text: /*
   * jQuery UI Datepicker 1.8.13
   *
   * Copyright 2011, AUTHORS.txt (http://jqueryui.com/about)
   * Dual licensed under the MIT or GPL Version 2 licenses.
   * http://jquery.org/license
   *
   * http://docs.jquery.com/UI/Datepicker
   *
   * Depends:
   *	jquery.ui.core.js
   */
  (function( $, undefined ) {
  
  $.extend($.ui, { datepicker: { version: "1.8.13" } });
  
  var PROP_NAME = 'datepicker';
  var dpuuid = new Date().getTime();
  var instActive;
  
  /* 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._keyEvent = false; // If the last event was a key event
  	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._inlineClass = 'ui-datepicker-inline'; // The name of the inline marker class
  	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._disableClass = 'ui-datepicker-disabled'; // The name of the disabled covering 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._dayOverClass = 'ui-datepicker-days-cell-over'; // The name of the day hover marker class
  	this.regional = []; // Available regional settings, indexed by language code
  	this.regional[''] = { // Default regional settings
  		closeText: 'Done', // Display text for close link
  		prevText: '', // Display text for previous month link
  		nextText: '', // Display text for next month link
  		currentText: 'Today', // Display 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
  		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
  		weekHeader: 'Wk', // Column header for week of the year
  		dateFormat: 'mm/dd/yy', // See format options on parseDate
  		firstDay: 0, // The first day of the week, Sun = 0, Mon = 1, ...
  		isRTL: false, // True if right-to-left language, false if left-to-right
  		showMonthAfterYear: false, // True if the year select precedes month, false for month then year
  		yearSuffix: '' // Additional text to append to the year in the month headers
  	};
  	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: 'fadeIn', // 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
  		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: false, // True if month can be selected directly, false if only prev/next
  		changeYear: false, // True if year can be selected directly, false if only prev/next
  		yearRange: 'c-10:c+10', // Range of years to display in drop-down,
  			// either relative to today's year (-nn:+nn), relative to currently displayed year
  			// (c-nn:c+nn), absolute (nnnn:nnnn), or a combination of the above (nnnn:-n)
  		showOtherMonths: false, // True to show dates in other months, false to leave blank
  		selectOtherMonths: false, // True to allow selection of dates in other months, false for unselectable
  		showWeek: false, // True to show week of the year, false to not show it
  		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
  		minDate: null, // The earliest selectable date, or null for no limit
  		maxDate: null, // The latest selectable date, or null for no limit
  		duration: 'fast', // 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
  		showCurrentAtPos: 0, // The position in multipe months at which to show the current month (starting at 0)
  		stepMonths: 1, // Number of months to step back/forward
  		stepBigMonths: 12, // Number of months to step back/forward for the big links
  		altField: '', // Selector for an alternate field to store selected dates into
  		altFormat: '', // The date format to use for the alternate field
  		constrainInput: true, // The input is constrained by the current date format
  		showButtonPanel: false, // True to show button panel, false to not show it
  		autoSize: false // True to size the input for the date format, false to leave as is
  	};
  	$.extend(this._defaults, this.regional['']);
  	this.dpDiv = bindHover($('<div id="' + this._mainDivId + '" class="ui-datepicker ui-widget ui-widget-content ui-helper-clearfix ui-corner-all"></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);
  	},
  	
  	// TODO rename to "widget" when switching to widget factory
  	_widgetDatepicker: function() {
  		return this.dpDiv;
  	},
  
  	/* 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 (var 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) {
  			this.uuid += 1;
  			target.id = 'dp' + this.uuid;
  		}
  		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) {
  		var id = target[0].id.replace(/([^A-Za-z0-9_-])/g, '\\\\$1'); // escape jQuery meta chars
  		return {id: 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
  			bindHover($('<div class="' + this._inlineClass + ' ui-datepicker ui-widget ui-widget-content ui-helper-clearfix ui-corner-all"></div>')))};
  	},
  
  	/* Attach the date picker to an input field. */
  	_connectDatepicker: function(target, inst) {
  		var input = $(target);
  		inst.append = $([]);
  		inst.trigger = $([]);
  		if (input.hasClass(this.markerClassName))
  			return;
  		this._attachments(input, inst);
  		input.addClass(this.markerClassName).keydown(this._doKeyDown).
  			keypress(this._doKeyPress).keyup(this._doKeyUp).
  			bind("setData.datepicker", function(event, key, value) {
  				inst.settings[key] = value;
  			}).bind("getData.datepicker", function(event, key) {
  				return this._get(inst, key);
  			});
  		this._autoSize(inst);
  		$.data(target, PROP_NAME, inst);
  	},
  
  	/* Make attachments based on settings. */
  	_attachments: function(input, inst) {
  		var appendText = this._get(inst, 'appendText');
  		var isRTL = this._get(inst, 'isRTL');
  		if (inst.append)
  			inst.append.remove();
  		if (appendText) {
  			inst.append = $('<span class="' + this._appendClass + '">' + appendText + '</span>');
  			input[isRTL ? 'before' : 'after'](inst.append);
  		}
  		input.unbind('focus', this._showDatepicker);
  		if (inst.trigger)
  			inst.trigger.remove();
  		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');
  			inst.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 : $('<img/>').attr(
  					{ src:buttonImage, alt:buttonText, title:buttonText })));
  			input[isRTL ? 'before' : 'after'](inst.trigger);
  			inst.trigger.click(function() {
  				if ($.datepicker._datepickerShowing && $.datepicker._lastInput == input[0])
  					$.datepicker._hideDatepicker();
  				else
  					$.datepicker._showDatepicker(input[0]);
  				return false;
  			});
  		}
  	},
  
  	/* Apply the maximum length for the date format. */
  	_autoSize: function(inst) {
  		if (this._get(inst, 'autoSize') && !inst.inline) {
  			var date = new Date(2009, 12 - 1, 20); // Ensure double digits
  			var dateFormat = this._get(inst, 'dateFormat');
  			if (dateFormat.match(/[DM]/)) {
  				var findMax = function(names) {
  					var max = 0;
  					var maxI = 0;
  					for (var i = 0; i < names.length; i++) {
  						if (names[i].length > max) {
  							max = names[i].length;
  							maxI = i;
  						}
  					}
  					return maxI;
  				};
  				date.setMonth(findMax(this._get(inst, (dateFormat.match(/MM/) ?
  					'monthNames' : 'monthNamesShort'))));
  				date.setDate(findMax(this._get(inst, (dateFormat.match(/DD/) ?
  					'dayNames' : 'dayNamesShort'))) + 20 - date.getDay());
  			}
  			inst.input.attr('size', this._formatDate(inst, date).length);
  		}
  	},
  
  	/* Attach an inline date picker to a div. */
  	_inlineDatepicker: function(target, inst) {
  		var divSpan = $(target);
  		if (divSpan.hasClass(this.markerClassName))
  			return;
  		divSpan.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), true);
  		this._updateDatepicker(inst);
  		this._updateAlternate(inst);
  		inst.dpDiv.show();
  	},
  
