- Add all jQuery UI files (for future use) in stable version (1.5.2).

- Use jQuery cluetip plugin for new plugins page.
- Remove old CSS tooltip rules.

git-svn-id: http://piwigo.org/svn/trunk@2587 68402e56-0260-453c-a942-63ccdbb3a9ee

1 files changed, 1533 insertions, 0 deletions

diff --git a/template-common/lib/ui/ui.datepicker.js b/template-common/lib/ui/ui.datepicker.js
new file mode 100644
index 000000000..2ddca2889
--- /dev/null
+++ b/template-common/lib/ui/ui.datepicker.js
@@ -0,0 +1,1533 @@
+/*
+ * jQuery UI Datepicker
+ *
+ * Copyright (c) 2006, 2007, 2008 Marc Grabanski
+ * Dual licensed under the MIT (MIT-LICENSE.txt)
+ * and GPL (GPL-LICENSE.txt) licenses.
+ * 
+ * http://docs.jquery.com/UI/Datepicker
+ *
+ * Depends:
+ *	ui.core.js
+ *
+ * Marc Grabanski (m@marcgrabanski.com) and Keith Wood (kbwood@virginbroadband.com.au).
+ */
+   
+(function($) { // hide the namespace
+
+var PROP_NAME = 'datepicker';
+
+/* Date picker manager.
+   Use the singleton instance of this class, $.datepicker, to interact with the date picker.
+   Settings for (groups of) date pickers are maintained in an instance object,
+   allowing multiple different settings on the same page. */
+
+function Datepicker() {
+	this.debug = false; // Change this to true to start debugging
+	this._curInst = null; // The current instance in use
+	this._disabledInputs = []; // List of date picker inputs that have been disabled
+	this._datepickerShowing = false; // True if the popup picker is showing , false if not
+	this._inDialog = false; // True if showing within a "dialog", false if not
+	this._mainDivId = 'ui-datepicker-div'; // The ID of the main datepicker division
+	this._appendClass = 'ui-datepicker-append'; // The name of the append marker class
+	this._triggerClass = 'ui-datepicker-trigger'; // The name of the trigger marker class
+	this._dialogClass = 'ui-datepicker-dialog'; // The name of the dialog marker class
+	this._promptClass = 'ui-datepicker-prompt'; // The name of the dialog prompt marker class
+	this._unselectableClass = 'ui-datepicker-unselectable'; // The name of the unselectable cell marker class
+	this._currentClass = 'ui-datepicker-current-day'; // The name of the current day marker class
+	this.regional = []; // Available regional settings, indexed by language code
+	this.regional[''] = { // Default regional settings
+		clearText: 'Clear', // Display text for clear link
+		clearStatus: 'Erase the current date', // Status text for clear link
+		closeText: 'Close', // Display text for close link
+		closeStatus: 'Close without change', // Status text for close link
+		prevText: '<Prev', // Display text for previous month link
+		prevStatus: 'Show the previous month', // Status text for previous month link
+		nextText: 'Next>', // Display text for next month link
+		nextStatus: 'Show the next month', // Status text for next month link
+		currentText: 'Today', // Display text for current month link
+		currentStatus: 'Show the current month', // Status text for current month link
+		monthNames: ['January','February','March','April','May','June',
+			'July','August','September','October','November','December'], // Names of months for drop-down and formatting
+		monthNamesShort: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'], // For formatting
+		monthStatus: 'Show a different month', // Status text for selecting a month
+		yearStatus: 'Show a different year', // Status text for selecting a year
+		weekHeader: 'Wk', // Header for the week of the year column
+		weekStatus: 'Week of the year', // Status text for the week of the year column
+		dayNames: ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'], // For formatting
+		dayNamesShort: ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'], // For formatting
+		dayNamesMin: ['Su','Mo','Tu','We','Th','Fr','Sa'], // Column headings for days starting at Sunday
+		dayStatus: 'Set DD as first week day', // Status text for the day of the week selection
+		dateStatus: 'Select DD, M d', // Status text for the date selection
+		dateFormat: 'mm/dd/yy', // See format options on parseDate
+		firstDay: 0, // The first day of the week, Sun = 0, Mon = 1, ...
+		initStatus: 'Select a date', // Initial Status text on opening
+		isRTL: false // True if right-to-left language, false if left-to-right
+	};
+	this._defaults = { // Global defaults for all the date picker instances
+		showOn: 'focus', // 'focus' for popup on focus,
+			// 'button' for trigger button, or 'both' for either
+		showAnim: 'show', // Name of jQuery animation for popup
+		showOptions: {}, // Options for enhanced animations
+		defaultDate: null, // Used when field is blank: actual date,
+			// +/-number for offset from today, null for today
+		appendText: '', // Display text following the input box, e.g. showing the format
+		buttonText: '...', // Text for trigger button
+		buttonImage: '', // URL for trigger button image
+		buttonImageOnly: false, // True if the image appears alone, false if it appears on a button
+		closeAtTop: true, // True to have the clear/close at the top,
+			// false to have them at the bottom
+		mandatory: false, // True to hide the Clear link, false to include it
+		hideIfNoPrevNext: false, // True to hide next/previous month links
+			// if not applicable, false to just disable them
+		navigationAsDateFormat: false, // True if date formatting applied to prev/today/next links
+		gotoCurrent: false, // True if today link goes back to current selection instead
+		changeMonth: true, // True if month can be selected directly, false if only prev/next
+		changeYear: true, // True if year can be selected directly, false if only prev/next
+		yearRange: '-10:+10', // Range of years to display in drop-down,
+			// either relative to current year (-nn:+nn) or absolute (nnnn:nnnn)
+		changeFirstDay: true, // True to click on day name to change, false to remain as set
+		highlightWeek: false, // True to highlight the selected week
+		showOtherMonths: false, // True to show dates in other months, false to leave blank
+		showWeeks: false, // True to show week of the year, false to omit
+		calculateWeek: this.iso8601Week, // How to calculate the week of the year,
+			// takes a Date and returns the number of the week for it
+		shortYearCutoff: '+10', // Short year values < this are in the current century,
+			// > this are in the previous century, 
+			// string value starting with '+' for current year + value
+		showStatus: false, // True to show status bar at bottom, false to not show it
+		statusForDate: this.dateStatus, // Function to provide status text for a date -
+			// takes date and instance as parameters, returns display text
+		minDate: null, // The earliest selectable date, or null for no limit
+		maxDate: null, // The latest selectable date, or null for no limit
+		duration: 'normal', // Duration of display/closure
+		beforeShowDay: null, // Function that takes a date and returns an array with
+			// [0] = true if selectable, false if not, [1] = custom CSS class name(s) or '', 
+			// [2] = cell title (optional), e.g. $.datepicker.noWeekends
+		beforeShow: null, // Function that takes an input field and
+			// returns a set of custom settings for the date picker
+		onSelect: null, // Define a callback function when a date is selected
+		onChangeMonthYear: null, // Define a callback function when the month or year is changed
+		onClose: null, // Define a callback function when the datepicker is closed
+		numberOfMonths: 1, // Number of months to show at a time
+		stepMonths: 1, // Number of months to step back/forward
+		rangeSelect: false, // Allows for selecting a date range on one date picker
+		rangeSeparator: ' - ', // Text between two dates in a range
+		altField: '', // Selector for an alternate field to store selected dates into
+		altFormat: '' // The date format to use for the alternate field
+	};
+	$.extend(this._defaults, this.regional['']);
+	this.dpDiv = $('<div id="' + this._mainDivId + '" style="display: none;"></div>');
+}
+
+$.extend(Datepicker.prototype, {
+	/* Class name added to elements to indicate already configured with a date picker. */
+	markerClassName: 'hasDatepicker',
+
+	/* Debug logging (if enabled). */
+	log: function () {
+		if (this.debug)
+			console.log.apply('', arguments);
+	},
+	
+	/* Override the default settings for all instances of the date picker. 
+	   @param  settings  object - the new settings to use as defaults (anonymous object)
+	   @return the manager object */
+	setDefaults: function(settings) {
+		extendRemove(this._defaults, settings || {});
+		return this;
+	},
+
+	/* Attach the date picker to a jQuery selection.
+	   @param  target    element - the target input field or division or span
+	   @param  settings  object - the new settings to use for this date picker instance (anonymous) */
+	_attachDatepicker: function(target, settings) {
+		// check for settings on the control itself - in namespace 'date:'
+		var inlineSettings = null;
+		for (attrName in this._defaults) {
+			var attrValue = target.getAttribute('date:' + attrName);
+			if (attrValue) {
+				inlineSettings = inlineSettings || {};
+				try {
+					inlineSettings[attrName] = eval(attrValue);
+				} catch (err) {
+					inlineSettings[attrName] = attrValue;
+				}
+			}
+		}
+		var nodeName = target.nodeName.toLowerCase();
+		var inline = (nodeName == 'div' || nodeName == 'span');
+		if (!target.id)
+			target.id = 'dp' + new Date().getTime();
+		var inst = this._newInst($(target), inline);
+		inst.settings = $.extend({}, settings || {}, inlineSettings || {}); 
+		if (nodeName == 'input') {
+			this._connectDatepicker(target, inst);
+		} else if (inline) {
+			this._inlineDatepicker(target, inst);
+		}
+	},
+
+	/* Create a new instance object. */
+	_newInst: function(target, inline) {
+		return {id: target[0].id, input: target, // associated target
+			selectedDay: 0, selectedMonth: 0, selectedYear: 0, // current selection
+			drawMonth: 0, drawYear: 0, // month being drawn
+			inline: inline, // is datepicker inline or not
+			dpDiv: (!inline ? this.dpDiv : // presentation div
+			$('<div class="ui-datepicker-inline"></div>'))};
+	},
+
+	/* Attach the date picker to an input field. */
+	_connectDatepicker: function(target, inst) {
+		var input = $(target);
+		if (input.hasClass(this.markerClassName))
+			return;
+		var appendText = this._get(inst, 'appendText');
+		var isRTL = this._get(inst, 'isRTL');
+		if (appendText)
+			input[isRTL ? 'before' : 'after']('<span class="' + this._appendClass + '">' + appendText + '</span>');
+		var showOn = this._get(inst, 'showOn');
+		if (showOn == 'focus' || showOn == 'both') // pop-up date picker when in the marked field
+			input.focus(this._showDatepicker);
+		if (showOn == 'button' || showOn == 'both') { // pop-up date picker when button clicked
+			var buttonText = this._get(inst, 'buttonText');
+			var buttonImage = this._get(inst, 'buttonImage');
+			var trigger = $(this._get(inst, 'buttonImageOnly') ? 
