

jQuery.fn.extend({
	everyTime: function(interval, label, fn, times, belay) {
		return this.each(function() {
			jQuery.timer.add(this, interval, label, fn, times, belay);
		});
	},
	oneTime: function(interval, label, fn) {
		return this.each(function() {
			jQuery.timer.add(this, interval, label, fn, 1);
		});
	},
	stopTime: function(label, fn) {
		return this.each(function() {
			jQuery.timer.remove(this, label, fn);
		});
	}
});

jQuery.extend({
	timer: {
		guid: 1,
		global: {},
		regex: /^([0-9]+)\s*(.*s)?$/,
		powers: {
			// Yeah this is major overkill...
			'ms': 1,
			'cs': 10,
			'ds': 100,
			's': 1000,
			'das': 10000,
			'hs': 100000,
			'ks': 1000000
		},
		timeParse: function(value) {
			if (value == undefined || value == null)
				return null;
			var result = this.regex.exec(jQuery.trim(value.toString()));
			if (result[2]) {
				var num = parseInt(result[1], 10);
				var mult = this.powers[result[2]] || 1;
				return num * mult;
			} else {
				return value;
			}
		},
		add: function(element, interval, label, fn, times, belay) {
			var counter = 0;
			
			if (jQuery.isFunction(label)) {
				if (!times) 
					times = fn;
				fn = label;
				label = interval;
			}
			
			interval = jQuery.timer.timeParse(interval);

			if (typeof interval != 'number' || isNaN(interval) || interval <= 0)
				return;

			if (times && times.constructor != Number) {
				belay = !!times;
				times = 0;
			}
			
			times = times || 0;
			belay = belay || false;
			
			if (!element.$timers) 
				element.$timers = {};
			
			if (!element.$timers[label])
				element.$timers[label] = {};
			
			fn.$timerID = fn.$timerID || this.guid++;
			
			var handler = function() {
				if (belay && this.inProgress) 
					return;
				this.inProgress = true;
				if ((++counter > times && times !== 0) || fn.call(element, counter) === false)
					jQuery.timer.remove(element, label, fn);
				this.inProgress = false;
			};
			
			handler.$timerID = fn.$timerID;
			
			if (!element.$timers[label][fn.$timerID]) 
				element.$timers[label][fn.$timerID] = window.setInterval(handler,interval);
			
			if ( !this.global[label] )
				this.global[label] = [];
			this.global[label].push( element );
			
		},
		remove: function(element, label, fn) {
			var timers = element.$timers, ret;
			
			if ( timers ) {
				
				if (!label) {
					for ( label in timers )
						this.remove(element, label, fn);
				} else if ( timers[label] ) {
					if ( fn ) {
						if ( fn.$timerID ) {
							window.clearInterval(timers[label][fn.$timerID]);
							delete timers[label][fn.$timerID];
						}
					} else {
						for ( var fn in timers[label] ) {
							window.clearInterval(timers[label][fn]);
							delete timers[label][fn];
						}
					}
					
					for ( ret in timers[label] ) break;
					if ( !ret ) {
						ret = null;
						delete timers[label];
					}
				}
				
				for ( ret in timers ) break;
				if ( !ret ) 
					element.$timers = null;
			}
		}
	}
});

if (jQuery.browser.msie)
	jQuery(window).one("unload", function() {
		var global = jQuery.timer.global;
		for ( var label in global ) {
			var els = global[label], i = els.length;
			while ( --i )
				jQuery.timer.remove(els[i], label);
		}
	});




/*
 * jQuery UI Datepicker 1.8.8
 *
 * Copyright 2010, 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: "1.8.8" } });

var PROP_NAME = 'datepicker';
var dpuuid = new Date().getTime();

/* 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: 'Prev', // Display text for previous month link
		nextText: 'Next', // 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 = $('<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
			$('<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');
		}
		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');
		}
		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' ? $.extend({}, inst.settings) :
				this._get(inst, name)) : null));
		}
		var settings = name || {};
		if (typeof name == 'string') {
			settings = {};
			settings[name] = value;
		}
		if (inst) {
			if (this._curInst == inst) {
				this._hideDatepicker();
			}
			var date = this._getDateDatepicker(target, true);
			extendRemove(inst.settings, settings);
			this._attachments($(target), inst);
			this._autoSize(inst);
			this._setDateDatepicker(target, date);
			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() {
				$.datepicker._datepickerShowing = true;
				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);
			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);
		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('button, .ui-datepicker-prev, .ui-datepicker-next, .ui-datepicker-calendar td a')
				.bind('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');
				})
				.bind('mouseover', function(){
					if (!self._isDisabledDatepicker( inst.inline ? inst.dpDiv.parent()[0] : inst.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');
					}
				})
			.end()
			.find('.' + this._dayOverClass + ' a')
				.trigger('mouseover')
			.end();
		var numMonths = this._getNumberOfMonths(inst);
		var cols = numMonths[1];
		var width = 17;
		if (cols > 1)
			inst.dpDiv.addClass('ui-datepicker-multi-' + cols).css('width', (width * cols) + 'em');
		else
			inst.dpDiv.removeClass('ui-datepicker-multi-2 ui-datepicker-multi-3 ui-datepicker-multi-4').width('');
		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 &&
				inst.input.is(':visible') && !inst.input.is(':disabled'))
			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.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)) {
            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;
		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 = (lookAhead(match) ? longNames : shortNames);
			for (var i = 0; i < names.length; i++) {
				if (value.substr(iValue, names[i].length).toLowerCase() == names[i].toLowerCase()) {
					iValue += names[i].length;
					return i + 1;
				}
			}
			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/*
		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
		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>';
			//when showing there is no need for later update
			if( ! $.browser.mozilla ){
				html += inst.yearshtml;
				inst.yearshtml = null;
			} else {
				// will be replaced later with inst.yearshtml
				html += '<select class="ui-datepicker-year"><option value="' + drawYear + '" selected="selected">' + drawYear + '</option></select>';
			}
		}
		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 - 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));
	}
});

