pandorafms/pandora_console/include/javascript/calendar.js

// *****************************************************************************
//      Simple Calendar Widget - Cross-Browser Javascript pop-up calendar.
//
//   Copyright (C) 2005-2006  Anthony Garrett
//
//   This library is free software; you can redistribute it and/or
//   modify it under the terms of the GNU Lesser General Public
//   License as published by the Free Software Foundation; either
//   version 2.1 of the License, or (at your option) any later version.
//
//   This library is distributed in the hope that it will be useful,
//   but WITHOUT ANY WARRANTY; without even the implied warranty of
//   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
//   Lesser General Public License for more details.
//
//   You should have received a copy of the GNU Lesser General Public
//   License along with this library; if not, it is available at
//   the GNU web site (http://www.gnu.org/) or by writing to the
//   Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
//   Boston, MA  02110-1301  USA
//
// *****************************************************************************
//
// Contact:   Sorry, I can't offer support for this but if you find a problem
//            (or just want to tell me how useful you find it), please send
//            me an email at scwfeedback@tarrget.info (Note the two Rs in
//            tarrget).  I will try to fix problems quickly but this is a
//            spare time thing for me.
//
// Credits:   I wrote this from scratch myself but I couldn't have done it
//            without the superb "JavaScript The Definitive Guide" by David
//            Flanagan (Pub. O'Reilly ISBN 0-596-00048-0).  I also recognise
//            a contribution from my experience with PopCalendar 4.1 by
//            Liming(Victor) Weng.
//
// Link back: Please give me credit and link back to my page.  To ensure that
//            search engines give my page a higher ranking you can add the
//            following HTML to any indexed page on your web site:
//
//            <A HREF="http://www.tarrget.info/calendar/scw.htm">
//              Simple Calendar Widget by Anthony Garrett
//            </A>
//
// Features:  Easily customised
//                  (output date format, colours, language, year range and
//                   week start day)
//            Accepts a date as input
//                  (see comments below for formats).
//            Cross-browser code tested against;
//                  Internet Explorer 6.0.28     Mozilla  1.7.1
//                  Opera             7.52+      Firefox  0.9.1+
//                  Konqueror         3.4.0      Flock    0.4.9
//
// How to add the Calendar to your page:
//            This script needs to be defined for your page so, immediately
//            after the BODY tag add the following line;
//
//                  <script type='Text/JavaScript' src='scw.js'></script>
//
//            Your root directory of the web site should also contain an empty
//            file called "scwblank.html". See
//                  http://www.tarrget.info/calendar/IEnightmare.html
//            for a full explanation.
//
// How to use the Calendar once it is defined for your page:
//
//            Simply choose an event to trigger the calendar (like an onClick
//            or an onMouseOver) and an element to work on (for the calendar
//            to take its initial date from and write its output date to) then
//            write it like this;
//
//                  <<event>>="scwShow(<<element>>,this);"
//
//            e.g. onClick="scwShow(scwID('myElement'),this);"
//            or   onMouseOver="scwShow(this,this);"
//
//            NOTE: The "this" keyword causes the script to fail when the
//                  triggered calendar is using an anchor tag. The following
//                  syntax works;
//
//                  <a id="<<ID>>"
//                     href="javascript:
//                              scwShow(<<element>>,scwID('<<ID>>'));">
//                      <<your text>>
//                  </a>
//
//            If you are using a text node then specify the text's parent node
//            in the function call. The date should be the only text under that
//            node;
//
//            e.g.  <p onclick="scwShow(this,this);"><<date>></p>
//
//            You can also disable days of the week by adding arguments to the
//            call to scwShow.  The values should be Sunday = 0 through to
//            Saturday = 6.  A call to scwShow with Friday and Monday disabled
//            would look something like this;
//
//                  scwShow(<<element>>,this,5,1);
//
//            Finally you can use the following technique to run a function
//            when the calendar closes:
//
//                  scwNextAction=<<function>>.runsAfterSCW(this,<<arguments>>);
//                  scwShow(<<element>>,this <<,optional arguments above>>);
//
//            Where <<function>> is a function defined on the calling page
//            and <<arguments>> is the list of arguments being passed to that
//            function.
//
//            ------------------------------------------------------------------
//            Here's an extremely trivial but fully functioning example page
//            showing two of the ways to trigger the calendar;
//
//            <html>
//                <head><title>Basic Example</title></head>
//                <body>
//                    <script type='text/JavaScript' src='scw.js'></script>
//                    <p onclick='scwShow(this,this);'>06-Dec-2006</p>
//                    <input onclick='scwShow(this,this);' value='07-Dec-2006' />
//                    <br/><br/>
//                    <a id='aTest'
//                       href='javascript:scwShow(scwID("aTest"),this);'>
//                        08-Dec-2006
//                    </a>
//                </body>
//            </html>
//
// *****************************************************************************
//
// See http://www.tarrget.info/calendar/scw.htm for a complete version history
//
// Version   Date        By               Description
// =======   ====        ===============  ===========
//   3.58    2007-04-04  Anthony Garrett  Resolved an error caused when the date
//                                        range does not include the current year.
//                                        Thanks to Steve Davis for letting me know.
//
//                                        Fixed "Today" selector display which
//                                        was incorrectly visible when year range 
//								          ended last year. (Also the result of 
//								          investigations based on Steve Davis'
//								          feedback).
// *****************************************************************************