  	/* Pop-up the date picker in a "dialog" box.
  	   @param  input     element - ignored
  	   @param  date      string or Date - the initial date to display
  	   @param  onSelect  function - the function 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, date, onSelect, settings, pos) {
  		var inst = this._dialogInst; // internal instance
  		if (!inst) {
  			this.uuid += 1;
  			var id = 'dp' + this.uuid;
  			this._dialogInput = $('<input type="text" id="' + id +
  				'" style="position: absolute; top: -100px; width: 0px; z-index: -10;"/>');
  			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 || {});
  		date = (date && date.constructor == Date ? this._formatDate(inst, date) : date);
  		this._dialogInput.val(date);
  
  		this._pos = (pos ? (pos.length ? pos : [pos.pageX, pos.pageY]) : null);
  		if (!this._pos) {
  			var browserWidth = document.documentElement.clientWidth;
  			var browserHeight = document.documentElement.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] + 20) + '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 $target = $(target);
  		var inst = $.data(target, PROP_NAME);
  		if (!$target.hasClass(this.markerClassName)) {
  			return;
  		}
  		var nodeName = target.nodeName.toLowerCase();
  		$.removeData(target, PROP_NAME);
  		if (nodeName == 'input') {
  			inst.append.remove();
  			inst.trigger.remove();
  			$target.removeClass(this.markerClassName).
  				unbind('focus', this._showDatepicker).
  				unbind('keydown', this._doKeyDown).
  				unbind('keypress', this._doKeyPress).
  				unbind('keyup', this._doKeyUp);
  		} 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) {
  		var $target = $(target);
  		var inst = $.data(target, PROP_NAME);
  		if (!$target.hasClass(this.markerClassName)) {
  			return;
  		}
  		var nodeName = target.nodeName.toLowerCase();
  		if (nodeName == 'input') {
  			target.disabled = false;
  			inst.trigger.filter('button').
  				each(function() { this.disabled = false; }).end().
  				filter('img').css({opacity: '1.0', cursor: ''});
  		}
  		else if (nodeName == 'div' || nodeName == 'span') {
  			var inline = $target.children('.' + this._inlineClass);
  			inline.children().removeClass('ui-state-disabled');
  			inline.find("select.ui-datepicker-month, select.ui-datepicker-year").
  				removeAttr("disabled");
  		}
  		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) {
  		var $target = $(target);
  		var inst = $.data(target, PROP_NAME);
  		if (!$target.hasClass(this.markerClassName)) {
  			return;
  		}
  		var nodeName = target.nodeName.toLowerCase();
  		if (nodeName == 'input') {
  			target.disabled = true;
  			inst.trigger.filter('button').
  				each(function() { this.disabled = true; }).end().
  				filter('img').css({opacity: '0.5', cursor: 'default'});
  		}
  		else if (nodeName == 'div' || nodeName == 'span') {
  			var inline = $target.children('.' + this._inlineClass);
  			inline.children().addClass('ui-state-disabled');
  			inline.find("select.ui-datepicker-month, select.ui-datepicker-year").
  				attr("disabled", "disabled");
  		}
  		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;
  	},
  
  	/* Retrieve the instance data for the target control.
  	   @param  target  element - the target input field or division or span
  	   @return  object - the associated instance data
  	   @throws  error if a jQuery problem getting data */
  	_getInst: function(target) {
  		try {
  			return $.data(target, PROP_NAME);
  		}
  		catch (err) {
  			throw 'Missing instance data for this datepicker';
  		}
  	},
  
  	/* Update or retrieve 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 retrieve,
  	                   when retrieving also 'all' for all instance settings or
  	                   'defaults' for all global defaults
  	   @param  value   any - the new value for the setting
  	                   (omit if above is an object or to retrieve a value) */
  	_optionDatepicker: function(target, name, value) {
  		var inst = this._getInst(target);
  		if (arguments.length == 2 && typeof name == 'string') {
  			return (name == 'defaults' ? $.extend({}, $.datepicker._defaults) :
  				(inst ? (name == 'all' ? $.extend({}, inst.settings) :
  				this._get(inst, name)) : null));
  		}
  		var settings = name || {};
  		if (typeof name == 'string') {
  			settings = {};
  			settings[name] = value;
  		}
  		if (inst) {
  			if (this._curInst == inst) {
  				this._hideDatepicker();
  			}
  			var date = this._getDateDatepicker(target, true);
  			var minDate = this._getMinMaxDate(inst, 'min');
  			var maxDate = this._getMinMaxDate(inst, 'max');
  			extendRemove(inst.settings, settings);
  			// reformat the old minDate/maxDate values if dateFormat changes and a new minDate/maxDate isn't provided
  			if (minDate !== null && settings['dateFormat'] !== undefined && settings['minDate'] === undefined)
  				inst.settings.minDate = this._formatDate(inst, minDate);
  			if (maxDate !== null && settings['dateFormat'] !== undefined && settings['maxDate'] === undefined)
  				inst.settings.maxDate = this._formatDate(inst, maxDate);
  			this._attachments($(target), inst);
  			this._autoSize(inst);
  			this._setDate(inst, date);
  			this._updateAlternate(inst);
  			this._updateDatepicker(inst);
  		}
  	},
  
  	// change method deprecated
  	_changeDatepicker: function(target, name, value) {
  		this._optionDatepicker(target, name, value);
  	},
  
  	/* Redraw the date picker attached to an input field or division.
  	   @param  target  element - the target input field or division or span */
  	_refreshDatepicker: function(target) {
  		var inst = this._getInst(target);
  		if (inst) {
  			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 */
  	_setDateDatepicker: function(target, date) {
  		var inst = this._getInst(target);
  		if (inst) {
  			this._setDate(inst, date);
  			this._updateDatepicker(inst);
  			this._updateAlternate(inst);
  		}
  	},
  
  	/* Get the date(s) for the first entry in a jQuery selection.
  	   @param  target     element - the target input field or division or span
  	   @param  noDefault  boolean - true if no default date is to be used
  	   @return Date - the current date */
  	_getDateDatepicker: function(target, noDefault) {
  		var inst = this._getInst(target);
  		if (inst && !inst.inline)
  			this._setDateFromField(inst, noDefault);
  		return (inst ? this._getDate(inst) : null);
  	},
  