/* 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){

	/* 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 = "1.8.8";

// Workaround for #4055
// Add another global to avoid noConflict issues with inline event handlers
window['DP_jQuery_' + dpuuid] = $;

})(jQuery);


/**
 * jQuery Validation Plugin 1.9.0
 *
 * http://bassistance.de/jquery-plugins/jquery-plugin-validation/
 * http://docs.jquery.com/Plugins/Validation
 *
 * Copyright (c) 2006 - 2011 Jörn Zaefferer
 *
 * Dual licensed under the MIT and GPL licenses:
 *   http://www.opensource.org/licenses/mit-license.php
 *   http://www.gnu.org/licenses/gpl.html
 */
(function(c){c.extend(c.fn,{validate:function(a){if(this.length){var b=c.data(this[0],"validator");if(b)return b;this.attr("novalidate","novalidate");b=new c.validator(a,this[0]);c.data(this[0],"validator",b);if(b.settings.onsubmit){a=this.find("input, button");a.filter(".cancel").click(function(){b.cancelSubmit=true});b.settings.submitHandler&&a.filter(":submit").click(function(){b.submitButton=this});this.submit(function(d){function e(){if(b.settings.submitHandler){if(b.submitButton)var f=c("<input type='hidden'/>").attr("name",
b.submitButton.name).val(b.submitButton.value).appendTo(b.currentForm);b.settings.submitHandler.call(b,b.currentForm);b.submitButton&&f.remove();return false}return true}b.settings.debug&&d.preventDefault();if(b.cancelSubmit){b.cancelSubmit=false;return e()}if(b.form()){if(b.pendingRequest){b.formSubmitted=true;return false}return e()}else{b.focusInvalid();return false}})}return b}else a&&a.debug&&window.console&&console.warn("nothing selected, can't validate, returning nothing")},valid:function(){if(c(this[0]).is("form"))return this.validate().form();
else{var a=true,b=c(this[0].form).validate();this.each(function(){a&=b.element(this)});return a}},removeAttrs:function(a){var b={},d=this;c.each(a.split(/\s/),function(e,f){b[f]=d.attr(f);d.removeAttr(f)});return b},rules:function(a,b){var d=this[0];if(a){var e=c.data(d.form,"validator").settings,f=e.rules,g=c.validator.staticRules(d);switch(a){case "add":c.extend(g,c.validator.normalizeRule(b));f[d.name]=g;if(b.messages)e.messages[d.name]=c.extend(e.messages[d.name],b.messages);break;case "remove":if(!b){delete f[d.name];
return g}var h={};c.each(b.split(/\s/),function(j,i){h[i]=g[i];delete g[i]});return h}}d=c.validator.normalizeRules(c.extend({},c.validator.metadataRules(d),c.validator.classRules(d),c.validator.attributeRules(d),c.validator.staticRules(d)),d);if(d.required){e=d.required;delete d.required;d=c.extend({required:e},d)}return d}});c.extend(c.expr[":"],{blank:function(a){return!c.trim(""+a.value)},filled:function(a){return!!c.trim(""+a.value)},unchecked:function(a){return!a.checked}});c.validator=function(a,
b){this.settings=c.extend(true,{},c.validator.defaults,a);this.currentForm=b;this.init()};c.validator.format=function(a,b){if(arguments.length==1)return function(){var d=c.makeArray(arguments);d.unshift(a);return c.validator.format.apply(this,d)};if(arguments.length>2&&b.constructor!=Array)b=c.makeArray(arguments).slice(1);if(b.constructor!=Array)b=[b];c.each(b,function(d,e){a=a.replace(RegExp("\\{"+d+"\\}","g"),e)});return a};c.extend(c.validator,{defaults:{messages:{},groups:{},rules:{},errorClass:"error",
validClass:"valid",errorElement:"label",focusInvalid:true,errorContainer:c([]),errorLabelContainer:c([]),onsubmit:true,ignore:":hidden",ignoreTitle:false,onfocusin:function(a){this.lastActive=a;if(this.settings.focusCleanup&&!this.blockFocusCleanup){this.settings.unhighlight&&this.settings.unhighlight.call(this,a,this.settings.errorClass,this.settings.validClass);this.addWrapper(this.errorsFor(a)).hide()}},onfocusout:function(a){if(!this.checkable(a)&&(a.name in this.submitted||!this.optional(a)))this.element(a)},
onkeyup:function(a){if(a.name in this.submitted||a==this.lastElement)this.element(a)},onclick:function(a){if(a.name in this.submitted)this.element(a);else a.parentNode.name in this.submitted&&this.element(a.parentNode)},highlight:function(a,b,d){a.type==="radio"?this.findByName(a.name).addClass(b).removeClass(d):c(a).addClass(b).removeClass(d)},unhighlight:function(a,b,d){a.type==="radio"?this.findByName(a.name).removeClass(b).addClass(d):c(a).removeClass(b).addClass(d)}},setDefaults:function(a){c.extend(c.validator.defaults,
a)},messages:{required:"This field is required.",remote:"Please fix this field.",email:"Please enter a valid email address.",url:"Please enter a valid URL.",date:"Please enter a valid date.",dateISO:"Please enter a valid date (ISO).",number:"Please enter a valid number.",digits:"Please enter only digits.",creditcard:"Please enter a valid credit card number.",equalTo:"Please enter the same value again.",accept:"Please enter a value with a valid extension.",maxlength:c.validator.format("Please enter no more than {0} characters."),