+				$('<img/>').addClass(this._triggerClass).
+					attr({ src: buttonImage, alt: buttonText, title: buttonText }) :
+				$('<button type="button"></button>').addClass(this._triggerClass).
+					html(buttonImage == '' ? buttonText : $('<img/>').attr(
+					{ src:buttonImage, alt:buttonText, title:buttonText })));
+			input[isRTL ? 'before' : 'after'](trigger);
+			trigger.click(function() {
+				if ($.datepicker._datepickerShowing && $.datepicker._lastInput == target)
+					$.datepicker._hideDatepicker();
+				else
+					$.datepicker._showDatepicker(target);
+				return false;
+			});
+		}
+		input.addClass(this.markerClassName).keydown(this._doKeyDown).keypress(this._doKeyPress).
+			bind("setData.datepicker", function(event, key, value) {
+				inst.settings[key] = value;
+			}).bind("getData.datepicker", function(event, key) {
+				return this._get(inst, key);
+			});
+		$.data(target, PROP_NAME, inst);
+	},
+
+	/* Attach an inline date picker to a div. */
+	_inlineDatepicker: function(target, inst) {
+		var input = $(target);
+		if (input.hasClass(this.markerClassName))
+			return;
+		input.addClass(this.markerClassName).append(inst.dpDiv).
+			bind("setData.datepicker", function(event, key, value){
+				inst.settings[key] = value;
+			}).bind("getData.datepicker", function(event, key){
+				return this._get(inst, key);
+			});
+		$.data(target, PROP_NAME, inst);
+		this._setDate(inst, this._getDefaultDate(inst));
+		this._updateDatepicker(inst);
+	},
+
+	/* Tidy up after displaying the date picker. */
+	_inlineShow: function(inst) {
+		var numMonths = this._getNumberOfMonths(inst); // fix width for dynamic number of date pickers
+		inst.dpDiv.width(numMonths[1] * $('.ui-datepicker', inst.dpDiv[0]).width());
+	}, 
+
+	/* Pop-up the date picker in a "dialog" box.
+	   @param  input     element - ignored
+	   @param  dateText  string - the initial date to display (in the current format)
+	   @param  onSelect  function - the function(dateText) to call when a date is selected
+	   @param  settings  object - update the dialog date picker instance's settings (anonymous object)
+	   @param  pos       int[2] - coordinates for the dialog's position within the screen or
+	                     event - with x/y coordinates or
+	                     leave empty for default (screen centre)
+	   @return the manager object */
+	_dialogDatepicker: function(input, dateText, onSelect, settings, pos) {
+		var inst = this._dialogInst; // internal instance
+		if (!inst) {
+			var id = 'dp' + new Date().getTime();
+			this._dialogInput = $('<input type="text" id="' + id +
+				'" size="1" style="position: absolute; top: -100px;"/>');
+			this._dialogInput.keydown(this._doKeyDown);
+			$('body').append(this._dialogInput);
+			inst = this._dialogInst = this._newInst(this._dialogInput, false);
+			inst.settings = {};
+			$.data(this._dialogInput[0], PROP_NAME, inst);
+		}
+		extendRemove(inst.settings, settings || {});
+		this._dialogInput.val(dateText);
+
+		this._pos = (pos ? (pos.length ? pos : [pos.pageX, pos.pageY]) : null);
+		if (!this._pos) {
+			var browserWidth = window.innerWidth || document.documentElement.clientWidth ||	document.body.clientWidth;
+			var browserHeight = window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight;
+			var scrollX = document.documentElement.scrollLeft || document.body.scrollLeft;
+			var scrollY = document.documentElement.scrollTop || document.body.scrollTop;
+			this._pos = // should use actual width/height below
+				[(browserWidth / 2) - 100 + scrollX, (browserHeight / 2) - 150 + scrollY];
+		}
+
+		// move input on screen for focus, but hidden behind dialog
+		this._dialogInput.css('left', this._pos[0] + 'px').css('top', this._pos[1] + 'px');
+		inst.settings.onSelect = onSelect;
+		this._inDialog = true;
+		this.dpDiv.addClass(this._dialogClass);
+		this._showDatepicker(this._dialogInput[0]);
+		if ($.blockUI)
+			$.blockUI(this.dpDiv);
+		$.data(this._dialogInput[0], PROP_NAME, inst);
+		return this;
+	},
+
+	/* Detach a datepicker from its control.
+	   @param  target    element - the target input field or division or span */
+	_destroyDatepicker: function(target) {
+		var nodeName = target.nodeName.toLowerCase();
+		var $target = $(target);
+		$.removeData(target, PROP_NAME);
+		if (nodeName == 'input') {
+			$target.siblings('.' + this._appendClass).remove().end().
+				siblings('.' + this._triggerClass).remove().end().
+				removeClass(this.markerClassName).
+				unbind('focus', this._showDatepicker).
+				unbind('keydown', this._doKeyDown).
+				unbind('keypress', this._doKeyPress);
+		} else if (nodeName == 'div' || nodeName == 'span')
+			$target.removeClass(this.markerClassName).empty();
+	},
+
+	/* Enable the date picker to a jQuery selection.
+	   @param  target    element - the target input field or division or span */
+	_enableDatepicker: function(target) {
+		target.disabled = false;
+		$(target).siblings('button.' + this._triggerClass).each(function() { this.disabled = false; }).end().
+			siblings('img.' + this._triggerClass).css({opacity: '1.0', cursor: ''});
+		this._disabledInputs = $.map(this._disabledInputs,
+			function(value) { return (value == target ? null : value); }); // delete entry
+	},
+
+	/* Disable the date picker to a jQuery selection.
+	   @param  target    element - the target input field or division or span */
+	_disableDatepicker: function(target) {
+		target.disabled = true;
+		$(target).siblings('button.' + this._triggerClass).each(function() { this.disabled = true; }).end().
+			siblings('img.' + this._triggerClass).css({opacity: '0.5', cursor: 'default'});
+		this._disabledInputs = $.map(this._disabledInputs,
+			function(value) { return (value == target ? null : value); }); // delete entry
+		this._disabledInputs[this._disabledInputs.length] = target;
+	},
+
+	/* Is the first field in a jQuery collection disabled as a datepicker?
+	   @param  target    element - the target input field or division or span
+	   @return boolean - true if disabled, false if enabled */
+	_isDisabledDatepicker: function(target) {
+		if (!target)
+			return false;
+		for (var i = 0; i < this._disabledInputs.length; i++) {
+			if (this._disabledInputs[i] == target)
+				return true;
+		}
+		return false;
+	},
+
+	/* Update the settings for a date picker attached to an input field or division.
+	   @param  target  element - the target input field or division or span
+	   @param  name    object - the new settings to update or
+	                   string - the name of the setting to change or
+	   @param  value   any - the new value for the setting (omit if above is an object) */
+	_changeDatepicker: function(target, name, value) {
+		var settings = name || {};
+		if (typeof name == 'string') {
+			settings = {};
+			settings[name] = value;
+		}
+		if (inst = $.data(target, PROP_NAME)) {
+			extendRemove(inst.settings, settings);
+			this._updateDatepicker(inst);
+		}
+	},
+
+	/* Set the dates for a jQuery selection.
+	   @param  target   element - the target input field or division or span
+	   @param  date     Date - the new date
+	   @param  endDate  Date - the new end date for a range (optional) */
+	_setDateDatepicker: function(target, date, endDate) {
+		var inst = $.data(target, PROP_NAME);
+		if (inst) {
+			this._setDate(inst, date, endDate);
+			this._updateDatepicker(inst);
+		}
+	},
+
+	/* Get the date(s) for the first entry in a jQuery selection.
