

<!--


<!--
/*
 * jQuery UI Datepicker
 *
 * Copyright (c) 2006, 2007, 2008 Marc Grabanski
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 * 
 * http://docs.jquery.com/UI/Datepicker
 *
 * Depends:
 * ui.core.js
 *
 * Marc Grabanski (m@marcgrabanski.com) and Keith Wood (kbwood@virginbroadband.com.au).
 */
   
(function($) { // hide the namespace
var PROP_NAME = 'datepicker';
/* Date picker manager.
   Use the singleton instance of this class, $.datepicker, to interact with the date picker.
   Settings for (groups of) date pickers are maintained in an instance object,
   allowing multiple different settings on the same page. */
function Datepicker() {
 this.debug = false; // Change this to true to start debugging
 this._curInst = null; // The current instance in use
 this._disabledInputs = []; // List of date picker inputs that have been disabled
 this._datepickerShowing = false; // True if the popup picker is showing , false if not
 this._inDialog = false; // True if showing within a "dialog", false if not
 this._mainDivId = 'ui-datepicker-div'; // The ID of the main datepicker division
 this._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._promptClass = 'ui-datepicker-prompt'; // The name of the dialog prompt 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.regional = []; // Available regional settings, indexed by language code
 this.regional[''] = { // Default regional settings
  clearText: 'Clear', // Display text for clear link
  clearStatus: 'Erase the current date', // Status text for clear link
  closeText: 'Close', // Display text for close link
  closeStatus: 'Close without change', // Status text for close link
  prevText: '&#x3c;Prev', // Display text for previous month link
  prevStatus: 'Show the previous month', // Status text for previous month link
  prevBigText: '&#x3c;&#x3c;', // Display text for previous year link
  prevBigStatus: 'Show the previous year', // Status text for previous year link
  nextText: 'Next&#x3e;', // Display text for next month link
  nextStatus: 'Show the next month', // Status text for next month link
  nextBigText: '&#x3e;&#x3e;', // Display text for next year link
  nextBigStatus: 'Show the next year', // Status text for next year link
  currentText: 'Today', // Display text for current month link
  currentStatus: 'Show the current month', // Status text for current month link
  monthNames: ['January','February','March','April','May','June',
   'July','August','September','October','November','December'], // Names of months for drop-down and formatting
  monthNamesShort: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'], // For formatting
  monthStatus: 'Show a different month', // Status text for selecting a month
  yearStatus: 'Show a different year', // Status text for selecting a year
  weekHeader: 'Wk', // Header for the week of the year column
  weekStatus: 'Week of the year', // Status text for the week of the year column
  dayNames: ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'], // For formatting
  dayNamesShort: ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'], // For formatting
  dayNamesMin: ['Su','Mo','Tu','We','Th','Fr','Sa'], // Column headings for days starting at Sunday
  dayStatus: 'Set DD as first week day', // Status text for the day of the week selection
  dateStatus: 'Select DD, M d', // Status text for the date selection
  dateFormat: 'mm/dd/yy', // See format options on parseDate
  firstDay: 0, // The first day of the week, Sun = 0, Mon = 1, ...
  initStatus: 'Select a date', // Initial Status text on opening
  isRTL: false // True if right-to-left language, false if left-to-right
 };
 this._defaults = { // Global defaults for all the date picker instances
  showOn: 'focus', // 'focus' for popup on focus,
   // 'button' for trigger button, or 'both' for either
  showAnim: 'show', // Name of jQuery animation for popup
  showOptions: {}, // Options for enhanced animations
  defaultDate: null, // Used when field is blank: actual date,
   // +/-number for offset from today, null for today
  appendText: '', // Display text following the input box, e.g. showing the format
  buttonText: '...', // Text for trigger button
  buttonImage: '', // URL for trigger button image
  buttonImageOnly: false, // True if the image appears alone, false if it appears on a button
  closeAtTop: true, // True to have the clear/close at the top,
   // false to have them at the bottom
  mandatory: false, // True to hide the Clear link, false to include it
  hideIfNoPrevNext: false, // True to hide next/previous month links
   // if not applicable, false to just disable them
  navigationAsDateFormat: false, // True if date formatting applied to prev/today/next links
  showBigPrevNext: false, // True to show big prev/next links
  gotoCurrent: false, // True if today link goes back to current selection instead
  changeMonth: true, // True if month can be selected directly, false if only prev/next
  changeYear: true, // True if year can be selected directly, false if only prev/next
  showMonthAfterYear: false, // True if the year select precedes month, false for month then year
  yearRange: '-10:+10', // Range of years to display in drop-down,
   // either relative to current year (-nn:+nn) or absolute (nnnn:nnnn)
  changeFirstDay: true, // True to click on day name to change, false to remain as set
  highlightWeek: false, // True to highlight the selected week
  showOtherMonths: false, // True to show dates in other months, false to leave blank
  showWeeks: false, // True to show week of the year, false to omit
  calculateWeek: this.iso8601Week, // How to calculate the week of the year,
   // takes a Date and returns the number of the week for it
  shortYearCutoff: '+10', // Short year values < this are in the current century,
   // > this are in the previous century, 
   // string value starting with '+' for current year + value
  showStatus: false, // True to show status bar at bottom, false to not show it
  statusForDate: this.dateStatus, // Function to provide status text for a date -
   // takes date and instance as parameters, returns display text
  minDate: null, // The earliest selectable date, or null for no limit
  maxDate: null, // The latest selectable date, or null for no limit
  duration: 'normal', // Duration of display/closure
  beforeShowDay: null, // Function that takes a date and returns an array with
   // [0] = true if selectable, false if not, [1] = custom CSS class name(s) or '', 
   // [2] = cell title (optional), e.g. $.datepicker.noWeekends
  beforeShow: null, // Function that takes an input field and
   // returns a set of custom settings for the date picker
  onSelect: null, // Define a callback function when a date is selected
  onChangeMonthYear: null, // Define a callback function when the month or year is changed
  onClose: null, // Define a callback function when the datepicker is closed
  numberOfMonths: 1, // Number of months to show at a time
  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
  rangeSelect: false, // Allows for selecting a date range on one date picker
  rangeSeparator: ' - ', // Text between two dates in a range
  altField: '', // Selector for an alternate field to store selected dates into
  altFormat: '' // The date format to use for the alternate field
 };
 $.extend(this._defaults, this.regional['']);
 this.dpDiv = $('<div id="' + this._mainDivId + '" style="display: none;"></div>');
}
$.extend(Datepicker.prototype, {
 /* Class name added to elements to indicate already configured with a date picker. */
 markerClassName: 'hasDatepicker',
 /* Debug logging (if enabled). */
 log: function () {
  if (this.debug)
   console.log.apply('', arguments);
 },
 
 /* Override the default settings for all instances of the date picker. 
    @param  settings  object - the new settings to use as defaults (anonymous object)
    @return the manager object */
 setDefaults: function(settings) {
  extendRemove(this._defaults, settings || {});
  return this;
 },
 /* Attach the date picker to a jQuery selection.
    @param  target    element - the target input field or division or span
    @param  settings  object - the new settings to use for this date picker instance (anonymous) */
 _attachDatepicker: function(target, settings) {
  // check for settings on the control itself - in namespace 'date:'
  var inlineSettings = null;
  for (attrName in this._defaults) {
   var attrValue = target.getAttribute('date:' + attrName);
   if (attrValue) {
    inlineSettings = inlineSettings || {};
    try {
     inlineSettings[attrName] = eval(attrValue);
    } catch (err) {
     inlineSettings[attrName] = attrValue;
    }
   }
  }
  var nodeName = target.nodeName.toLowerCase();
  var inline = (nodeName == 'div' || nodeName == 'span');
  if (!target.id)
   target.id = 'dp' + ++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(/([:\[\]\.])/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 + '"></div>'))};
 },
 /* Attach the date picker to an input field. */
 _connectDatepicker: function(target, inst) {
  var input = $(target);
  if (input.hasClass(this.markerClassName))
   return;
  var appendText = this._get(inst, 'appendText');
  var isRTL = this._get(inst, 'isRTL');
  if (appendText)
   input[isRTL ? 'before' : 'after']('<span class="' + this._appendClass + '">' + appendText + '</span>');
  var showOn = this._get(inst, 'showOn');
  if (showOn == 'focus' || showOn == 'both') // pop-up date picker when in the marked field
   input.focus(this._showDatepicker);
  if (showOn == 'button' || showOn == 'both') { // pop-up date picker when button clicked
   var buttonText = this._get(inst, 'buttonText');
   var buttonImage = this._get(inst, 'buttonImage');
   var trigger = $(this._get(inst, 'buttonImageOnly') ? 