  	/* Handle keystrokes. */
  	_doKeyDown: function(event) {
  		var inst = $.datepicker._getInst(event.target);
  		var handled = true;
  		var isRTL = inst.dpDiv.is('.ui-datepicker-rtl');
  		inst._keyEvent = true;
  		if ($.datepicker._datepickerShowing)
  			switch (event.keyCode) {
  				case 9: $.datepicker._hideDatepicker();
  						handled = false;
  						break; // hide on tab out
  				case 13: var sel = $('td.' + $.datepicker._dayOverClass + ':not(.' + 
  									$.datepicker._currentClass + ')', inst.dpDiv);
  						if (sel[0])
  							$.datepicker._selectDay(event.target, inst.selectedMonth, inst.selectedYear, sel[0]);
  						else
  							$.datepicker._hideDatepicker();
  						return false; // don't submit the form
  						break; // select the value on enter
  				case 27: $.datepicker._hideDatepicker();
  						break; // hide on escape
  				case 33: $.datepicker._adjustDate(event.target, (event.ctrlKey ?
  							-$.datepicker._get(inst, 'stepBigMonths') :
  							-$.datepicker._get(inst, 'stepMonths')), 'M');
  						break; // previous month/year on page up/+ ctrl
  				case 34: $.datepicker._adjustDate(event.target, (event.ctrlKey ?
  							+$.datepicker._get(inst, 'stepBigMonths') :
  							+$.datepicker._get(inst, 'stepMonths')), 'M');
  						break; // next month/year on page down/+ ctrl
  				case 35: if (event.ctrlKey || event.metaKey) $.datepicker._clearDate(event.target);
  						handled = event.ctrlKey || event.metaKey;
  						break; // clear on ctrl or command +end
  				case 36: if (event.ctrlKey || event.metaKey) $.datepicker._gotoToday(event.target);
  						handled = event.ctrlKey || event.metaKey;
  						break; // current on ctrl or command +home
  				case 37: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, (isRTL ? +1 : -1), 'D');
  						handled = event.ctrlKey || event.metaKey;
  						// -1 day on ctrl or command +left
  						if (event.originalEvent.altKey) $.datepicker._adjustDate(event.target, (event.ctrlKey ?
  									-$.datepicker._get(inst, 'stepBigMonths') :
  									-$.datepicker._get(inst, 'stepMonths')), 'M');
  						// next month/year on alt +left on Mac
  						break;
  				case 38: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, -7, 'D');
  						handled = event.ctrlKey || event.metaKey;
  						break; // -1 week on ctrl or command +up
  				case 39: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, (isRTL ? -1 : +1), 'D');
  						handled = event.ctrlKey || event.metaKey;
  						// +1 day on ctrl or command +right
  						if (event.originalEvent.altKey) $.datepicker._adjustDate(event.target, (event.ctrlKey ?
  									+$.datepicker._get(inst, 'stepBigMonths') :
  									+$.datepicker._get(inst, 'stepMonths')), 'M');
  						// next month/year on alt +right
  						break;
  				case 40: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, +7, 'D');
  						handled = event.ctrlKey || event.metaKey;
  						break; // +1 week on ctrl or command +down
  				default: handled = false;
  			}
  		else if (event.keyCode == 36 && event.ctrlKey) // display the date picker on ctrl+home
  			$.datepicker._showDatepicker(this);
  		else {
  			handled = false;
  		}
  		if (handled) {
  			event.preventDefault();
  			event.stopPropagation();
  		}
  	},
  
  	/* Filter entered characters - based on date format. */
  	_doKeyPress: function(event) {
  		var inst = $.datepicker._getInst(event.target);
  		if ($.datepicker._get(inst, 'constrainInput')) {
  			var chars = $.datepicker._possibleChars($.datepicker._get(inst, 'dateFormat'));
  			var chr = String.fromCharCode(event.charCode == undefined ? event.keyCode : event.charCode);
  			return event.ctrlKey || event.metaKey || (chr < ' ' || !chars || chars.indexOf(chr) > -1);
  		}
  	},
  
  	/* Synchronise manual entry and field/alternate field. */
  	_doKeyUp: function(event) {
  		var inst = $.datepicker._getInst(event.target);
  		if (inst.input.val() != inst.lastVal) {
  			try {
  				var date = $.datepicker.parseDate($.datepicker._get(inst, 'dateFormat'),
  					(inst.input ? inst.input.val() : null),
  					$.datepicker._getFormatConfig(inst));
  				if (date) { // only if valid
  					$.datepicker._setDateFromField(inst);
  					$.datepicker._updateAlternate(inst);
  					$.datepicker._updateDatepicker(inst);
  				}
  			}
  			catch (event) {
  				$.datepicker.log(event);
  			}
  		}
  		return true;
  	},
  
  	/* 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 = $.datepicker._getInst(input);
  		if ($.datepicker._curInst && $.datepicker._curInst != inst) {
  			$.datepicker._curInst.dpDiv.stop(true, true);
  		}
  		var beforeShow = $.datepicker._get(inst, 'beforeShow');
  		extendRemove(inst.settings, (beforeShow ? beforeShow.apply(input, [input, inst]) : {}));
  		inst.lastVal = 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;
  		//to avoid flashes on Firefox
  		inst.dpDiv.empty();
  		// determine sizing offscreen
  		inst.dpDiv.css({position: 'absolute', display: 'block', top: '-1000px'});
  		$.datepicker._updateDatepicker(inst);
  		// fix width for dynamic number of date pickers
  		// 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');
  			var duration = $.datepicker._get(inst, 'duration');
  			var postProcess = function() {
  				var cover = inst.dpDiv.find('iframe.ui-datepicker-cover'); // IE6- only
  				if( !! cover.length ){
  					var borders = $.datepicker._getBorders(inst.dpDiv);
  					cover.css({left: -borders[0], top: -borders[1],
  						width: inst.dpDiv.outerWidth(), height: inst.dpDiv.outerHeight()});
  				}
  			};
  			inst.dpDiv.zIndex($(input).zIndex()+1);
  			$.datepicker._datepickerShowing = true;
  			if ($.effects && $.effects[showAnim])
  				inst.dpDiv.show(showAnim, $.datepicker._get(inst, 'showOptions'), duration, postProcess);
  			else
  				inst.dpDiv[showAnim || 'show']((showAnim ? duration : null), postProcess);
  			if (!showAnim || !duration)
  				postProcess();
  			if (inst.input.is(':visible') && !inst.input.is(':disabled'))
  				inst.input.focus();
  			$.datepicker._curInst = inst;
  		}
  	},
  
  	/* Generate the date picker content. */
  	_updateDatepicker: function(inst) {
  		var self = this;
  		var borders = $.datepicker._getBorders(inst.dpDiv);
  		instActive = inst; // for delegate hover events
  		inst.dpDiv.empty().append(this._generateHTML(inst));
  		var cover = inst.dpDiv.find('iframe.ui-datepicker-cover'); // IE6- only
  		if( !!cover.length ){ //avoid call to outerXXXX() when not in IE6
  			cover.css({left: -borders[0], top: -borders[1], width: inst.dpDiv.outerWidth(), height: inst.dpDiv.outerHeight()})
  		}
  		inst.dpDiv.find('.' + this._dayOverClass + ' a').mouseover();
  		var numMonths = this._getNumberOfMonths(inst);
  		var cols = numMonths[1];
  		var width = 17;
  		inst.dpDiv.removeClass('ui-datepicker-multi-2 ui-datepicker-multi-3 ui-datepicker-multi-4').width('');
  		if (cols > 1)
  			inst.dpDiv.addClass('ui-datepicker-multi-' + cols).css('width', (width * cols) + 'em');
  		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 == $.datepicker._curInst && $.datepicker._datepickerShowing && inst.input &&
  				// #6694 - don't focus the input if it's already focused
  				// this breaks the change event in IE
  				inst.input.is(':visible') && !inst.input.is(':disabled') && inst.input[0] != document.activeElement)
  			inst.input.focus();
  		// deffered render of the years select (to avoid flashes on Firefox) 
  		if( inst.yearshtml ){
  			var origyearshtml = inst.yearshtml;
  			setTimeout(function(){
  				//assure that inst.yearshtml didn't change.
  				if( origyearshtml === inst.yearshtml && inst.yearshtml ){
  					inst.dpDiv.find('select.ui-datepicker-year:first').replaceWith(inst.yearshtml);
  				}
  				origyearshtml = inst.yearshtml = null;
  			}, 0);
  		}
  	},
  