+	   @param  target  element - the target input field or division or span
+	   @return Date - the current date or
+	           Date[2] - the current dates for a range */
+	_getDateDatepicker: function(target) {
+		var inst = $.data(target, PROP_NAME);
+		if (inst)
+			this._setDateFromField(inst); 
+		return (inst ? this._getDate(inst) : null);
+	},
+
+	/* Handle keystrokes. */
+	_doKeyDown: function(e) {
+		var inst = $.data(e.target, PROP_NAME);
+		var handled = true;
+		if ($.datepicker._datepickerShowing)
+			switch (e.keyCode) {
+				case 9:  $.datepicker._hideDatepicker(null, '');
+						break; // hide on tab out
+				case 13: $.datepicker._selectDay(e.target, inst.selectedMonth, inst.selectedYear,
+							$('td.ui-datepicker-days-cell-over', inst.dpDiv)[0]);
+						return false; // don't submit the form
+						break; // select the value on enter
+				case 27: $.datepicker._hideDatepicker(null, $.datepicker._get(inst, 'duration'));
+						break; // hide on escape
+				case 33: $.datepicker._adjustDate(e.target, (e.ctrlKey ? -1 :
+							-$.datepicker._get(inst, 'stepMonths')), (e.ctrlKey ? 'Y' : 'M'));
+						break; // previous month/year on page up/+ ctrl
+				case 34: $.datepicker._adjustDate(e.target, (e.ctrlKey ? +1 :
+							+$.datepicker._get(inst, 'stepMonths')), (e.ctrlKey ? 'Y' : 'M'));
+						break; // next month/year on page down/+ ctrl
+				case 35: if (e.ctrlKey) $.datepicker._clearDate(e.target);
+						break; // clear on ctrl+end
+				case 36: if (e.ctrlKey) $.datepicker._gotoToday(e.target);
+						break; // current on ctrl+home
+				case 37: if (e.ctrlKey) $.datepicker._adjustDate(e.target, -1, 'D');
+						break; // -1 day on ctrl+left
+				case 38: if (e.ctrlKey) $.datepicker._adjustDate(e.target, -7, 'D');
+						break; // -1 week on ctrl+up
+				case 39: if (e.ctrlKey) $.datepicker._adjustDate(e.target, +1, 'D');
+						break; // +1 day on ctrl+right
+				case 40: if (e.ctrlKey) $.datepicker._adjustDate(e.target, +7, 'D');
+						break; // +1 week on ctrl+down
+				default: handled = false;
+			}
+		else if (e.keyCode == 36 && e.ctrlKey) // display the date picker on ctrl+home
+			$.datepicker._showDatepicker(this);
+		else
+			handled = false;
+		if (handled) {
+			e.preventDefault();
+			e.stopPropagation();
+		}
+	},
+
+	/* Filter entered characters - based on date format. */
+	_doKeyPress: function(e) {
+		var inst = $.data(e.target, PROP_NAME);
+		var chars = $.datepicker._possibleChars($.datepicker._get(inst, 'dateFormat'));
+		var chr = String.fromCharCode(e.charCode == undefined ? e.keyCode : e.charCode);
+		return e.ctrlKey || (chr < ' ' || !chars || chars.indexOf(chr) > -1);
+	},
+
+	/* Pop-up the date picker for a given input field.
+	   @param  input  element - the input field attached to the date picker or
+	                  event - if triggered by focus */
+	_showDatepicker: function(input) {
+		input = input.target || input;
+		if (input.nodeName.toLowerCase() != 'input') // find from button/image trigger
+			input = $('input', input.parentNode)[0];
+		if ($.datepicker._isDisabledDatepicker(input) || $.datepicker._lastInput == input) // already here
+			return;
+		var inst = $.data(input, PROP_NAME);
+		var beforeShow = $.datepicker._get(inst, 'beforeShow');
+		extendRemove(inst.settings, (beforeShow ? beforeShow.apply(input, [input, inst]) : {}));
+		$.datepicker._hideDatepicker(null, '');
+		$.datepicker._lastInput = input;
+		$.datepicker._setDateFromField(inst);
+		if ($.datepicker._inDialog) // hide cursor
+			input.value = '';
+		if (!$.datepicker._pos) { // position below input
+			$.datepicker._pos = $.datepicker._findPos(input);
+			$.datepicker._pos[1] += input.offsetHeight; // add the height
+		}
+		var isFixed = false;
+		$(input).parents().each(function() {
+			isFixed |= $(this).css('position') == 'fixed';
+			return !isFixed;
+		});
+		if (isFixed && $.browser.opera) { // correction for Opera when fixed and scrolled
+			$.datepicker._pos[0] -= document.documentElement.scrollLeft;
+			$.datepicker._pos[1] -= document.documentElement.scrollTop;
+		}
+		var offset = {left: $.datepicker._pos[0], top: $.datepicker._pos[1]};
+		$.datepicker._pos = null;
+		inst.rangeStart = null;
+		// determine sizing offscreen
+		inst.dpDiv.css({position: 'absolute', display: 'block', top: '-1000px'});
+		$.datepicker._updateDatepicker(inst);
+		// fix width for dynamic number of date pickers
+		inst.dpDiv.width($.datepicker._getNumberOfMonths(inst)[1] *
+			$('.ui-datepicker', inst.dpDiv[0])[0].offsetWidth);
+		// and adjust position before showing
+		offset = $.datepicker._checkOffset(inst, offset, isFixed);
+		inst.dpDiv.css({position: ($.datepicker._inDialog && $.blockUI ?
+			'static' : (isFixed ? 'fixed' : 'absolute')), display: 'none',
+			left: offset.left + 'px', top: offset.top + 'px'});
+		if (!inst.inline) {
+			var showAnim = $.datepicker._get(inst, 'showAnim') || 'show';
+			var duration = $.datepicker._get(inst, 'duration');
+			var postProcess = function() {
+				$.datepicker._datepickerShowing = true;
+				if ($.browser.msie && parseInt($.browser.version) < 7) // fix IE < 7 select problems
+					$('iframe.ui-datepicker-cover').css({width: inst.dpDiv.width() + 4,
+						height: inst.dpDiv.height() + 4});
+			};
+			if ($.effects && $.effects[showAnim])
+				inst.dpDiv.show(showAnim, $.datepicker._get(inst, 'showOptions'), duration, postProcess);
+			else
+				inst.dpDiv[showAnim](duration, postProcess);
+			if (duration == '')
+				postProcess();
+			if (inst.input[0].type != 'hidden')
+				inst.input[0].focus();
+			$.datepicker._curInst = inst;
+		}
+	},
+
+	/* Generate the date picker content. */
+	_updateDatepicker: function(inst) {
+		var dims = {width: inst.dpDiv.width() + 4,
+			height: inst.dpDiv.height() + 4};
+		inst.dpDiv.empty().append(this._generateDatepicker(inst)).
+			find('iframe.ui-datepicker-cover').
+			css({width: dims.width, height: dims.height});
+		var numMonths = this._getNumberOfMonths(inst);
+		inst.dpDiv[(numMonths[0] != 1 || numMonths[1] != 1 ? 'add' : 'remove') +
+			'Class']('ui-datepicker-multi');
+		inst.dpDiv[(this._get(inst, 'isRTL') ? 'add' : 'remove') +
+			'Class']('ui-datepicker-rtl');
+		if (inst.input && inst.input[0].type != 'hidden')
+			$(inst.input[0]).focus();
+	},
+
+	/* Check positioning to remain on screen. */
+	_checkOffset: function(inst, offset, isFixed) {
+		var pos = inst.input ? this._findPos(inst.input[0]) : null;
+		var browserWidth = window.innerWidth || document.documentElement.clientWidth;
+		var browserHeight = window.innerHeight || document.documentElement.clientHeight;
+		var scrollX = document.documentElement.scrollLeft || document.body.scrollLeft;
+		var scrollY = document.documentElement.scrollTop || document.body.scrollTop;
+		// reposition date picker horizontally if outside the browser window
+		if (this._get(inst, 'isRTL') || (offset.left + inst.dpDiv.width() - scrollX) > browserWidth)
+			offset.left = Math.max((isFixed ? 0 : scrollX),
+				pos[0] + (inst.input ? inst.input.width() : 0) - (isFixed ? scrollX : 0) - inst.dpDiv.width() -
+				(isFixed && $.browser.opera ? document.documentElement.scrollLeft : 0));
+		else
+			offset.left -= (isFixed ? scrollX : 0);
+		// reposition date picker vertically if outside the browser window
+		if ((offset.top + inst.dpDiv.height() - scrollY) > browserHeight)
+			offset.top = Math.max((isFixed ? 0 : scrollY),
+				pos[1] - (isFixed ? scrollY : 0) - (this._inDialog ? 0 : inst.dpDiv.height()) -
+				(isFixed && $.browser.opera ? document.documentElement.scrollTop : 0));
+		else
+			offset.top -= (isFixed ? scrollY : 0);
+		return offset;
+	},
+	
+	/* Find an object's position on the screen. */
+	_findPos: function(obj) {
+        while (obj && (obj.type == 'hidden' || obj.nodeType != 1)) {
+            obj = obj.nextSibling;
+        }
+        var position = $(obj).offset();
+	    return [position.left, position.top];
+	},
+
+	/* Hide the date picker from view.