    $('<img/>').addClass(this._triggerClass).
     attr({ src: buttonImage, alt: buttonText, title: buttonText }) :
    $('<button type="button"></button>').addClass(this._triggerClass).
     html(buttonImage == '' ? buttonText : $('<img/>').attr(
     { src:buttonImage, alt:buttonText, title:buttonText })));
   input[isRTL ? 'before' : 'after'](trigger);
   trigger.click(function() {
    if ($.datepicker._datepickerShowing && $.datepicker._lastInput == target)
     $.datepicker._hideDatepicker();
    else
     $.datepicker._showDatepicker(target);
    return false;
   });
  }
  input.addClass(this.markerClassName).keydown(this._doKeyDown).keypress(this._doKeyPress).
   bind("setData.datepicker", function(event, key, value) {
    inst.settings[key] = value;
   }).bind("getData.datepicker", function(event, key) {
    return this._get(inst, key);
   });
  $.data(target, PROP_NAME, inst);
 },
 /* Attach an inline date picker to a div. */
 _inlineDatepicker: function(target, inst) {
  var 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));
  this._updateDatepicker(inst);
 },
 /* Tidy up after displaying the date picker. */
 _inlineShow: function(inst) {
  var numMonths = this._getNumberOfMonths(inst); // fix width for dynamic number of date pickers
  inst.dpDiv.width(numMonths[1] * $('.ui-datepicker', inst.dpDiv[0]).width());
 }, 
 /* Pop-up the date picker in a "dialog" box.
    @param  input     element - ignored
    @param  dateText  string - the initial date to display (in the current format)
    @param  onSelect  function - the function(dateText) to call when a date is selected
    @param  settings  object - update the dialog date picker instance's settings (anonymous object)
    @param  pos       int[2] - coordinates for the dialog's position within the screen or
                      event - with x/y coordinates or
                      leave empty for default (screen centre)
    @return the manager object */
 _dialogDatepicker: function(input, dateText, onSelect, settings, pos) {
  var inst = this._dialogInst; // internal instance
  if (!inst) {
   var id = 'dp' + ++this.uuid;
   this._dialogInput = $('<input type="text" id="' + id +
    '" size="1" style="position: absolute; top: -100px;"/>');
   this._dialogInput.keydown(this._doKeyDown);
   $('body').append(this._dialogInput);
   inst = this._dialogInst = this._newInst(this._dialogInput, false);
   inst.settings = {};
   $.data(this._dialogInput[0], PROP_NAME, inst);
  }
  extendRemove(inst.settings, settings || {});
  this._dialogInput.val(dateText);
  this._pos = (pos ? (pos.length ? pos : [pos.pageX, pos.pageY]) : null);
  if (!this._pos) {
   var browserWidth = window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth;
   var browserHeight = window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight;
   var scrollX = document.documentElement.scrollLeft || document.body.scrollLeft;
   var scrollY = document.documentElement.scrollTop || document.body.scrollTop;
   this._pos = // should use actual width/height below
    [(browserWidth / 2) - 100 + scrollX, (browserHeight / 2) - 150 + scrollY];
  }
  // move input on screen for focus, but hidden behind dialog
  this._dialogInput.css('left', this._pos[0] + 'px').css('top', this._pos[1] + 'px');
  inst.settings.onSelect = onSelect;
  this._inDialog = true;
  this.dpDiv.addClass(this._dialogClass);
  this._showDatepicker(this._dialogInput[0]);
  if ($.blockUI)
   $.blockUI(this.dpDiv);
  $.data(this._dialogInput[0], PROP_NAME, inst);
  return this;
 },
 /* Detach a datepicker from its control.
    @param  target    element - the target input field or division or span */
 _destroyDatepicker: function(target) {
  var $target = $(target);
  if (!$target.hasClass(this.markerClassName)) {
   return;
  }
  var nodeName = target.nodeName.toLowerCase();
  $.removeData(target, PROP_NAME);
  if (nodeName == 'input') {
   $target.siblings('.' + this._appendClass).remove().end().
    siblings('.' + this._triggerClass).remove().end().
    removeClass(this.markerClassName).
    unbind('focus', this._showDatepicker).
    unbind('keydown', this._doKeyDown).
    unbind('keypress', this._doKeyPress);
  } else if (nodeName == 'div' || nodeName == 'span')
   $target.removeClass(this.markerClassName).empty();
 },
 /* Enable the date picker to a jQuery selection.
    @param  target    element - the target input field or division or span */
 _enableDatepicker: function(target) {
  var $target = $(target);
  if (!$target.hasClass(this.markerClassName)) {
   return;
  }
  var nodeName = target.nodeName.toLowerCase();
  if (nodeName == 'input') {
  target.disabled = false;
   $target.siblings('button.' + this._triggerClass).
   each(function() { this.disabled = false; }).end().
    siblings('img.' + this._triggerClass).
    css({opacity: '1.0', cursor: ''});
  }
  else if (nodeName == 'div' || nodeName == 'span') {
   $target.children('.' + this._disableClass).remove();
  }
  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 = $(target);
  if (!$target.hasClass(this.markerClassName)) {
   return;
  }
  var nodeName = target.nodeName.toLowerCase();
  if (nodeName == 'input') {
  target.disabled = true;
   $target.siblings('button.' + this._triggerClass).
   each(function() { this.disabled = true; }).end().
    siblings('img.' + this._triggerClass).
    css({opacity: '0.5', cursor: 'default'});
  }
  else if (nodeName == 'div' || nodeName == 'span') {
   var inline = $target.children('.' + this._inlineClass);
   var offset = inline.offset();
   var relOffset = {left: 0, top: 0};
   inline.parents().each(function() {
    if ($(this).css('position') == 'relative') {
     relOffset = $(this).offset();
     return false;
    }
   });
   $target.prepend('<div class="' + this._disableClass + '" style="' +
    ($.browser.msie ? 'background-color: transparent; ' : '') +
    'width: ' + inline.width() + 'px; height: ' + inline.height() +
    'px; left: ' + (offset.left - relOffset.left) +
    'px; top: ' + (offset.top - relOffset.top) + 'px;"></div>');
  }
  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 the settings for a date picker attached to an input field or division.
    @param  target  element - the target input field or division or span
    @param  name    object - the new settings to update or
                    string - the name of the setting to change or
    @param  value   any - the new value for the setting (omit if above is an object) */
 _changeDatepicker: function(target, name, value) {
  var settings = name || {};
  if (typeof name == 'string') {
   settings = {};
   settings[name] = value;
  }
  var inst = this._getInst(target);
  if (inst) {
   if (this._curInst == inst) {
    this._hideDatepicker(null);
   }
   extendRemove(inst.settings, settings);
   var date = new Date();
   extendRemove(inst, {rangeStart: null, // start of range
    endDay: null, endMonth: null, endYear: null, // end of range
    selectedDay: date.getDate(), selectedMonth: date.getMonth(),
    selectedYear: date.getFullYear(), // starting point
    currentDay: date.getDate(), currentMonth: date.getMonth(),
    currentYear: date.getFullYear(), // current selection
    drawMonth: date.getMonth(), drawYear: date.getFullYear()}); // month being drawn
   this._updateDatepicker(inst);
  }
 },
 /* 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
    @param  endDate  Date - the new end date for a range (optional) */
 _setDateDatepicker: function(target, date, endDate) {
  var inst = this._getInst(target);
  if (inst) {
   this._setDate(inst, date, endDate);
   this._updateDatepicker(inst);
  }
 },
 /* Get the date(s) for the first entry in a jQuery selection.
    @param  target  element - the target input field or division or span
    @return Date - the current date or
            Date[2] - the current dates for a range */
 _getDateDatepicker: function(target) {
  var inst = this._getInst(target);
  if (inst && !inst.inline)
   this._setDateFromField(inst); 
  return (inst ? this._getDate(inst) : null);
 },
 /* Handle keystrokes. */
 _doKeyDown: function(e) {
  var inst = $.datepicker._getInst(e.target);
  var handled = true;
  if ($.datepicker._datepickerShowing)
   switch (e.keyCode) {
    case 9:  $.datepicker._hideDatepicker(null, '');
      break; // hide on tab out
    case 13: $.datepicker._selectDay(e.target, inst.selectedMonth, inst.selectedYear,
       $('td.ui-datepicker-days-cell-over', inst.dpDiv)[0]);
      return false; // don't submit the form
      break; // select the value on enter
    case 27: $.datepicker._hideDatepicker(null, $.datepicker._get(inst, 'duration'));
      break; // hide on escape
    case 33: $.datepicker._adjustDate(e.target, (e.ctrlKey ?