// ************************************
// Start of Simple Calendar Widget Code
// ************************************

// This date is used throughout to determine today's date.

var scwDateNow = new Date(Date.parse(new Date().toDateString()));

//******************************************************************************
//------------------------------------------------------------------------------
// Customisation section
//------------------------------------------------------------------------------
//******************************************************************************

// Set the bounds for the calendar here...
// If you want the year to roll forward you can use something like this...
//      var scwBaseYear = scwDateNow.getFullYear()-5;
// alternatively, hard code a date like this...
//      var scwBaseYear = 1990;

var scwBaseYear = scwDateNow.getFullYear() - 5;

// How many years do want to be valid and to show in the drop-down list?

var scwDropDownYears = 10;

// All language-dependent changes can be made here...

// If you wish to work in a single language (other than English) then
// just replace the English (in the function scwSetLanguage below) with
// your own text.

// Using multiple languages:
// In order to keep this script to a resonable size I have not included
// languages here.  You can set language fields in a function that you
// should call  scwSetLanguage  the script will use your languages.
// I have included all the translations that have been sent to me in
// such a function on the demonstration page.

var scwLanguage;

function scwSetDefaultLanguage() {
   try { scwSetLanguage(); }
   catch (exception) {// English
      scwToday = 'Today:';
      scwDrag = 'click here to drag';
      scwArrMonthNames = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
         'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
      scwArrWeekInits = ['S', 'M', 'T', 'W', 'T', 'F', 'S'];
      scwInvalidDateMsg = 'The entered date is invalid.\n';
      scwOutOfRangeMsg = 'The entered date is out of range.';
      scwDoesNotExistMsg = 'The entered date does not exist.';
      scwInvalidAlert = ['Invalid date (', ') ignored.'];
      scwDateDisablingError = ['Error ', ' is not a Date object.'];
      scwRangeDisablingError = ['Error ',
         ' should consist of two elements.'];
   }
}

// Note:  Always start the scwArrWeekInits array with your string for
//        Sunday whatever scwWeekStart (below) is set to.

// scwWeekStart determines the start of the week in the display
// Set it to: 0 (Zero) for Sunday, 1 (One) for Monday etc..

var scwWeekStart = 1;

// The week start day for the display is taken as the week start
// for week numbering.  This ensures that only one week number
// applies to one line of the calendar table.
// [ISO 8601 begins the week with Day 1 = Monday.]

// If you want to see week numbering on the calendar, set
// this to true.  If not, false.

var scwWeekNumberDisplay = false;

// Week numbering rules are generally based on a day in the week
// that determines the first week of the year.  ISO 8601 uses
// Thursday (day four when Sunday is day zero).  You can alter
// the base day here.

// See http://www.cl.cam.ac.uk/~mgk25/iso-time.html for more information

var scwWeekNumberBaseDay = 4;

// Each of the calendar's alert message types can be disabled
// independently here.

var scwShowInvalidDateMsg = true,
   scwShowOutOfRangeMsg = true,
   scwShowDoesNotExistMsg = true,
   scwShowInvalidAlert = true,
   scwShowDateDisablingError = true,
   scwShowRangeDisablingError = true;

// Set the allowed input date delimiters here...
// E.g. To set the rising slash, hyphen, full-stop (aka stop or point),
//      comma and space as delimiters use
//              var scwArrDelimiters   = ['/','-','.',',',' '];

var scwArrDelimiters = ['/', '-', '.', ',', ' '];

// Set the format for the displayed 'Today' date and for the output
// date here.
//
// The format is described using delimiters of your choice (as set
// in scwArrDelimiters above) and case insensitive letters D, M and Y.
//
// Definition               Returns
// ----------               -------
// D            date in the month without zero filling
// DD           date in the month left zero filled
// M            month number without zero filling
// MM           month number left zero filled
// MMM          month string from scwArrMonthNames
// YY           year number in two digits
// YYYY         year number in four digits

// Displayed "Today" date format

//var scwDateDisplayFormat = 'dd-mm-yy';     // e.g. 'MMM-DD-YYYY' for the US
var scwDateDisplayFormat = 'yyyy-mm-dd';     // e.g. 'MMM-DD-YYYY' for the US

// Output date format

//var scwDateOutputFormat  = 'DD MMM, YYYY'; // e.g. 'MMM-DD-YYYY' for the US
var scwDateOutputFormat = 'YYYY-MM-DD'; // e.g. 'MMM-DD-YYYY' for the US

// The input date is fully parsed so a format is not required,
// but there is no way to differentiate the sequence reliably.
//
// e.g. Is 05/08/03     5th August 2003,
//                      8th May    2003 or even
//                      3rd August 2005?
//
// So, you have to state how the code should interpret input dates.
//
// The sequence should always contain one D, one M and one Y only,
// in any order.