+	   @param  input  element - the input field attached to the date picker
+	   @param  duration  string - the duration over which to close the date picker */
+	_hideDatepicker: function(input, duration) {
+		var inst = this._curInst;
+		if (!inst)
+			return;
+		var rangeSelect = this._get(inst, 'rangeSelect');
+		if (rangeSelect && this._stayOpen)
+			this._selectDate('#' + inst.id, this._formatDate(inst,
+				inst.currentDay, inst.currentMonth, inst.currentYear));
+		this._stayOpen = false;
+		if (this._datepickerShowing) {
+			duration = (duration != null ? duration : this._get(inst, 'duration'));
+			var showAnim = this._get(inst, 'showAnim');
+			var postProcess = function() {
+				$.datepicker._tidyDialog(inst);
+			};
+			if (duration != '' && $.effects && $.effects[showAnim])
+				inst.dpDiv.hide(showAnim, $.datepicker._get(inst, 'showOptions'),
+					duration, postProcess);
+			else
+				inst.dpDiv[(duration == '' ? 'hide' : (showAnim == 'slideDown' ? 'slideUp' :
+					(showAnim == 'fadeIn' ? 'fadeOut' : 'hide')))](duration, postProcess);
+			if (duration == '')
+				this._tidyDialog(inst);
+			var onClose = this._get(inst, 'onClose');
+			if (onClose)
+				onClose.apply((inst.input ? inst.input[0] : null),
+					[this._getDate(inst), inst]);  // trigger custom callback
+			this._datepickerShowing = false;
+			this._lastInput = null;
+			inst.settings.prompt = null;
+			if (this._inDialog) {
+				this._dialogInput.css({ position: 'absolute', left: '0', top: '-100px' });
+				if ($.blockUI) {
+					$.unblockUI();
+					$('body').append(this.dpDiv);
+				}
+			}
+			this._inDialog = false;
+		}
+		this._curInst = null;
+	},
+
+	/* Tidy up after a dialog display. */
+	_tidyDialog: function(inst) {
+		inst.dpDiv.removeClass(this._dialogClass).unbind('.ui-datepicker');
+		$('.' + this._promptClass, inst.dpDiv).remove();
+	},
+
+	/* Close date picker if clicked elsewhere. */
+	_checkExternalClick: function(event) {
+		if (!$.datepicker._curInst)
+			return;
+		var $target = $(event.target);
+		if (($target.parents('#' + $.datepicker._mainDivId).length == 0) &&
+				!$target.hasClass($.datepicker.markerClassName) &&
+				!$target.hasClass($.datepicker._triggerClass) &&
+				$.datepicker._datepickerShowing && !($.datepicker._inDialog && $.blockUI))
+			$.datepicker._hideDatepicker(null, '');
+	},
+
+	/* Adjust one of the date sub-fields. */
+	_adjustDate: function(id, offset, period) {
+		var target = $(id);
+		var inst = $.data(target[0], PROP_NAME);
+		this._adjustInstDate(inst, offset, period);
+		this._updateDatepicker(inst);
+	},
+
+	/* Action for current link. */
+	_gotoToday: function(id) {
+		var target = $(id);
+		var inst = $.data(target[0], PROP_NAME);
+		if (this._get(inst, 'gotoCurrent') && inst.currentDay) {
+			inst.selectedDay = inst.currentDay;
+			inst.drawMonth = inst.selectedMonth = inst.currentMonth;
+			inst.drawYear = inst.selectedYear = inst.currentYear;
+		}
+		else {
+		var date = new Date();
+		inst.selectedDay = date.getDate();
+		inst.drawMonth = inst.selectedMonth = date.getMonth();
+		inst.drawYear = inst.selectedYear = date.getFullYear();
+		}
+		this._adjustDate(target);
+		this._notifyChange(inst);
+	},
+
+	/* Action for selecting a new month/year. */
+	_selectMonthYear: function(id, select, period) {
+		var target = $(id);
+		var inst = $.data(target[0], PROP_NAME);
+		inst._selectingMonthYear = false;
+		inst[period == 'M' ? 'drawMonth' : 'drawYear'] =
+			select.options[select.selectedIndex].value - 0;
+		this._adjustDate(target);
+		this._notifyChange(inst);
+	},
+
+	/* Restore input focus after not changing month/year. */
+	_clickMonthYear: function(id) {
+		var target = $(id);
+		var inst = $.data(target[0], PROP_NAME);
+		if (inst.input && inst._selectingMonthYear && !$.browser.msie)
+			inst.input[0].focus();
+		inst._selectingMonthYear = !inst._selectingMonthYear;
+	},
+
+	/* Action for changing the first week day. */
+	_changeFirstDay: function(id, day) {
+		var target = $(id);
+		var inst = $.data(target[0], PROP_NAME);
+		inst.settings.firstDay = day;
+		this._updateDatepicker(inst);
+	},
+
+	/* Action for selecting a day. */
+	_selectDay: function(id, month, year, td) {
+		if ($(td).hasClass(this._unselectableClass))
+			return;
+		var target = $(id);
+		var inst = $.data(target[0], PROP_NAME);
+		var rangeSelect = this._get(inst, 'rangeSelect');
+		if (rangeSelect) {
+			this._stayOpen = !this._stayOpen;
+			if (this._stayOpen) {
+				$('.ui-datepicker td').removeClass(this._currentClass);
+				$(td).addClass(this._currentClass);
+			} 
+		}
+		inst.selectedDay = inst.currentDay = $('a', td).html();
+		inst.selectedMonth = inst.currentMonth = month;
+		inst.selectedYear = inst.currentYear = year;
+		if (this._stayOpen) {
+			inst.endDay = inst.endMonth = inst.endYear = null;
+		}
+		else if (rangeSelect) {
+			inst.endDay = inst.currentDay;
+			inst.endMonth = inst.currentMonth;
+			inst.endYear = inst.currentYear;
+		}
+		this._selectDate(id, this._formatDate(inst,
+			inst.currentDay, inst.currentMonth, inst.currentYear));
+		if (this._stayOpen) {
+			inst.rangeStart = new Date(inst.currentYear, inst.currentMonth, inst.currentDay);
+			this._updateDatepicker(inst);
+		}
+		else if (rangeSelect) {
+			inst.selectedDay = inst.currentDay = inst.rangeStart.getDate();
+			inst.selectedMonth = inst.currentMonth = inst.rangeStart.getMonth();
+			inst.selectedYear = inst.currentYear = inst.rangeStart.getFullYear();
+			inst.rangeStart = null;
+			if (inst.inline)
+				this._updateDatepicker(inst);
+		}
+	},
+
+	/* Erase the input field and hide the date picker. */
+	_clearDate: function(id) {
+		var target = $(id);
+		var inst = $.data(target[0], PROP_NAME);
+		if (this._get(inst, 'mandatory'))
+			return;
+		this._stayOpen = false;
+		inst.endDay = inst.endMonth = inst.endYear = inst.rangeStart = null;
+		this._selectDate(target, '');
+	},
+
+	/* Update the input field with the selected date. */
+	_selectDate: function(id, dateStr) {
+		var target = $(id);
+		var inst = $.data(target[0], PROP_NAME);
+		dateStr = (dateStr != null ? dateStr : this._formatDate(inst));
+		if (this._get(inst, 'rangeSelect') && dateStr)
+			dateStr = (inst.rangeStart ? this._formatDate(inst, inst.rangeStart) :
+				dateStr) + this._get(inst, 'rangeSeparator') + dateStr;
+		if (inst.input)
+			inst.input.val(dateStr);
+		this._updateAlternate(inst);
+		var onSelect = this._get(inst, 'onSelect');
+		if (onSelect)
+			onSelect.apply((inst.input ? inst.input[0] : null), [dateStr, inst]);  // trigger custom callback
+		else if (inst.input)
+			inst.input.trigger('change'); // fire the change event
+		if (inst.inline)
+			this._updateDatepicker(inst);
+		else if (!this._stayOpen) {
+			this._hideDatepicker(null, this._get(inst, 'duration'));
+			this._lastInput = inst.input[0];
+			if (typeof(inst.input[0]) != 'object')
+				inst.input[0].focus(); // restore focus
+			this._lastInput = null;
+		}
+	},
+	
+	/* Update any alternate field to synchronise with the main field. */
+	_updateAlternate: function(inst) {
+		var altField = this._get(inst, 'altField');
+		if (altField) { // update alternate field too
+			var altFormat = this._get(inst, 'altFormat');
+			var date = this._getDate(inst);
+			dateStr = (isArray(date) ? (!date[0] && !date[1] ? '' :
+				this.formatDate(altFormat, date[0], this._getFormatConfig(inst)) +
+				this._get(inst, 'rangeSeparator') + this.formatDate(
+				altFormat, date[1] || date[0], this._getFormatConfig(inst))) :
+				this.formatDate(altFormat, date, this._getFormatConfig(inst)));
+			$(altField).each(function() { $(this).val(dateStr); });
+		}
+	},
+
+	/* Set as beforeShowDay function to prevent selection of weekends.
+	   @param  date  Date - the date to customise
+	   @return [boolean, string] - is this date selectable?, what is its CSS class? */
+	noWeekends: function(date) {
+		var day = date.getDay();
+		return [(day > 0 && day < 6), ''];
+	},
+	
+	/* Set as calculateWeek to determine the week of the year based on the ISO 8601 definition.
+	   @param  date  Date - the date to get the week for
+	   @return  number - the number of the week within the year that contains this date */
+	iso8601Week: function(date) {
+		var checkDate = new Date(date.getFullYear(), date.getMonth(), date.getDate(), (date.getTimezoneOffset() / -60));
+		var firstMon = new Date(checkDate.getFullYear(), 1 - 1, 4); // First week always contains 4 Jan
+		var firstDay = firstMon.getDay() || 7; // Day of week: Mon = 1, ..., Sun = 7
+		firstMon.setDate(firstMon.getDate() + 1 - firstDay); // Preceding Monday
+		if (firstDay < 4 && checkDate < firstMon) { // Adjust first three days in year if necessary
+			checkDate.setDate(checkDate.getDate() - 3); // Generate for previous year
+			return $.datepicker.iso8601Week(checkDate);
+		} else if (checkDate > new Date(checkDate.getFullYear(), 12 - 1, 28)) { // Check last three days in year
+			firstDay = new Date(checkDate.getFullYear() + 1, 1 - 1, 4).getDay() || 7;
+			if (firstDay > 4 && (checkDate.getDay() || 7) < firstDay - 3) { // Adjust if necessary
+				checkDate.setDate(checkDate.getDate() + 3); // Generate for next year
+				return $.datepicker.iso8601Week(checkDate);
+			}
+		}
+		return Math.floor(((checkDate - firstMon) / 86400000) / 7) + 1; // Weeks to given date
+	},
+	
+	/* Provide status text for a particular date.