       -$.datepicker._get(inst, 'stepBigMonths') :
       -$.datepicker._get(inst, 'stepMonths')), 'M');
      break; // previous month/year on page up/+ ctrl
    case 34: $.datepicker._adjustDate(e.target, (e.ctrlKey ?
       +$.datepicker._get(inst, 'stepBigMonths') :
       +$.datepicker._get(inst, 'stepMonths')), 'M');
      break; // next month/year on page down/+ ctrl
    case 35: if (e.ctrlKey) $.datepicker._clearDate(e.target);
      handled = e.ctrlKey;
      break; // clear on ctrl+end
    case 36: if (e.ctrlKey) $.datepicker._gotoToday(e.target);
      handled = e.ctrlKey;
      break; // current on ctrl+home
    case 37: if (e.ctrlKey) $.datepicker._adjustDate(e.target, -1, 'D');
      handled = e.ctrlKey;
      break; // -1 day on ctrl+left
    case 38: if (e.ctrlKey) $.datepicker._adjustDate(e.target, -7, 'D');
      handled = e.ctrlKey;
      break; // -1 week on ctrl+up
    case 39: if (e.ctrlKey) $.datepicker._adjustDate(e.target, +1, 'D');
      handled = e.ctrlKey;
      break; // +1 day on ctrl+right
    case 40: if (e.ctrlKey) $.datepicker._adjustDate(e.target, +7, 'D');
      handled = e.ctrlKey;
      break; // +1 week on ctrl+down
    default: handled = false;
   }
  else if (e.keyCode == 36 && e.ctrlKey) // display the date picker on ctrl+home
   $.datepicker._showDatepicker(this);
  else
   handled = false;
  if (handled) {
   e.preventDefault();
   e.stopPropagation();
  }
 },
 /* Filter entered characters - based on date format. */
 _doKeyPress: function(e) {
  var inst = $.datepicker._getInst(e.target);
  var chars = $.datepicker._possibleChars($.datepicker._get(inst, 'dateFormat'));
  var chr = String.fromCharCode(e.charCode == undefined ? e.keyCode : e.charCode);
  return e.ctrlKey || (chr < ' ' || !chars || chars.indexOf(chr) > -1);
 },
 /* Pop-up the date picker for a given input field.
    @param  input  element - the input field attached to the date picker or
                   event - if triggered by focus */
 _showDatepicker: function(input) {
  input = input.target || input;
  if (input.nodeName.toLowerCase() != 'input') // find from button/image trigger
   input = $('input', input.parentNode)[0];
  if ($.datepicker._isDisabledDatepicker(input) || $.datepicker._lastInput == input) // already here
   return;
  var inst = $.datepicker._getInst(input);
  var beforeShow = $.datepicker._get(inst, 'beforeShow');
  extendRemove(inst.settings, (beforeShow ? beforeShow.apply(input, [input, inst]) : {}));
  $.datepicker._hideDatepicker(null, '');
  $.datepicker._lastInput = input;
  $.datepicker._setDateFromField(inst);
  if ($.datepicker._inDialog) // hide cursor
   input.value = '';
  if (!$.datepicker._pos) { // position below input
   $.datepicker._pos = $.datepicker._findPos(input);
   $.datepicker._pos[1] += input.offsetHeight; // add the height
  }
  var isFixed = false;
  $(input).parents().each(function() {
   isFixed |= $(this).css('position') == 'fixed';
   return !isFixed;
  });
  if (isFixed && $.browser.opera) { // correction for Opera when fixed and scrolled
   $.datepicker._pos[0] -= document.documentElement.scrollLeft;
   $.datepicker._pos[1] -= document.documentElement.scrollTop;
  }
  var offset = {left: $.datepicker._pos[0], top: $.datepicker._pos[1]};
  $.datepicker._pos = null;
  inst.rangeStart = null;
  // determine sizing offscreen
  inst.dpDiv.css({position: 'absolute', display: 'block', top: '-1000px'});
  $.datepicker._updateDatepicker(inst);
  // fix width for dynamic number of date pickers
  inst.dpDiv.width($.datepicker._getNumberOfMonths(inst)[1] *
   $('.ui-datepicker', inst.dpDiv[0])[0].offsetWidth);
  // and adjust position before showing
  offset = $.datepicker._checkOffset(inst, offset, isFixed);
  inst.dpDiv.css({position: ($.datepicker._inDialog && $.blockUI ?
   'static' : (isFixed ? 'fixed' : 'absolute')), display: 'none',
   left: offset.left + 'px', top: offset.top + 'px'});
  if (!inst.inline) {
   var showAnim = $.datepicker._get(inst, 'showAnim') || 'show';
   var duration = $.datepicker._get(inst, 'duration');
   var postProcess = function() {
    $.datepicker._datepickerShowing = true;
    if ($.browser.msie && parseInt($.browser.version) < 7) // fix IE < 7 select problems
     $('iframe.ui-datepicker-cover').css({width: inst.dpDiv.width() + 4,
      height: inst.dpDiv.height() + 4});
   };
   if ($.effects && $.effects[showAnim])
    inst.dpDiv.show(showAnim, $.datepicker._get(inst, 'showOptions'), duration, postProcess);
   else
    inst.dpDiv[showAnim](duration, postProcess);
   if (duration == '')
    postProcess();
   if (inst.input[0].type != 'hidden')
    inst.input[0].focus();
   $.datepicker._curInst = inst;
  }
 },
 /* Generate the date picker content. */
 _updateDatepicker: function(inst) {
  var dims = {width: inst.dpDiv.width() + 4,
   height: inst.dpDiv.height() + 4};
  inst.dpDiv.empty().append(this._generateHTML(inst)).
   find('iframe.ui-datepicker-cover').
   css({width: dims.width, height: dims.height});
  var numMonths = this._getNumberOfMonths(inst);
  inst.dpDiv[(numMonths[0] != 1 || numMonths[1] != 1 ? 'add' : 'remove') +
   'Class']('ui-datepicker-multi');
  inst.dpDiv[(this._get(inst, 'isRTL') ? 'add' : 'remove') +
   'Class']('ui-datepicker-rtl');
  if (inst.input && inst.input[0].type != 'hidden')
   $(inst.input[0]).focus();
 },
 /* Check positioning to remain on screen. */
 _checkOffset: function(inst, offset, isFixed) {
  var pos = inst.input ? this._findPos(inst.input[0]) : null;
  var browserWidth = window.innerWidth || document.documentElement.clientWidth;
  var browserHeight = window.innerHeight || document.documentElement.clientHeight;
  var scrollX = document.documentElement.scrollLeft || document.body.scrollLeft;
  var scrollY = document.documentElement.scrollTop || document.body.scrollTop;
  // reposition date picker horizontally if outside the browser window
  if (this._get(inst, 'isRTL') || (offset.left + inst.dpDiv.width() - scrollX) > browserWidth)
   offset.left = Math.max((isFixed ? 0 : scrollX),
    pos[0] + (inst.input ? inst.input.width() : 0) - (isFixed ? scrollX : 0) - inst.dpDiv.width() -
    (isFixed && $.browser.opera ? document.documentElement.scrollLeft : 0));
  else
   offset.left -= (isFixed ? scrollX : 0);
  // reposition date picker vertically if outside the browser window
  if ((offset.top + inst.dpDiv.height() - scrollY) > browserHeight)
   offset.top = Math.max((isFixed ? 0 : scrollY),
    pos[1] - (isFixed ? scrollY : 0) - (this._inDialog ? 0 : inst.dpDiv.height()) -
    (isFixed && $.browser.opera ? document.documentElement.scrollTop : 0));
  else
   offset.top -= (isFixed ? scrollY : 0);
  return offset;
 },
 
 /* Find an object's position on the screen. */
 _findPos: function(obj) {
        while (obj && (obj.type == 'hidden' || obj.nodeType != 1)) {
            obj = obj.nextSibling;
        }
        var position = $(obj).offset();
     return [position.left, position.top];
 },
 /* Hide the date picker from view.