  	/* Retrieve the size of left and top borders for an element.
  	   @param  elem  (jQuery object) the element of interest
  	   @return  (number[2]) the left and top borders */
  	_getBorders: function(elem) {
  		var convert = function(value) {
  			return {thin: 1, medium: 2, thick: 3}[value] || value;
  		};
  		return [parseFloat(convert(elem.css('border-left-width'))),
  			parseFloat(convert(elem.css('border-top-width')))];
  	},
  
  	/* Check positioning to remain on screen. */
  	_checkOffset: function(inst, offset, isFixed) {
  		var dpWidth = inst.dpDiv.outerWidth();
  		var dpHeight = inst.dpDiv.outerHeight();
  		var inputWidth = inst.input ? inst.input.outerWidth() : 0;
  		var inputHeight = inst.input ? inst.input.outerHeight() : 0;
  		var viewWidth = document.documentElement.clientWidth + $(document).scrollLeft();
  		var viewHeight = document.documentElement.clientHeight + $(document).scrollTop();
  
  		offset.left -= (this._get(inst, 'isRTL') ? (dpWidth - inputWidth) : 0);
  		offset.left -= (isFixed && offset.left == inst.input.offset().left) ? $(document).scrollLeft() : 0;
  		offset.top -= (isFixed && offset.top == (inst.input.offset().top + inputHeight)) ? $(document).scrollTop() : 0;
  
  		// now check if datepicker is showing outside window viewport - move to a better place if so.
  		offset.left -= Math.min(offset.left, (offset.left + dpWidth > viewWidth && viewWidth > dpWidth) ?
  			Math.abs(offset.left + dpWidth - viewWidth) : 0);
  		offset.top -= Math.min(offset.top, (offset.top + dpHeight > viewHeight && viewHeight > dpHeight) ?
  			Math.abs(dpHeight + inputHeight) : 0);
  
  		return offset;
  	},
  
  	/* Find an object's position on the screen. */
  	_findPos: function(obj) {
  		var inst = this._getInst(obj);
  		var isRTL = this._get(inst, 'isRTL');
          while (obj && (obj.type == 'hidden' || obj.nodeType != 1 || $.expr.filters.hidden(obj))) {
              obj = obj[isRTL ? 'previousSibling' : '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 */
  	_hideDatepicker: function(input) {
  		var inst = this._curInst;
  		if (!inst || (input && inst != $.data(input, PROP_NAME)))
  			return;
  		if (this._datepickerShowing) {
  			var showAnim = this._get(inst, 'showAnim');
  			var duration = this._get(inst, 'duration');
  			var postProcess = function() {
  				$.datepicker._tidyDialog(inst);
  				this._curInst = null;
  			};
  			if ($.effects && $.effects[showAnim])
  				inst.dpDiv.hide(showAnim, $.datepicker._get(inst, 'showOptions'), duration, postProcess);
  			else
  				inst.dpDiv[(showAnim == 'slideDown' ? 'slideUp' :
  					(showAnim == 'fadeIn' ? 'fadeOut' : 'hide'))]((showAnim ? duration : null), postProcess);
  			if (!showAnim)
  				postProcess();
  			var onClose = this._get(inst, 'onClose');
  			if (onClose)
  				onClose.apply((inst.input ? inst.input[0] : null),
  					[(inst.input ? inst.input.val() : ''), inst]);  // trigger custom callback
  			this._datepickerShowing = false;
  			this._lastInput = null;
  			if (this._inDialog) {
  				this._dialogInput.css({ position: 'absolute', left: '0', top: '-100px' });
  				if ($.blockUI) {
  					$.unblockUI();
  					$('body').append(this.dpDiv);
  				}
  			}
  			this._inDialog = false;
  		}
  	},
  
  	/* Tidy up after a dialog display. */
  	_tidyDialog: function(inst) {
  		inst.dpDiv.removeClass(this._dialogClass).unbind('.ui-datepicker-calendar');
  	},
  
  	/* Close date picker if clicked elsewhere. */
  	_checkExternalClick: function(event) {
  		if (!$.datepicker._curInst)
  			return;
  		var $target = $(event.target);
  		if ($target[0].id != $.datepicker._mainDivId &&
  				$target.parents('#' + $.datepicker._mainDivId).length == 0 &&
  				!$target.hasClass($.datepicker.markerClassName) &&
  				!$target.hasClass($.datepicker._triggerClass) &&
  				$.datepicker._datepickerShowing && !($.datepicker._inDialog && $.blockUI))
  			$.datepicker._hideDatepicker();
  	},
  
  	/* Adjust one of the date sub-fields. */
  	_adjustDate: function(id, offset, period) {
  		var target = $(id);
  		var inst = this._getInst(target[0]);
  		if (this._isDisabledDatepicker(target[0])) {
  			return;
  		}
  		this._adjustInstDate(inst, offset +
  			(period == 'M' ? this._get(inst, 'showCurrentAtPos') : 0), // undo positioning
  			period);
  		this._updateDatepicker(inst);
  	},
  
  	/* Action for current link. */
  	_gotoToday: function(id) {
  		var target = $(id);
  		var inst = this._getInst(target[0]);
  		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._notifyChange(inst);
  		this._adjustDate(target);
  	},
  
  	/* Action for selecting a new month/year. */
  	_selectMonthYear: function(id, select, period) {
  		var target = $(id);
  		var inst = this._getInst(target[0]);
  		inst._selectingMonthYear = false;
  		inst['selected' + (period == 'M' ? 'Month' : 'Year')] =
  		inst['draw' + (period == 'M' ? 'Month' : 'Year')] =
  			parseInt(select.options[select.selectedIndex].value,10);
  		this._notifyChange(inst);
  		this._adjustDate(target);
  	},
  
  	/* Restore input focus after not changing month/year. */
  	_clickMonthYear: function(id) {
  		var target = $(id);
  		var inst = this._getInst(target[0]);
  		if (inst.input && inst._selectingMonthYear) {
  			setTimeout(function() {
  				inst.input.focus();
  			}, 0);
  		}
  		inst._selectingMonthYear = !inst._selectingMonthYear;
  	},
  
  	/* Action for selecting a day. */
  	_selectDay: function(id, month, year, td) {
  		var target = $(id);
  		if ($(td).hasClass(this._unselectableClass) || this._isDisabledDatepicker(target[0])) {
  			return;
  		}
  		var inst = this._getInst(target[0]);
  		inst.selectedDay = inst.currentDay = $('a', td).html();
  		inst.selectedMonth = inst.currentMonth = month;
  		inst.selectedYear = inst.currentYear = year;
  		this._selectDate(id, this._formatDate(inst,
  			inst.currentDay, inst.currentMonth, inst.currentYear));
  	},
  
  	/* Erase the input field and hide the date picker. */
  	_clearDate: function(id) {
  		var target = $(id);
  		var inst = this._getInst(target[0]);
  		this._selectDate(target, '');
  	},
  