+	   @param  date  the date to get the status for
+	   @param  inst  the current datepicker instance
+	   @return  the status display text for this date */
+	dateStatus: function(date, inst) {
+		return $.datepicker.formatDate($.datepicker._get(inst, 'dateStatus'),
+			date, $.datepicker._getFormatConfig(inst));
+	},
+
+	/* Parse a string value into a date object.
+	   See formatDate below for the possible formats.
+
+	   @param  format    string - the expected format of the date
+	   @param  value     string - the date in the above format
+	   @param  settings  Object - attributes include:
+	                     shortYearCutoff  number - the cutoff year for determining the century (optional)
+	                     dayNamesShort    string[7] - abbreviated names of the days from Sunday (optional)
+	                     dayNames         string[7] - names of the days from Sunday (optional)
+	                     monthNamesShort  string[12] - abbreviated names of the months (optional)
+	                     monthNames       string[12] - names of the months (optional)
+	   @return  Date - the extracted date value or null if value is blank */
+	parseDate: function (format, value, settings) {
+		if (format == null || value == null)
+			throw 'Invalid arguments';
+		value = (typeof value == 'object' ? value.toString() : value + '');
+		if (value == '')
+			return null;
+		var shortYearCutoff = (settings ? settings.shortYearCutoff : null) || this._defaults.shortYearCutoff;
+		var dayNamesShort = (settings ? settings.dayNamesShort : null) || this._defaults.dayNamesShort;
+		var dayNames = (settings ? settings.dayNames : null) || this._defaults.dayNames;
+		var monthNamesShort = (settings ? settings.monthNamesShort : null) || this._defaults.monthNamesShort;
+		var monthNames = (settings ? settings.monthNames : null) || this._defaults.monthNames;
+		var year = -1;
+		var month = -1;
+		var day = -1;
+		var literal = false;
+		// Check whether a format character is doubled
+		var lookAhead = function(match) {
+			var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) == match);
+			if (matches)
+				iFormat++;
+			return matches;	
+		};
+		// Extract a number from the string value
+		var getNumber = function(match) {
+			lookAhead(match);
+			var origSize = (match == '@' ? 14 : (match == 'y' ? 4 : 2));
+			var size = origSize;
+			var num = 0;
+			while (size > 0 && iValue < value.length &&
+					value.charAt(iValue) >= '0' && value.charAt(iValue) <= '9') {
+				num = num * 10 + (value.charAt(iValue++) - 0);
+				size--;
+			}
+			if (size == origSize)
+				throw 'Missing number at position ' + iValue;
+			return num;
+		};
+		// Extract a name from the string value and convert to an index
+		var getName = function(match, shortNames, longNames) {
+			var names = (lookAhead(match) ? longNames : shortNames);
+			var size = 0;
+			for (var j = 0; j < names.length; j++)
+				size = Math.max(size, names[j].length);
+			var name = '';
+			var iInit = iValue;
+			while (size > 0 && iValue < value.length) {
+				name += value.charAt(iValue++);
+				for (var i = 0; i < names.length; i++)
+					if (name == names[i])
+						return i + 1;
+				size--;
+			}
+			throw 'Unknown name at position ' + iInit;
+		};
+		// Confirm that a literal character matches the string value
+		var checkLiteral = function() {
+			if (value.charAt(iValue) != format.charAt(iFormat))
+				throw 'Unexpected literal at position ' + iValue;
+			iValue++;
+		};
+		var iValue = 0;
+		for (var iFormat = 0; iFormat < format.length; iFormat++) {
+			if (literal)
+				if (format.charAt(iFormat) == "'" && !lookAhead("'"))
+					literal = false;
+				else
+					checkLiteral();
+			else
+				switch (format.charAt(iFormat)) {
+					case 'd':
+						day = getNumber('d');
+						break;
+					case 'D': 
+						getName('D', dayNamesShort, dayNames);
+						break;
+					case 'm': 
+						month = getNumber('m');
+						break;
+					case 'M':
+						month = getName('M', monthNamesShort, monthNames); 
+						break;
+					case 'y':
+						year = getNumber('y');
+						break;
+					case '@':
+						var date = new Date(getNumber('@'));
+						year = date.getFullYear();
+						month = date.getMonth() + 1;
+						day = date.getDate();
+						break;
+					case "'":
+						if (lookAhead("'"))
+							checkLiteral();
+						else
+							literal = true;
+						break;
+					default:
+						checkLiteral();
+				}
+		}
+		if (year < 100)
+			year += new Date().getFullYear() - new Date().getFullYear() % 100 +
+				(year <= shortYearCutoff ? 0 : -100);
+		var date = new Date(year, month - 1, day);
+		if (date.getFullYear() != year || date.getMonth() + 1 != month || date.getDate() != day)
+			throw 'Invalid date'; // E.g. 31/02/*
+		return date;
+	},
+
+	/* Standard date formats. */
+	ATOM: 'yy-mm-dd', // RFC 3339 (ISO 8601)
+	COOKIE: 'D, dd M yy',
+	ISO_8601: 'yy-mm-dd',
+	RFC_822: 'D, d M y',
+	RFC_850: 'DD, dd-M-y',
+	RFC_1036: 'D, d M y',
+	RFC_1123: 'D, d M yy',
+	RFC_2822: 'D, d M yy',
+	RSS: 'D, d M y', // RFC 822
+	TIMESTAMP: '@',
+	W3C: 'yy-mm-dd', // ISO 8601
+
+	/* Format a date object into a string value.
+	   The format can be combinations of the following:
+	   d  - day of month (no leading zero)
+	   dd - day of month (two digit)
+	   D  - day name short
+	   DD - day name long
+	   m  - month of year (no leading zero)
+	   mm - month of year (two digit)
+	   M  - month name short
+	   MM - month name long
+	   y  - year (two digit)
+	   yy - year (four digit)
+	   @ - Unix timestamp (ms since 01/01/1970)
+	   '...' - literal text
+	   '' - single quote
+
+	   @param  format    string - the desired format of the date
+	   @param  date      Date - the date value to format
+	   @param  settings  Object - attributes include:
+	                     dayNamesShort    string[7] - abbreviated names of the days from Sunday (optional)
+	                     dayNames         string[7] - names of the days from Sunday (optional)
+	                     monthNamesShort  string[12] - abbreviated names of the months (optional)
+	                     monthNames       string[12] - names of the months (optional)
+	   @return  string - the date in the above format */
+	formatDate: function (format, date, settings) {
+		if (!date)
+			return '';
+		var dayNamesShort = (settings ? settings.dayNamesShort : null) || this._defaults.dayNamesShort;
+		var dayNames = (settings ? settings.dayNames : null) || this._defaults.dayNames;
+		var monthNamesShort = (settings ? settings.monthNamesShort : null) || this._defaults.monthNamesShort;
+		var monthNames = (settings ? settings.monthNames : null) || this._defaults.monthNames;
+		// Check whether a format character is doubled
+		var lookAhead = function(match) {
+			var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) == match);
+			if (matches)
+				iFormat++;
+			return matches;	
+		};
+		// Format a number, with leading zero if necessary
+		var formatNumber = function(match, value) {
+			return (lookAhead(match) && value < 10 ? '0' : '') + value;
+		};
+		// Format a name, short or long as requested
+		var formatName = function(match, value, shortNames, longNames) {
+			return (lookAhead(match) ? longNames[value] : shortNames[value]);
+		};
+		var output = '';
+		var literal = false;
+		if (date)
+			for (var iFormat = 0; iFormat < format.length; iFormat++) {
+				if (literal)
+					if (format.charAt(iFormat) == "'" && !lookAhead("'"))
+						literal = false;
+					else
+						output += format.charAt(iFormat);
+				else
+					switch (format.charAt(iFormat)) {
+						case 'd':
+							output += formatNumber('d', date.getDate()); 
+							break;
+						case 'D': 
+							output += formatName('D', date.getDay(), dayNamesShort, dayNames);
+							break;
+						case 'm': 
+							output += formatNumber('m', date.getMonth() + 1); 
+							break;
+						case 'M':
+							output += formatName('M', date.getMonth(), monthNamesShort, monthNames); 
+							break;
+						case 'y':
+							output += (lookAhead('y') ? date.getFullYear() : 
+								(date.getYear() % 100 < 10 ? '0' : '') + date.getYear() % 100);
+							break;
+						case '@':
+							output += date.getTime(); 
+							break;
+						case "'":
+							if (lookAhead("'"))
+								output += "'";
+							else
+								literal = true;
+							break;
+						default:
+							output += format.charAt(iFormat);
+					}
+			}
+		return output;
+	},
+
+	/* Extract all possible characters from the date format. */
+	_possibleChars: function (format) {
+		var chars = '';
+		var literal = false;
+		for (var iFormat = 0; iFormat < format.length; iFormat++)
+			if (literal)
+				if (format.charAt(iFormat) == "'" && !lookAhead("'"))
+					literal = false;
+				else
+					chars += format.charAt(iFormat);
+			else
+				switch (format.charAt(iFormat)) {
+					case 'd': case 'm': case 'y': case '@':
+						chars += '0123456789'; 
+						break;
+					case 'D': case 'M':
+						return null; // Accept anything
+					case "'":
+						if (lookAhead("'"))
+							chars += "'";
+						else
+							literal = true;
+						break;
+					default:
+						chars += format.charAt(iFormat);
+				}
+		return chars;
+	},
+
+	/* Get a setting value, defaulting if necessary. */
+	_get: function(inst, name) {
+		return inst.settings[name] !== undefined ?