minlength:c.validator.format("Please enter at least {0} characters."),rangelength:c.validator.format("Please enter a value between {0} and {1} characters long."),range:c.validator.format("Please enter a value between {0} and {1}."),max:c.validator.format("Please enter a value less than or equal to {0}."),min:c.validator.format("Please enter a value greater than or equal to {0}.")},autoCreateRanges:false,prototype:{init:function(){function a(e){var f=c.data(this[0].form,"validator"),g="on"+e.type.replace(/^validate/,
"");f.settings[g]&&f.settings[g].call(f,this[0],e)}this.labelContainer=c(this.settings.errorLabelContainer);this.errorContext=this.labelContainer.length&&this.labelContainer||c(this.currentForm);this.containers=c(this.settings.errorContainer).add(this.settings.errorLabelContainer);this.submitted={};this.valueCache={};this.pendingRequest=0;this.pending={};this.invalid={};this.reset();var b=this.groups={};c.each(this.settings.groups,function(e,f){c.each(f.split(/\s/),function(g,h){b[h]=e})});var d=
this.settings.rules;c.each(d,function(e,f){d[e]=c.validator.normalizeRule(f)});c(this.currentForm).validateDelegate("[type='text'], [type='password'], [type='file'], select, textarea, [type='number'], [type='search'] ,[type='tel'], [type='url'], [type='email'], [type='datetime'], [type='date'], [type='month'], [type='week'], [type='time'], [type='datetime-local'], [type='range'], [type='color'] ","focusin focusout keyup",a).validateDelegate("[type='radio'], [type='checkbox'], select, option","click",
a);this.settings.invalidHandler&&c(this.currentForm).bind("invalid-form.validate",this.settings.invalidHandler)},form:function(){this.checkForm();c.extend(this.submitted,this.errorMap);this.invalid=c.extend({},this.errorMap);this.valid()||c(this.currentForm).triggerHandler("invalid-form",[this]);this.showErrors();return this.valid()},checkForm:function(){this.prepareForm();for(var a=0,b=this.currentElements=this.elements();b[a];a++)this.check(b[a]);return this.valid()},element:function(a){this.lastElement=
a=this.validationTargetFor(this.clean(a));this.prepareElement(a);this.currentElements=c(a);var b=this.check(a);if(b)delete this.invalid[a.name];else this.invalid[a.name]=true;if(!this.numberOfInvalids())this.toHide=this.toHide.add(this.containers);this.showErrors();return b},showErrors:function(a){if(a){c.extend(this.errorMap,a);this.errorList=[];for(var b in a)this.errorList.push({message:a[b],element:this.findByName(b)[0]});this.successList=c.grep(this.successList,function(d){return!(d.name in a)})}this.settings.showErrors?
this.settings.showErrors.call(this,this.errorMap,this.errorList):this.defaultShowErrors()},resetForm:function(){c.fn.resetForm&&c(this.currentForm).resetForm();this.submitted={};this.lastElement=null;this.prepareForm();this.hideErrors();this.elements().removeClass(this.settings.errorClass)},numberOfInvalids:function(){return this.objectLength(this.invalid)},objectLength:function(a){var b=0,d;for(d in a)b++;return b},hideErrors:function(){this.addWrapper(this.toHide).hide()},valid:function(){return this.size()==
0},size:function(){return this.errorList.length},focusInvalid:function(){if(this.settings.focusInvalid)try{c(this.findLastActive()||this.errorList.length&&this.errorList[0].element||[]).filter(":visible").focus().trigger("focusin")}catch(a){}},findLastActive:function(){var a=this.lastActive;return a&&c.grep(this.errorList,function(b){return b.element.name==a.name}).length==1&&a},elements:function(){var a=this,b={};return c(this.currentForm).find("input, select, textarea").not(":submit, :reset, :image, [disabled]").not(this.settings.ignore).filter(function(){!this.name&&
a.settings.debug&&window.console&&console.error("%o has no name assigned",this);if(this.name in b||!a.objectLength(c(this).rules()))return false;return b[this.name]=true})},clean:function(a){return c(a)[0]},errors:function(){return c(this.settings.errorElement+"."+this.settings.errorClass,this.errorContext)},reset:function(){this.successList=[];this.errorList=[];this.errorMap={};this.toShow=c([]);this.toHide=c([]);this.currentElements=c([])},prepareForm:function(){this.reset();this.toHide=this.errors().add(this.containers)},
prepareElement:function(a){this.reset();this.toHide=this.errorsFor(a)},check:function(a){a=this.validationTargetFor(this.clean(a));var b=c(a).rules(),d=false,e;for(e in b){var f={method:e,parameters:b[e]};try{var g=c.validator.methods[e].call(this,a.value.replace(/\r/g,""),a,f.parameters);if(g=="dependency-mismatch")d=true;else{d=false;if(g=="pending"){this.toHide=this.toHide.not(this.errorsFor(a));return}if(!g){this.formatAndAdd(a,f);return false}}}catch(h){this.settings.debug&&window.console&&console.log("exception occured when checking element "+
a.id+", check the '"+f.method+"' method",h);throw h;}}if(!d){this.objectLength(b)&&this.successList.push(a);return true}},customMetaMessage:function(a,b){if(c.metadata){var d=this.settings.meta?c(a).metadata()[this.settings.meta]:c(a).metadata();return d&&d.messages&&d.messages[b]}},customMessage:function(a,b){var d=this.settings.messages[a];return d&&(d.constructor==String?d:d[b])},findDefined:function(){for(var a=0;a<arguments.length;a++)if(arguments[a]!==undefined)return arguments[a]},defaultMessage:function(a,