  	/* Update the input field with the selected date. */
  	_selectDate: function(id, dateStr) {
  		var target = $(id);
  		var inst = this._getInst(target[0]);
  		dateStr = (dateStr != null ? dateStr : this._formatDate(inst));
  		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 {
  			this._hideDatepicker();
  			this._lastInput = inst.input[0];
  			if (typeof(inst.input[0]) != 'object')
  				inst.input.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') || this._get(inst, 'dateFormat');
  			var date = this._getDate(inst);
  			var dateStr = 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.getTime());
  		// Find Thursday of this week starting on Monday
  		checkDate.setDate(checkDate.getDate() + 4 - (checkDate.getDay() || 7));
  		var time = checkDate.getTime();
  		checkDate.setMonth(0); // Compare with Jan 1
  		checkDate.setDate(1);
  		return Math.floor(Math.round((time - checkDate) / 86400000) / 7) + 1;
  	},
  
  	/* 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;
  		shortYearCutoff = (typeof shortYearCutoff != 'string' ? shortYearCutoff :
  				new Date().getFullYear() % 100 + parseInt(shortYearCutoff, 10));
  		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 doy = -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) {
  			var isDoubled = lookAhead(match);
  			var size = (match == '@' ? 14 : (match == '!' ? 20 :
  				(match == 'y' && isDoubled ? 4 : (match == 'o' ? 3 : 2))));
  			var digits = new RegExp('^\\d{1,' + size + '}');
  			var num = value.substring(iValue).match(digits);
  			if (!num)
  				throw 'Missing number at position ' + iValue;
  			iValue += num[0].length;
  			return parseInt(num[0], 10);
  		};
  		// Extract a name from the string value and convert to an index
  		var getName = function(match, shortNames, longNames) {
  			var names = $.map(lookAhead(match) ? longNames : shortNames, function (v, k) {
  				return [ [k, v] ];
  			}).sort(function (a, b) {
  				return -(a[1].length - b[1].length);
  			});
  			var index = -1;
  			$.each(names, function (i, pair) {
  				var name = pair[1];
  				if (value.substr(iValue, name.length).toLowerCase() == name.toLowerCase()) {
  					index = pair[0];
  					iValue += name.length;
  					return false;
  				}
  			});
  			if (index != -1)
  				return index + 1;
  			else
  				throw 'Unknown name at position ' + iValue;
  		};
  		// 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 'o':
  						doy = getNumber('o');
  						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 '!':
  						var date = new Date((getNumber('!') - this._ticksTo1970) / 10000);
  						year = date.getFullYear();
  						month = date.getMonth() + 1;
  						day = date.getDate();
  						break;
  					case "'":
  						if (lookAhead("'"))
  							checkLiteral();
  						else
  							literal = true;
  						break;
  					default:
  						checkLiteral();
  				}
  		}
  		if (year == -1)
  			year = new Date().getFullYear();
  		else if (year < 100)
  			year += new Date().getFullYear() - new Date().getFullYear() % 100 +
  				(year <= shortYearCutoff ? 0 : -100);
  		if (doy > -1) {
  			month = 1;
  			day = doy;
  			do {
  				var dim = this._getDaysInMonth(year, month - 1);
  				if (day <= dim)
  					break;
  				month++;
  				day -= dim;
  			} while (true);
  		}
  		var date = this._daylightSavingAdjust(new Date(year, month - 1, day));
  		if (date.getFullYear() != year || date.getMonth() + 1 != month || date.getDate() != day)
  			throw 'Invalid date'; // E.g. 31/02/00
  		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
  	TICKS: '!',
  	TIMESTAMP: '@',
  	W3C: 'yy-mm-dd', // ISO 8601
  
  	_ticksTo1970: (((1970 - 1) * 365 + Math.floor(1970 / 4) - Math.floor(1970 / 100) +
  		Math.floor(1970 / 400)) * 24 * 60 * 60 * 10000000),
  
  	/* 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)
  	   o  - day of year (no leading zeros)
  	   oo - day of year (three 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)
  	   ! - Windows ticks (100ns since 01/01/0001)
  	   '...' - 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, len) {
  			var num = '' + value;
  			if (lookAhead(match))
  				while (num.length < len)
  					num = '0' + num;
  			return num;
  		};
  		// 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(), 2);
  							break;
  						case 'D':
  							output += formatName('D', date.getDay(), dayNamesShort, dayNames);
  							break;
  						case 'o':
  							output += formatNumber('o',
  								(date.getTime() - new Date(date.getFullYear(), 0, 0).getTime()) / 86400000, 3);
  							break;
  						case 'm':
  							output += formatNumber('m', date.getMonth() + 1, 2);
  							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 '!':
  							output += date.getTime() * 10000 + this._ticksTo1970;
  							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;
  		// 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;
  		};
  		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, noDefault) {
  		if (inst.input.val() == inst.lastVal) {
  			return;
  		}
  		var dateFormat = this._get(inst, 'dateFormat');
  		var dates = inst.lastVal = inst.input ? inst.input.val() : null;
  		var date, defaultDate;
  		date = defaultDate = this._getDefaultDate(inst);
  		var settings = this._getFormatConfig(inst);
  		try {
  			date = this.parseDate(dateFormat, dates, settings) || defaultDate;
  		} catch (event) {
  			this.log(event);
  			dates = (noDefault ? '' : dates);
  		}
  		inst.selectedDay = date.getDate();
  		inst.drawMonth = inst.selectedMonth = date.getMonth();
  		inst.drawYear = inst.selectedYear = date.getFullYear();
  		inst.currentDay = (dates ? date.getDate() : 0);
  		inst.currentMonth = (dates ? date.getMonth() : 0);
  		inst.currentYear = (dates ? date.getFullYear() : 0);
  		this._adjustInstDate(inst);
  	},
  
  	/* Retrieve the default date shown on opening. */
  	_getDefaultDate: function(inst) {
  		return this._restrictMinMax(inst,
  			this._determineDate(inst, this._get(inst, 'defaultDate'), new Date()));
  	},
  
  	/* A date may be specified as an exact value or a relative one. */
  	_determineDate: function(inst, date, defaultDate) {
  		var offsetNumeric = function(offset) {
  			var date = new Date();
  			date.setDate(date.getDate() + offset);
  			return date;
  		};
  		var offsetString = function(offset) {
  			try {
  				return $.datepicker.parseDate($.datepicker._get(inst, 'dateFormat'),
  					offset, $.datepicker._getFormatConfig(inst));
  			}
  			catch (e) {
  				// Ignore
  			}
  			var date = (offset.toLowerCase().match(/^c/) ?
  				$.datepicker._getDate(inst) : null) || 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 += parseInt(matches[1],10); break;
  					case 'w' : case 'W' :
  						day += parseInt(matches[1],10) * 7; break;
  					case 'm' : case 'M' :
  						month += parseInt(matches[1],10);
  						day = Math.min(day, $.datepicker._getDaysInMonth(year, month));
  						break;
  					case 'y': case 'Y' :
  						year += parseInt(matches[1],10);
  						day = Math.min(day, $.datepicker._getDaysInMonth(year, month));
  						break;
  				}
  				matches = pattern.exec(offset);
  			}
  			return new Date(year, month, day);
  		};
  		var newDate = (date == null || date === '' ? defaultDate : (typeof date == 'string' ? offsetString(date) :
  			(typeof date == 'number' ? (isNaN(date) ? defaultDate : offsetNumeric(date)) : new Date(date.getTime()))));
  		newDate = (newDate && newDate.toString() == 'Invalid Date' ? defaultDate : newDate);
  		if (newDate) {
  			newDate.setHours(0);
  			newDate.setMinutes(0);
  			newDate.setSeconds(0);
  			newDate.setMilliseconds(0);
  		}
  		return this._daylightSavingAdjust(newDate);
  	},
  