+			inst.settings[name] : this._defaults[name];
+	},
+
+	/* Parse existing date and initialise date picker. */
+	_setDateFromField: function(inst) {
+		var dateFormat = this._get(inst, 'dateFormat');
+		var dates = inst.input ? inst.input.val().split(this._get(inst, 'rangeSeparator')) : null; 
+		inst.endDay = inst.endMonth = inst.endYear = null;
+		var date = defaultDate = this._getDefaultDate(inst);
+		if (dates.length > 0) {
+			var settings = this._getFormatConfig(inst);
+			if (dates.length > 1) {
+				date = this.parseDate(dateFormat, dates[1], settings) || defaultDate;
+				inst.endDay = date.getDate();
+				inst.endMonth = date.getMonth();
+				inst.endYear = date.getFullYear();
+			}
+			try {
+				date = this.parseDate(dateFormat, dates[0], settings) || defaultDate;
+			} catch (e) {
+				this.log(e);
+				date = defaultDate;
+			}
+		}
+		inst.selectedDay = date.getDate();
+		inst.drawMonth = inst.selectedMonth = date.getMonth();
+		inst.drawYear = inst.selectedYear = date.getFullYear();
+		inst.currentDay = (dates[0] ? date.getDate() : 0);
+		inst.currentMonth = (dates[0] ? date.getMonth() : 0);
+		inst.currentYear = (dates[0] ? date.getFullYear() : 0);
+		this._adjustInstDate(inst);
+	},
+	
+	/* Retrieve the default date shown on opening. */
+	_getDefaultDate: function(inst) {
+		var date = this._determineDate(this._get(inst, 'defaultDate'), new Date());
+		var minDate = this._getMinMaxDate(inst, 'min', true);
+		var maxDate = this._getMinMaxDate(inst, 'max');
+		date = (minDate && date < minDate ? minDate : date);
+		date = (maxDate && date > maxDate ? maxDate : date);
+		return date;
+	},
+
+	/* A date may be specified as an exact value or a relative one. */
+	_determineDate: function(date, defaultDate) {
+		var offsetNumeric = function(offset) {
+			var date = new Date();
+			date.setUTCDate(date.getUTCDate() + offset);
+			return date;
+		};
+		var offsetString = function(offset, getDaysInMonth) {
+			var date = new Date();
+			var year = date.getFullYear();
+			var month = date.getMonth();
+			var day = date.getDate();
+			var pattern = /([+-]?[0-9]+)\s*(d|D|w|W|m|M|y|Y)?/g;
+			var matches = pattern.exec(offset);
+			while (matches) {
+				switch (matches[2] || 'd') {
+					case 'd' : case 'D' :
+						day += (matches[1] - 0); break;
+					case 'w' : case 'W' :
+						day += (matches[1] * 7); break;
+					case 'm' : case 'M' :
+						month += (matches[1] - 0); 
+						day = Math.min(day, getDaysInMonth(year, month));
+						break;
+					case 'y': case 'Y' :
+						year += (matches[1] - 0);
+						day = Math.min(day, getDaysInMonth(year, month));
+						break;
+				}
+				matches = pattern.exec(offset);
+			}
+			return new Date(year, month, day);
+		};
+		return (date == null ? defaultDate :
+			(typeof date == 'string' ? offsetString(date, this._getDaysInMonth) :
+			(typeof date == 'number' ? offsetNumeric(date) : date)));
+	},
+
+	/* Set the date(s) directly. */
+	_setDate: function(inst, date, endDate) {
+		var clear = !(date);
+		date = this._determineDate(date, new Date());
+		inst.selectedDay = inst.currentDay = date.getDate();
+		inst.drawMonth = inst.selectedMonth = inst.currentMonth = date.getMonth();
+		inst.drawYear = inst.selectedYear = inst.currentYear = date.getFullYear();
+		if (this._get(inst, 'rangeSelect')) {
+			if (endDate) {
+				endDate = this._determineDate(endDate, null);
+				inst.endDay = endDate.getDate();
+				inst.endMonth = endDate.getMonth();
+				inst.endYear = endDate.getFullYear();
+			} else {
+				inst.endDay = inst.currentDay;
+				inst.endMonth = inst.currentMonth;
+				inst.endYear = inst.currentYear;
+			}
+		}
+		this._adjustInstDate(inst);
+		if (inst.input)
+			inst.input.val(clear ? '' : this._formatDate(inst) +
+				(!this._get(inst, 'rangeSelect') ? '' : this._get(inst, 'rangeSeparator') +
+				this._formatDate(inst, inst.endDay, inst.endMonth, inst.endYear)));
+	},
+
+	/* Retrieve the date(s) directly. */
+	_getDate: function(inst) {
+		var startDate = (!inst.currentYear || (inst.input && inst.input.val() == '') ? null :
+			new Date(inst.currentYear, inst.currentMonth, inst.currentDay));
+		if (this._get(inst, 'rangeSelect')) {
+			return [inst.rangeStart || startDate, (!inst.endYear ? null :
+				new Date(inst.endYear, inst.endMonth, inst.endDay))];
+		} else
+			return startDate;
+	},
+
+	/* Generate the HTML for the current state of the date picker. */
+	_generateDatepicker: function(inst) {
+		var today = new Date();
+		today = new Date(today.getFullYear(), today.getMonth(), today.getDate()); // clear time
+		var showStatus = this._get(inst, 'showStatus');
+		var isRTL = this._get(inst, 'isRTL');
+		// build the date picker HTML
+		var clear = (this._get(inst, 'mandatory') ? '' :
+			'<div class="ui-datepicker-clear"><a onclick="jQuery.datepicker._clearDate(\'#' + inst.id + '\');"' +
+			(showStatus ? this._addStatus(inst, this._get(inst, 'clearStatus') || '&#xa0;') : '') + '>' +
+			this._get(inst, 'clearText') + '</a></div>');
+		var controls = '<div class="ui-datepicker-control">' + (isRTL ? '' : clear) +
+			'<div class="ui-datepicker-close"><a onclick="jQuery.datepicker._hideDatepicker();"' +
+			(showStatus ? this._addStatus(inst, this._get(inst, 'closeStatus') || '&#xa0;') : '') + '>' +
+			this._get(inst, 'closeText') + '</a></div>' + (isRTL ? clear : '')  + '</div>';
+		var prompt = this._get(inst, 'prompt');
+		var closeAtTop = this._get(inst, 'closeAtTop');
+		var hideIfNoPrevNext = this._get(inst, 'hideIfNoPrevNext');
+		var navigationAsDateFormat = this._get(inst, 'navigationAsDateFormat');
+		var numMonths = this._getNumberOfMonths(inst);
+		var stepMonths = this._get(inst, 'stepMonths');
+		var isMultiMonth = (numMonths[0] != 1 || numMonths[1] != 1);
+		var currentDate = (!inst.currentDay ? new Date(9999, 9, 9) :
+			new Date(inst.currentYear, inst.currentMonth, inst.currentDay));
+		var minDate = this._getMinMaxDate(inst, 'min', true);
+		var maxDate = this._getMinMaxDate(inst, 'max');
+		var drawMonth = inst.drawMonth;
+		var drawYear = inst.drawYear;
+		if (maxDate) {
+			var maxDraw = new Date(maxDate.getFullYear(),
+				maxDate.getMonth() - numMonths[1] + 1, maxDate.getDate());
+			maxDraw = (minDate && maxDraw < minDate ? minDate : maxDraw);
+			while (new Date(drawYear, drawMonth, 1) > maxDraw) {
+				drawMonth--;
+				if (drawMonth < 0) {
+					drawMonth = 11;
+					drawYear--;
+				}
+			}
+		}
+		// controls and links
+		var prevText = this._get(inst, 'prevText');
+		prevText = (!navigationAsDateFormat ? prevText : this.formatDate(
+			prevText, new Date(drawYear, drawMonth - stepMonths, 1), this._getFormatConfig(inst)));
+		var prev = '<div class="ui-datepicker-prev">' + (this._canAdjustMonth(inst, -1, drawYear, drawMonth) ? 
+			'<a onclick="jQuery.datepicker._adjustDate(\'#' + inst.id + '\', -' + stepMonths + ', \'M\');"' +
+			(showStatus ? this._addStatus(inst, this._get(inst, 'prevStatus') || '&#xa0;') : '') + '>' + prevText + '</a>' :
+			(hideIfNoPrevNext ? '' : '<label>' + prevText + '</label>')) + '</div>';
+		var nextText = this._get(inst, 'nextText');
+		nextText = (!navigationAsDateFormat ? nextText : this.formatDate(
+			nextText, new Date(drawYear, drawMonth + stepMonths, 1), this._getFormatConfig(inst)));
+		var next = '<div class="ui-datepicker-next">' + (this._canAdjustMonth(inst, +1, drawYear, drawMonth) ?