b){return this.findDefined(this.customMessage(a.name,b),this.customMetaMessage(a,b),!this.settings.ignoreTitle&&a.title||undefined,c.validator.messages[b],"<strong>Warning: No message defined for "+a.name+"</strong>")},formatAndAdd:function(a,b){var d=this.defaultMessage(a,b.method),e=/\$?\{(\d+)\}/g;if(typeof d=="function")d=d.call(this,b.parameters,a);else if(e.test(d))d=jQuery.format(d.replace(e,"{$1}"),b.parameters);this.errorList.push({message:d,element:a});this.errorMap[a.name]=d;this.submitted[a.name]=
d},addWrapper:function(a){if(this.settings.wrapper)a=a.add(a.parent(this.settings.wrapper));return a},defaultShowErrors:function(){for(var a=0;this.errorList[a];a++){var b=this.errorList[a];this.settings.highlight&&this.settings.highlight.call(this,b.element,this.settings.errorClass,this.settings.validClass);this.showLabel(b.element,b.message)}if(this.errorList.length)this.toShow=this.toShow.add(this.containers);if(this.settings.success)for(a=0;this.successList[a];a++)this.showLabel(this.successList[a]);
if(this.settings.unhighlight){a=0;for(b=this.validElements();b[a];a++)this.settings.unhighlight.call(this,b[a],this.settings.errorClass,this.settings.validClass)}this.toHide=this.toHide.not(this.toShow);this.hideErrors();this.addWrapper(this.toShow).show()},validElements:function(){return this.currentElements.not(this.invalidElements())},invalidElements:function(){return c(this.errorList).map(function(){return this.element})},showLabel:function(a,b){var d=this.errorsFor(a);if(d.length){d.removeClass(this.settings.validClass).addClass(this.settings.errorClass);
d.attr("generated")&&d.html(b)}else{d=c("<"+this.settings.errorElement+"/>").attr({"for":this.idOrName(a),generated:true}).addClass(this.settings.errorClass).html(b||"");if(this.settings.wrapper)d=d.hide().show().wrap("<"+this.settings.wrapper+"/>").parent();this.labelContainer.append(d).length||(this.settings.errorPlacement?this.settings.errorPlacement(d,c(a)):d.insertAfter(a))}if(!b&&this.settings.success){d.text("");typeof this.settings.success=="string"?d.addClass(this.settings.success):this.settings.success(d)}this.toShow=
this.toShow.add(d)},errorsFor:function(a){var b=this.idOrName(a);return this.errors().filter(function(){return c(this).attr("for")==b})},idOrName:function(a){return this.groups[a.name]||(this.checkable(a)?a.name:a.id||a.name)},validationTargetFor:function(a){if(this.checkable(a))a=this.findByName(a.name).not(this.settings.ignore)[0];return a},checkable:function(a){return/radio|checkbox/i.test(a.type)},findByName:function(a){var b=this.currentForm;return c(document.getElementsByName(a)).map(function(d,
e){return e.form==b&&e.name==a&&e||null})},getLength:function(a,b){switch(b.nodeName.toLowerCase()){case "select":return c("option:selected",b).length;case "input":if(this.checkable(b))return this.findByName(b.name).filter(":checked").length}return a.length},depend:function(a,b){return this.dependTypes[typeof a]?this.dependTypes[typeof a](a,b):true},dependTypes:{"boolean":function(a){return a},string:function(a,b){return!!c(a,b.form).length},"function":function(a,b){return a(b)}},optional:function(a){return!c.validator.methods.required.call(this,
c.trim(a.value),a)&&"dependency-mismatch"},startRequest:function(a){if(!this.pending[a.name]){this.pendingRequest++;this.pending[a.name]=true}},stopRequest:function(a,b){this.pendingRequest--;if(this.pendingRequest<0)this.pendingRequest=0;delete this.pending[a.name];if(b&&this.pendingRequest==0&&this.formSubmitted&&this.form()){c(this.currentForm).submit();this.formSubmitted=false}else if(!b&&this.pendingRequest==0&&this.formSubmitted){c(this.currentForm).triggerHandler("invalid-form",[this]);this.formSubmitted=
false}},previousValue:function(a){return c.data(a,"previousValue")||c.data(a,"previousValue",{old:null,valid:true,message:this.defaultMessage(a,"remote")})}},classRuleSettings:{required:{required:true},email:{email:true},url:{url:true},date:{date:true},dateISO:{dateISO:true},dateDE:{dateDE:true},number:{number:true},numberDE:{numberDE:true},digits:{digits:true},creditcard:{creditcard:true}},addClassRules:function(a,b){a.constructor==String?this.classRuleSettings[a]=b:c.extend(this.classRuleSettings,
a)},classRules:function(a){var b={};(a=c(a).attr("class"))&&c.each(a.split(" "),function(){this in c.validator.classRuleSettings&&c.extend(b,c.validator.classRuleSettings[this])});return b},attributeRules:function(a){var b={};a=c(a);for(var d in c.validator.methods){var e;if(e=d==="required"&&typeof c.fn.prop==="function"?a.prop(d):a.attr(d))b[d]=e;else if(a[0].getAttribute("type")===d)b[d]=true}b.maxlength&&/-1|2147483647|524288/.test(b.maxlength)&&delete b.maxlength;return b},metadataRules:function(a){if(!c.metadata)return{};