    @param  input  element - the input field attached to the date picker
    @param  duration  string - the duration over which to close the date picker */
 _hideDatepicker: function(input, duration) {
  var inst = this._curInst;
  if (!inst || (input && inst != $.data(input, PROP_NAME)))
   return;
  var rangeSelect = this._get(inst, 'rangeSelect');
  if (rangeSelect && inst.stayOpen)
   this._selectDate('#' + inst.id, this._formatDate(inst,
    inst.currentDay, inst.currentMonth, inst.currentYear));
  inst.stayOpen = false;
  if (this._datepickerShowing) {
   duration = (duration != null ? duration : this._get(inst, 'duration'));
   var showAnim = this._get(inst, 'showAnim');
   var postProcess = function() {
    $.datepicker._tidyDialog(inst);
   };
   if (duration != '' && $.effects && $.effects[showAnim])
    inst.dpDiv.hide(showAnim, $.datepicker._get(inst, 'showOptions'),
     duration, postProcess);
   else
    inst.dpDiv[(duration == '' ? 'hide' : (showAnim == 'slideDown' ? 'slideUp' :
     (showAnim == 'fadeIn' ? 'fadeOut' : 'hide')))](duration, postProcess);
   if (duration == '')
    this._tidyDialog(inst);
   var onClose = this._get(inst, 'onClose');
   if (onClose)
    onClose.apply((inst.input ? inst.input[0] : null),
     [this._getDate(inst), inst]);  // trigger custom callback
   this._datepickerShowing = false;
   this._lastInput = null;
   inst.settings.prompt = null;
   if (this._inDialog) {
    this._dialogInput.css({ position: 'absolute', left: '0', top: '-100px' });
    if ($.blockUI) {
     $.unblockUI();
     $('body').append(this.dpDiv);
    }
   }
   this._inDialog = false;
  }
  this._curInst = null;
 },
 /* Tidy up after a dialog display. */
 _tidyDialog: function(inst) {
  inst.dpDiv.removeClass(this._dialogClass).unbind('.ui-datepicker');
  $('.' + this._promptClass, inst.dpDiv).remove();
 },
 /* Close date picker if clicked elsewhere. */
 _checkExternalClick: function(event) {
  if (!$.datepicker._curInst)
   return;
  var $target = $(event.target);
  if (($target.parents('#' + $.datepicker._mainDivId).length == 0) &&
    !$target.hasClass($.datepicker.markerClassName) &&
    !$target.hasClass($.datepicker._triggerClass) &&
    $.datepicker._datepickerShowing && !($.datepicker._inDialog && $.blockUI))
   $.datepicker._hideDatepicker(null, '');
 },
 /* Adjust one of the date sub-fields. */
 _adjustDate: function(id, offset, period) {
  var target = $(id);
  var inst = this._getInst(target[0]);
  this._adjustInstDate(inst, offset, 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);
  this._notifyChange(inst);
  this._adjustDate(target);
 },
 /* Restore input focus after not changing month/year. */
 _clickMonthYear: function(id) {
  var target = $(id);
  var inst = this._getInst(target[0]);
  if (inst.input && inst._selectingMonthYear && !$.browser.msie)
   inst.input[0].focus();
  inst._selectingMonthYear = !inst._selectingMonthYear;
 },
 /* Action for changing the first week day. */
 _changeFirstDay: function(id, day) {
  var target = $(id);
  var inst = this._getInst(target[0]);
  inst.settings.firstDay = day;
  this._updateDatepicker(inst);
 },
 /* Action for selecting a day. */
 _selectDay: function(id, month, year, td) {
  if ($(td).hasClass(this._unselectableClass))
   return;
  var target = $(id);
  var inst = this._getInst(target[0]);
  var rangeSelect = this._get(inst, 'rangeSelect');
  if (rangeSelect) {
   inst.stayOpen = !inst.stayOpen;
   if (inst.stayOpen) {
    $('.ui-datepicker td', inst.dpDiv).removeClass(this._currentClass);
    $(td).addClass(this._currentClass);
   } 
  }
  inst.selectedDay = inst.currentDay = $('a', td).html();
  inst.selectedMonth = inst.currentMonth = month;
  inst.selectedYear = inst.currentYear = year;
  if (inst.stayOpen) {
   inst.endDay = inst.endMonth = inst.endYear = null;
  }
  else if (rangeSelect) {
   inst.endDay = inst.currentDay;
   inst.endMonth = inst.currentMonth;
   inst.endYear = inst.currentYear;
  }
  this._selectDate(id, this._formatDate(inst,
   inst.currentDay, inst.currentMonth, inst.currentYear));
  if (inst.stayOpen) {
   inst.rangeStart = new Date(inst.currentYear, inst.currentMonth, inst.currentDay);
   this._updateDatepicker(inst);
  }
  else if (rangeSelect) {
   inst.selectedDay = inst.currentDay = inst.rangeStart.getDate();
   inst.selectedMonth = inst.currentMonth = inst.rangeStart.getMonth();
   inst.selectedYear = inst.currentYear = inst.rangeStart.getFullYear();
   inst.rangeStart = null;
   if (inst.inline)
    this._updateDatepicker(inst);
  }
 },
 /* Erase the input field and hide the date picker. */
 _clearDate: function(id) {
  var target = $(id);
  var inst = this._getInst(target[0]);
  if (this._get(inst, 'mandatory'))
   return;
  inst.stayOpen = false;
  inst.endDay = inst.endMonth = inst.endYear = inst.rangeStart = null;
  this._selectDate(target, '');
 },
 /* Update the input field with the selected date. */
 _selectDate: function(id, dateStr) {
  var target = $(id);
  var inst = this._getInst(target[0]);
  dateStr = (dateStr != null ? dateStr : this._formatDate(inst));
  if (this._get(inst, 'rangeSelect') && dateStr)
   dateStr = (inst.rangeStart ? this._formatDate(inst, inst.rangeStart) :
    dateStr) + this._get(inst, 'rangeSeparator') + dateStr;
  if (inst.input)
   inst.input.val(dateStr);
  this._updateAlternate(inst);
  var onSelect = this._get(inst, 'onSelect');
  if (onSelect)
   onSelect.apply((inst.input ? inst.input[0] : null), [dateStr, inst]);  // trigger custom callback
  else if (inst.input)
   inst.input.trigger('change'); // fire the change event
  if (inst.inline)
   this._updateDatepicker(inst);
  else if (!inst.stayOpen) {
   this._hideDatepicker(null, this._get(inst, 'duration'));
   this._lastInput = inst.input[0];
   if (typeof(inst.input[0]) != 'object')
    inst.input[0].focus(); // restore focus
   this._lastInput = null;
  }
 },
 
 /* Update any alternate field to synchronise with the main field. */
 _updateAlternate: function(inst) {
  var altField = this._get(inst, 'altField');
  if (altField) { // update alternate field too
   var altFormat = this._get(inst, 'altFormat');
   var date = this._getDate(inst);
   dateStr = (isArray(date) ? (!date[0] && !date[1] ? '' :
    this.formatDate(altFormat, date[0], this._getFormatConfig(inst)) +
    this._get(inst, 'rangeSeparator') + this.formatDate(
    altFormat, date[1] || date[0], this._getFormatConfig(inst))) :
    this.formatDate(altFormat, date, this._getFormatConfig(inst)));
   $(altField).each(function() { $(this).val(dateStr); });
  }
 },
 /* Set as beforeShowDay function to prevent selection of weekends.
    @param  date  Date - the date to customise
    @return [boolean, string] - is this date selectable?, what is its CSS class? */
 noWeekends: function(date) {
  var day = date.getDay();
  return [(day > 0 && day < 6), ''];
 },
 
 /* Set as calculateWeek to determine the week of the year based on the ISO 8601 definition.
    @param  date  Date - the date to get the week for
    @return  number - the number of the week within the year that contains this date */
 iso8601Week: function(date) {
  var checkDate = new Date(date.getFullYear(), date.getMonth(), date.getDate(),
   (date.getTimezoneOffset() / -60));
  var firstMon = new Date(checkDate.getFullYear(), 1 - 1, 4); // First week always contains 4 Jan
  var firstDay = firstMon.getDay() || 7; // Day of week: Mon = 1, ..., Sun = 7
  firstMon.setDate(firstMon.getDate() + 1 - firstDay); // Preceding Monday
  if (firstDay < 4 && checkDate < firstMon) { // Adjust first three days in year if necessary
   checkDate.setDate(checkDate.getDate() - 3); // Generate for previous year
   return $.datepicker.iso8601Week(checkDate);
  } else if (checkDate > new Date(checkDate.getFullYear(), 12 - 1, 28)) { // Check last three days in year
   firstDay = new Date(checkDate.getFullYear() + 1, 1 - 1, 4).getDay() || 7;
   if (firstDay > 4 && (checkDate.getDay() || 7) < firstDay - 3) { // Adjust if necessary
    return 1;
   }
  }
  return Math.floor(((checkDate - firstMon) / 86400000) / 7) + 1; // Weeks to given date
 },
 
 /* Provide status text for a particular date.
    @param  date  the date to get the status for
    @param  inst  the current datepicker instance
    @return  the status display text for this date */
 dateStatus: function(date, inst) {
  return $.datepicker.formatDate($.datepicker._get(inst, 'dateStatus'),
   date, $.datepicker._getFormatConfig(inst));
 },
 /* Parse a string value into a date object.