+			'<a onclick="jQuery.datepicker._adjustDate(\'#' + inst.id + '\', +' + stepMonths + ', \'M\');"' +
+			(showStatus ? this._addStatus(inst, this._get(inst, 'nextStatus') || '&#xa0;') : '') + '>' + nextText + '</a>' :
+			(hideIfNoPrevNext ? '' : '<label>' + nextText + '</label>')) + '</div>';
+		var currentText = this._get(inst, 'currentText');
+		currentText = (!navigationAsDateFormat ? currentText: this.formatDate(
+			currentText, today, this._getFormatConfig(inst)));
+		var html = (prompt ? '<div class="' + this._promptClass + '">' + prompt + '</div>' : '') +
+			(closeAtTop && !inst.inline ? controls : '') +
+			'<div class="ui-datepicker-links">' + (isRTL ? next : prev) +
+			(this._isInRange(inst, (this._get(inst, 'gotoCurrent') && inst.currentDay ?
+			currentDate : today)) ? '<div class="ui-datepicker-current">' +
+			'<a onclick="jQuery.datepicker._gotoToday(\'#' + inst.id + '\');"' +
+			(showStatus ? this._addStatus(inst, this._get(inst, 'currentStatus') || '&#xa0;') : '') + '>' +
+			currentText + '</a></div>' : '') + (isRTL ? prev : next) + '</div>';
+		var firstDay = this._get(inst, 'firstDay');
+		var changeFirstDay = this._get(inst, 'changeFirstDay');
+		var dayNames = this._get(inst, 'dayNames');
+		var dayNamesShort = this._get(inst, 'dayNamesShort');
+		var dayNamesMin = this._get(inst, 'dayNamesMin');
+		var monthNames = this._get(inst, 'monthNames');
+		var beforeShowDay = this._get(inst, 'beforeShowDay');
+		var highlightWeek = this._get(inst, 'highlightWeek');
+		var showOtherMonths = this._get(inst, 'showOtherMonths');
+		var showWeeks = this._get(inst, 'showWeeks');
+		var calculateWeek = this._get(inst, 'calculateWeek') || this.iso8601Week;
+		var status = (showStatus ? this._get(inst, 'dayStatus') || '&#xa0;' : '');
+		var dateStatus = this._get(inst, 'statusForDate') || this.dateStatus;
+		var endDate = inst.endDay ? new Date(inst.endYear, inst.endMonth, inst.endDay) : currentDate;
+		for (var row = 0; row < numMonths[0]; row++)
+			for (var col = 0; col < numMonths[1]; col++) {
+				var selectedDate = new Date(drawYear, drawMonth, inst.selectedDay);
+				html += '<div class="ui-datepicker-one-month' + (col == 0 ? ' ui-datepicker-new-row' : '') + '">' +
+					this._generateMonthYearHeader(inst, drawMonth, drawYear, minDate, maxDate,
+					selectedDate, row > 0 || col > 0, showStatus, monthNames) + // draw month headers
+					'<table class="ui-datepicker" cellpadding="0" cellspacing="0"><thead>' + 
+					'<tr class="ui-datepicker-title-row">' +
+					(showWeeks ? '<td>' + this._get(inst, 'weekHeader') + '</td>' : '');
+				for (var dow = 0; dow < 7; dow++) { // days of the week
+					var day = (dow + firstDay) % 7;
+					var dayStatus = (status.indexOf('DD') > -1 ? status.replace(/DD/, dayNames[day]) :
+						status.replace(/D/, dayNamesShort[day]));
+					html += '<td' + ((dow + firstDay + 6) % 7 >= 5 ? ' class="ui-datepicker-week-end-cell"' : '') + '>' +
+						(!changeFirstDay ? '<span' :
+						'<a onclick="jQuery.datepicker._changeFirstDay(\'#' + inst.id + '\', ' + day + ');"') + 
+						(showStatus ? this._addStatus(inst, dayStatus) : '') + ' title="' + dayNames[day] + '">' +
+						dayNamesMin[day] + (changeFirstDay ? '</a>' : '</span>') + '</td>';
+				}
+				html += '</tr></thead><tbody>';
+				var daysInMonth = this._getDaysInMonth(drawYear, drawMonth);
+				if (drawYear == inst.selectedYear && drawMonth == inst.selectedMonth)
+					inst.selectedDay = Math.min(inst.selectedDay, daysInMonth);
+				var leadDays = (this._getFirstDayOfMonth(drawYear, drawMonth) - firstDay + 7) % 7;
+				var printDate = new Date(drawYear, drawMonth, 1 - leadDays);
+				var numRows = (isMultiMonth ? 6 : Math.ceil((leadDays + daysInMonth) / 7)); // calculate the number of rows to generate
+				for (var dRow = 0; dRow < numRows; dRow++) { // create date picker rows
+					html += '<tr class="ui-datepicker-days-row">' +
+						(showWeeks ? '<td class="ui-datepicker-week-col">' + calculateWeek(printDate) + '</td>' : '');
+					for (var dow = 0; dow < 7; dow++) { // create date picker days
+						var daySettings = (beforeShowDay ?
+							beforeShowDay.apply((inst.input ? inst.input[0] : null), [printDate]) : [true, '']);
+						var otherMonth = (printDate.getMonth() != drawMonth);
+						var unselectable = otherMonth || !daySettings[0] ||
+							(minDate && printDate < minDate) || (maxDate && printDate > maxDate);
+						html += '<td class="ui-datepicker-days-cell' +
+							((dow + firstDay + 6) % 7 >= 5 ? ' ui-datepicker-week-end-cell' : '') + // highlight weekends
+							(otherMonth ? ' ui-datepicker-otherMonth' : '') + // highlight days from other months
+							(printDate.getTime() == selectedDate.getTime() && drawMonth == inst.selectedMonth ?
+							' ui-datepicker-days-cell-over' : '') + // highlight selected day
+							(unselectable ? ' ' + this._unselectableClass : '') +  // highlight unselectable days
+							(otherMonth && !showOtherMonths ? '' : ' ' + daySettings[1] + // highlight custom dates
+							(printDate.getTime() >= currentDate.getTime() && printDate.getTime() <= endDate.getTime() ?  // in current range
+							' ' + this._currentClass : '') + // highlight selected day
+							(printDate.getTime() == today.getTime() ? ' ui-datepicker-today' : '')) + '"' + // highlight today (if different)
+							((!otherMonth || showOtherMonths) && daySettings[2] ? ' title="' + daySettings[2] + '"' : '') + // cell title
+							(unselectable ? (highlightWeek ? ' onmouseover="jQuery(this).parent().addClass(\'ui-datepicker-week-over\');"' + // highlight selection week
+							' onmouseout="jQuery(this).parent().removeClass(\'ui-datepicker-week-over\');"' : '') : // unhighlight selection week
+							' onmouseover="jQuery(this).addClass(\'ui-datepicker-days-cell-over\')' + // highlight selection
+							(highlightWeek ? '.parent().addClass(\'ui-datepicker-week-over\')' : '') + ';' + // highlight selection week
+							(!showStatus || (otherMonth && !showOtherMonths) ? '' : 'jQuery(\'#ui-datepicker-status-' +
+							inst.id + '\').html(\'' + (dateStatus.apply((inst.input ? inst.input[0] : null),
+							[printDate, inst]) || '&#xa0;') +'\');') + '"' +
+							' onmouseout="jQuery(this).removeClass(\'ui-datepicker-days-cell-over\')' + // unhighlight selection
+							(highlightWeek ? '.parent().removeClass(\'ui-datepicker-week-over\')' : '') + ';' + // unhighlight selection week
+							(!showStatus || (otherMonth && !showOtherMonths) ? '' : 'jQuery(\'#ui-datepicker-status-' +
+							inst.id + '\').html(\'&#xa0;\');') + '" onclick="jQuery.datepicker._selectDay(\'#' +
+							inst.id + '\',' + drawMonth + ',' + drawYear + ', this);"') + '>' + // actions
+							(otherMonth ? (showOtherMonths ? printDate.getDate() : '&#xa0;') : // display for other months
+							(unselectable ? printDate.getDate() : '<a>' + printDate.getDate() + '</a>')) + '</td>'; // display for this month
+						printDate.setUTCDate(printDate.getUTCDate() + 1);
+					}
+					html += '</tr>';
+				}
+				drawMonth++;
+				if (drawMonth > 11) {
+					drawMonth = 0;
+					drawYear++;
+				}
+				html += '</tbody></table></div>';
+			}
+		html += (showStatus ? '<div style="clear: both;"></div><div id="ui-datepicker-status-' + inst.id + 
+			'" class="ui-datepicker-status">' + (this._get(inst, 'initStatus') || '&#xa0;') + '</div>' : '') +
+			(!closeAtTop && !inst.inline ? controls : '') +
+			'<div style="clear: both;"></div>' + 
+			($.browser.msie && parseInt($.browser.version) < 7 && !inst.inline ? 