var b=c.data(a.form,"validator").settings.meta;return b?c(a).metadata()[b]:c(a).metadata()},staticRules:function(a){var b={},d=c.data(a.form,"validator");if(d.settings.rules)b=c.validator.normalizeRule(d.settings.rules[a.name])||{};return b},normalizeRules:function(a,b){c.each(a,function(d,e){if(e===false)delete a[d];else if(e.param||e.depends){var f=true;switch(typeof e.depends){case "string":f=!!c(e.depends,b.form).length;break;case "function":f=e.depends.call(b,b)}if(f)a[d]=e.param!==undefined?
e.param:true;else delete a[d]}});c.each(a,function(d,e){a[d]=c.isFunction(e)?e(b):e});c.each(["minlength","maxlength","min","max"],function(){if(a[this])a[this]=Number(a[this])});c.each(["rangelength","range"],function(){if(a[this])a[this]=[Number(a[this][0]),Number(a[this][1])]});if(c.validator.autoCreateRanges){if(a.min&&a.max){a.range=[a.min,a.max];delete a.min;delete a.max}if(a.minlength&&a.maxlength){a.rangelength=[a.minlength,a.maxlength];delete a.minlength;delete a.maxlength}}a.messages&&delete a.messages;
return a},normalizeRule:function(a){if(typeof a=="string"){var b={};c.each(a.split(/\s/),function(){b[this]=true});a=b}return a},addMethod:function(a,b,d){c.validator.methods[a]=b;c.validator.messages[a]=d!=undefined?d:c.validator.messages[a];b.length<3&&c.validator.addClassRules(a,c.validator.normalizeRule(a))},methods:{required:function(a,b,d){if(!this.depend(d,b))return"dependency-mismatch";switch(b.nodeName.toLowerCase()){case "select":return(a=c(b).val())&&a.length>0;case "input":if(this.checkable(b))return this.getLength(a,
b)>0;default:return c.trim(a).length>0}},remote:function(a,b,d){if(this.optional(b))return"dependency-mismatch";var e=this.previousValue(b);this.settings.messages[b.name]||(this.settings.messages[b.name]={});e.originalMessage=this.settings.messages[b.name].remote;this.settings.messages[b.name].remote=e.message;d=typeof d=="string"&&{url:d}||d;if(this.pending[b.name])return"pending";if(e.old===a)return e.valid;e.old=a;var f=this;this.startRequest(b);var g={};g[b.name]=a;c.ajax(c.extend(true,{url:d,
mode:"abort",port:"validate"+b.name,dataType:"json",data:g,success:function(h){f.settings.messages[b.name].remote=e.originalMessage;var j=h===true;if(j){var i=f.formSubmitted;f.prepareElement(b);f.formSubmitted=i;f.successList.push(b);f.showErrors()}else{i={};h=h||f.defaultMessage(b,"remote");i[b.name]=e.message=c.isFunction(h)?h(a):h;f.showErrors(i)}e.valid=j;f.stopRequest(b,j)}},d));return"pending"},minlength:function(a,b,d){return this.optional(b)||this.getLength(c.trim(a),b)>=d},maxlength:function(a,
b,d){return this.optional(b)||this.getLength(c.trim(a),b)<=d},rangelength:function(a,b,d){a=this.getLength(c.trim(a),b);return this.optional(b)||a>=d[0]&&a<=d[1]},min:function(a,b,d){return this.optional(b)||a>=d},max:function(a,b,d){return this.optional(b)||a<=d},range:function(a,b,d){return this.optional(b)||a>=d[0]&&a<=d[1]},email:function(a,b){return this.optional(b)||/^((([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))$/i.test(a)},
url:function(a,b){return this.optional(b)||/^(https?|ftp):\/\/(((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:)*@)?(((\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5]))|((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?)(:\d*)?)(\/((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)+(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*)?)?(\?((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|[\uE000-\uF8FF]|\/|\?)*)?(\#((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|\/|\?)*)?$/i.test(a)},
date:function(a,b){return this.optional(b)||!/Invalid|NaN/.test(new Date(a))},dateISO:function(a,b){return this.optional(b)||/^\d{4}[\/-]\d{1,2}[\/-]\d{1,2}$/.test(a)},number:function(a,b){return this.optional(b)||/^-?(?:\d+|\d{1,3}(?:,\d{3})+)(?:\.\d+)?$/.test(a)},digits:function(a,b){return this.optional(b)||/^\d+$/.test(a)},creditcard:function(a,b){if(this.optional(b))return"dependency-mismatch";if(/[^0-9 -]+/.test(a))return false;var d=0,e=0,f=false;a=a.replace(/\D/g,"");for(var g=a.length-1;g>=
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(function(c){var a={};if(c.ajaxPrefilter)c.ajaxPrefilter(function(d,e,f){e=d.port;if(d.mode=="abort"){a[e]&&a[e].abort();a[e]=f}});else{var b=c.ajax;c.ajax=function(d){var e=("port"in d?d:c.ajaxSettings).port;if(("mode"in d?d:c.ajaxSettings).mode=="abort"){a[e]&&a[e].abort();return a[e]=b.apply(this,arguments)}return b.apply(this,arguments)}}})(jQuery);
(function(c){!jQuery.event.special.focusin&&!jQuery.event.special.focusout&&document.addEventListener&&c.each({focus:"focusin",blur:"focusout"},function(a,b){function d(e){e=c.event.fix(e);e.type=b;return c.event.handle.call(this,e)}c.event.special[b]={setup:function(){this.addEventListener(a,d,true)},teardown:function(){this.removeEventListener(a,d,true)},handler:function(e){arguments[0]=c.event.fix(e);arguments[0].type=b;return c.event.handle.apply(this,arguments)}}});c.extend(c.fn,{validateDelegate:function(a,
b,d){return this.bind(b,function(e){var f=c(e.target);if(f.is(a))return d.apply(f,arguments)})}})})(jQuery);