    See formatDate below for the possible formats.
    @param  format    string - the expected format of the date
    @param  value     string - the date in the above format
    @param  settings  Object - attributes include:
                      shortYearCutoff  number - the cutoff year for determining the century (optional)
                      dayNamesShort    string[7] - abbreviated names of the days from Sunday (optional)
                      dayNames         string[7] - names of the days from Sunday (optional)
                      monthNamesShort  string[12] - abbreviated names of the months (optional)
                      monthNames       string[12] - names of the months (optional)
    @return  Date - the extracted date value or null if value is blank */
 parseDate: function (format, value, settings) {
  if (format == null || value == null)
   throw 'Invalid arguments';
  value = (typeof value == 'object' ? value.toString() : value + '');
  if (value == '')
   return null;
  var shortYearCutoff = (settings ? settings.shortYearCutoff : null) || this._defaults.shortYearCutoff;
  var dayNamesShort = (settings ? settings.dayNamesShort : null) || this._defaults.dayNamesShort;
  var dayNames = (settings ? settings.dayNames : null) || this._defaults.dayNames;
  var monthNamesShort = (settings ? settings.monthNamesShort : null) || this._defaults.monthNamesShort;
  var monthNames = (settings ? settings.monthNames : null) || this._defaults.monthNames;
  var year = -1;
  var month = -1;
  var day = -1;
  var 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) {
   lookAhead(match);
   var origSize = (match == '@' ? 14 : (match == 'y' ? 4 : (match == 'o' ? 3 : 2)));
   var size = origSize;
   var num = 0;
   while (size > 0 && iValue < value.length &&
     value.charAt(iValue) >= '0' && value.charAt(iValue) <= '9') {
    num = num * 10 + parseInt(value.charAt(iValue++));
    size--;
   }
   if (size == origSize)
    throw 'Missing number at position ' + iValue;
   return num;
  };
  // Extract a name from the string value and convert to an index
  var getName = function(match, shortNames, longNames) {
   var names = (lookAhead(match) ? longNames : shortNames);
   var size = 0;
   for (var j = 0; j < names.length; j++)
    size = Math.max(size, names[j].length);
   var name = '';
   var iInit = iValue;
   while (size > 0 && iValue < value.length) {
    name += value.charAt(iValue++);
    for (var i = 0; i < names.length; i++)
     if (name == names[i])
      return i + 1;
    size--;
   }
   throw 'Unknown name at position ' + iInit;
  };
  // Confirm that a literal character matches the string value
  var checkLiteral = function() {
   if (value.charAt(iValue) != format.charAt(iFormat))
    throw 'Unexpected literal at position ' + iValue;
   iValue++;
  };
  var iValue = 0;
  for (var iFormat = 0; iFormat < format.length; iFormat++) {
   if (literal)
    if (format.charAt(iFormat) == "'" && !lookAhead("'"))
     literal = false;
    else
     checkLiteral();
   else
    switch (format.charAt(iFormat)) {
     case 'd':
      day = getNumber('d');
      break;
     case 'D': 
      getName('D', dayNamesShort, dayNames);
      break;
     case '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 "'":
      if (lookAhead("'"))
       checkLiteral();
      else
       literal = true;
      break;
     default:
      checkLiteral();
    }
  }
  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 = new Date(year, month - 1, day);
  if (date.getFullYear() != year || date.getMonth() + 1 != month || date.getDate() != day)
   throw 'Invalid date'; // E.g. 31/02/*
  return date;
 },
 /* Standard date formats. */
 ATOM: 'yy-mm-dd', // RFC 3339 (ISO 8601)
 COOKIE: 'D, dd M yy',
 ISO_8601: 'yy-mm-dd',
 RFC_822: 'D, d M y',
 RFC_850: 'DD, dd-M-y',
 RFC_1036: 'D, d M y',
 RFC_1123: 'D, d M yy',
 RFC_2822: 'D, d M yy',
 RSS: 'D, d M y', // RFC 822
 TIMESTAMP: '@',
 W3C: 'yy-mm-dd', // ISO 8601
 /* Format a date object into a string value.
    The format can be combinations of the following:
    d  - day of month (no leading zero)
    dd - day of month (two digit)
    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)
    '...' - 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':
       var doy = date.getDate();
       for (var m = date.getMonth() - 1; m >= 0; m--)
        doy += this._getDaysInMonth(date.getFullYear(), m);
       output += formatNumber('o', doy, 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 "'":
       if (lookAhead("'"))
        output += "'";
       else
        literal = true;
       break;
      default:
       output += format.charAt(iFormat);
     }
   }
  return output;
 },
 /* Extract all possible characters from the date format. */
 _possibleChars: function (format) {
  var chars = '';
  var literal = false;
  for (var iFormat = 0; iFormat < format.length; iFormat++)
   if (literal)
    if (format.charAt(iFormat) == "'" && !lookAhead("'"))
     literal = false;
    else
     chars += format.charAt(iFormat);
   else
    switch (format.charAt(iFormat)) {
     case 'd': case 'm': case 'y': case '@':
      chars += '0123456789'; 
      break;
     case 'D': case 'M':
      return null; // Accept anything
     case "'":
      if (lookAhead("'"))
       chars += "'";
      else
       literal = true;
      break;
     default:
      chars += format.charAt(iFormat);
    }
  return chars;
 },
 /* Get a setting value, defaulting if necessary. */
 _get: function(inst, name) {
  return inst.settings[name] !== undefined ?
   inst.settings[name] : this._defaults[name];
 },
 /* Parse existing date and initialise date picker. */
 _setDateFromField: function(inst) {
  var dateFormat = this._get(inst, 'dateFormat');
  var dates = inst.input ? inst.input.val().split(this._get(inst, 'rangeSeparator')) : null; 
  inst.endDay = inst.endMonth = inst.endYear = null;
  var date = defaultDate = this._getDefaultDate(inst);
  if (dates.length > 0) {
   var settings = this._getFormatConfig(inst);
   if (dates.length > 1) {
    date = this.parseDate(dateFormat, dates[1], settings) || defaultDate;
    inst.endDay = date.getDate();
    inst.endMonth = date.getMonth();
    inst.endYear = date.getFullYear();
   }
   try {
    date = this.parseDate(dateFormat, dates[0], settings) || defaultDate;
   } catch (e) {
    this.log(e);
    date = defaultDate;
   }
  }
  inst.selectedDay = date.getDate();
  inst.drawMonth = inst.selectedMonth = date.getMonth();
  inst.drawYear = inst.selectedYear = date.getFullYear();
  inst.currentDay = (dates[0] ? date.getDate() : 0);
  inst.currentMonth = (dates[0] ? date.getMonth() : 0);
  inst.currentYear = (dates[0] ? date.getFullYear() : 0);
  this._adjustInstDate(inst);
 },
 
 /* Retrieve the default date shown on opening. */
 _getDefaultDate: function(inst) {
  var date = this._determineDate(this._get(inst, 'defaultDate'), new Date());
  var minDate = this._getMinMaxDate(inst, 'min', true);
  var maxDate = this._getMinMaxDate(inst, 'max');
  date = (minDate && date < minDate ? minDate : date);
