf(match) + 1];
701
				var digits = new RegExp('^-?\\d{1,' + size + '}');
702
				var num = value.substring(iValue).match(digits);
703
				if (!num) {
704
					throw 'Missing number at position {0}'.replace(/\{0\}/, iValue);
705
				}
706
				iValue += num[0].length;
707
				return parseInt(num[0], 10);
708
			};
709
			// Extract a name from the string value and convert to an index
710
			var getName = function(match, shortNames, longNames, step) {
711
				var names = (doubled(match, step) ? longNames : shortNames);
712
				for (var i = 0; i < names.length; i++) {
713
					if (value.substr(iValue, names[i].length).toLowerCase() === names[i].toLowerCase()) {
714
						iValue += names[i].length;
715
						return i + 1;
716
					}
717
				}
718
				throw 'Unknown name at position {0}'.replace(/\{0\}/, iValue);
719
			};
720
			// Confirm that a literal character matches the string value
721
			var checkLiteral = function() {
722
				if (value.charAt(iValue) !== format.charAt(iFormat)) {
723
					throw 'Unexpected literal at position {0}'.replace(/\{0\}/, iValue);
724
				}
725
				iValue++;
726
			};
727
			var iValue = 0;
728
			for (var iFormat = 0; iFormat < format.length; iFormat++) {
729
				if (literal) {
730
					if (format.charAt(iFormat) === "'" && !doubled("'")) {
731
						literal = false;
732
					}
733
					else {
734
						checkLiteral();
735
					}
736
				}
737
				else {
738
					switch (format.charAt(iFormat)) {
739
						case 'd': day = getNumber('d'); break;
740
						case 'D': getName('D', dayNamesShort, dayNames); break;
741
						case 'o': doy = getNumber('o'); break;
742
						case 'w': getNumber('w'); break;
743
						case 'm': month = getNumber('m'); break;
744
						case 'M': month = getName('M', monthNamesShort, monthNames); break;
745
						case 'y':
746
							var iSave = iFormat;
747
							shortYear = !doubled('y', 2);
748
							iFormat = iSave;
749
							year = getNumber('y', 2);
750
							break;
751
						case '@':
752
							var date = this._normaliseDate(new Date(getNumber('@') * 1000));
753
							year = date.getFullYear();
754
							month = date.getMonth() + 1;
755
							day = date.getDate();
756
							break;
757
						case '!':
758
							var date = this._normaliseDate(
759
								new Date((getNumber('!') - this._ticksTo1970) / 10000));
760
							year = date.getFullYear();
761
							month = date.getMonth() + 1;
762
							day = date.getDate();
763
							break;
764
						case '*': iValue = value.length; break;
765
						case "'":
766
							if (doubled("'")) {
767
								checkLiteral();
768
							}
769
							else {
770
								literal = true;
771
							}
772
							break;
773
						default: checkLiteral();
774
					}
775
				}
776
			}
777
			if (iValue < value.length) {
778
				throw 'Additional text found at end';
779
			}
780
			if (year === -1) {
781
				year = this.today().getFullYear();
782
			}
783
			else if (year < 100 && shortYear) {
784
				year += (shortYearCutoff === -1 ? 1900 : this.today().getFullYear() -
785
					this.today().getFullYear() % 100 - (year <= shortYearCutoff ? 0 : 100));
786
			}
787
			if (doy > -1) {
788
				month = 1;
789
				day = doy;
790
				for (var dim = this.daysInMonth(year, month); day > dim;
791
						dim = this.daysInMonth(year, month)) {
792
					month++;
793
					day -= dim;
794
				}
795
			}
796
			var date = this.newDate(year, month, day);
797
			if (date.getFullYear() !== year || date.getMonth() + 1 !== month || date.getDate() !== day) {
798
				throw 'Invalid date';
799
			}
800
			return date;
801
		},
802
 
803
		/** A date may be specified as an exact value or a relative one.
804
			@param dateSpec {Date|number|string} The date as an object or string
805
					in the given format or an offset - numeric days from today,
806
					or string amounts and periods, e.g. '+1m +2w'.
807
			@param defaultDate {Date} The date to use if no other supplied, may be <code>null</code>.
808
			@param [currentDate] {Date} The current date as a possible basis for relative dates,
809
					if <code>null</code> today is used.
810
			@param dateFormat {string} The expected date format - see <code><a href="#formatDate">formatDate</a></code>.
811
			@param settings {object} With the properties shown above.
812
			@property [shortYearCutoff] {number} The cutoff year for determining the century.
813
			@property [dayNamesShort] {string[]} Abbreviated names of the days from Sunday.
814
			@property [dayNames] {string[]} Names of the days from Sunday.
815
			@property [monthNamesShort] {string[]} Abbreviated names of the months.
816
			@property [monthNames] {string[]} Names of the months.
817
			@return {Date} The decoded date.
818
			@example $.datepick.determineDate('+1m +2w', new Date()) */
819
		determineDate: function(dateSpec, defaultDate, currentDate, dateFormat, settings) {
820
			if (currentDate && typeof currentDate !== 'object') {
821
				settings = dateFormat;
822
				dateFormat = currentDate;
823
				currentDate = null;
824
			}
825
			if (typeof dateFormat !== 'string') {
826
				settings = dateFormat;
827
				dateFormat = '';
828
			}
829
			var offsetString = function(offset) {
830
				try {
831
					return plugin.parseDate(dateFormat, offset, settings);
832
				}
833
				catch (e) {
834
					// Ignore
835
				}
836
				offset = offset.toLowerCase();
837
				var date = (offset.match(/^c/) && currentDate ? plugin.newDate(currentDate) : null) ||
838
					plugin.today();
839
				var pattern = /([+-]?[0-9]+)\s*(d|w|m|y)?/g;
840
				var matches = null;
841
				while (matches = pattern.exec(offset)) {
842
					date = plugin.add(date, parseInt(matches[1], 10), matches[2] || 'd');
843
				}
844
				return date;
845
			};
846
			defaultDate = (defaultDate ? plugin.newDate(defaultDate) : null);
847
			dateSpec = (dateSpec == null ? defaultDate :
848
				(typeof dateSpec === 'string' ? offsetString(dateSpec) : (typeof dateSpec === 'number' ?
849
				(isNaN(dateSpec) || dateSpec === Infinity || dateSpec === -Infinity ? defaultDate :
850
				plugin.add(plugin.today(), dateSpec, 'd')) : plugin.newDate(dateSpec))));
851
			return dateSpec;
852
		},
853
 
854
		/** Find the number of days in a given month.
855
			@param year {Date|number} The date to get days for or the full year.
856
			@param month {number} The month (1 to 12).
857
			@return {number} The number of days in this month.
858
			@example var days = $.datepick.daysInMonth(2014, 12) */
859
		daysInMonth: function(year, month) {
860
			month = (year.getFullYear ? year.getMonth() + 1 : month);
861
			year = (year.getFullYear ? year.getFullYear() : year);
862
			return this.newDate(year, month + 1, 0).getDate();
863
		},
864
 
865
		/** Calculate the day of the year for a date.
866
			@param year {Date|number} The date to get the day-of-year for or the full year.
867
			@param month {number} The month (1-12).
868
			@param day {number} The day.
869
			@return {number} The day of the year.
870
			@example var doy = $.datepick.dayOfYear(2014, 12, 25) */
871
		dayOfYear: function(year, month, day) {
872
			var date = (year.getFullYear ? year : plugin.newDate(year, month, day));
873
			var newYear = plugin.newDate(date.getFullYear(), 1, 1);
874
			return Math.floor((date.getTime() - newYear.getTime()) / plugin._msPerDay) + 1;
875
		},
876
 
877
		/** Set as <code>calculateWeek</code> to determine the week of the year based on the ISO 8601 definition.
878
			@param year {Date|number} The date to get the week for or the full year.
879
			@param month {number} The month (1-12).
880
			@param day {number} The day.
881
			@return {number} The number of the week within the year that contains this date.
882
			@example var week = $.datepick.iso8601Week(2014, 12, 25) */
883
		iso8601Week: function(year, month, day) {
884
			var checkDate = (year.getFullYear ?
885
				new Date(year.getTime()) : plugin.newDate(year, month, day));
886
			// Find Thursday of this week starting on Monday
887
			checkDate.setDate(checkDate.getDate() + 4 - (checkDate.getDay() || 7));
888
			var time = checkDate.getTime();
889
			checkDate.setMonth(0, 1); // Compare with Jan 1
890
			return Math.floor(Math.round((time - checkDate) / plugin._msPerDay) / 7) + 1;
891
		},
892
 
893
		/** Return today's date.
894
			@return {Date} Today.
895
			@example $.datepick.today() */
896
		today: function() {
897
			return this._normaliseDate(new Date());
898
		},
899
 
900
		/** Return a new date.
901
			@param year {Date|number} The date to clone or the year.
902
			@param month {number} The month (1-12).
903
			@param day {number} The day.
904
			@return {Date} The date.
905
			@example $.datepick.newDate(oldDate)
906
 $.datepick.newDate(2014, 12, 25) */
907
		newDate: function(year, month, day) {
908
			return (!year ? null : (year.getFullYear ? this._normaliseDate(new Date(year.getTime())) :
909
				new Date(year, month - 1, day, 12)));
910
		},
911
 