//var scwDateInputSequence = 'DMY';           // e.g. 'MDY' for the US
var scwDateInputSequence = 'YMD';           // e.g. 'MDY' for the US

// Note: Because the user may select a date then trigger the
//       calendar again to select another, it is necessary to
//       have the input date sequence in the same order as the
//       output display format.  To allow the flexibility of having
//       a full input date and a partial (e.g. only Month and Year)
//       output, the input sequence is set separately.
//
//       The same reason determines that the delimiters used should
//       be in scwArrDelimiters.

// scwZindex controls how the pop-up calendar interacts with the rest
// of the page.  It is usually adequate to leave it as 1 (One) but I
// have made it available here to help anyone who needs to alter the
// level in order to ensure that the calendar displays correctly in
// relation to all other elements on the page.

var scwZindex = 1;

// Personally I like the fact that entering 31-Sep-2005 displays
// 1-Oct-2005, however you may want that to be an error.  If so,
// set scwBlnStrict = true.  That will cause an error message to
// display and the selected month is displayed without a selected
// day. Thanks to Brad Allan for his feedback prompting this feature.

var scwBlnStrict = false;

// If you wish to disable any displayed day, e.g. Every Monday,
// you can do it by setting the following array.  The array elements
// match the displayed cells.
//
// You could put something like the following in your calling page
// to disable all weekend days;
//
//  for (var i=0;i<scwEnabledDay.length;i++)
//      {if (i%7%6==0) scwEnabledDay[i] = false;}
//
// The above approach will allow you to disable days of the week
// for the whole of your page easily.  If you need to set different
// disabled days for a number of date input fields on your page
// there is an easier way: You can pass additional arguments to
// scwShow. The syntax is described at the top of this script in
// the section:
//    "How to use the Calendar once it is defined for your page:"
//
// It is possible to use these two approaches in combination.

var scwEnabledDay = [true, true, true, true, true, true, true,
   true, true, true, true, true, true, true,
   true, true, true, true, true, true, true,
   true, true, true, true, true, true, true,
   true, true, true, true, true, true, true,
   true, true, true, true, true, true, true];

// You can disable any specific date (e.g. 24-Jan-2006 or Today) by
// creating an element of the array scwDisabledDates as a date object
// with the value you want to disable.  Date ranges can be disabled
// by placing an array of two values (Start and End) into an element
// of this array.

var scwDisabledDates = new Array();

// e.g. To disable 10-Dec-2005:
//          scwDisabledDates[0] = new Date(2005,11,10);
//
//      or a range from 2004-Dec-25 to 2005-Jan-01:
//          scwDisabledDates[1] = [new Date(2004,11,25),new Date(2005,0,1)];
//
// Remember that Javascript months are Zero-based.

// The disabling by date and date range does prevent the current day
// from being selected.  Disabling days of the week does not so you can set
// the scwActiveToday value to false to prevent selection.

var scwActiveToday = true;

// Dates that are out of the displayed month are shown at the start
// (unless the month starts on the first day of the week) and end of each
// month.
//
// Set scwOutOfMonthDisable to  true  to disable these dates (or  false
// to allow their selection).
//
// Set scwOutOfMonthHide    to  true  to hide    these dates (or  false
// to make them visible).

var scwOutOfMonthDisable = false;
var scwOutOfMonthHide = false;

// Dates that are out of the specified range can be displayed at the start
// of the very first month and end of the very last.  Set
// scwOutOfRangeDisable to  true  to disable these dates (or  false  to
// allow their selection).

var scwOutOfRangeDisable = true;

// If you want a special format for the cell that contains the current day
// set this to true.  This sets a thin border around the cell in the colour
// set by scwTodayCellBorderColour.

var scwFormatTodayCell = true;
var scwTodayCellBorderColour = 'red';

// You can allow the calendar to be dragged around the screen by
// using the setting scwAllowDrag to true.
// I can't say I recommend it because of the danger of the user
// forgetting which date field the calendar will update when there
// are multiple date fields on a page.

var scwAllowDrag = false;

// Closing the calendar by clicking on it (rather than elsewhere on the
// main page) can be inconvenient.  The scwClickToHide boolean value
// controls this feature.

var scwClickToHide = false;