(function($) {

  $.fn.tweet = function(o){
    var s = $.extend({
      username: null,                           // [string or array] required unless using the 'query' option; one or more twitter screen names
      list: null,                               // [string]   optional name of list belonging to username
      favorites: false,                         // [boolean]  display the user's favorites instead of his tweets
      query: null,                              // [string]   optional search query
      avatar_size: null,                        // [integer]  height and width of avatar if displayed (48px max)
      count: 3,                                 // [integer]  how many tweets to display?
      fetch: null,                              // [integer]  how many tweets to fetch via the API (set this higher than 'count' if using the 'filter' option)
      retweets: true,                           // [boolean]  whether to fetch (official) retweets (not supported in all display modes)
      intro_text: null,                         // [string]   do you want text BEFORE your your tweets?
      outro_text: null,                         // [string]   do you want text AFTER your tweets?
      join_text:  null,                         // [string]   optional text in between date and tweet, try setting to "auto"
      auto_join_text_default: "i said,",        // [string]   auto text for non verb: "i said" bullocks
      auto_join_text_ed: "i",                   // [string]   auto text for past tense: "i" surfed
      auto_join_text_ing: "i am",               // [string]   auto tense for present tense: "i was" surfing
      auto_join_text_reply: "i replied to",     // [string]   auto tense for replies: "i replied to" @someone "with"
      auto_join_text_url: "i was looking at",   // [string]   auto tense for urls: "i was looking at" http:...
      loading_text: null,                       // [string]   optional loading text, displayed while tweets load
      refresh_interval: null ,                  // [integer]  optional number of seconds after which to reload tweets
      twitter_url: "twitter.com",               // [string]   custom twitter url, if any (apigee, etc.)
      twitter_api_url: "api.twitter.com",       // [string]   custom twitter api url, if any (apigee, etc.)
      twitter_search_url: "search.twitter.com", // [string]   custom twitter search url, if any (apigee, etc.)
      template: "{avatar}{time}{join}{text}",   // [string or function] template used to construct each tweet <li> - see code for available vars
      comparator: function(tweet1, tweet2) {    // [function] comparator used to sort tweets (see Array.sort)
        return tweet2["tweet_time"] - tweet1["tweet_time"];
      },
      filter: function(tweet) {                 // [function] whether or not to include a particular tweet (be sure to also set 'fetch')
        return true;
      }
    }, o);