912
		/** Standardise a date into a common format - time portion is 12 noon.
913
			@private
914
			@param date {Date} The date to standardise.
915
			@return {Date} The normalised date. */
916
		_normaliseDate: function(date) {
917
			if (date) {
918
				date.setHours(12, 0, 0, 0);
919
			}
920
			return date;
921
		},
922
 
923
		/** Set the year for a date.
924
			@param date {Date} The original date.
925
			@param year {number} The new year.
926
			@return {Date} The updated date.
927
			@example $.datepick.year(date, 2014) */
928
		year: function(date, year) {
929
			date.setFullYear(year);
930
			return this._normaliseDate(date);
931
		},
932
 
933
		/** Set the month for a date.
934
			@param date  {Date} The original date.
935
			@param month {number} The new month (1-12).
936
			@return {Date} The updated date.
937
			@example $.datepick.month(date, 12) */
938
		month: function(date, month) {
939
			date.setMonth(month - 1);
940
			return this._normaliseDate(date);
941
		},
942
 
943
		/** Set the day for a date.
944
			@param date {Date} The original date.
945
			@param day {number} The new day of the month.
946
			@return {Date} The updated date.
947
			@example $.datepick.day(date, 25) */
948
		day: function(date, day) {
949
			date.setDate(day);
950
			return this._normaliseDate(date);
951
		},
952
 
953
		/** Add a number of periods to a date.
954
			@param date {Date} The original date.
955
			@param amount {number} The number of periods.
956
			@param period {string} The type of period d/w/m/y.
957
			@return {Date} The updated date.
958
			@example $.datepick.add(date, 10, 'd') */
959
		add: function(date, amount, period) {
960
			if (period === 'd' || period === 'w') {
961
				this._normaliseDate(date);
962
				date.setDate(date.getDate() + amount * (period === 'w' ? 7 : 1));
963
			}
964
			else {
965
				var year = date.getFullYear() + (period === 'y' ? amount : 0);
966
				var month = date.getMonth() + (period === 'm' ? amount : 0);
967
				date.setTime(plugin.newDate(year, month + 1,
968
					Math.min(date.getDate(), this.daysInMonth(year, month + 1))).getTime());
969
			}
970
			return date;
971
		},
972
 
973
		/** Apply the months offset value to a date.
974
			@private
975
			@param date {Date} The original date.
976
			@param inst {object} The current instance settings.
977
			@return {Date} The updated date. */
978
		_applyMonthsOffset: function(date, inst) {
979
			var monthsOffset = inst.options.monthsOffset;
980
			if ($.isFunction(monthsOffset)) {
981
				monthsOffset = monthsOffset.apply(inst.elem[0], [date]);
982
			}
983
			return plugin.add(date, -monthsOffset, 'm');
984
		},
985
 
986
		_init: function() {
987
			this.defaultOptions.commands = this.commands;
988
			this.defaultOptions.calculateWeek = this.iso8601Week;
989
			this.regionalOptions[''].renderer = this.defaultRenderer;
990
			this._super();
991
		},
992
 
993
		_instSettings: function(elem, options) {
994
			return {selectedDates: [], drawDate: null, pickingRange: false,
995
				inline: ($.inArray(elem[0].nodeName.toLowerCase(), ['div', 'span']) > -1),
996
				get: function(name) { // Get a setting value, computing if necessary
997
					if ($.inArray(name, ['defaultDate', 'minDate', 'maxDate']) > -1) { // Decode date settings
998
						return plugin.determineDate(this.options[name], null,
999
							this.selectedDates[0], this.options.dateFormat, this.getConfig());
1000
					}
1001
					return this.options[name];
1002
				},
1003
				curMinDate: function() {
1004
					return (this.pickingRange ? this.selectedDates[0] : this.get('minDate'));
1005
				},
1006
				getConfig: function() {
1007
					return {dayNamesShort: this.options.dayNamesShort, dayNames: this.options.dayNames,
1008
						monthNamesShort: this.options.monthNamesShort, monthNames: this.options.monthNames,
1009
						calculateWeek: this.options.calculateWeek,
1010
						shortYearCutoff: this.options.shortYearCutoff};
1011
				}
1012
			};
1013
		},
1014
 
1015
		_postAttach: function(elem, inst) {
1016
			if (inst.inline) {
1017
				inst.drawDate = plugin._checkMinMax(plugin.newDate(inst.selectedDates[0] ||
1018
					inst.get('defaultDate') || plugin.today()), inst);
1019
				inst.prevDate = plugin.newDate(inst.drawDate);
1020
				this._update(elem[0]);
1021
				if ($.fn.mousewheel) {
1022
					elem.mousewheel(this._doMouseWheel);
1023
				}
1024
			}
1025
			else {
1026
				this._attachments(elem, inst);
1027
				elem.on('keydown.' + inst.name, this._keyDown).on('keypress.' + inst.name, this._keyPress).
1028
					on('keyup.' + inst.name, this._keyUp);
1029
				if (elem.attr('disabled')) {
1030
					this.disable(elem[0]);
1031
				}
1032
			}
1033
		},
1034
 
1035
		_optionsChanged: function(elem, inst, options) {
1036
			if (options.calendar && options.calendar !== inst.options.calendar) {
1037
				var discardDate = function(name) {
1038
					return (typeof inst.options[name] === 'object' ? null : inst.options[name]);
1039
				};
1040
				options = $.extend({defaultDate: discardDate('defaultDate'),
1041
					minDate: discardDate('minDate'), maxDate: discardDate('maxDate')}, options);
1042
				inst.selectedDates = [];
1043
				inst.drawDate = null;
1044
			}
1045
			var dates = inst.selectedDates;
1046
			$.extend(inst.options, options);
1047
			this.setDate(elem[0], dates, null, false, true);
1048
			inst.pickingRange = false;
1049
			inst.drawDate = plugin.newDate(this._checkMinMax(
1050
				(inst.options.defaultDate ? inst.get('defaultDate') : inst.drawDate) ||
1051
				inst.get('defaultDate') || plugin.today(), inst));
1052
			if (!inst.inline) {
1053
				this._attachments(elem, inst);
1054
			}
1055
			if (inst.inline || inst.div) {
1056
				this._update(elem[0]);
1057
			}
1058
		},
1059
 
1060
		/** Attach events and trigger, if necessary.
1061
			@private
1062
			@param elem {jQuery} The control to affect.
1063
			@param inst {object} The current instance settings. */
1064
		_attachments: function(elem, inst) {
1065
			elem.off('focus.' + inst.name);
1066
			if (inst.options.showOnFocus) {
1067
				elem.on('focus.' + inst.name, this.show);
1068
			}
1069
			if (inst.trigger) {
1070
				inst.trigger.remove();
1071
			}
1072
			var trigger = inst.options.showTrigger;
1073
			inst.trigger = (!trigger ? $([]) :
1074
				$(trigger).clone().removeAttr('id').addClass(this._triggerClass)
1075
					[inst.options.isRTL ? 'insertBefore' : 'insertAfter'](elem).
1076
					click(function() {
1077
						if (!plugin.isDisabled(elem[0])) {
1078
							plugin[plugin.curInst === inst ? 'hide' : 'show'](elem[0]);
1079
						}
1080
					}));
1081
			this._autoSize(elem, inst);
1082
			var dates = this._extractDates(inst, elem.val());
1083
			if (dates) {
1084
				this.setDate(elem[0], dates, null, true);
1085
			}
1086
			var defaultDate = inst.get('defaultDate');
1087
			if (inst.options.selectDefaultDate && defaultDate && inst.selectedDates.length === 0) {
1088
				this.setDate(elem[0], plugin.newDate(defaultDate || plugin.today()));
1089
			}
1090
		},
1091
 
1092
		/** Apply the maximum length for the date format.
1093
			@private
1094
			@param elem {jQuery} The control to affect.
1095
			@param inst {object} The current instance settings. */
1096
		_autoSize: function(elem, inst) {
1097
			if (inst.options.autoSize && !inst.inline) {
1098
				var date = plugin.newDate(2009, 10, 20); // Ensure double digits
1099
				var dateFormat = inst.options.dateFormat;
1100
				if (dateFormat.match(/[DM]/)) {
1101
					var findMax = function(names) {
1102
						var max = 0;
1103
						var maxI = 0;
1104
						for (var i = 0; i < names.length; i++) {
1105
							if (names[i].length > max) {
1106
								max = names[i].length;
1107
								maxI = i;
1108
							}
1109
						}
1110
						return maxI;
1111
					};
1112
					date.setMonth(findMax(inst.options[dateFormat.match(/MM/) ? // Longest month
1113
						'monthNames' : 'monthNamesShort']));
1114
					date.setDate(findMax(inst.options[dateFormat.match(/DD/) ? // Longest day
1115
						'dayNames' : 'dayNamesShort']) + 20 - date.getDay());
1116
				}
1117
				inst.elem.attr('size', plugin.formatDate(dateFormat, date, inst.getConfig()).length);
1118
			}
1119
		},
1120
 