// I have made every effort to isolate the pop-up script from any
// CSS defined on the main page but if you have anything set that
// affects the pop-up (or you may want to change the way it looks)
// then you can address it in the following style sheets.

document.writeln(
   '<style type="text/css">' +
   '.scw           {padding:1px;vertical-align:middle;}' +
   'iframe.scw     {position:absolute;z-index:' + scwZindex +
   ';top:0px;left:0px;visibility:hidden;' +
   'width:1px;height:1px;}' +
   'table.scw      {padding:0px;visibility:hidden;' +
   'position:absolute;cursor:default;' +
   'width:200px;top:0px;left:0px;' +
   'z-index:' + (scwZindex + 1) +
   ';text-align:center;}' +
   '</style>');

// This style sheet can be extracted from the script and edited into regular
// CSS (by removing all occurrences of + and '). That can be used as the
// basis for themes. Classes are described in comments within the style
// sheet.

document.writeln(
   '<style type="text/css">' +
   '/* IMPORTANT:  The SCW calendar script requires all ' +
   '               the classes defined here.' +
   '*/' +
   'table.scw      {padding:       1px;' +
   'vertical-align:middle;' +
   'border:        ridge 2px;' +
   'font-size:     10pt;' +
   'font-weight:   bold;}' +
   'td.scwDrag,' +
   'td.scwHead                 {padding:       0px 0px;' +
   'text-align:    center;}' +
   'td.scwDrag                 {font-size:     8pt;}' +
   'select.scwHead             {margin:        3px 1px;' +
   'text-align:    center;}' +
   'input.scwHead              {height:        22px;' +
   'width:         22px;' +
   'vertical-align:middle;' +
   'text-align:    center;' +
   'margin:        2px 1px;' +
   'font-weight:   bold;' +
   'font-size:     10pt;' +
   'font-family:   lato;}' +
   'td.scwWeekNumberHead,' +
   'td.scwWeek                 {padding:       0px;' +
   'text-align:    center;' +
   'font-weight:   bold;}' +
   'td.scwFoot,' +
   'td.scwFootHover,' +
   'td.scwFoot:hover,' +
   'td.scwFootDisabled         {padding:       0px;' +
   'text-align:    center;' +
   'font-weight:   normal;}' +
   'table.scwCells             {text-align:    right;' +
   'font-size:     8pt;' +
   'width:         96%;}' +
   'td.scwCells,' +
   'td.scwCellsHover,' +
   'td.scwCells:hover,' +
   'td.scwCellsDisabled,' +
   'td.scwCellsExMonth,' +
   'td.scwCellsExMonthHover,' +
   'td.scwCellsExMonth:hover,' +
   'td.scwCellsExMonthDisabled,' +
   'td.scwCellsWeekend,' +
   'td.scwCellsWeekendHover,' +
   'td.scwCellsWeekend:hover,' +
   'td.scwCellsWeekendDisabled,' +
   'td.scwInputDate,' +
   'td.scwInputDateHover,' +
   'td.scwInputDate:hover,' +
   'td.scwInputDateDisabled,' +
   'td.scwWeekNo,' +
   'td.scwWeeks                {padding:           3px;' +
   'width:             16px;' +
   'height:            16px;' +
   'border-width:      1px;' +
   'border-style:      solid;' +
   'font-weight:       bold;' +
   'vertical-align:    middle;}' +
   '/* Blend the colours into your page here...    */' +
   '/* Drag Handle */' +
   'td.scwDrag                 {background-color:  #9999CC;' +
   'color:             #CCCCFF;}' +
   '/* Week day headings */' +
   'td.scwWeek                 {color:             #CCCCCC;}' +
   '/* Week numbers */' +
   'td.scwWeekNo               {background-color:  #776677;' +
   'color:             #CCCCCC;}' +
   '/* Enabled Days */' +
   '/* Week Day */' +
   'td.scwCells                {background-color:  #CCCCCC;' +
   'color:             #000000;}' +
   '/* Day matching the input date */' +
   'td.scwInputDate            {background-color:  #CC9999;' +
   'color:             #FF0000;}' +
   '/* Weekend Day */' +
   'td.scwCellsWeekend         {background-color:  #CCCCCC;' +
   'color:             #CC6666;}' +
   '/* Day outside the current month */' +
   'td.scwCellsExMonth         {background-color:  #CCCCCC;' +
   'color:             #666666;}' +
   '/* MouseOver/Hover formatting ' +
   '       If you want to "turn off" any of the formatting ' +
   '       then just set to the same as the standard format' +
   '       above.' +
   ' ' +
   '       Note: The reason that the following are' +
   '       implemented using both a class and a :hover' +
   '       pseudoclass is because Opera handles the rendering' +
   '       involved in the class swap very poorly and IE6 ' +
   '       (and below) only implements pseudoclasses on the' +
   '       anchor tag.' +
   '*/' +
   '/* Active cells */' +
   'td.scwCells:hover,' +
   'td.scwCellsHover           {background-color:  #FFFF00;' +
   'cursor:            pointer;' +
   'cursor:            hand;' +
   'color:             #000000;}' +
   '/* Day matching the input date */' +
   'td.scwInputDate:hover,' +
   'td.scwInputDateHover       {background-color:  #FFFF00;' +
   'cursor:            pointer;' +
   'cursor:            hand;' +
   'color:             #000000;}' +
   '/* Weekend cells */' +
   'td.scwCellsWeekend:hover,' +
   'td.scwCellsWeekendHover    {background-color:  #FFFF00;' +
   'cursor:            pointer;' +
   'cursor:            hand;' +
   'color:             #000000;}' +
   '/* Day outside the current month */' +
   'td.scwCellsExMonth:hover,' +
   'td.scwCellsExMonthHover    {background-color:  #FFFF00;' +
   'cursor:            pointer;' +
   'cursor:            hand;' +
   'color:             #000000;}' +
   '/* Today selector */' +
   'td.scwFoot:hover,' +
   'td.scwFootHover            {color:             #FFFF00;' +
   'cursor:            pointer;' +
   'cursor:            hand;' +
   'font-weight:       bold;}' +
   '/* Disabled cells */' +
   '/* Week Day */' +
   '/* Day matching the input date */' +
   'td.scwInputDateDisabled    {background-color:  #999999;' +
   'color:             #000000;}' +
   'td.scwCellsDisabled        {background-color:  #999999;' +
   'color:             #000000;}' +
   '/* Weekend Day */' +
   'td.scwCellsWeekendDisabled {background-color:  #999999;' +
   'color:             #CC6666;}' +
   '/* Day outside the current month */' +
   'td.scwCellsExMonthDisabled {background-color:  #999999;' +
   'color:             #666666;}' +
   '</style>'
);