    $.fn.extend({
      linkUrl: function() {
        var returning = [];
        // See http://daringfireball.net/2010/07/improved_regex_for_matching_urls
        var regexp = /\b((?:[a-z][\w-]+:(?:\/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:'".,<>?«»“”‘’]))/gi;
        this.each(function() {
          returning.push(this.replace(regexp,
                                      function(match) {
                                        var url = (/^[a-z]+:/i).test(match) ? match : "http://"+match;
                                        return "<a href=\""+url+"\">"+match+"</a>";
                                      }));
        });
        return $(returning);
      },
      linkUser: function() {
        var returning = [];
        var regexp = /[\@]+(\w+)/gi;
        this.each(function() {
          returning.push(this.replace(regexp,"@<a href=\"http://"+s.twitter_url+"/$1\">$1</a>"));
        });
        return $(returning);
      },
      linkHash: function() {
        var returning = [];
        // Support various latin1 (\u00**) and arabic (\u06**) alphanumeric chars
        var regexp = /(?:^| )[\#]+([\w\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u00ff\u0600-\u06ff]+)/gi;
        var usercond = (s.username && s.username.length == 1) ? '&from='+s.username.join("%2BOR%2B") : '';
        this.each(function() {
          returning.push(this.replace(regexp, ' <a href="http://'+s.twitter_search_url+'/search?q=&tag=$1&lang=all'+usercond+'">#$1</a>'));
        });
        return $(returning);
      },
      capAwesome: function() {
        var returning = [];
        this.each(function() {
          returning.push(this.replace(/\b(awesome)\b/gi, '<span class="awesome">$1</span>'));
        });
        return $(returning);
      },
      capEpic: function() {
        var returning = [];
        this.each(function() {
          returning.push(this.replace(/\b(epic)\b/gi, '<span class="epic">$1</span>'));
        });
        return $(returning);
      },
      makeHeart: function() {
        var returning = [];
        this.each(function() {
          returning.push(this.replace(/(&lt;)+[3]/gi, "<tt class='heart'>&#x2665;</tt>"));
        });
        return $(returning);
      }
    });

    function parse_date(date_str) {
      // The non-search twitter APIs return inconsistently-formatted dates, which Date.parse
      // cannot handle in IE. We therefore perform the following transformation:
      // "Wed Apr 29 08:53:31 +0000 2009" => "Wed, Apr 29 2009 08:53:31 +0000"
      return Date.parse(date_str.replace(/^([a-z]{3})( [a-z]{3} \d\d?)(.*)( \d{4})$/i, '$1,$2$4$3'));
    }

    function relative_time(date) {
      var relative_to = (arguments.length > 1) ? arguments[1] : new Date();
      var delta = parseInt((relative_to.getTime() - date) / 1000, 10);
      var r = '';
      if (delta < 60) {
        r = delta + ' seconds ago';
      } else if(delta < 120) {
        r = 'a minute ago';
      } else if(delta < (45*60)) {
        r = (parseInt(delta / 60, 10)).toString() + ' minutes ago';
      } else if(delta < (2*60*60)) {
        r = 'an hour ago';
      } else if(delta < (24*60*60)) {
        r = '' + (parseInt(delta / 3600, 10)).toString() + ' hours ago';
      } else if(delta < (48*60*60)) {
        r = 'a day ago';
      } else {
        r = (parseInt(delta / 86400, 10)).toString() + ' days ago';
      }
      return r;
    }

    function build_url() {
      var proto = ('https:' == document.location.protocol ? 'https:' : 'http:');
      var count = (s.fetch === null) ? s.count : s.fetch;
      if (s.list) {
        return proto+"//"+s.twitter_api_url+"/1/"+s.username[0]+"/lists/"+s.list+"/statuses.json?per_page="+count+"&callback=?";
      } else if (s.favorites) {
        return proto+"//"+s.twitter_api_url+"/favorites/"+s.username[0]+".json?count="+s.count+"&callback=?";
      } else if (s.query === null && s.username.length == 1) {
        return proto+'//'+s.twitter_api_url+'/1/statuses/user_timeline.json?screen_name='+s.username[0]+'&count='+count+(s.retweets ? '&include_rts=1' : '')+'&callback=?';
      } else {
        var query = (s.query || 'from:'+s.username.join(' OR from:'));
        return proto+'//'+s.twitter_search_url+'/search.json?&q='+encodeURIComponent(query)+'&rpp='+count+'&callback=?';
      }
    }