1121
		_preDestroy: function(elem, inst) {
1122
			if (inst.trigger) {
1123
				inst.trigger.remove();
1124
			}
1125
			elem.empty().off('.' + inst.name);
1126
			if (inst.inline && $.fn.mousewheel) {
1127
				elem.unmousewheel();
1128
			}
1129
			if (!inst.inline && inst.options.autoSize) {
1130
				elem.removeAttr('size');
1131
			}
1132
		},
1133
 
1134
		/** Apply multiple event functions.
1135
			@param fns {function} The functions to apply.
1136
			@example onShow: multipleEvents(fn1, fn2, ...) */
1137
		multipleEvents: function(fns) {
1138
			var funcs = arguments;
1139
			return function(args) {
1140
				for (var i = 0; i < funcs.length; i++) {
1141
					funcs[i].apply(this, arguments);
1142
				}
1143
			};
1144
		},
1145
 
1146
		/** Enable the control.
1147
			@param elem {Element} The control to affect.
1148
			@example $(selector).datepick('enable') */
1149
		enable: function(elem) {
1150
			elem = $(elem);
1151
			if (!elem.hasClass(this._getMarker())) {
1152
				return;
1153
			}
1154
			var inst = this._getInst(elem);
1155
			if (inst.inline) {
1156
				elem.children('.' + this._disableClass).remove().end().
1157
					find('button,select').prop('disabled', false).end().
1158
					find('a').attr('href', 'javascript:void(0)');
1159
			}
1160
			else {
1161
				elem.prop('disabled', false);
1162
				inst.trigger.filter('button.' + this._triggerClass).prop('disabled', false).end().
1163
					filter('img.' + this._triggerClass).css({opacity: '1.0', cursor: ''});
1164
			}
1165
			this._disabled = $.map(this._disabled,
1166
				function(value) { return (value === elem[0] ? null : value); }); // Delete entry
1167
		},
1168
 
1169
		/** Disable the control.
1170
			@param elem {Element} The control to affect.
1171
			@example $(selector).datepick('disable') */
1172
		disable: function(elem) {
1173
			elem = $(elem);
1174
			if (!elem.hasClass(this._getMarker())) {
1175
				return;
1176
			}
1177
			var inst = this._getInst(elem);
1178
			if (inst.inline) {
1179
				var inline = elem.children(':last');
1180
				var offset = inline.offset();
1181
				var relOffset = {left: 0, top: 0};
1182
				inline.parents().each(function() {
1183
					if ($(this).css('position') === 'relative') {
1184
						relOffset = $(this).offset();
1185
						return false;
1186
					}
1187
				});
1188
				var zIndex = elem.css('zIndex');
1189
				zIndex = (zIndex === 'auto' ? 0 : parseInt(zIndex, 10)) + 1;
1190
				elem.prepend('<div class="' + this._disableClass + '" style="' +
1191
					'width: ' + inline.outerWidth() + 'px; height: ' + inline.outerHeight() +
1192
					'px; left: ' + (offset.left - relOffset.left) + 'px; top: ' +
1193
					(offset.top - relOffset.top) + 'px; z-index: ' + zIndex + '"></div>').
1194
					find('button,select').prop('disabled', true).end().
1195
					find('a').removeAttr('href');
1196
			}
1197
			else {
1198
				elem.prop('disabled', true);
1199
				inst.trigger.filter('button.' + this._triggerClass).prop('disabled', true).end().
1200
					filter('img.' + this._triggerClass).css({opacity: '0.5', cursor: 'default'});
1201
			}
1202
			this._disabled = $.map(this._disabled,
1203
				function(value) { return (value === elem[0] ? null : value); }); // Delete entry
1204
			this._disabled.push(elem[0]);
1205
		},
1206
 
1207
		/** Is the first field in a jQuery collection disabled as a datepicker?
1208
			@param elem {Element} The control to examine.
1209
			@return {boolean} <code>true</code> if disabled, <code>false</code> if enabled.
1210
			@example if ($(selector).datepick('isDisabled')) {...} */
1211
		isDisabled: function(elem) {
1212
			return (elem && $.inArray(elem, this._disabled) > -1);
1213
		},
1214
 
1215
		/** Show a popup datepicker.
1216
			@param elem {Event|Element} a focus event or the control to use.
1217
			@example $(selector).datepick('show') */
1218
		show: function(elem) {
1219
			elem = $(elem.target || elem);
1220
			var inst = plugin._getInst(elem);
1221
			if (plugin.curInst === inst) {
1222
				return;
1223
			}
1224
			if (plugin.curInst) {
1225
				plugin.hide(plugin.curInst, true);
1226
			}
1227
			if (!$.isEmptyObject(inst)) {
1228
				// Retrieve existing date(s)
1229
				inst.lastVal = null;
1230
				inst.selectedDates = plugin._extractDates(inst, elem.val());
1231
				inst.pickingRange = false;
1232
				inst.drawDate = plugin._checkMinMax(plugin.newDate(inst.selectedDates[0] ||
1233
					inst.get('defaultDate') || plugin.today()), inst);
1234
				inst.prevDate = plugin.newDate(inst.drawDate);
1235
				plugin.curInst = inst;
1236
				// Generate content
1237
				plugin._update(elem[0], true);
1238
				// Adjust position before showing
1239
				var offset = plugin._checkOffset(inst);
1240
				inst.div.css({left: offset.left, top: offset.top});
1241
				// And display
1242
				var showAnim = inst.options.showAnim;
1243
				var showSpeed = inst.options.showSpeed;
1244
				showSpeed = (showSpeed === 'normal' && $.ui &&
1245
					parseInt($.ui.version.substring(2)) >= 8 ? '_default' : showSpeed);
1246
				if ($.effects && ($.effects[showAnim] || ($.effects.effect && $.effects.effect[showAnim]))) {
1247
					var data = inst.div.data(); // Update old effects data
1248
					for (var key in data) {
1249
						if (key.match(/^ec\.storage\./)) {
1250
							data[key] = inst._mainDiv.css(key.replace(/ec\.storage\./, ''));
1251
						}
1252
					}
1253
					inst.div.data(data).show(showAnim, inst.options.showOptions, showSpeed);
1254
				}
1255
				else {
1256
					inst.div[showAnim || 'show'](showAnim ? showSpeed : 0);
1257
				}
1258
			}
1259
		},
1260
 
1261
		/** Extract possible dates from a string.
1262
			@private
1263
			@param inst {object} The current instance settings.
1264
			@param text {string} The text to extract from.
1265
			@return {Date[]} The extracted dates. */
1266
		_extractDates: function(inst, datesText) {
1267
			if (datesText === inst.lastVal) {
1268
				return;
1269
			}
1270
			inst.lastVal = datesText;
1271
			datesText = datesText.split(inst.options.multiSelect ? inst.options.multiSeparator :
1272
				(inst.options.rangeSelect ? inst.options.rangeSeparator : '\x00'));
1273
			var dates = [];
1274
			for (var i = 0; i < datesText.length; i++) {
1275
				try {
1276
					var date = plugin.parseDate(inst.options.dateFormat, datesText[i], inst.getConfig());
1277
					if (date) {
1278
						var found = false;
1279
						for (var j = 0; j < dates.length; j++) {
1280
							if (dates[j].getTime() === date.getTime()) {
1281
								found = true;
1282
								break;
1283
							}
1284
						}
1285
						if (!found) {
1286
							dates.push(date);
1287
						}
1288
					}
1289
				}
1290
				catch (e) {
1291
					// Ignore
1292
				}
1293
			}
1294
			dates.splice(inst.options.multiSelect || (inst.options.rangeSelect ? 2 : 1), dates.length);
1295
			if (inst.options.rangeSelect && dates.length === 1) {
1296
				dates[1] = dates[0];
1297
			}
1298
			return dates;
1299
		},
1300
 
1301
		/** Update the datepicker display.
1302
			@private
1303
			@param elem {Event|Element} a focus event or the control to use.
1304
			@param hidden {boolean} <code>true</code> to initially hide the datepicker. */
1305
		_update: function(elem, hidden) {
1306
			elem = $(elem.target || elem);
1307
			var inst = plugin._getInst(elem);
1308
			if (!$.isEmptyObject(inst)) {
1309
				if (inst.inline || plugin.curInst === inst) {
1310
					if ($.isFunction(inst.options.onChangeMonthYear) && (!inst.prevDate ||
1311
							inst.prevDate.getFullYear() !== inst.drawDate.getFullYear() ||
1312
							inst.prevDate.getMonth() !== inst.drawDate.getMonth())) {
1313
						inst.options.onChangeMonthYear.apply(elem[0],
1314
							[inst.drawDate.getFullYear(), inst.drawDate.getMonth() + 1]);
1315
					}
1316
				}
1317
				if (inst.inline) {
1318
					elem.html(this._generateContent(elem[0], inst));
1319
				}
1320
				else if (plugin.curInst === inst) {
1321
					if (!inst.div) {
1322
						inst.div = $('<div></div>').addClass(this._popupClass).
1323
							css({display: (hidden ? 'none' : 'static'), position: 'absolute',
1324
								left: elem.offset().left, top: elem.offset().top + elem.outerHeight()}).
1325
							appendTo($(inst.options.popupContainer || 'body'));
1326
						if ($.fn.mousewheel) {
1327
							inst.div.mousewheel(this._doMouseWheel);
1328
						}
1329
					}
1330
					inst.div.html(this._generateContent(elem[0], inst));
1331
					elem.focus();
1332
				}
1333
			}
1334
		},
1335
 