//******************************************************************************
//------------------------------------------------------------------------------
// End of customisation section
//------------------------------------------------------------------------------
//******************************************************************************

//  Variables required by both scwShow and scwShowMonth

var scwTargetEle,
   scwTriggerEle,
   scwMonthSum = 0,
   scwBlnFullInputDate = false,
   scwPassEnabledDay = new Array(),
   scwSeedDate = new Date(),
   scwParmActiveToday = true,
   scwWeekStart = scwWeekStart % 7,
   scwToday,
   scwDrag,
   scwArrMonthNames,
   scwArrWeekInits,
   scwInvalidDateMsg,
   scwOutOfRangeMsg,
   scwDoesNotExistMsg,
   scwInvalidAlert,
   scwDateDisablingError,
   scwRangeDisablingError;

// Add a method to format a date into the required pattern

Date.prototype.scwFormat =
   function (scwFormat) {
      var charCount = 0,
         codeChar = '',
         result = '';

      for (var i = 0; i <= scwFormat.length; i++) {
         if (i < scwFormat.length && scwFormat.charAt(i) == codeChar) {// If we haven't hit the end of the string and
            // the format string character is the same as
            // the previous one, just clock up one to the
            // length of the current element definition
            charCount++;
         }
         else {
            switch (codeChar) {
               case 'y': case 'Y':
                  result += (this.getFullYear() % Math.
                     pow(10, charCount)).toString().
                     scwPadLeft(charCount);
                  break;
               case 'm': case 'M':
                  // If we find an M, check the number of them to
                  // determine whether to get the month number or
                  // the month name.
                  result += (charCount < 3)
                     ? (this.getMonth() + 1).
                        toString().scwPadLeft(charCount)
                     : scwArrMonthNames[this.getMonth()];
                  break;
               case 'd': case 'D':
                  // If we find a D, get the date and format it
                  result += this.getDate().toString().
                     scwPadLeft(charCount);
                  break;
               default:
                  // Copy any unrecognised characters across
                  while (charCount-- > 0) { result += codeChar; }
            }

            if (i < scwFormat.length) {// Store the character we have just worked on
               codeChar = scwFormat.charAt(i);
               charCount = 1;
            }
         }
      }
      return result;
   };

// Add a method to left pad zeroes

String.prototype.scwPadLeft =
   function (padToLength) {
      var result = '';
      for (var i = 0; i < (padToLength - this.length); i++) { result += '0'; }
      return (result + this);
   };

// Set up a closure so that any next function can be triggered
// after the calendar has been closed AND that function can take
// arguments.