  	/* Handle switch to/from daylight saving.
  	   Hours may be non-zero on daylight saving cut-over:
  	   > 12 when midnight changeover, but then cannot generate
  	   midnight datetime, so jump to 1AM, otherwise reset.
  	   @param  date  (Date) the date to check
  	   @return  (Date) the corrected date */
  	_daylightSavingAdjust: function(date) {
  		if (!date) return null;
  		date.setHours(date.getHours() > 12 ? date.getHours() + 2 : 0);
  		return date;
  	},
  
  	/* Set the date(s) directly. */
  	_setDate: function(inst, date, noChange) {
  		var clear = !date;
  		var origMonth = inst.selectedMonth;
  		var origYear = inst.selectedYear;
  		var newDate = this._restrictMinMax(inst, this._determineDate(inst, date, new Date()));
  		inst.selectedDay = inst.currentDay = newDate.getDate();
  		inst.drawMonth = inst.selectedMonth = inst.currentMonth = newDate.getMonth();
  		inst.drawYear = inst.selectedYear = inst.currentYear = newDate.getFullYear();
  		if ((origMonth != inst.selectedMonth || origYear != inst.selectedYear) && !noChange)
  			this._notifyChange(inst);
  		this._adjustInstDate(inst);
  		if (inst.input) {
  			inst.input.val(clear ? '' : this._formatDate(inst));
  		}
  	},
  
  	/* Retrieve the date(s) directly. */
  	_getDate: function(inst) {
  		var startDate = (!inst.currentYear || (inst.input && inst.input.val() == '') ? null :
  			this._daylightSavingAdjust(new Date(
  			inst.currentYear, inst.currentMonth, inst.currentDay)));
  			return startDate;
  	},
  