1336
		/** Update the input field and any alternate field with the current dates.
1337
			@private
1338
			@param elem {Element} The control to use.
1339
			@param keyUp {boolean} <code>true</code> if coming from <code>keyUp</code> processing (internal). */
1340
		_updateInput: function(elem, keyUp) {
1341
			var inst = this._getInst(elem);
1342
			if (!$.isEmptyObject(inst)) {
1343
				var value = '';
1344
				var altValue = '';
1345
				var sep = (inst.options.multiSelect ? inst.options.multiSeparator :
1346
					inst.options.rangeSeparator);
1347
				var altFormat = inst.options.altFormat || inst.options.dateFormat;
1348
				for (var i = 0; i < inst.selectedDates.length; i++) {
1349
					value += (keyUp ? '' : (i > 0 ? sep : '') + plugin.formatDate(
1350
						inst.options.dateFormat, inst.selectedDates[i], inst.getConfig()));
1351
					altValue += (i > 0 ? sep : '') + plugin.formatDate(
1352
						altFormat, inst.selectedDates[i], inst.getConfig());
1353
				}
1354
				if (!inst.inline && !keyUp) {
1355
					$(elem).val(value);
1356
				}
1357
				$(inst.options.altField).val(altValue);
1358
				if ($.isFunction(inst.options.onSelect) && !keyUp && !inst.inSelect) {
1359
					inst.inSelect = true; // Prevent endless loops
1360
					inst.options.onSelect.apply(elem, [inst.selectedDates]);
1361
					inst.inSelect = false;
1362
				}
1363
			}
1364
		},
1365
 
1366
		/** Retrieve the size of left and top borders for an element.
1367
			@private
1368
			@param elem {jQuery} The element of interest.
1369
			@return {number[]} The left and top borders. */
1370
		_getBorders: function(elem) {
1371
			var convert = function(value) {
1372
				return {thin: 1, medium: 3, thick: 5}[value] || value;
1373
			};
1374
			return [parseFloat(convert(elem.css('border-left-width'))),
1375
				parseFloat(convert(elem.css('border-top-width')))];
1376
		},
1377
 
1378
		/** Check positioning to remain on the screen.
1379
			@private
1380
			@param inst {object} The current instance settings.
1381
			@return {object} The updated offset for the datepicker. */
1382
		_checkOffset: function(inst) {
1383
			var base = (inst.elem.is(':hidden') && inst.trigger ? inst.trigger : inst.elem);
1384
			var offset = base.offset();
1385
			var browserWidth = $(window).width();
1386
			var browserHeight = $(window).height();
1387
			if (browserWidth === 0) {
1388
				return offset;
1389
			}
1390
			var isFixed = false;
1391
			$(inst.elem).parents().each(function() {
1392
				isFixed |= $(this).css('position') === 'fixed';
1393
				return !isFixed;
1394
			});
1395
			var scrollX = document.documentElement.scrollLeft || document.body.scrollLeft;
1396
			var scrollY = document.documentElement.scrollTop || document.body.scrollTop;
1397
			var above = offset.top - (isFixed ? scrollY : 0) - inst.div.outerHeight();
1398
			var below = offset.top - (isFixed ? scrollY : 0) + base.outerHeight();
1399
			var alignL = offset.left - (isFixed ? scrollX : 0);
1400
			var alignR = offset.left - (isFixed ? scrollX : 0) + base.outerWidth() - inst.div.outerWidth();
1401
			var tooWide = (offset.left - scrollX + inst.div.outerWidth()) > browserWidth;
1402
			var tooHigh = (offset.top - scrollY + inst.elem.outerHeight() +
1403
				inst.div.outerHeight()) > browserHeight;
1404
			inst.div.css('position', isFixed ? 'fixed' : 'absolute');
1405
			var alignment = inst.options.alignment;
1406
			if (alignment === 'topLeft') {
1407
				offset = {left: alignL, top: above};
1408
			}
1409
			else if (alignment === 'topRight') {
1410
				offset = {left: alignR, top: above};
1411
			}
1412
			else if (alignment === 'bottomLeft') {
1413
				offset = {left: alignL, top: below};
1414
			}
1415
			else if (alignment === 'bottomRight') {
1416
				offset = {left: alignR, top: below};
1417
			}
1418
			else if (alignment === 'top') {
1419
				offset = {left: (inst.options.isRTL || tooWide ? alignR : alignL), top: above};
1420
			}
1421
			else { // bottom
1422
				offset = {left: (inst.options.isRTL || tooWide ? alignR : alignL),
1423
					top: (tooHigh ? above : below)};
1424
			}
1425
			offset.left = Math.max((isFixed ? 0 : scrollX), offset.left);
1426
			offset.top = Math.max((isFixed ? 0 : scrollY), offset.top);
1427
			return offset;
1428
		},
1429
 
1430
		/** Close date picker if clicked elsewhere.
1431
			@private
1432
			@param event {MouseEvent} The mouse click to check. */
1433
		_checkExternalClick: function(event) {
1434
			if (!plugin.curInst) {
1435
				return;
1436
			}
1437
			var elem = $(event.target);
1438
			if (elem.closest('.' + plugin._popupClass + ',.' + plugin._triggerClass).length === 0 &&
1439
					!elem.hasClass(plugin._getMarker())) {
1440
				plugin.hide(plugin.curInst);
1441
			}
1442
		},
1443
 
1444
		/** Hide a popup datepicker.
1445
			@param elem {Element|object} The control to use or the current instance settings.
1446
			@param immediate {boolean} <code>true</code> to close immediately without animation (internal).
1447
			@example $(selector).datepick('hide') */
1448
		hide: function(elem, immediate) {
1449
			if (!elem) {
1450
				return;
1451
			}
1452
			var inst = this._getInst(elem);
1453
			if ($.isEmptyObject(inst)) {
1454
				inst = elem;
1455
			}
1456
			if (inst && inst === plugin.curInst) {
1457
				var showAnim = (immediate ? '' : inst.options.showAnim);
1458
				var showSpeed = inst.options.showSpeed;
1459
				showSpeed = (showSpeed === 'normal' && $.ui &&
1460
					parseInt($.ui.version.substring(2)) >= 8 ? '_default' : showSpeed);
1461
				var postProcess = function() {
1462
					if (!inst.div) {
1463
						return;
1464
					}
1465
					inst.div.remove();
1466
					inst.div = null;
1467
					plugin.curInst = null;
1468
					if ($.isFunction(inst.options.onClose)) {
1469
						inst.options.onClose.apply(elem, [inst.selectedDates]);
1470
					}
1471
				};
1472
				inst.div.stop();
1473
				if ($.effects && ($.effects[showAnim] || ($.effects.effect && $.effects.effect[showAnim]))) {
1474
					inst.div.hide(showAnim, inst.options.showOptions, showSpeed, postProcess);
1475
				}
1476
				else {
1477
					var hideAnim = (showAnim === 'slideDown' ? 'slideUp' :
1478
						(showAnim === 'fadeIn' ? 'fadeOut' : 'hide'));
1479
					inst.div[hideAnim]((showAnim ? showSpeed : ''), postProcess);
1480
				}
1481
				if (!showAnim) {
1482
					postProcess();
1483
				}
1484
			}
1485
		},
1486
 
1487
		/** Handle keystrokes in the datepicker.
1488
			@private
1489
			@param event {KeyEvent} The keystroke.
1490
			@return {boolean} <code>true</code> if not handled, <code>false</code> if handled. */
1491
		_keyDown: function(event) {
1492
			var elem = event.target;
1493
			var inst = plugin._getInst(elem);
1494
			var handled = false;
1495
			if (inst.div) {
1496
				if (event.keyCode === 9) { // Tab - close
1497
					plugin.hide(elem);
1498
				}
1499
				else if (event.keyCode === 13) { // Enter - select
1500
					plugin.selectDate(elem,
1501
						$('a.' + inst.options.renderer.highlightedClass, inst.div)[0]);
1502
					handled = true;
1503
				}
1504
				else { // Command keystrokes
1505
					var commands = inst.options.commands;
1506
					for (var name in commands) {
1507
						var command = commands[name];
1508
						if (command.keystroke.keyCode === event.keyCode &&
1509
								!!command.keystroke.ctrlKey === !!(event.ctrlKey || event.metaKey) &&
1510
								!!command.keystroke.altKey === event.altKey &&
1511
								!!command.keystroke.shiftKey === event.shiftKey) {
1512
							plugin.performAction(elem, name);
1513
							handled = true;
1514
							break;
1515
						}
1516
					}
1517
				}
1518
			}
1519
			else { // Show on 'current' keystroke
1520
				var command = inst.options.commands.current;
1521
				if (command.keystroke.keyCode === event.keyCode &&
1522
						!!command.keystroke.ctrlKey === !!(event.ctrlKey || event.metaKey) &&
1523
						!!command.keystroke.altKey === event.altKey &&
1524
						!!command.keystroke.shiftKey === event.shiftKey) {
1525
					plugin.show(elem);
1526
					handled = true;
1527
				}
1528
			}
1529
			inst.ctrlKey = ((event.keyCode < 48 && event.keyCode !== 32) || event.ctrlKey || event.metaKey);
1530
			if (handled) {
1531
				event.preventDefault();
1532
				event.stopPropagation();
1533
			}
1534
			return !handled;
1535
		},
1536
 