Function.prototype.runsAfterSCW =
   function () {
      var func = this,
         args = new Array(arguments.length);

      for (var i = 0; i < args.length; ++i) { args[i] = arguments[i]; }

      return function () {// concat/join the two argument arrays
         for (var i = 0; i < arguments.length; ++i) { args[args.length] = arguments[i]; }

         return (args.shift() == scwTriggerEle)
            ? func.apply(this, args) : null;
      };
   };

// Set up some shortcuts

function scwID(id) { return document.getElementById(id); }

// Use a global variable for the return value from the next action
// IE fails to pass the function through if the target element is in
// a form and scwNextAction is not defined.

var scwNextActionReturn, scwNextAction;

// ****************************************************************************
// Start of Function Library
//
//  Exposed functions:
//
//      scwShow             Entry point for display of calendar,
//                              called in main page.
//      showCal             Legacy name of scwShow:
//                              Passes only legacy arguments,
//                              not the optional day disabling arguments.
//
//      scwShowMonth        Displays a month on the calendar,
//                              Called when a month is set or changed.
//
//      scwBeginDrag        Controls calendar dragging.
//
//      scwCancel           Called when the calendar background is clicked:
//                              Calls scwStopPropagation and may call scwHide.
//      scwHide             Hides the calendar, called on various events.
//      scwStopPropagation  Stops the propagation of an event.
//
// ****************************************************************************

function showCal(scwEle, scwSourceEle) { scwShow(scwEle, scwSourceEle); }
function scwShow(scwEle, scwSourceEle) {
   scwTriggerEle = scwSourceEle;

   // Take any parameters that there might be from the third onwards as
   // day numbers to be disabled 0 = Sunday through to 6 = Saturday.

   scwParmActiveToday = true;

   for (var i = 0; i < 7; i++) {
      scwPassEnabledDay[(i + 7 - scwWeekStart) % 7] = true;
      for (var j = 2; j < arguments.length; j++) {
         if (arguments[j] == i) {
            scwPassEnabledDay[(i + 7 - scwWeekStart) % 7] = false;
            if (scwDateNow.getDay() == i) scwParmActiveToday = false;
         }
      }
   }

   //   If no value is preset then the seed date is
   //      Today (when today is in range) OR
   //      The middle of the date range.

   scwSeedDate = scwDateNow;

   // Find the date and Strip space characters from start and
   // end of date input.

   if (typeof scwEle.value == 'undefined') {
      var scwChildNodes = scwEle.childNodes;
      for (var i = 0; i < scwChildNodes.length; i++)
         if (scwChildNodes[i].nodeType == 3) {
            var scwDateValue = scwChildNodes[i].nodeValue.replace(/^\s+/, '').replace(/\s+$/, '');
            if (scwDateValue.length > 0) {
               scwTriggerEle.scwTextNode = scwChildNodes[i];
               scwTriggerEle.scwLength = scwChildNodes[i].nodeValue.length;
               break;
            }
         }
   }
   else { var scwDateValue = scwEle.value.replace(/^\s+/, '').replace(/\s+$/, ''); }

   // Set the language-dependent elements

   scwSetDefaultLanguage();

   scwID('scwDragText').innerHTML = scwDrag;

   scwID('scwMonths').options.length = 0;
   for (var i = 0; i < scwArrMonthNames.length; i++)
      scwID('scwMonths').options[i] =
         new Option(scwArrMonthNames[i], scwArrMonthNames[i]);

   scwID('scwYears').options.length = 0;
   for (var i = 0; i < scwDropDownYears; i++)
      scwID('scwYears').options[i] =
         new Option((scwBaseYear + i), (scwBaseYear + i));

   for (var i = 0; i < scwArrWeekInits.length; i++)
      scwID('scwWeekInit' + i).innerHTML =
         scwArrWeekInits[(i + scwWeekStart) %
         scwArrWeekInits.length];

   if (scwID('scwFoot'))
      scwID('scwFoot').innerHTML =
         scwToday + ' ' +
         scwDateNow.scwFormat(scwDateDisplayFormat);

   if (scwDateValue.length == 0) {// If no value is entered and today is within the range,
      // use today's date, otherwise use the middle of the valid range.

      scwBlnFullInputDate = false;

      if ((new Date(scwBaseYear + scwDropDownYears, 0, 0)) < scwSeedDate ||
         (new Date(scwBaseYear, 0, 1)) > scwSeedDate
      ) {
         scwSeedDate = new Date(scwBaseYear +
            Math.floor(scwDropDownYears / 2), 5, 1);
      }
   }
   else {
      function scwInputFormat() {
         var scwArrSeed = new Array(),
            scwArrInput = scwDateValue.
               split(new RegExp('[\\' + scwArrDelimiters.
                  join('\\') + ']+', 'g'));

         // "Escape" all the user defined date delimiters above -
         // several delimiters will need it and it does no harm for
         // the others.