  date = (maxDate && date > maxDate ? maxDate : date);
  return date;
 },
 /* A date may be specified as an exact value or a relative one. */
 _determineDate: function(date, defaultDate) {
  var offsetNumeric = function(offset) {
   var date = new Date();
   date.setUTCDate(date.getUTCDate() + offset);
   return date;
  };
  var offsetString = function(offset, getDaysInMonth) {
   var date = new Date();
   var year = date.getFullYear();
   var month = date.getMonth();
   var day = date.getDate();
   var pattern = /([+-]?[0-9]+)\s*(d|D|w|W|m|M|y|Y)?/g;
   var matches = pattern.exec(offset);
   while (matches) {
    switch (matches[2] || 'd') {
     case 'd' : case 'D' :
      day += parseInt(matches[1]); break;
     case 'w' : case 'W' :
      day += parseInt(matches[1]) * 7; break;
     case 'm' : case 'M' :
      month += parseInt(matches[1]); 
      day = Math.min(day, getDaysInMonth(year, month));
      break;
     case 'y': case 'Y' :
      year += parseInt(matches[1]);
      day = Math.min(day, getDaysInMonth(year, month));
      break;
    }
    matches = pattern.exec(offset);
   }
   return new Date(year, month, day);
  };
  date = (date == null ? defaultDate :
   (typeof date == 'string' ? offsetString(date, this._getDaysInMonth) :
   (typeof date == 'number' ? (isNaN(date) ? defaultDate : offsetNumeric(date)) : date)));
  return (date && date.toString() == 'Invalid Date' ? defaultDate : date);
 },
 /* Set the date(s) directly. */
 _setDate: function(inst, date, endDate) {
  var clear = !(date);
  var origMonth = inst.selectedMonth;
  var origYear = inst.selectedYear;
  date = this._determineDate(date, new Date());
  inst.selectedDay = inst.currentDay = date.getDate();
  inst.drawMonth = inst.selectedMonth = inst.currentMonth = date.getMonth();
  inst.drawYear = inst.selectedYear = inst.currentYear = date.getFullYear();
  if (this._get(inst, 'rangeSelect')) {
   if (endDate) {
    endDate = this._determineDate(endDate, null);
    inst.endDay = endDate.getDate();
    inst.endMonth = endDate.getMonth();
    inst.endYear = endDate.getFullYear();
   } else {
    inst.endDay = inst.currentDay;
    inst.endMonth = inst.currentMonth;
    inst.endYear = inst.currentYear;
   }
  }
  if (origMonth != inst.selectedMonth || origYear != inst.selectedYear)
   this._notifyChange(inst);
  this._adjustInstDate(inst);
  if (inst.input)
   inst.input.val(clear ? '' : this._formatDate(inst) +
    (!this._get(inst, 'rangeSelect') ? '' : this._get(inst, 'rangeSeparator') +
    this._formatDate(inst, inst.endDay, inst.endMonth, inst.endYear)));
 },
 /* Retrieve the date(s) directly. */
 _getDate: function(inst) {
  var startDate = (!inst.currentYear || (inst.input && inst.input.val() == '') ? null :
   new Date(inst.currentYear, inst.currentMonth, inst.currentDay));
  if (this._get(inst, 'rangeSelect')) {
   return [inst.rangeStart || startDate,
    (!inst.endYear ? inst.rangeStart || startDate :
    new Date(inst.endYear, inst.endMonth, inst.endDay))];
  } else
   return startDate;
 },
 /* Generate the HTML for the current state of the date picker. */
 _generateHTML: function(inst) {
  var today = new Date();
  today = new Date(today.getFullYear(), today.getMonth(), today.getDate()); // clear time
  var showStatus = this._get(inst, 'showStatus');
  var initStatus = this._get(inst, 'initStatus') || '&#xa0;';
  var isRTL = this._get(inst, 'isRTL');
  // build the date picker HTML
  var clear = (this._get(inst, 'mandatory') ? '' :
   '<div class="ui-datepicker-clear"><a onclick="jQuery.datepicker._clearDate(\'#' + inst.id + '\');"' +
   this._addStatus(showStatus, inst.id, this._get(inst, 'clearStatus'), initStatus) + '>' +
   this._get(inst, 'clearText') + '</a></div>');
  var controls = '<div class="ui-datepicker-control">' + (isRTL ? '' : clear) +
   '<div class="ui-datepicker-close"><a onclick="jQuery.datepicker._hideDatepicker();"' +
   this._addStatus(showStatus, inst.id, this._get(inst, 'closeStatus'), initStatus) + '>' +
   this._get(inst, 'closeText') + '</a></div>' + (isRTL ? clear : '')  + '</div>';
  var prompt = this._get(inst, 'prompt');
  var closeAtTop = this._get(inst, 'closeAtTop');
  var hideIfNoPrevNext = this._get(inst, 'hideIfNoPrevNext');
  var navigationAsDateFormat = this._get(inst, 'navigationAsDateFormat');
  var showBigPrevNext = this._get(inst, 'showBigPrevNext');
  var numMonths = this._getNumberOfMonths(inst);
  var showCurrentAtPos = this._get(inst, 'showCurrentAtPos');
  var stepMonths = this._get(inst, 'stepMonths');
  var stepBigMonths = this._get(inst, 'stepBigMonths');
  var isMultiMonth = (numMonths[0] != 1 || numMonths[1] != 1);
  var currentDate = (!inst.currentDay ? new Date(9999, 9, 9) :
   new Date(inst.currentYear, inst.currentMonth, inst.currentDay));
  var minDate = this._getMinMaxDate(inst, 'min', true);
  var maxDate = this._getMinMaxDate(inst, 'max');
  var drawMonth = inst.drawMonth - showCurrentAtPos;
  var drawYear = inst.drawYear;
  if (drawMonth < 0) {
   drawMonth += 12;
   drawYear--;
  }
  if (maxDate) {
   var maxDraw = new Date(maxDate.getFullYear(),
    maxDate.getMonth() - numMonths[1] + 1, maxDate.getDate());
   maxDraw = (minDate && maxDraw < minDate ? minDate : maxDraw);
   while (new Date(drawYear, drawMonth, 1) > maxDraw) {
    drawMonth--;
    if (drawMonth < 0) {
     drawMonth = 11;
     drawYear--;
    }
   }
  }
  // controls and links
  var prevText = this._get(inst, 'prevText');
  prevText = (!navigationAsDateFormat ? prevText : this.formatDate(
   prevText, new Date(drawYear, drawMonth - stepMonths, 1), this._getFormatConfig(inst)));
  var prevBigText = (showBigPrevNext ? this._get(inst, 'prevBigText') : '');
  prevBigText = (!navigationAsDateFormat ? prevBigText : this.formatDate(
   prevBigText, new Date(drawYear, drawMonth - stepBigMonths, 1), this._getFormatConfig(inst)));
  var prev = '<div class="ui-datepicker-prev">' + (this._canAdjustMonth(inst, -1, drawYear, drawMonth) ? 
   (showBigPrevNext ? '<a onclick="jQuery.datepicker._adjustDate(\'#' + inst.id + '\', -' + stepBigMonths + ', \'M\');"' +
   this._addStatus(showStatus, inst.id, this._get(inst, 'prevBigStatus'), initStatus) + '>' + prevBigText + '</a>' : '') +
   '<a onclick="jQuery.datepicker._adjustDate(\'#' + inst.id + '\', -' + stepMonths + ', \'M\');"' +
   this._addStatus(showStatus, inst.id, this._get(inst, 'prevStatus'), initStatus) + '>' + prevText + '</a>' :
   (hideIfNoPrevNext ? '' : '<label>' + prevBigText + '</label><label>' + prevText + '</label>')) + '</div>';
  var nextText = this._get(inst, 'nextText');
  nextText = (!navigationAsDateFormat ? nextText : this.formatDate(
   nextText, new Date(drawYear, drawMonth + stepMonths, 1), this._getFormatConfig(inst)));
  var nextBigText = (showBigPrevNext ? this._get(inst, 'nextBigText') : '');
  nextBigText = (!navigationAsDateFormat ? nextBigText : this.formatDate(
   nextBigText, new Date(drawYear, drawMonth + stepBigMonths, 1), this._getFormatConfig(inst)));
  var next = '<div class="ui-datepicker-next">' + (this._canAdjustMonth(inst, +1, drawYear, drawMonth) ?