1537
		/** Filter keystrokes in the datepicker.
1538
			@private
1539
			@param event {KeyEvent} The keystroke.
1540
			@return {boolean} <code>true</code> if allowed, <code>false</code> if not allowed. */
1541
		_keyPress: function(event) {
1542
			var inst = plugin._getInst(event.target);
1543
			if (!$.isEmptyObject(inst) && inst.options.constrainInput) {
1544
				var ch = String.fromCharCode(event.keyCode || event.charCode);
1545
				var allowedChars = plugin._allowedChars(inst);
1546
				return (event.metaKey || inst.ctrlKey || ch < ' ' ||
1547
					!allowedChars || allowedChars.indexOf(ch) > -1);
1548
			}
1549
			return true;
1550
		},
1551
 
1552
		/** Determine the set of characters allowed by the date format.
1553
			@private
1554
			@param inst {object} The current instance settings.
1555
			@return {string} The set of allowed characters, or <code>null</code> if anything allowed. */
1556
		_allowedChars: function(inst) {
1557
			var allowedChars = (inst.options.multiSelect ? inst.options.multiSeparator :
1558
				(inst.options.rangeSelect ? inst.options.rangeSeparator : ''));
1559
			var literal = false;
1560
			var hasNum = false;
1561
			var dateFormat = inst.options.dateFormat;
1562
			for (var i = 0; i < dateFormat.length; i++) {
1563
				var ch = dateFormat.charAt(i);
1564
				if (literal) {
1565
					if (ch === "'" && dateFormat.charAt(i + 1) !== "'") {
1566
						literal = false;
1567
					}
1568
					else {
1569
						allowedChars += ch;
1570
					}
1571
				}
1572
				else {
1573
					switch (ch) {
1574
						case 'd': case 'm': case 'o': case 'w':
1575
							allowedChars += (hasNum ? '' : '0123456789'); hasNum = true; break;
1576
						case 'y': case '@': case '!':
1577
							allowedChars += (hasNum ? '' : '0123456789') + '-'; hasNum = true; break;
1578
						case 'J':
1579
							allowedChars += (hasNum ? '' : '0123456789') + '-.'; hasNum = true; break;
1580
						case 'D': case 'M': case 'Y':
1581
							return null; // Accept anything
1582
						case "'":
1583
							if (dateFormat.charAt(i + 1) === "'") {
1584
								allowedChars += "'";
1585
							}
1586
							else {
1587
								literal = true;
1588
							}
1589
							break;
1590
						default:
1591
							allowedChars += ch;
1592
					}
1593
				}
1594
			}
1595
			return allowedChars;
1596
		},
1597
 
1598
		/** Synchronise datepicker with the field.
1599
			@private
1600
			@param event {KeyEvent} The keystroke.
1601
			@return {boolean} <code>true</code> if allowed, <code>false</code> if not allowed. */
1602
		_keyUp: function(event) {
1603
			var elem = event.target;
1604
			var inst = plugin._getInst(elem);
1605
			if (!$.isEmptyObject(inst) && !inst.ctrlKey && inst.lastVal !== inst.elem.val()) {
1606
				try {
1607
					var dates = plugin._extractDates(inst, inst.elem.val());
1608
					if (dates.length > 0) {
1609
						plugin.setDate(elem, dates, null, true);
1610
					}
1611
				}
1612
				catch (event) {
1613
					// Ignore
1614
				}
1615
			}
1616
			return true;
1617
		},
1618
 
1619
		/** Increment/decrement month/year on mouse wheel activity.
1620
			@private
1621
			@param event {event} The mouse wheel event.
1622
			@param delta {number} The amount of change. */
1623
		_doMouseWheel: function(event, delta) {
1624
			var elem = (plugin.curInst && plugin.curInst.elem[0]) ||
1625
				$(event.target).closest('.' + plugin._getMarker())[0];
1626
			if (plugin.isDisabled(elem)) {
1627
				return;
1628
			}
1629
			var inst = plugin._getInst(elem);
1630
			if (inst.options.useMouseWheel) {
1631
				delta = (delta < 0 ? -1 : +1);
1632
				plugin.changeMonth(elem, -inst.options[event.ctrlKey ? 'monthsToJump' : 'monthsToStep'] * delta);
1633
			}
1634
			event.preventDefault();
1635
		},
1636
 
1637
		/** Clear an input and close a popup datepicker.
1638
			@param elem {Element} The control to use.
1639
			@example $(selector).datepick('clear') */
1640
		clear: function(elem) {
1641
			var inst = this._getInst(elem);
1642
			if (!$.isEmptyObject(inst)) {
1643
				inst.selectedDates = [];
1644
				this.hide(elem);
1645
				var defaultDate = inst.get('defaultDate');
1646
				if (inst.options.selectDefaultDate && defaultDate) {
1647
					this.setDate(elem, plugin.newDate(defaultDate || plugin.today()));
1648
				}
1649
				else {
1650
					this._updateInput(elem);
1651
				}
1652
			}
1653
		},
1654
 
1655
		/** Retrieve the selected date(s) for a datepicker.
1656
			@param elem {Element} The control to examine.
1657
			@return {Date[]} The selected date(s).
1658
			@example var dates = $(selector).datepick('getDate') */
1659
		getDate: function(elem) {
1660
			var inst = this._getInst(elem);
1661
			return (!$.isEmptyObject(inst) ? inst.selectedDates : []);
1662
		},
1663
 
1664
		/** Set the selected date(s) for a datepicker.
1665
			@param elem {Element} the control to examine.
1666
			@param dates {Date|number|string|array} the selected date(s).
1667
			@param [endDate] {Date|number|string} the ending date for a range.
1668
			@param keyUp {boolean} <code>true</code> if coming from <code>keyUp</code> processing (internal).
1669
			@param setOpt {boolean} <code>true</code> if coming from option processing (internal).
1670
			@example $(selector).datepick('setDate', new Date(2014, 12-1, 25))
1671
 $(selector).datepick('setDate', '12/25/2014', '01/01/2015')
1672
 $(selector).datepick('setDate', [date1, date2, date3]) */
1673
		setDate: function(elem, dates, endDate, keyUp, setOpt) {
1674
			var inst = this._getInst(elem);
1675
			if (!$.isEmptyObject(inst)) {
1676
				if (!$.isArray(dates)) {
1677
					dates = [dates];
1678
					if (endDate) {
1679
						dates.push(endDate);
1680
					}
1681
				}
1682
				var minDate = inst.get('minDate');
1683
				var maxDate = inst.get('maxDate');
1684
				var curDate = inst.selectedDates[0];
1685
				inst.selectedDates = [];
1686
				for (var i = 0; i < dates.length; i++) {
1687
					var date = plugin.determineDate(
1688
						dates[i], null, curDate, inst.options.dateFormat, inst.getConfig());
1689
					if (date) {
1690
						if ((!minDate || date.getTime() >= minDate.getTime()) &&
1691
								(!maxDate || date.getTime() <= maxDate.getTime())) {
1692
							var found = false;
1693
							for (var j = 0; j < inst.selectedDates.length; j++) {
1694
								if (inst.selectedDates[j].getTime() === date.getTime()) {
1695
									found = true;
1696
									break;
1697
								}
1698
							}
1699
							if (!found) {
1700
								inst.selectedDates.push(date);
1701
							}
1702
						}
1703
					}
1704
				}
1705
				inst.selectedDates.splice(inst.options.multiSelect ||
1706
					(inst.options.rangeSelect ? 2 : 1), inst.selectedDates.length);
1707
				if (inst.options.rangeSelect) {
1708
					switch (inst.selectedDates.length) {
1709
						case 1: inst.selectedDates[1] = inst.selectedDates[0]; break;
1710
						case 2: inst.selectedDates[1] =
1711
							(inst.selectedDates[0].getTime() > inst.selectedDates[1].getTime() ?
1712
							inst.selectedDates[0] : inst.selectedDates[1]); break;
1713
					}
1714
					inst.pickingRange = false;
1715
				}
1716
				inst.prevDate = (inst.drawDate ? plugin.newDate(inst.drawDate) : null);
1717
				inst.drawDate = this._checkMinMax(plugin.newDate(inst.selectedDates[0] ||
1718
					inst.get('defaultDate') || plugin.today()), inst);
1719
				if (!setOpt) {
1720
					this._update(elem);
1721
					this._updateInput(elem, keyUp);
1722
				}
1723
			}
1724
		},
1725
 