         // Strip any empty array elements (caused by delimiters)
         // from the beginning or end of the array. They will
         // still appear in the output string if in the output
         // format.

         if (scwArrInput[0] != null) {
            if (scwArrInput[0].length == 0) scwArrInput.splice(0, 1);

            if (scwArrInput[scwArrInput.length - 1].length == 0)
               scwArrInput.splice(scwArrInput.length - 1, 1);
         }

         scwBlnFullInputDate = false;

         switch (scwArrInput.length) {
            case 1:
               {// Year only entry
                  scwArrSeed[0] = parseInt(scwArrInput[0], 10);   // Year
                  scwArrSeed[1] = '6';                           // Month
                  scwArrSeed[2] = 1;                             // Day
                  break;
               }
            case 2:
               {// Year and Month entry
                  scwArrSeed[0] =
                     parseInt(scwArrInput[scwDateInputSequence.
                        replace(/D/i, '').
                        search(/Y/i)], 10);  // Year
                  scwArrSeed[1] = scwArrInput[scwDateInputSequence.
                     replace(/D/i, '').
                     search(/M/i)];      // Month
                  scwArrSeed[2] = 1;                             // Day
                  break;
               }
            case 3:
               {// Day Month and Year entry

                  scwArrSeed[0] =
                     parseInt(scwArrInput[scwDateInputSequence.
                        search(/Y/i)], 10);  // Year
                  scwArrSeed[1] = scwArrInput[scwDateInputSequence.
                     search(/M/i)];      // Month
                  scwArrSeed[2] =
                     parseInt(scwArrInput[scwDateInputSequence.
                        search(/D/i)], 10);  // Day

                  scwBlnFullInputDate = true;
                  break;
               }
            default:
               {// A stuff-up has led to more than three elements in
                  // the date.
                  scwArrSeed[0] = 0;     // Year
                  scwArrSeed[1] = 0;     // Month
                  scwArrSeed[2] = 0;     // Day
               }
         }

         // These regular expressions validate the input date format
         // to the following rules;
         //         Day   1-31 (optional zero on single digits)
         //         Month 1-12 (optional zero on single digits)
         //                     or case insensitive name
         //         Year  One, Two or four digits

         // Months names are as set in the language-dependent
         // definitions and delimiters are set just below there

         var scwExpValDay = new RegExp('^(0?[1-9]|[1-2][0-9]|3[0-1])$'),
            scwExpValMonth = new RegExp('^(0?[1-9]|1[0-2]|' +
               scwArrMonthNames.join('|') +
               ')$', 'i'),
            scwExpValYear = new RegExp('^([0-9]{1,2}|[0-9]{4})$');

         // Apply validation and report failures

         if (scwExpValYear.exec(scwArrSeed[0]) == null ||
            scwExpValMonth.exec(scwArrSeed[1]) == null ||
            scwExpValDay.exec(scwArrSeed[2]) == null
         ) {
            if (scwShowInvalidDateMsg)
               alert(scwInvalidDateMsg +
                  scwInvalidAlert[0] + scwDateValue +
                  scwInvalidAlert[1]);
            scwBlnFullInputDate = false;
            scwArrSeed[0] = scwBaseYear +
               Math.floor(scwDropDownYears / 2); // Year
            scwArrSeed[1] = '6';                            // Month
            scwArrSeed[2] = 1;                              // Day
         }

         // Return the  Year    in scwArrSeed[0]
         //             Month   in scwArrSeed[1]
         //             Day     in scwArrSeed[2]

         return scwArrSeed;
      }

      // Parse the string into an array using the allowed delimiters

      scwArrSeedDate = scwInputFormat();

      // So now we have the Year, Month and Day in an array.

      //   If the year is one or two digits then the routine assumes a
      //   year belongs in the 21st Century unless it is less than 50
      //   in which case it assumes the 20th Century is intended.

      if (scwArrSeedDate[0] < 100)
         scwArrSeedDate[0] += (scwArrSeedDate[0] > 50) ? 1900 : 2000;

      // Check whether the month is in digits or an abbreviation

      if (scwArrSeedDate[1].search(/\d+/) != 0) {
         month = scwArrMonthNames.join('|').toUpperCase().
            search(scwArrSeedDate[1].substr(0, 3).
               toUpperCase());
         scwArrSeedDate[1] = Math.floor(month / 4) + 1;
      }

      scwSeedDate = new Date(scwArrSeedDate[0],
         scwArrSeedDate[1] - 1,
         scwArrSeedDate[2]);
   }

   // Test that we have arrived at a valid date

   if (isNaN(scwSeedDate)) {
      if (scwShowInvalidDateMsg)
         alert(scwInvalidDateMsg +
            scwInvalidAlert[0] + scwDateValue +
            scwInvalidAlert[1]);
      scwSeedDate = new Date(scwBaseYear +
         Math.floor(scwDropDownYears / 2), 5, 1);
      scwBlnFullInputDate = false;
   }
   else {// Test that the date is within range,
      // if not then set date to a sensible date in range.