   '<a onclick="jQuery.datepicker._adjustDate(\'#' + inst.id + '\', +' + stepMonths + ', \'M\');"' +
   this._addStatus(showStatus, inst.id, this._get(inst, 'nextStatus'), initStatus) + '>' + nextText + '</a>' +
   (showBigPrevNext ? '<a onclick="jQuery.datepicker._adjustDate(\'#' + inst.id + '\', +' + stepBigMonths + ', \'M\');"' +
   this._addStatus(showStatus, inst.id, this._get(inst, 'nextBigStatus'), initStatus) + '>' + nextBigText + '</a>' : '') :
   (hideIfNoPrevNext ? '' : '<label>' + nextText + '</label><label>' + nextBigText + '</label>')) + '</div>';
  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 html = (prompt ? '<div class="' + this._promptClass + '">' + prompt + '</div>' : '') +
   (closeAtTop && !inst.inline ? controls : '') +
   '<div class="ui-datepicker-links">' + (isRTL ? next : prev) +
   (this._isInRange(inst, gotoDate) ? '<div class="ui-datepicker-current">' +
   '<a onclick="jQuery.datepicker._gotoToday(\'#' + inst.id + '\');"' +
   this._addStatus(showStatus, inst.id, this._get(inst, 'currentStatus'), initStatus) + '>' +
   currentText + '</a></div>' : '') + (isRTL ? prev : next) + '</div>';
  var firstDay = this._get(inst, 'firstDay');
  var changeFirstDay = this._get(inst, 'changeFirstDay');
  var dayNames = this._get(inst, 'dayNames');
  var dayNamesShort = this._get(inst, 'dayNamesShort');
  var dayNamesMin = this._get(inst, 'dayNamesMin');
  var monthNames = this._get(inst, 'monthNames');
  var beforeShowDay = this._get(inst, 'beforeShowDay');
  var highlightWeek = this._get(inst, 'highlightWeek');
  var showOtherMonths = this._get(inst, 'showOtherMonths');
  var showWeeks = this._get(inst, 'showWeeks');
  var calculateWeek = this._get(inst, 'calculateWeek') || this.iso8601Week;
  var weekStatus = this._get(inst, 'weekStatus');
  var status = (showStatus ? this._get(inst, 'dayStatus') || initStatus : '');
  var dateStatus = this._get(inst, 'statusForDate') || this.dateStatus;
  var endDate = inst.endDay ? new Date(inst.endYear, inst.endMonth, inst.endDay) : currentDate;
  for (var row = 0; row < numMonths[0]; row++)
   for (var col = 0; col < numMonths[1]; col++) {
    var selectedDate = new Date(drawYear, drawMonth, inst.selectedDay);
    html += '<div class="ui-datepicker-one-month' + (col == 0 ? ' ui-datepicker-new-row' : '') + '">' +
     this._generateMonthYearHeader(inst, drawMonth, drawYear, minDate, maxDate,
     selectedDate, row > 0 || col > 0, showStatus, initStatus, monthNames) + // draw month headers
     '<table class="ui-datepicker" cellpadding="0" cellspacing="0"><thead>' + 
     '<tr class="ui-datepicker-title-row">' +
     (showWeeks ? '<td' + this._addStatus(showStatus, inst.id, weekStatus, initStatus) + '>' +
     this._get(inst, 'weekHeader') + '</td>' : '');
    for (var dow = 0; dow < 7; dow++) { // days of the week
     var day = (dow + firstDay) % 7;
     var dayStatus = (status.indexOf('DD') > -1 ? status.replace(/DD/, dayNames[day]) :
      status.replace(/D/, dayNamesShort[day]));
     html += '<td' + ((dow + firstDay + 6) % 7 >= 5 ? ' class="ui-datepicker-week-end-cell"' : '') + '>' +
      (!changeFirstDay ? '<span' :
      '<a onclick="jQuery.datepicker._changeFirstDay(\'#' + inst.id + '\', ' + day + ');"') + 
      this._addStatus(showStatus, inst.id, dayStatus, initStatus) + ' title="' + dayNames[day] + '">' +
      dayNamesMin[day] + (changeFirstDay ? '</a>' : '</span>') + '</td>';
    }
    html += '</tr></thead><tbody>';
    var daysInMonth = this._getDaysInMonth(drawYear, drawMonth);
    if (drawYear == inst.selectedYear && drawMonth == inst.selectedMonth)
     inst.selectedDay = Math.min(inst.selectedDay, daysInMonth);
    var leadDays = (this._getFirstDayOfMonth(drawYear, drawMonth) - firstDay + 7) % 7;
    var tzDate = new Date(drawYear, drawMonth, 1 - leadDays);
    var utcDate = new Date(drawYear, drawMonth, 1 - leadDays);
    var printDate = utcDate;
    var numRows = (isMultiMonth ? 6 : Math.ceil((leadDays + daysInMonth) / 7)); // calculate the number of rows to generate
    for (var dRow = 0; dRow < numRows; dRow++) { // create date picker rows
     html += '<tr class="ui-datepicker-days-row">' +
      (showWeeks ? '<td class="ui-datepicker-week-col"' +
      this._addStatus(showStatus, inst.id, weekStatus, initStatus) + '>' +
      calculateWeek(printDate) + '</td>' : '');
     for (var dow = 0; dow < 7; dow++) { // create date picker days
      var daySettings = (beforeShowDay ?
       beforeShowDay.apply((inst.input ? inst.input[0] : null), [printDate]) : [true, '']);
      var otherMonth = (printDate.getMonth() != drawMonth);
      var unselectable = otherMonth || !daySettings[0] ||
       (minDate && printDate < minDate) || (maxDate && printDate > maxDate);
      html += '<td class="ui-datepicker-days-cell' +
       ((dow + firstDay + 6) % 7 >= 5 ? ' ui-datepicker-week-end-cell' : '') + // highlight weekends
       (otherMonth ? ' ui-datepicker-other-month' : '') + // highlight days from other months
       (printDate.getTime() == selectedDate.getTime() && drawMonth == inst.selectedMonth ?
       ' ui-datepicker-days-cell-over' : '') + // highlight selected day
       (unselectable ? ' ' + this._unselectableClass : '') +  // highlight unselectable days
       (otherMonth && !showOtherMonths ? '' : ' ' + daySettings[1] + // highlight custom dates
       (printDate.getTime() >= currentDate.getTime() && printDate.getTime() <= endDate.getTime() ?  // in current range
       ' ' + this._currentClass : '') + // highlight selected day
       (printDate.getTime() == today.getTime() ? ' ui-datepicker-today' : '')) + '"' + // highlight today (if different)
       ((!otherMonth || showOtherMonths) && daySettings[2] ? ' title="' + daySettings[2] + '"' : '') + // cell title
       (unselectable ? (highlightWeek ? ' onmouseover="jQuery(this).parent().addClass(\'ui-datepicker-week-over\');"' + // highlight selection week
       ' onmouseout="jQuery(this).parent().removeClass(\'ui-datepicker-week-over\');"' : '') : // unhighlight selection week
       ' onmouseover="jQuery(this).addClass(\'ui-datepicker-days-cell-over\')' + // highlight selection
       (highlightWeek ? '.parent().addClass(\'ui-datepicker-week-over\')' : '') + ';' + // highlight selection week
       (!showStatus || (otherMonth && !showOtherMonths) ? '' : 'jQuery(\'#ui-datepicker-status-' +
       inst.id + '\').html(\'' + (dateStatus.apply((inst.input ? inst.input[0] : null),
       [printDate, inst]) || initStatus) +'\');') + '"' +
       ' onmouseout="jQuery(this).removeClass(\'ui-datepicker-days-cell-over\')' + // unhighlight selection
       (highlightWeek ? '.parent().removeClass(\'ui-datepicker-week-over\')' : '') + ';' + // unhighlight selection week
       (!showStatus || (otherMonth && !showOtherMonths) ? '' : 'jQuery(\'#ui-datepicker-status-' +
       inst.id + '\').html(\'' + initStatus + '\');') + '" onclick="jQuery.datepicker._selectDay(\'#' +
       inst.id + '\',' + drawMonth + ',' + drawYear + ', this);"') + '>' + // actions
       (otherMonth ? (showOtherMonths ? printDate.getDate() : '&#xa0;') : // display for other months
       (unselectable ? printDate.getDate() : '<a>' + printDate.getDate() + '</a>')) + '</td>'; // display for this month
      tzDate.setDate(tzDate.getDate() + 1);
      utcDate.setUTCDate(utcDate.getUTCDate() + 1);
      printDate = (tzDate > utcDate ? tzDate : utcDate);
     }
     html += '</tr>';
    }
    drawMonth++;
    if (drawMonth > 11) {
     drawMonth = 0;
     drawYear++;
    }
    html += '</tbody></table></div>';
   }
  html += (showStatus ? '<div style="clear: both;"></div><div id="ui-datepicker-status-' + inst.id + 
   '" class="ui-datepicker-status">' + initStatus + '</div>' : '') +
   (!closeAtTop && !inst.inline ? controls : '') +
   '<div style="clear: both;"></div>' + 
   ($.browser.msie && parseInt($.browser.version) < 7 && !inst.inline ? 