1726
		/** Determine whether a date is selectable for this datepicker.
1727
			@private
1728
			@param elem {Element} The control to check.
1729
			@param date {Date|string|number} The date to check.
1730
			@return {boolean} <code>true</code> if selectable, <code>false</code> if not.
1731
			@example var selectable = $(selector).datepick('isSelectable', date) */
1732
		isSelectable: function(elem, date) {
1733
			var inst = this._getInst(elem);
1734
			if ($.isEmptyObject(inst)) {
1735
				return false;
1736
			}
1737
			date = plugin.determineDate(date, inst.selectedDates[0] || this.today(), null,
1738
				inst.options.dateFormat, inst.getConfig());
1739
			return this._isSelectable(elem, date, inst.options.onDate,
1740
				inst.get('minDate'), inst.get('maxDate'));
1741
		},
1742
 
1743
		/** Internally determine whether a date is selectable for this datepicker.
1744
			@private
1745
			@param elem {Element} the control to check.
1746
			@param date {Date} The date to check.
1747
			@param onDate {function|boolean} Any onDate callback or callback.selectable.
1748
			@param minDate {Date} The minimum allowed date.
1749
			@param maxDate {Date} The maximum allowed date.
1750
			@return {boolean} <code>true</code> if selectable, <code>false</code> if not. */
1751
		_isSelectable: function(elem, date, onDate, minDate, maxDate) {
1752
			var dateInfo = (typeof onDate === 'boolean' ? {selectable: onDate} :
1753
				(!$.isFunction(onDate) ? {} : onDate.apply(elem, [date, true])));
1754
			return (dateInfo.selectable !== false) &&
1755
				(!minDate || date.getTime() >= minDate.getTime()) &&
1756
				(!maxDate || date.getTime() <= maxDate.getTime());
1757
		},
1758
 
1759
		/** Perform a named action for a datepicker.
1760
			@param elem {element} The control to affect.
1761
			@param action {string} The name of the action. */
1762
		performAction: function(elem, action) {
1763
			var inst = this._getInst(elem);
1764
			if (!$.isEmptyObject(inst) && !this.isDisabled(elem)) {
1765
				var commands = inst.options.commands;
1766
				if (commands[action] && commands[action].enabled.apply(elem, [inst])) {
1767
					commands[action].action.apply(elem, [inst]);
1768
				}
1769
			}
1770
		},
1771
 
1772
		/** Set the currently shown month, defaulting to today's.
1773
			@param elem {Element} The control to affect.
1774
			@param [year] {number} The year to show.
1775
			@param [month] {number} The month to show (1-12).
1776
			@param [day] {number} The day to show.
1777
			@example $(selector).datepick('showMonth', 2014, 12, 25) */
1778
		showMonth: function(elem, year, month, day) {
1779
			var inst = this._getInst(elem);
1780
			if (!$.isEmptyObject(inst) && (day != null ||
1781
					(inst.drawDate.getFullYear() !== year || inst.drawDate.getMonth() + 1 !== month))) {
1782
				inst.prevDate = plugin.newDate(inst.drawDate);
1783
				var show = this._checkMinMax((year != null ?
1784
					plugin.newDate(year, month, 1) : plugin.today()), inst);
1785
				inst.drawDate = plugin.newDate(show.getFullYear(), show.getMonth() + 1, 
1786
					(day != null ? day : Math.min(inst.drawDate.getDate(),
1787
					plugin.daysInMonth(show.getFullYear(), show.getMonth() + 1))));
1788
				this._update(elem);
1789
			}
1790
		},
1791
 
1792
		/** Adjust the currently shown month.
1793
			@param elem {Element} The control to affect.
1794
			@param offset {number} The number of months to change by.
1795
			@example $(selector).datepick('changeMonth', 2)*/
1796
		changeMonth: function(elem, offset) {
1797
			var inst = this._getInst(elem);
1798
			if (!$.isEmptyObject(inst)) {
1799
				var date = plugin.add(plugin.newDate(inst.drawDate), offset, 'm');
1800
				this.showMonth(elem, date.getFullYear(), date.getMonth() + 1);
1801
			}
1802
		},
1803
 
1804
		/** Adjust the currently shown day.
1805
			@param elem {Element} The control to affect.
1806
			@param offset {number} The number of days to change by.
1807
			@example $(selector).datepick('changeDay', 7)*/
1808
		changeDay: function(elem, offset) {
1809
			var inst = this._getInst(elem);
1810
			if (!$.isEmptyObject(inst)) {
1811
				var date = plugin.add(plugin.newDate(inst.drawDate), offset, 'd');
1812
				this.showMonth(elem, date.getFullYear(), date.getMonth() + 1, date.getDate());
1813
			}
1814
		},
1815
 
1816
		/** Restrict a date to the minimum/maximum specified.
1817
			@private
1818
			@param date {Date} The date to check.
1819
			@param inst {object} The current instance settings. */
1820
		_checkMinMax: function(date, inst) {
1821
			var minDate = inst.get('minDate');
1822
			var maxDate = inst.get('maxDate');
1823
			date = (minDate && date.getTime() < minDate.getTime() ? plugin.newDate(minDate) : date);
1824
			date = (maxDate && date.getTime() > maxDate.getTime() ? plugin.newDate(maxDate) : date);
1825
			return date;
1826
		},
1827
 
1828
		/** Retrieve the date associated with an entry in the datepicker.
1829
			@param elem {Element} The control to examine.
1830
			@param target {Element} The selected datepicker element.
1831
			@return {Date} The corresponding date, or <code>null</code>.			
1832
			@example var date = $(selector).datepick('retrieveDate', $('div.datepick-popup a:contains(10)')[0]) */
1833
		retrieveDate: function(elem, target) {
1834
			var inst = this._getInst(elem);
1835
			return ($.isEmptyObject(inst) ? null : this._normaliseDate(
1836
				new Date(parseInt(target.className.replace(/^.*dp(-?\d+).*$/, '$1'), 10))));
1837
		},
1838
 
1839
		/** Select a date for this datepicker.
1840
			@param elem {Element} The control to examine.
1841
			@param target {Element} The selected datepicker element.
1842
			@example $(selector).datepick('selectDate', $('div.datepick-popup a:contains(10)')[0]) */
1843
		selectDate: function(elem, target) {
1844
			var inst = this._getInst(elem);
1845
			if (!$.isEmptyObject(inst) && !this.isDisabled(elem)) {
1846
				var date = this.retrieveDate(elem, target);
1847
				if (inst.options.multiSelect) {
1848
					var found = false;
1849
					for (var i = 0; i < inst.selectedDates.length; i++) {
1850
						if (date.getTime() === inst.selectedDates[i].getTime()) {
1851
							inst.selectedDates.splice(i, 1);
1852
							found = true;
1853
							break;
1854
						}
1855
					}
1856
					if (!found && inst.selectedDates.length < inst.options.multiSelect) {
1857
						inst.selectedDates.push(date);
1858
					}
1859
				}
1860
				else if (inst.options.rangeSelect) {
1861
					if (inst.pickingRange) {
1862
						inst.selectedDates[1] = date;
1863
					}
1864
					else {
1865
						inst.selectedDates = [date, date];
1866
					}
1867
					inst.pickingRange = !inst.pickingRange;
1868
				}
1869
				else {
1870
					inst.selectedDates = [date];
1871
				}
1872
				inst.prevDate = plugin.newDate(date);
1873
				this._updateInput(elem);
1874
				if (inst.inline || inst.pickingRange || inst.selectedDates.length <
1875
						(inst.options.multiSelect || (inst.options.rangeSelect ? 2 : 1))) {
1876
					this._update(elem);
1877
				}
1878
				else {
1879
					this.hide(elem);
1880
				}
1881
			}
1882
		},
1883
 