+			'<iframe src="javascript:false;" class="ui-datepicker-cover"></iframe>' : '');
+		return html;
+	},
+	
+	/* Generate the month and year header. */
+	_generateMonthYearHeader: function(inst, drawMonth, drawYear, minDate, maxDate,
+			selectedDate, secondary, showStatus, monthNames) {
+		minDate = (inst.rangeStart && minDate && selectedDate < minDate ? selectedDate : minDate);
+		var html = '<div class="ui-datepicker-header">';
+		// month selection
+		if (secondary || !this._get(inst, 'changeMonth'))
+			html += monthNames[drawMonth] + '&#xa0;';
+		else {
+			var inMinYear = (minDate && minDate.getFullYear() == drawYear);
+			var inMaxYear = (maxDate && maxDate.getFullYear() == drawYear);
+			html += '<select class="ui-datepicker-new-month" ' +
+				'onchange="jQuery.datepicker._selectMonthYear(\'#' + inst.id + '\', this, \'M\');" ' +
+				'onclick="jQuery.datepicker._clickMonthYear(\'#' + inst.id + '\');"' +
+				(showStatus ? this._addStatus(inst, this._get(inst, 'monthStatus') || '&#xa0;') : '') + '>';
+			for (var month = 0; month < 12; month++) {
+				if ((!inMinYear || month >= minDate.getMonth()) &&
+						(!inMaxYear || month <= maxDate.getMonth()))
+					html += '<option value="' + month + '"' +
+						(month == drawMonth ? ' selected="selected"' : '') +
+						'>' + monthNames[month] + '</option>';
+			}
+			html += '</select>';
+		}
+		// year selection
+		if (secondary || !this._get(inst, 'changeYear'))
+			html += drawYear;
+		else {
+			// determine range of years to display
+			var years = this._get(inst, 'yearRange').split(':');
+			var year = 0;
+			var endYear = 0;
+			if (years.length != 2) {
+				year = drawYear - 10;
+				endYear = drawYear + 10;
+			} else if (years[0].charAt(0) == '+' || years[0].charAt(0) == '-') {
+				year = endYear = new Date().getFullYear();
+				year += parseInt(years[0], 10);
+				endYear += parseInt(years[1], 10);
+			} else {
+				year = parseInt(years[0], 10);
+				endYear = parseInt(years[1], 10);
+			}
+			year = (minDate ? Math.max(year, minDate.getFullYear()) : year);
+			endYear = (maxDate ? Math.min(endYear, maxDate.getFullYear()) : endYear);
+			html += '<select class="ui-datepicker-new-year" ' +
+				'onchange="jQuery.datepicker._selectMonthYear(\'#' + inst.id + '\', this, \'Y\');" ' +
+				'onclick="jQuery.datepicker._clickMonthYear(\'#' + inst.id + '\');"' +
+				(showStatus ? this._addStatus(inst, this._get(inst, 'yearStatus') || '&#xa0;') : '') + '>';
+			for (; year <= endYear; year++) {
+				html += '<option value="' + year + '"' +
+					(year == drawYear ? ' selected="selected"' : '') +
+					'>' + year + '</option>';
+			}
+			html += '</select>';
+		}
+		html += '</div>'; // Close datepicker_header
+		return html;
+	},
+
+	/* Provide code to set and clear the status panel. */
+	_addStatus: function(inst, text) {
+		return ' onmouseover="jQuery(\'#ui-datepicker-status-' + inst.id + '\').html(\'' + text + '\');" ' +
+			'onmouseout="jQuery(\'#ui-datepicker-status-' + inst.id + '\').html(\'&#xa0;\');"';
+	},
+
+	/* Adjust one of the date sub-fields. */
+	_adjustInstDate: function(inst, offset, period) {
+		var year = inst.drawYear + (period == 'Y' ? offset : 0);
+		var month = inst.drawMonth + (period == 'M' ? offset : 0);
+		var day = Math.min(inst.selectedDay, this._getDaysInMonth(year, month)) +
+			(period == 'D' ? offset : 0);
+		var date = new Date(year, month, day);
+		// ensure it is within the bounds set
+		var minDate = this._getMinMaxDate(inst, 'min', true);
+		var maxDate = this._getMinMaxDate(inst, 'max');
+		date = (minDate && date < minDate ? minDate : date);
+		date = (maxDate && date > maxDate ? maxDate : date);
+		inst.selectedDay = date.getDate();
+		inst.drawMonth = inst.selectedMonth = date.getMonth();
+		inst.drawYear = inst.selectedYear = date.getFullYear();
+		if (period == 'M' || period == 'Y')
+			this._notifyChange(inst);
+	},
+
+	/* Notify change of month/year. */
+	_notifyChange: function(inst) {
+		var onChange = this._get(inst, 'onChangeMonthYear');
+		if (onChange)
+			onChange.apply((inst.input ? inst.input[0] : null),
+				[new Date(inst.selectedYear, inst.selectedMonth, 1), inst]);
+	},
+	
+	/* Determine the number of months to show. */
+	_getNumberOfMonths: function(inst) {
+		var numMonths = this._get(inst, 'numberOfMonths');
+		return (numMonths == null ? [1, 1] : (typeof numMonths == 'number' ? [1, numMonths] : numMonths));
+	},
+
+	/* Determine the current maximum date - ensure no time components are set - may be overridden for a range. */
+	_getMinMaxDate: function(inst, minMax, checkRange) {
+		var date = this._determineDate(this._get(inst, minMax + 'Date'), null);
+		if (date) {
+			date.setHours(0);
+			date.setMinutes(0);
+			date.setSeconds(0);
+			date.setMilliseconds(0);
+		}
+		return (!checkRange || !inst.rangeStart ? date :
+			(!date || inst.rangeStart > date ? inst.rangeStart : date));
+	},
+
+	/* Find the number of days in a given month. */
+	_getDaysInMonth: function(year, month) {
+		return 32 - new Date(year, month, 32).getDate();
+	},
+
+	/* Find the day of the week of the first of a month. */
+	_getFirstDayOfMonth: function(year, month) {
+		return new Date(year, month, 1).getDay();
+	},
+
+	/* Determines if we should allow a "next/prev" month display change. */
+	_canAdjustMonth: function(inst, offset, curYear, curMonth) {
+		var numMonths = this._getNumberOfMonths(inst);
+		var date = new Date(curYear, curMonth + (offset < 0 ? offset : numMonths[1]), 1);
+		if (offset < 0)
+			date.setDate(this._getDaysInMonth(date.getFullYear(), date.getMonth()));
+		return this._isInRange(inst, date);
+	},
+
+	/* Is the given date in the accepted range? */
+	_isInRange: function(inst, date) {
+		// during range selection, use minimum of selected date and range start
+		var newMinDate = (!inst.rangeStart ? null :
+			new Date(inst.selectedYear, inst.selectedMonth, inst.selectedDay));
+		newMinDate = (newMinDate && inst.rangeStart < newMinDate ? inst.rangeStart : newMinDate);
+		var minDate = newMinDate || this._getMinMaxDate(inst, 'min');
+		var maxDate = this._getMinMaxDate(inst, 'max');
+		return ((!minDate || date >= minDate) && (!maxDate || date <= maxDate));
+	},
+	
+	/* Provide the configuration settings for formatting/parsing. */
+	_getFormatConfig: function(inst) {
+		var shortYearCutoff = this._get(inst, 'shortYearCutoff');
+		shortYearCutoff = (typeof shortYearCutoff != 'string' ? shortYearCutoff :
+			new Date().getFullYear() % 100 + parseInt(shortYearCutoff, 10));
+		return {shortYearCutoff: shortYearCutoff,
+			dayNamesShort: this._get(inst, 'dayNamesShort'), dayNames: this._get(inst, 'dayNames'),
+			monthNamesShort: this._get(inst, 'monthNamesShort'), monthNames: this._get(inst, 'monthNames')};
+	},
+
+	/* Format the given date for display. */
+	_formatDate: function(inst, day, month, year) {
+		if (!day) {
+			inst.currentDay = inst.selectedDay;
+			inst.currentMonth = inst.selectedMonth;
+			inst.currentYear = inst.selectedYear;
+		}
+		var date = (day ? (typeof day == 'object' ? day : new Date(year, month, day)) :
+			new Date(inst.currentYear, inst.currentMonth, inst.currentDay));
+		return this.formatDate(this._get(inst, 'dateFormat'), date, this._getFormatConfig(inst));
+	}
+});
+
+/* jQuery extend now ignores nulls! */
+function extendRemove(target, props) {
+	$.extend(target, props);
+	for (var name in props)
+		if (props[name] == null || props[name] == undefined)
+			target[name] = props[name];
+	return target;
+};
+
+/* Determine whether an object is an array. */
+function isArray(a) {
+	return (a && (($.browser.safari && typeof a == 'object' && a.length) ||
+		(a.constructor && a.constructor.toString().match(/\Array\(\)/))));
+};
+
+/* Invoke the datepicker functionality.
+   @param  options  string - a command, optionally followed by additional parameters or
+                    Object - settings for attaching new datepicker functionality
+   @return  jQuery object */
+$.fn.datepicker = function(options){
+	var otherArgs = Array.prototype.slice.call(arguments, 1);
+	if (typeof options == 'string' && (options == 'isDisabled' || options == 'getDate'))
+		return $.datepicker['_' + options + 'Datepicker'].
+			apply($.datepicker, [this[0]].concat(otherArgs));
+	return this.each(function() {
+		typeof options == 'string' ?
+			$.datepicker['_' + options + 'Datepicker'].
+				apply($.datepicker, [this].concat(otherArgs)) :
+			$.datepicker._attachDatepicker(this, options);
+	});
+};
+
+$.datepicker = new Datepicker(); // singleton instance
+	
+/* Initialise the date picker. */
+$(document).ready(function() {
+	$(document.body).append($.datepicker.dpDiv).
+		mousedown($.datepicker._checkExternalClick);
+});
+
+})(jQuery);