  	/* Generate the HTML for the current state of the date picker. */
  	_generateHTML: function(inst) {
  		var today = new Date();
  		today = this._daylightSavingAdjust(
  			new Date(today.getFullYear(), today.getMonth(), today.getDate())); // clear time
  		var isRTL = this._get(inst, 'isRTL');
  		var showButtonPanel = this._get(inst, 'showButtonPanel');
  		var hideIfNoPrevNext = this._get(inst, 'hideIfNoPrevNext');
  		var navigationAsDateFormat = this._get(inst, 'navigationAsDateFormat');
  		var numMonths = this._getNumberOfMonths(inst);
  		var showCurrentAtPos = this._get(inst, 'showCurrentAtPos');
  		var stepMonths = this._get(inst, 'stepMonths');
  		var isMultiMonth = (numMonths[0] != 1 || numMonths[1] != 1);
  		var currentDate = this._daylightSavingAdjust((!inst.currentDay ? new Date(9999, 9, 9) :
  			new Date(inst.currentYear, inst.currentMonth, inst.currentDay)));
  		var minDate = this._getMinMaxDate(inst, 'min');
  		var maxDate = this._getMinMaxDate(inst, 'max');
  		var drawMonth = inst.drawMonth - showCurrentAtPos;
  		var drawYear = inst.drawYear;
  		if (drawMonth < 0) {
  			drawMonth += 12;
  			drawYear--;
  		}
  		if (maxDate) {
  			var maxDraw = this._daylightSavingAdjust(new Date(maxDate.getFullYear(),
  				maxDate.getMonth() - (numMonths[0] * numMonths[1]) + 1, maxDate.getDate()));
  			maxDraw = (minDate && maxDraw < minDate ? minDate : maxDraw);
  			while (this._daylightSavingAdjust(new Date(drawYear, drawMonth, 1)) > maxDraw) {
  				drawMonth--;
  				if (drawMonth < 0) {
  					drawMonth = 11;
  					drawYear--;
  				}
  			}
  		}
  		inst.drawMonth = drawMonth;
  		inst.drawYear = drawYear;
  		var prevText = this._get(inst, 'prevText');
  		prevText = (!navigationAsDateFormat ? prevText : this.formatDate(prevText,
  			this._daylightSavingAdjust(new Date(drawYear, drawMonth - stepMonths, 1)),
  			this._getFormatConfig(inst)));
  		var prev = (this._canAdjustMonth(inst, -1, drawYear, drawMonth) ?
  			'<a class="ui-datepicker-prev ui-corner-all" onclick="DP_jQuery_' + dpuuid +
  			'.datepicker._adjustDate(\'#' + inst.id + '\', -' + stepMonths + ', \'M\');"' +
  			' title="' + prevText + '"><span class="ui-icon ui-icon-circle-triangle-' + ( isRTL ? 'e' : 'w') + '">' + prevText + '</span></a>' :
  			(hideIfNoPrevNext ? '' : '<a class="ui-datepicker-prev ui-corner-all ui-state-disabled" title="'+ prevText +'"><span class="ui-icon ui-icon-circle-triangle-' + ( isRTL ? 'e' : 'w') + '">' + prevText + '</span></a>'));
  		var nextText = this._get(inst, 'nextText');
  		nextText = (!navigationAsDateFormat ? nextText : this.formatDate(nextText,
  			this._daylightSavingAdjust(new Date(drawYear, drawMonth + stepMonths, 1)),
  			this._getFormatConfig(inst)));
  		var next = (this._canAdjustMonth(inst, +1, drawYear, drawMonth) ?
  			'<a class="ui-datepicker-next ui-corner-all" onclick="DP_jQuery_' + dpuuid +
  			'.datepicker._adjustDate(\'#' + inst.id + '\', +' + stepMonths + ', \'M\');"' +
  			' title="' + nextText + '"><span class="ui-icon ui-icon-circle-triangle-' + ( isRTL ? 'w' : 'e') + '">' + nextText + '</span></a>' :
  			(hideIfNoPrevNext ? '' : '<a class="ui-datepicker-next ui-corner-all ui-state-disabled" title="'+ nextText + '"><span class="ui-icon ui-icon-circle-triangle-' + ( isRTL ? 'w' : 'e') + '">' + nextText + '</span></a>'));
  		var currentText = this._get(inst, 'currentText');
  		var gotoDate = (this._get(inst, 'gotoCurrent') && inst.currentDay ? currentDate : today);
  		currentText = (!navigationAsDateFormat ? currentText :
  			this.formatDate(currentText, gotoDate, this._getFormatConfig(inst)));
  		var controls = (!inst.inline ? '<button type="button" class="ui-datepicker-close ui-state-default ui-priority-primary ui-corner-all" onclick="DP_jQuery_' + dpuuid +
  			'.datepicker._hideDatepicker();">' + this._get(inst, 'closeText') + '</button>' : '');
  		var buttonPanel = (showButtonPanel) ? '<div class="ui-datepicker-buttonpane ui-widget-content">' + (isRTL ? controls : '') +
  			(this._isInRange(inst, gotoDate) ? '<button type="button" class="ui-datepicker-current ui-state-default ui-priority-secondary ui-corner-all" onclick="DP_jQuery_' + dpuuid +
  			'.datepicker._gotoToday(\'#' + inst.id + '\');"' +
  			'>' + currentText + '</button>' : '') + (isRTL ? '' : controls) + '</div>' : '';
  		var firstDay = parseInt(this._get(inst, 'firstDay'),10);
  		firstDay = (isNaN(firstDay) ? 0 : firstDay);
  		var showWeek = this._get(inst, 'showWeek');
  		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 monthNamesShort = this._get(inst, 'monthNamesShort');
  		var beforeShowDay = this._get(inst, 'beforeShowDay');
  		var showOtherMonths = this._get(inst, 'showOtherMonths');
  		var selectOtherMonths = this._get(inst, 'selectOtherMonths');
  		var calculateWeek = this._get(inst, 'calculateWeek') || this.iso8601Week;
  		var defaultDate = this._getDefaultDate(inst);
  		var html = '';
  		for (var row = 0; row < numMonths[0]; row++) {
  			var group = '';
  			for (var col = 0; col < numMonths[1]; col++) {
  				var selectedDate = this._daylightSavingAdjust(new Date(drawYear, drawMonth, inst.selectedDay));
  				var cornerClass = ' ui-corner-all';
  				var calender = '';
  				if (isMultiMonth) {
  					calender += '<div class="ui-datepicker-group';
  					if (numMonths[1] > 1)
  						switch (col) {
  							case 0: calender += ' ui-datepicker-group-first';
  								cornerClass = ' ui-corner-' + (isRTL ? 'right' : 'left'); break;
  							case numMonths[1]-1: calender += ' ui-datepicker-group-last';
  								cornerClass = ' ui-corner-' + (isRTL ? 'left' : 'right'); break;
  							default: calender += ' ui-datepicker-group-middle'; cornerClass = ''; break;
  						}
  					calender += '">';
  				}
  				calender += '<div class="ui-datepicker-header ui-widget-header ui-helper-clearfix' + cornerClass + '">' +
  					(/all|left/.test(cornerClass) && row == 0 ? (isRTL ? next : prev) : '') +
  					(/all|right/.test(cornerClass) && row == 0 ? (isRTL ? prev : next) : '') +
  					this._generateMonthYearHeader(inst, drawMonth, drawYear, minDate, maxDate,
  					row > 0 || col > 0, monthNames, monthNamesShort) + // draw month headers
  					'</div><table class="ui-datepicker-calendar"><thead>' +
  					'<tr>';
  				var thead = (showWeek ? '<th class="ui-datepicker-week-col">' + this._get(inst, 'weekHeader') + '</th>' : '');
  				for (var dow = 0; dow < 7; dow++) { // days of the week
  					var day = (dow + firstDay) % 7;
  					thead += '<th' + ((dow + firstDay + 6) % 7 >= 5 ? ' class="ui-datepicker-week-end"' : '') + '>' +
  						'<span title="' + dayNames[day] + '">' + dayNamesMin[day] + '</span></th>';
  				}
  				calender += thead + '</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 numRows = (isMultiMonth ? 6 : Math.ceil((leadDays + daysInMonth) / 7)); // calculate the number of rows to generate
  				var printDate = this._daylightSavingAdjust(new Date(drawYear, drawMonth, 1 - leadDays));
  				for (var dRow = 0; dRow < numRows; dRow++) { // create date picker rows
  					calender += '<tr>';
  					var tbody = (!showWeek ? '' : '<td class="ui-datepicker-week-col">' +
  						this._get(inst, '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 && !selectOtherMonths) || !daySettings[0] ||
  							(minDate && printDate < minDate) || (maxDate && printDate > maxDate);
  						tbody += '<td class="' +
  							((dow + firstDay + 6) % 7 >= 5 ? ' ui-datepicker-week-end' : '') + // highlight weekends
  							(otherMonth ? ' ui-datepicker-other-month' : '') + // highlight days from other months
  							((printDate.getTime() == selectedDate.getTime() && drawMonth == inst.selectedMonth && inst._keyEvent) || // user pressed key
  							(defaultDate.getTime() == printDate.getTime() && defaultDate.getTime() == selectedDate.getTime()) ?
  							// or defaultDate is current printedDate and defaultDate is selectedDate
  							' ' + this._dayOverClass : '') + // highlight selected day
  							(unselectable ? ' ' + this._unselectableClass + ' ui-state-disabled': '') +  // highlight unselectable days
  							(otherMonth && !showOtherMonths ? '' : ' ' + daySettings[1] + // highlight custom dates
  							(printDate.getTime() == currentDate.getTime() ? ' ' + 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 ? '' : ' onclick="DP_jQuery_' + dpuuid + '.datepicker._selectDay(\'#' +
  							inst.id + '\',' + printDate.getMonth() + ',' + printDate.getFullYear() + ', this);return false;"') + '>' + // actions
  							(otherMonth && !showOtherMonths ? '&#xa0;' : // display for other months
  							(unselectable ? '<span class="ui-state-default">' + printDate.getDate() + '</span>' : '<a class="ui-state-default' +
  							(printDate.getTime() == today.getTime() ? ' ui-state-highlight' : '') +
  							(printDate.getTime() == currentDate.getTime() ? ' ui-state-active' : '') + // highlight selected day
  							(otherMonth ? ' ui-priority-secondary' : '') + // distinguish dates from other months
  							'" href="#">' + printDate.getDate() + '</a>')) + '</td>'; // display selectable date
  						printDate.setDate(printDate.getDate() + 1);
  						printDate = this._daylightSavingAdjust(printDate);
  					}
  					calender += tbody + '</tr>';
  				}
  				drawMonth++;
  				if (drawMonth > 11) {
  					drawMonth = 0;
  					drawYear++;
  				}
  				calender += '</tbody></table>' + (isMultiMonth ? '</div>' + 
  							((numMonths[0] > 0 && col == numMonths[1]-1) ? '<div class="ui-datepicker-row-break"></div>' : '') : '');
  				group += calender;
  			}
  			html += group;
  		}
  		html += buttonPanel + ($.browser.msie && parseInt($.browser.version,10) < 7 && !inst.inline ?
  			'<iframe src="javascript:false;" class="ui-datepicker-cover" frameborder="0"></iframe>' : '');
  		inst._keyEvent = false;
  		return html;
  	},
  