1884
		/** Generate the datepicker content for this control.
1885
			@private
1886
			@param elem {Element} The control to affect.
1887
			@param inst {object} The current instance settings.
1888
			@return {jQuery} The datepicker content */
1889
		_generateContent: function(elem, inst) {
1890
			var monthsToShow = inst.options.monthsToShow;
1891
			monthsToShow = ($.isArray(monthsToShow) ? monthsToShow : [1, monthsToShow]);
1892
			inst.drawDate = this._checkMinMax(
1893
				inst.drawDate || inst.get('defaultDate') || plugin.today(), inst);
1894
			var drawDate = plugin._applyMonthsOffset(plugin.newDate(inst.drawDate), inst);
1895
			// Generate months
1896
			var monthRows = '';
1897
			for (var row = 0; row < monthsToShow[0]; row++) {
1898
				var months = '';
1899
				for (var col = 0; col < monthsToShow[1]; col++) {
1900
					months += this._generateMonth(elem, inst, drawDate.getFullYear(),
1901
						drawDate.getMonth() + 1, inst.options.renderer, (row === 0 && col === 0));
1902
					plugin.add(drawDate, 1, 'm');
1903
				}
1904
				monthRows += this._prepare(inst.options.renderer.monthRow, inst).replace(/\{months\}/, months);
1905
			}
1906
			var picker = this._prepare(inst.options.renderer.picker, inst).replace(/\{months\}/, monthRows).
1907
				replace(/\{weekHeader\}/g, this._generateDayHeaders(inst, inst.options.renderer));
1908
			// Add commands
1909
			var addCommand = function(type, open, close, name, classes) {
1910
				if (picker.indexOf('{' + type + ':' + name + '}') === -1) {
1911
					return;
1912
				}
1913
				var command = inst.options.commands[name];
1914
				var date = (inst.options.commandsAsDateFormat ? command.date.apply(elem, [inst]) : null);
1915
				picker = picker.replace(new RegExp('\\{' + type + ':' + name + '\\}', 'g'),
1916
					'<' + open + (command.status ? ' title="' + inst.options[command.status] + '"' : '') +
1917
					' class="' + inst.options.renderer.commandClass + ' ' +
1918
					inst.options.renderer.commandClass + '-' + name + ' ' + classes +
1919
					(command.enabled(inst) ? '' : ' ' + inst.options.renderer.disabledClass) + '">' +
1920
					(date ? plugin.formatDate(inst.options[command.text], date, inst.getConfig()) :
1921
					inst.options[command.text]) + '</' + close + '>');
1922
			};
1923
			for (var name in inst.options.commands) {
1924
				addCommand('button', 'button type="button"', 'button', name,
1925
					inst.options.renderer.commandButtonClass);
1926
				addCommand('link', 'a href="javascript:void(0)"', 'a', name,
1927
					inst.options.renderer.commandLinkClass);
1928
			}
1929
			picker = $(picker);
1930
			if (monthsToShow[1] > 1) {
1931
				var count = 0;
1932
				$(inst.options.renderer.monthSelector, picker).each(function() {
1933
					var nth = ++count % monthsToShow[1];
1934
					$(this).addClass(nth === 1 ? 'first' : (nth === 0 ? 'last' : ''));
1935
				});
1936
			}
1937
			// Add datepicker behaviour
1938
			var self = this;
1939
			picker.find(inst.options.renderer.daySelector + ' a').hover(
1940
					function() { $(this).addClass(inst.options.renderer.highlightedClass); },
1941
					function() {
1942
						(inst.inline ? $(this).closest('.' + self._getMarker()) : inst.div).
1943
							find(inst.options.renderer.daySelector + ' a').
1944
							removeClass(inst.options.renderer.highlightedClass);
1945
					}).
1946
				click(function() {
1947
					self.selectDate(elem, this);
1948
				}).end().
1949
				find('select.' + this._monthYearClass + ':not(.' + this._anyYearClass + ')').
1950
				change(function() {
1951
					var monthYear = $(this).val().split('/');
1952
					self.showMonth(elem, parseInt(monthYear[1], 10), parseInt(monthYear[0], 10));
1953
				}).end().
1954
				find('select.' + this._anyYearClass).click(function() {
1955
					$(this).css('visibility', 'hidden').
1956
						next('input').css({left: this.offsetLeft, top: this.offsetTop,
1957
						width: this.offsetWidth, height: this.offsetHeight}).show().focus();
1958
				}).end().
1959
				find('input.' + self._monthYearClass).change(function() {
1960
					try {
1961
						var year = parseInt($(this).val(), 10);
1962
						year = (isNaN(year) ? inst.drawDate.getFullYear() : year);
1963
						self.showMonth(elem, year, inst.drawDate.getMonth() + 1, inst.drawDate.getDate());
1964
					}
1965
					catch (e) {
1966
						alert(e);
1967
					}
1968
				}).keydown(function(event) {
1969
					if (event.keyCode === 13) { // Enter
1970
						$(event.elem).change();
1971
					}
1972
					else if (event.keyCode === 27) { // Escape
1973
						$(event.elem).hide().prev('select').css('visibility', 'visible');
1974
						inst.elem.focus();
1975
					}
1976
				});
1977
			// Add command behaviour
1978
			picker.find('.' + inst.options.renderer.commandClass).click(function() {
1979
					if (!$(this).hasClass(inst.options.renderer.disabledClass)) {
1980
						var action = this.className.replace(
1981
							new RegExp('^.*' + inst.options.renderer.commandClass + '-([^ ]+).*$'), '$1');
1982
						plugin.performAction(elem, action);
1983
					}
1984
				});
1985
			// Add classes
1986
			if (inst.options.isRTL) {
1987
				picker.addClass(inst.options.renderer.rtlClass);
1988
			}
1989
			if (monthsToShow[0] * monthsToShow[1] > 1) {
1990
				picker.addClass(inst.options.renderer.multiClass);
1991
			}
1992
			if (inst.options.pickerClass) {
1993
				picker.addClass(inst.options.pickerClass);
1994
			}
1995
			// Resize
1996
			$('body').append(picker);
1997
			var width = 0;
1998
			picker.find(inst.options.renderer.monthSelector).each(function() {
1999
				width += $(this).outerWidth();
2000
			});
2001
			picker.width(width / monthsToShow[0]);
2002
			// Pre-show customisation
2003
			if ($.isFunction(inst.options.onShow)) {
2004
				inst.options.onShow.apply(elem, [picker, inst]);
2005
			}
2006
			return picker;
2007
		},
2008
 
2009
		/** Generate the content for a single month.
2010
			@private
2011
			@param elem {Element} The control to affect.
2012
			@param inst {object} The current instance settings.
2013
			@param year {number} The year to generate.
2014
			@param month {number} The month to generate.
2015
			@param renderer {object} The rendering templates.
2016
			@param first {boolean} <code>true</code> if first of multiple months.
2017
			@return {string} The month content. */
2018
		_generateMonth: function(elem, inst, year, month, renderer, first) {
2019
			var daysInMonth = plugin.daysInMonth(year, month);
2020
			var monthsToShow = inst.options.monthsToShow;
2021
			monthsToShow = ($.isArray(monthsToShow) ? monthsToShow : [1, monthsToShow]);
2022
			var fixedWeeks = inst.options.fixedWeeks || (monthsToShow[0] * monthsToShow[1] > 1);
2023
			var firstDay = inst.options.firstDay;
2024
			var leadDays = (plugin.newDate(year, month, 1).getDay() - firstDay + 7) % 7;
2025
			var numWeeks = (fixedWeeks ? 6 : Math.ceil((leadDays + daysInMonth) / 7));
2026
			var selectOtherMonths = inst.options.selectOtherMonths && inst.options.showOtherMonths;
2027
			var minDate = (inst.pickingRange ? inst.selectedDates[0] : inst.get('minDate'));
2028
			var maxDate = inst.get('maxDate');
2029
			var showWeeks = renderer.week.indexOf('{weekOfYear}') > -1;
2030
			var today = plugin.today();
2031
			var drawDate = plugin.newDate(year, month, 1);
2032
			plugin.add(drawDate, -leadDays - (fixedWeeks && (drawDate.getDay() === firstDay) ? 7 : 0), 'd');
2033
			var ts = drawDate.getTime();
2034
			// Generate weeks
2035
			var weeks = '';
2036
			for (var week = 0; week < numWeeks; week++) {
2037
				var weekOfYear = (!showWeeks ? '' : '<span class="dp' + ts + '">' +
2038
					($.isFunction(inst.options.calculateWeek) ? inst.options.calculateWeek(drawDate) : 0) + '</span>');
2039
				var days = '';
2040
				for (var day = 0; day < 7; day++) {
2041
					var selected = false;
2042
					if (inst.options.rangeSelect && inst.selectedDates.length > 0) {
2043
						selected = (drawDate.getTime() >= inst.selectedDates[0] &&
2044
							drawDate.getTime() <= inst.selectedDates[1]);
2045
					}
2046
					else {
2047
						for (var i = 0; i < inst.selectedDates.length; i++) {
2048
							if (inst.selectedDates[i].getTime() === drawDate.getTime()) {
2049
								selected = true;
2050
								break;
2051
							}
2052
						}
2053
					}
2054
					var dateInfo = (!$.isFunction(inst.options.onDate) ? {} :
2055
						inst.options.onDate.apply(elem, [drawDate, drawDate.getMonth() + 1 === month]));
2056
					var selectable = (selectOtherMonths || drawDate.getMonth() + 1 === month) &&
2057
						this._isSelectable(elem, drawDate, dateInfo.selectable, minDate, maxDate);
2058
					days += this._prepare(renderer.day, inst).replace(/\{day\}/g,
2059
						(selectable ? '<a href="javascript:void(0)"' : '<span') +
2060
						' class="dp' + ts + ' ' + (dateInfo.dateClass || '') +
2061
						(selected && (selectOtherMonths || drawDate.getMonth() + 1 === month) ?
2062
						' ' + renderer.selectedClass : '') +
2063
						(selectable ? ' ' + renderer.defaultClass : '') +
2064
						((drawDate.getDay() || 7) < 6 ? '' : ' ' + renderer.weekendClass) +
2065
						(drawDate.getMonth() + 1 === month ? '' : ' ' + renderer.otherMonthClass) +
2066
						(drawDate.getTime() === today.getTime() && (drawDate.getMonth() + 1) === month ?
2067
						' ' + renderer.todayClass : '') +
2068
						(drawDate.getTime() === inst.drawDate.getTime() && (drawDate.getMonth() + 1) === month ?
2069
						' ' + renderer.highlightedClass : '') + '"' +
2070
						(dateInfo.title || (inst.options.dayStatus && selectable) ? ' title="' +
2071
						(dateInfo.title || plugin.formatDate(
2072
						inst.options.dayStatus, drawDate, inst.getConfig())) + '"' : '') + '>' +
2073
						(inst.options.showOtherMonths || (drawDate.getMonth() + 1) === month ?
2074
						dateInfo.content || drawDate.getDate() : '&nbsp;') +
2075
						(selectable ? '</a>' : '</span>'));
2076
					plugin.add(drawDate, 1, 'd');
2077
					ts = drawDate.getTime();
2078
				}
2079
				weeks += this._prepare(renderer.week, inst).replace(/\{days\}/g, days).
2080
					replace(/\{weekOfYear\}/g, weekOfYear);
2081
			}
2082
			var monthHeader = this._prepare(renderer.month, inst).match(/\{monthHeader(:[^\}]+)?\}/);
2083
			monthHeader = (monthHeader[0].length <= 13 ? 'MM yyyy' :
2084
				monthHeader[0].substring(13, monthHeader[0].length - 1));
2085
			monthHeader = (first ? this._generateMonthSelection(
2086
				inst, year, month, minDate, maxDate, monthHeader, renderer) :
2087
				plugin.formatDate(monthHeader, plugin.newDate(year, month, 1), inst.getConfig()));
2088
			var weekHeader = this._prepare(renderer.weekHeader, inst).
2089
				replace(/\{days\}/g, this._generateDayHeaders(inst, renderer));
2090
			return this._prepare(renderer.month, inst).replace(/\{monthHeader(:[^\}]+)?\}/g, monthHeader).
2091
				replace(/\{weekHeader\}/g, weekHeader).replace(/\{weeks\}/g, weeks);
2092
		},
2093
 