   '<iframe src="javascript:false;" class="ui-datepicker-cover"></iframe>' : '');
  return html;
 },
 
 /* Generate the month and year header. */
 _generateMonthYearHeader: function(inst, drawMonth, drawYear, minDate, maxDate,
   selectedDate, secondary, showStatus, initStatus, monthNames) {
  minDate = (inst.rangeStart && minDate && selectedDate < minDate ? selectedDate : minDate);
  var showMonthAfterYear = this._get(inst, 'showMonthAfterYear');
  var html = '<div class="ui-datepicker-header">';
  var monthHtml = '';
  // month selection
  if (secondary || !this._get(inst, 'changeMonth'))
   monthHtml += monthNames[drawMonth] + '&#xa0;';
  else {
   var inMinYear = (minDate && minDate.getFullYear() == drawYear);
   var inMaxYear = (maxDate && maxDate.getFullYear() == drawYear);
   monthHtml += '<select class="ui-datepicker-new-month" ' +
    'onchange="jQuery.datepicker._selectMonthYear(\'#' + inst.id + '\', this, \'M\');" ' +
    'onclick="jQuery.datepicker._clickMonthYear(\'#' + inst.id + '\');"' +
    this._addStatus(showStatus, inst.id, this._get(inst, 'monthStatus'), initStatus) + '>';
   for (var month = 0; month < 12; month++) {
    if ((!inMinYear || month >= minDate.getMonth()) &&
      (!inMaxYear || month <= maxDate.getMonth()))
     monthHtml += '<option value="' + month + '"' +
      (month == drawMonth ? ' selected="selected"' : '') +
      '>' + monthNames[month] + '</option>';
   }
   monthHtml += '</select>';
  }
  if (!showMonthAfterYear)
   html += monthHtml;
  // year selection
  if (secondary || !this._get(inst, 'changeYear'))
   html += drawYear;
  else {
   // determine range of years to display
   var years = this._get(inst, 'yearRange').split(':');
   var year = 0;
   var endYear = 0;
   if (years.length != 2) {
    year = drawYear - 10;
    endYear = drawYear + 10;
   } else if (years[0].charAt(0) == '+' || years[0].charAt(0) == '-') {
    year = endYear = new Date().getFullYear();
    year += parseInt(years[0], 10);
    endYear += parseInt(years[1], 10);
   } else {
    year = parseInt(years[0], 10);
    endYear = parseInt(years[1], 10);
   }
   year = (minDate ? Math.max(year, minDate.getFullYear()) : year);
   endYear = (maxDate ? Math.min(endYear, maxDate.getFullYear()) : endYear);
   html += '<select class="ui-datepicker-new-year" ' +
    'onchange="jQuery.datepicker._selectMonthYear(\'#' + inst.id + '\', this, \'Y\');" ' +
    'onclick="jQuery.datepicker._clickMonthYear(\'#' + inst.id + '\');"' +
    this._addStatus(showStatus, inst.id, this._get(inst, 'yearStatus'), initStatus) + '>';
   for (; year <= endYear; year++) {
    html += '<option value="' + year + '"' +
     (year == drawYear ? ' selected="selected"' : '') +
     '>' + year + '</option>';
   }
   html += '</select>';
  }
  if (showMonthAfterYear)
   html += monthHtml;
  html += '</div>'; // Close datepicker_header
  return html;
 },
 /* Provide code to set and clear the status panel. */
 _addStatus: function(showStatus, id, text, initStatus) {
  return (showStatus ? ' onmouseover="jQuery(\'#ui-datepicker-status-' + id +
   '\').html(\'' + (text || initStatus) + '\');" ' +
   'onmouseout="jQuery(\'#ui-datepicker-status-' + id +
   '\').html(\'' + initStatus + '\');"' : '');
 },
 /* Adjust one of the date sub-fields. */
 _adjustInstDate: function(inst, offset, period) {
  var year = inst.drawYear + (period == 'Y' ? offset : 0);
  var month = inst.drawMonth + (period == 'M' ? offset : 0);
  var day = Math.min(inst.selectedDay, this._getDaysInMonth(year, month)) +
   (period == 'D' ? offset : 0);
  var date = new Date(year, month, day);
  // ensure it is within the bounds set
  var minDate = this._getMinMaxDate(inst, 'min', true);
  var maxDate = this._getMinMaxDate(inst, 'max');
  date = (minDate && date < minDate ? minDate : date);
  date = (maxDate && date > maxDate ? maxDate : date);
  inst.selectedDay = date.getDate();
  inst.drawMonth = inst.selectedMonth = date.getMonth();
  inst.drawYear = inst.selectedYear = date.getFullYear();
  if (period == 'M' || period == 'Y')
   this._notifyChange(inst);
 },
 /* Notify change of month/year. */
 _notifyChange: function(inst) {
  var onChange = this._get(inst, 'onChangeMonthYear');
  if (onChange)
   onChange.apply((inst.input ? inst.input[0] : null),
    [new Date(inst.selectedYear, inst.selectedMonth, 1), inst]);
 },
 
 /* Determine the number of months to show. */
 _getNumberOfMonths: function(inst) {
  var numMonths = this._get(inst, 'numberOfMonths');
  return (numMonths == null ? [1, 1] : (typeof numMonths == 'number' ? [1, numMonths] : numMonths));
 },
 /* Determine the current maximum date - ensure no time components are set - may be overridden for a range. */
 _getMinMaxDate: function(inst, minMax, checkRange) {
  var date = this._determineDate(this._get(inst, minMax + 'Date'), null);
  if (date) {
   date.setHours(0);
   date.setMinutes(0);
   date.setSeconds(0);
   date.setMilliseconds(0);
  }
  return (!checkRange || !inst.rangeStart ? date :
   (!date || inst.rangeStart > date ? inst.rangeStart : date));
 },
 /* Find the number of days in a given month. */
 _getDaysInMonth: function(year, month) {
  return 32 - new Date(year, month, 32).getDate();
 },
 /* Find the day of the week of the first of a month. */
 _getFirstDayOfMonth: function(year, month) {
  return new Date(year, month, 1).getDay();
 },
 /* Determines if we should allow a "next/prev" month display change. */
 _canAdjustMonth: function(inst, offset, curYear, curMonth) {
  var numMonths = this._getNumberOfMonths(inst);
  var date = new Date(curYear, curMonth + (offset < 0 ? offset : numMonths[1]), 1);
  if (offset < 0)
   date.setDate(this._getDaysInMonth(date.getFullYear(), date.getMonth()));
  return this._isInRange(inst, date);
 },
 /* Is the given date in the accepted range? */
 _isInRange: function(inst, date) {
  // during range selection, use minimum of selected date and range start
  var newMinDate = (!inst.rangeStart ? null :
   new Date(inst.selectedYear, inst.selectedMonth, inst.selectedDay));
  newMinDate = (newMinDate && inst.rangeStart < newMinDate ? inst.rangeStart : newMinDate);
  var minDate = newMinDate || this._getMinMaxDate(inst, 'min');
  var maxDate = this._getMinMaxDate(inst, 'max');
  return ((!minDate || date >= minDate) && (!maxDate || date <= maxDate));
 },
 
 /* Provide the configuration settings for formatting/parsing. */
 _getFormatConfig: function(inst) {
  var shortYearCutoff = this._get(inst, 'shortYearCutoff');
  shortYearCutoff = (typeof shortYearCutoff != 'string' ? shortYearCutoff :
   new Date().getFullYear() % 100 + parseInt(shortYearCutoff, 10));
  return {shortYearCutoff: shortYearCutoff,
   dayNamesShort: this._get(inst, 'dayNamesShort'), dayNames: this._get(inst, 'dayNames'),
   monthNamesShort: this._get(inst, 'monthNamesShort'), monthNames: this._get(inst, 'monthNames')};
 },
 /* Format the given date for display. */
 _formatDate: function(inst, day, month, year) {
  if (!day) {
   inst.currentDay = inst.selectedDay;
   inst.currentMonth = inst.selectedMonth;
   inst.currentYear = inst.selectedYear;
  }
  var date = (day ? (typeof day == 'object' ? day : new Date(year, month, day)) :
   new Date(inst.currentYear, inst.currentMonth, inst.currentDay));
  return this.formatDate(this._get(inst, 'dateFormat'), date, this._getFormatConfig(inst));
 }
});
/* jQuery extend now ignores nulls! */
function extendRemove(target, props) {
 $.extend(target, props);
 for (var name in props)
  if (props[name] == null || props[name] == undefined)
   target[name] = props[name];
 return target;
};
/* Determine whether an object is an array. */
function isArray(a) {
 return (a && (($.browser.safari && typeof a == 'object' && a.length) ||
  (a.constructor && a.constructor.toString().match(/\Array\(\)/))));
};
/* Invoke the datepicker functionality.
   @param  options  string - a command, optionally followed by additional parameters or
                    Object - settings for attaching new datepicker functionality
   @return  jQuery object */
$.fn.datepicker = function(options){
 
 /* Initialise the date picker. */
 if (!$.datepicker.initialized) {
  $(document.body).append($.datepicker.dpDiv).
   mousedown($.datepicker._checkExternalClick);
  $.datepicker.initialized = true;
 }
 
 var otherArgs = Array.prototype.slice.call(arguments, 1);
 if (typeof options == 'string' && (options == 'isDisabled' || options == 'getDate'))
  return $.datepicker['_' + options + 'Datepicker'].
   apply($.datepicker, [this[0]].concat(otherArgs));
 return this.each(function() {
  typeof options == 'string' ?
   $.datepicker['_' + options + 'Datepicker'].
    apply($.datepicker, [this].concat(otherArgs)) :
   $.datepicker._attachDatepicker(this, options);
 });
};
$.datepicker = new Datepicker(); // singleton instance
$.datepicker.initialized = false;
$.datepicker.uuid = new Date().getTime();
})(jQuery);
//-->
//-->