    return this.each(function(i, widget){
      var list = $('<ul class="tweet_list">').appendTo(widget);
      var intro = '<p class="tweet_intro">'+s.intro_text+'</p>';
      var outro = '<p class="tweet_outro">'+s.outro_text+'</p>';
      var loading = $('<p class="loading">'+s.loading_text+'</p>');

      if(s.username && typeof(s.username) == "string"){
        s.username = [s.username];
      }

      var expand_template = function(info) {
        if (typeof s.template === "string") {
          var result = s.template;
          for(var key in info) {
            var val = info[key];
            result = result.replace(new RegExp('{'+key+'}','g'), val === null ? '' : val);
          }
          return result;
        } else return s.template(info);
      };

      if (s.loading_text) $(widget).append(loading);
      $(widget).bind("load", function(){
        $.getJSON(build_url(), function(data){
          if (s.loading_text) loading.remove();
          if (s.intro_text) list.before(intro);
          list.empty();

          var tweets = $.map(data.results || data, function(item){
            var join_text = s.join_text;

            // auto join text based on verb tense and content
            if (s.join_text == "auto") {
              if (item.text.match(/^(@([A-Za-z0-9-_]+)) .*/i)) {
                join_text = s.auto_join_text_reply;
              } else if (item.text.match(/(^\w+:\/\/[A-Za-z0-9-_]+\.[A-Za-z0-9-_:%&\?\/.=]+) .*/i)) {
                join_text = s.auto_join_text_url;
              } else if (item.text.match(/^((\w+ed)|just) .*/im)) {
                join_text = s.auto_join_text_ed;
              } else if (item.text.match(/^(\w*ing) .*/i)) {
                join_text = s.auto_join_text_ing;
              } else {
                join_text = s.auto_join_text_default;
              }
            }

            // Basic building blocks for constructing tweet <li> using a template
            var screen_name = item.from_user || item.user.screen_name;
            var source = item.source;
            var user_url = "http://"+s.twitter_url+"/"+screen_name;
            var avatar_size = s.avatar_size;
            var avatar_url = item.profile_image_url || item.user.profile_image_url;
            var tweet_url = "http://"+s.twitter_url+"/"+screen_name+"/status/"+item.id_str;
            var retweet = (typeof(item.retweeted_status) != 'undefined');
            var retweeted_screen_name = retweet ? item.retweeted_status.user.screen_name : null;
            var tweet_time = parse_date(item.created_at);
            var tweet_relative_time = relative_time(tweet_time);
            var tweet_raw_text = retweet ? ('RT @'+retweeted_screen_name+' '+item.retweeted_status.text) : item.text; // avoid '...' in long retweets
            var tweet_text = $([tweet_raw_text]).linkUrl().linkUser().linkHash()[0];

            // Default spans, and pre-formatted blocks for common layouts
            var user = '<a class="tweet_user" href="'+user_url+'">'+screen_name+'</a>';
            var join = ((s.join_text) ? ('<span class="tweet_join"> '+join_text+' </span>') : ' ');
            var avatar = (avatar_size ?
                          ('<a class="tweet_avatar" href="'+user_url+'"><img src="'+avatar_url+
                           '" height="'+avatar_size+'" width="'+avatar_size+
                           '" alt="'+screen_name+'\'s avatar" title="'+screen_name+'\'s avatar" border="0"/></a>') : '');
            var time = '<span class="tweet_time"><a href="'+tweet_url+'" title="view tweet on twitter">'+tweet_relative_time+'</a></span>';
            var text = '<span class="tweet_text">'+$([tweet_text]).makeHeart().capAwesome().capEpic()[0]+ '</span>';

            return { item: item, // For advanced users who want to dig out other info
                     screen_name: screen_name,
                     user_url: user_url,
                     avatar_size: avatar_size,
                     avatar_url: avatar_url,
                     source: source,
                     tweet_url: tweet_url,
                     tweet_time: tweet_time,
                     tweet_relative_time: tweet_relative_time,
                     tweet_raw_text: tweet_raw_text,
                     tweet_text: tweet_text,
                     retweet: retweet,
                     retweeted_screen_name: retweeted_screen_name,
                     user: user,
                     join: join,
                     avatar: avatar,
                     time: time,
                     text: text
                   };
          });

          tweets = $.grep(tweets, s.filter).slice(0, s.count);
          list.append($.map(tweets.sort(s.comparator),
                            function(t) { return "<li>" + expand_template(t) + "</li>"; }).join('')).
              children('li:first').addClass('tweet_first').end().
              children('li:odd').addClass('tweet_even').end().
              children('li:even').addClass('tweet_odd');

          if (s.outro_text) list.after(outro);
          $(widget).trigger("loaded").trigger((tweets.length === 0 ? "empty" : "full"));
          if (s.refresh_interval) {
            window.setTimeout(function() { $(widget).trigger("load"); }, 1000 * s.refresh_interval);
          }
        });
      }).trigger("load");
    });
  };
})(jQuery);