2094
		/** Generate the HTML for the day headers.
2095
			@private
2096
			@param inst {object} The current instance settings.
2097
			@param renderer {object} The rendering templates.
2098
			@return {string} A week's worth of day headers. */
2099
		_generateDayHeaders: function(inst, renderer) {
2100
			var header = '';
2101
			for (var day = 0; day < 7; day++) {
2102
				var dow = (day + inst.options.firstDay) % 7;
2103
				header += this._prepare(renderer.dayHeader, inst).replace(/\{day\}/g,
2104
					'<span class="' + this._curDoWClass + dow + '" title="' +
2105
					inst.options.dayNames[dow] + '">' + inst.options.dayNamesMin[dow] + '</span>');
2106
			}
2107
			return header;
2108
		},
2109
 
2110
		/** Generate selection controls for month.
2111
			@private
2112
			@param inst {object} The current instance settings.
2113
			@param year {number} The year to generate.
2114
			@param month {number} The month to generate.
2115
			@param minDate {Date} The minimum date allowed.
2116
			@param maxDate {Date} The maximum date allowed.
2117
			@param monthHeader {string} The month/year format.
2118
			@return {string} The month selection content. */
2119
		_generateMonthSelection: function(inst, year, month, minDate, maxDate, monthHeader) {
2120
			if (!inst.options.changeMonth) {
2121
				return plugin.formatDate(
2122
					monthHeader, plugin.newDate(year, month, 1), inst.getConfig());
2123
			}
2124
			// Months
2125
			var monthNames = inst.options['monthNames' + (monthHeader.match(/mm/i) ? '' : 'Short')];
2126
			var html = monthHeader.replace(/m+/i, '\\x2E').replace(/y+/i, '\\x2F');
2127
			var selector = '<select class="' + this._monthYearClass +
2128
				'" title="' + inst.options.monthStatus + '">';
2129
			for (var m = 1; m <= 12; m++) {
2130
				if ((!minDate || plugin.newDate(year, m, plugin.daysInMonth(year, m)).
2131
						getTime() >= minDate.getTime()) &&
2132
						(!maxDate || plugin.newDate(year, m, 1).getTime() <= maxDate.getTime())) {
2133
					selector += '<option value="' + m + '/' + year + '"' +
2134
						(month === m ? ' selected="selected"' : '') + '>' +
2135
						monthNames[m - 1] + '</option>';
2136
				}
2137
			}
2138
			selector += '</select>';
2139
			html = html.replace(/\\x2E/, selector);
2140
			// Years
2141
			var yearRange = inst.options.yearRange;
2142
			if (yearRange === 'any') {
2143
				selector = '<select class="' + this._monthYearClass + ' ' + this._anyYearClass +
2144
					'" title="' + inst.options.yearStatus + '">' +
2145
					'<option>' + year + '</option></select>' +
2146
					'<input class="' + this._monthYearClass + ' ' + this._curMonthClass +
2147
					month + '" value="' + year + '">';
2148
			}
2149
			else {
2150
				yearRange = yearRange.split(':');
2151
				var todayYear = plugin.today().getFullYear();
2152
				var start = (yearRange[0].match('c[+-].*') ? year + parseInt(yearRange[0].substring(1), 10) :
2153
					((yearRange[0].match('[+-].*') ? todayYear : 0) + parseInt(yearRange[0], 10)));
2154
				var end = (yearRange[1].match('c[+-].*') ? year + parseInt(yearRange[1].substring(1), 10) :
2155
					((yearRange[1].match('[+-].*') ? todayYear : 0) + parseInt(yearRange[1], 10)));
2156
				selector = '<select class="' + this._monthYearClass +
2157
					'" title="' + inst.options.yearStatus + '">';
2158
				start = plugin.add(plugin.newDate(start + 1, 1, 1), -1, 'd');
2159
				end = plugin.newDate(end, 1, 1);
2160
				var addYear = function(y) {
2161
					if (y !== 0) {
2162
						selector += '<option value="' + month + '/' + y + '"' +
2163
							(year === y ? ' selected="selected"' : '') + '>' + y + '</option>';
2164
					}
2165
				};
2166
				if (start.getTime() < end.getTime()) {
2167
					start = (minDate && minDate.getTime() > start.getTime() ? minDate : start).getFullYear();
2168
					end = (maxDate && maxDate.getTime() < end.getTime() ? maxDate : end).getFullYear();
2169
					for (var y = start; y <= end; y++) {
2170
						addYear(y);
2171
					}
2172
				}
2173
				else {
2174
					start = (maxDate && maxDate.getTime() < start.getTime() ? maxDate : start).getFullYear();
2175
					end = (minDate && minDate.getTime() > end.getTime() ? minDate : end).getFullYear();
2176
					for (var y = start; y >= end; y--) {
2177
						addYear(y);
2178
					}
2179
				}
2180
				selector += '</select>';
2181
			}
2182
			html = html.replace(/\\x2F/, selector);
2183
			return html;
2184
		},
2185
 
2186
		/** Prepare a render template for use.
2187
			Exclude popup/inline sections that are not applicable.
2188
			Localise text of the form: {l10n:name}.
2189
			@private
2190
			@param text {string} The text to localise.
2191
			@param inst {object} The current instance settings.
2192
			@return {string} The localised text. */
2193
		_prepare: function(text, inst) {
2194
			var replaceSection = function(type, retain) {
2195
				while (true) {
2196
					var start = text.indexOf('{' + type + ':start}');
2197
					if (start === -1) {
2198
						return;
2199
					}
2200
					var end = text.substring(start).indexOf('{' + type + ':end}');
2201
					if (end > -1) {
2202
						text = text.substring(0, start) +
2203
							(retain ? text.substr(start + type.length + 8, end - type.length - 8) : '') +
2204
							text.substring(start + end + type.length + 6);
2205
					}
2206
				}
2207
			};
2208
			replaceSection('inline', inst.inline);
2209
			replaceSection('popup', !inst.inline);
2210
			var pattern = /\{l10n:([^\}]+)\}/;
2211
			var matches = null;
2212
			while (matches = pattern.exec(text)) {
2213
				text = text.replace(matches[0], inst.options[matches[1]]);
2214
			}
2215
			return text;
2216
		}
2217
	});
2218
 
2219
	var plugin = $.datepick; // Singleton instance
2220
 
2221
	$(function() {
2222
		$(document).on('mousedown.' + pluginName, plugin._checkExternalClick).
2223
			on('resize.' + pluginName, function() { plugin.hide(plugin.curInst); });
2224
	});
2225
 
2226
})(jQuery);