  	/* Generate the month and year header. */
  	_generateMonthYearHeader: function(inst, drawMonth, drawYear, minDate, maxDate,
  			secondary, monthNames, monthNamesShort) {
  		var changeMonth = this._get(inst, 'changeMonth');
  		var changeYear = this._get(inst, 'changeYear');
  		var showMonthAfterYear = this._get(inst, 'showMonthAfterYear');
  		var html = '<div class="ui-datepicker-title">';
  		var monthHtml = '';
  		// month selection
  		if (secondary || !changeMonth)
  			monthHtml += '<span class="ui-datepicker-month">' + monthNames[drawMonth] + '</span>';
  		else {
  			var inMinYear = (minDate && minDate.getFullYear() == drawYear);
  			var inMaxYear = (maxDate && maxDate.getFullYear() == drawYear);
  			monthHtml += '<select class="ui-datepicker-month" ' +
  				'onchange="DP_jQuery_' + dpuuid + '.datepicker._selectMonthYear(\'#' + inst.id + '\', this, \'M\');" ' +
  				'onclick="DP_jQuery_' + dpuuid + '.datepicker._clickMonthYear(\'#' + inst.id + '\');"' +
  			 	'>';
  			for (var month = 0; month < 12; month++) {
  				if ((!inMinYear || month >= minDate.getMonth()) &&
  						(!inMaxYear || month <= maxDate.getMonth()))
  					monthHtml += '<option value="' + month + '"' +
  						(month == drawMonth ? ' selected="selected"' : '') +
  						'>' + monthNamesShort[month] + '</option>';
  			}
  			monthHtml += '</select>';
  		}
  		if (!showMonthAfterYear)
  			html += monthHtml + (secondary || !(changeMonth && changeYear) ? '&#xa0;' : '');
  		// year selection
  		if ( !inst.yearshtml ) {
  			inst.yearshtml = '';
  			if (secondary || !changeYear)
  				html += '<span class="ui-datepicker-year">' + drawYear + '</span>';
  			else {
  				// determine range of years to display
  				var years = this._get(inst, 'yearRange').split(':');
  				var thisYear = new Date().getFullYear();
  				var determineYear = function(value) {
  					var year = (value.match(/c[+-].*/) ? drawYear + parseInt(value.substring(1), 10) :
  						(value.match(/[+-].*/) ? thisYear + parseInt(value, 10) :
  						parseInt(value, 10)));
  					return (isNaN(year) ? thisYear : year);
  				};
  				var year = determineYear(years[0]);
  				var endYear = Math.max(year, determineYear(years[1] || ''));
  				year = (minDate ? Math.max(year, minDate.getFullYear()) : year);
  				endYear = (maxDate ? Math.min(endYear, maxDate.getFullYear()) : endYear);
  				inst.yearshtml += '<select class="ui-datepicker-year" ' +
  					'onchange="DP_jQuery_' + dpuuid + '.datepicker._selectMonthYear(\'#' + inst.id + '\', this, \'Y\');" ' +
  					'onclick="DP_jQuery_' + dpuuid + '.datepicker._clickMonthYear(\'#' + inst.id + '\');"' +
  					'>';
  				for (; year <= endYear; year++) {
  					inst.yearshtml += '<option value="' + year + '"' +
  						(year == drawYear ? ' selected="selected"' : '') +
  						'>' + year + '</option>';
  				}
  				inst.yearshtml += '</select>';
  				
  				html += inst.yearshtml;
  				inst.yearshtml = null;
  			}
  		}
  		html += this._get(inst, 'yearSuffix');
  		if (showMonthAfterYear)
  			html += (secondary || !(changeMonth && changeYear) ? '&#xa0;' : '') + monthHtml;
  		html += '</div>'; // Close datepicker_header
  		return html;
  	},
  
  	/* 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 = this._restrictMinMax(inst,
  			this._daylightSavingAdjust(new Date(year, month, day)));
  		inst.selectedDay = date.getDate();
  		inst.drawMonth = inst.selectedMonth = date.getMonth();
  		inst.drawYear = inst.selectedYear = date.getFullYear();
  		if (period == 'M' || period == 'Y')
  			this._notifyChange(inst);
  	},
  
  	/* Ensure a date is within any min/max bounds. */
  	_restrictMinMax: function(inst, date) {
  		var minDate = this._getMinMaxDate(inst, 'min');
  		var maxDate = this._getMinMaxDate(inst, 'max');
  		var newDate = (minDate && date < minDate ? minDate : date);
  		newDate = (maxDate && newDate > maxDate ? maxDate : newDate);
  		return newDate;
  	},
  
  	/* Notify change of month/year. */
  	_notifyChange: function(inst) {
  		var onChange = this._get(inst, 'onChangeMonthYear');
  		if (onChange)
  			onChange.apply((inst.input ? inst.input[0] : null),
  				[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. */
  	_getMinMaxDate: function(inst, minMax) {
  		return this._determineDate(inst, this._get(inst, minMax + 'Date'), null);
  	},
  
  	/* Find the number of days in a given month. */
  	_getDaysInMonth: function(year, month) {
  		return 32 - this._daylightSavingAdjust(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 = this._daylightSavingAdjust(new Date(curYear,
  			curMonth + (offset < 0 ? offset : numMonths[0] * 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) {
  		var minDate = this._getMinMaxDate(inst, 'min');
  		var maxDate = this._getMinMaxDate(inst, 'max');
  		return ((!minDate || date.getTime() >= minDate.getTime()) &&
  			(!maxDate || date.getTime() <= maxDate.getTime()));
  	},
  
  	/* 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 :
  			this._daylightSavingAdjust(new Date(year, month, day))) :
  			this._daylightSavingAdjust(new Date(inst.currentYear, inst.currentMonth, inst.currentDay)));
  		return this.formatDate(this._get(inst, 'dateFormat'), date, this._getFormatConfig(inst));
  	}
  });
  
  /*
   * Bind hover events for datepicker elements.
   * Done via delegate so the binding only occurs once in the lifetime of the parent div.
   * Global instActive, set by _updateDatepicker allows the handlers to find their way back to the active picker.
   */ 
  function bindHover(dpDiv) {
  	var selector = 'button, .ui-datepicker-prev, .ui-datepicker-next, .ui-datepicker-calendar td a';
  	return dpDiv.delegate(selector, 'mouseout', function() {
  			$(this).removeClass('ui-state-hover');
  			if (this.className.indexOf('ui-datepicker-prev') != -1) $(this).removeClass('ui-datepicker-prev-hover');
  			if (this.className.indexOf('ui-datepicker-next') != -1) $(this).removeClass('ui-datepicker-next-hover');
  		})
  		.delegate(selector, 'mouseover', function(){
  			if (!$.datepicker._isDisabledDatepicker( instActive.inline ? dpDiv.parent()[0] : instActive.input[0])) {
  				$(this).parents('.ui-datepicker-calendar').find('a').removeClass('ui-state-hover');
  				$(this).addClass('ui-state-hover');
  				if (this.className.indexOf('ui-datepicker-prev') != -1) $(this).addClass('ui-datepicker-prev-hover');
  				if (this.className.indexOf('ui-datepicker-next') != -1) $(this).addClass('ui-datepicker-next-hover');
  			}
  		});
  }
  
  /* 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){
  	
  	/* Verify an empty collection wasn't passed - Fixes #6976 */
  	if ( !this.length ) {
  		return this;
  	}
  	
  	/* Initialise the date picker. */
  	if (!$.datepicker.initialized) {
  		$(document).mousedown($.datepicker._checkExternalClick).
  			find('body').append($.datepicker.dpDiv);
  		$.datepicker.initialized = true;
  	}
  
  	var otherArgs = Array.prototype.slice.call(arguments, 1);
  	if (typeof options == 'string' && (options == 'isDisabled' || options == 'getDate' || options == 'widget'))
  		return $.datepicker['_' + options + 'Datepicker'].
  			apply($.datepicker, [this[0]].concat(otherArgs));
  	if (options == 'option' && arguments.length == 2 && typeof arguments[1] == 'string')
  		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
  $.datepicker.initialized = false;
  $.datepicker.uuid = new Date().getTime();
  $.datepicker.version = "1.8.13";
  
  // Workaround for #4055
  // Add another global to avoid noConflict issues with inline event handlers
  window['DP_jQuery_' + dpuuid] = $;
  
  })(jQuery);
  