      if ((new Date(scwBaseYear, 0, 1)) > scwSeedDate) {
         if (scwBlnStrict && scwShowOutOfRangeMsg)
            alert(scwOutOfRangeMsg);
         scwSeedDate = new Date(scwBaseYear, 0, 1);
         scwBlnFullInputDate = false;
      }
      else {
         if ((new Date(scwBaseYear + scwDropDownYears, 0, 0)) <
            scwSeedDate) {
            if (scwBlnStrict && scwShowOutOfRangeMsg)
               alert(scwOutOfRangeMsg);
            scwSeedDate = new Date(scwBaseYear +
               Math.floor(scwDropDownYears) - 1,
               11, 1);
            scwBlnFullInputDate = false;
         }
         else {
            if (scwBlnStrict && scwBlnFullInputDate &&
               (scwSeedDate.getDate() != scwArrSeedDate[2] ||
                  (scwSeedDate.getMonth() + 1) != scwArrSeedDate[1] ||
                  scwSeedDate.getFullYear() != scwArrSeedDate[0]
               )
            ) {
               if (scwShowDoesNotExistMsg) alert(scwDoesNotExistMsg);
               scwSeedDate = new Date(scwSeedDate.getFullYear(),
                  scwSeedDate.getMonth() - 1, 1);
               scwBlnFullInputDate = false;
            }
         }
      }
   }

   // Test the disabled dates for validity
   // Give error message if not valid.

   for (var i = 0; i < scwDisabledDates.length; i++) {
      if (!((typeof scwDisabledDates[i] == 'object') &&
         (scwDisabledDates[i].constructor == Date))) {
         if ((typeof scwDisabledDates[i] == 'object') &&
            (scwDisabledDates[i].constructor == Array)) {
            var scwPass = true;

            if (scwDisabledDates[i].length != 2) {
               if (scwShowRangeDisablingError)
                  alert(scwRangeDisablingError[0] +
                     scwDisabledDates[i] +
                     scwRangeDisablingError[1]);
               scwPass = false;
            }
            else {
               for (var j = 0; j < scwDisabledDates[i].length; j++) {
                  if (!((typeof scwDisabledDates[i][j]
                     == 'object') &&
                     (scwDisabledDates[i][j].constructor
                        == Date))) {
                     if (scwShowRangeDisablingError)
                        alert(scwDateDisablingError[0] +
                           scwDisabledDates[i][j] +
                           scwDateDisablingError[1]);
                     scwPass = false;
                  }
               }
            }

            if (scwPass &&
               (scwDisabledDates[i][0] > scwDisabledDates[i][1])
            ) { scwDisabledDates[i].reverse(); }
         }
         else {
            if (scwShowRangeDisablingError)
               alert(scwDateDisablingError[0] +
                  scwDisabledDates[i] +
                  scwDateDisablingError[1]);
         }
      }
   }

   // Calculate the number of months that the entered (or
   // defaulted) month is after the start of the allowed
   // date range.

   scwMonthSum = 12 * (scwSeedDate.getFullYear() - scwBaseYear) +
      scwSeedDate.getMonth();

   // Set the drop down boxes.

   scwID('scwYears').options.selectedIndex = Math.floor(scwMonthSum / 12);
   scwID('scwMonths').options.selectedIndex = (scwMonthSum % 12);

   // Opera has a bug with this method of setting the selected index.
   // It requires the following work-around to force SELECTs to display
   // correctly.

   if (window.opera) {
      scwID('scwMonths').style.display = 'none';
      scwID('scwMonths').style.display = 'block';
      scwID('scwYears').style.display = 'none';
      scwID('scwYears').style.display = 'block';
   }

   // The bug is apparently known and "fixed for future versions"
   // but they say they aren't going to put the fix into the 9.x
   // series.

   // Check whether or not dragging is allowed and display drag handle
   // if necessary

   scwID('scwDrag').style.display =
      (scwAllowDrag)
         ? ((scwID('scwIFrame')) ? 'block' : 'table-row')
         : 'none';

   // Display the month

   scwShowMonth(0);

   // Position the calendar box

   // The object sniffing for Opera allows for the fact that Opera
   // is the only major browser that correctly reports the position
   // of an element in a scrollable DIV.  This is because IE and
   // Firefox omit the DIV from the offsetParent tree.

   scwTargetEle = scwEle;

   var offsetTop = parseInt(scwEle.offsetTop, 10) +
      parseInt(scwEle.offsetHeight, 10),
      offsetLeft = parseInt(scwEle.offsetLeft, 10);

   if (!window.opera) {
      while (scwEle.tagName != 'BODY' && scwEle.tagName != 'HTML') {
         offsetTop -= parseInt(scwEle.scrollTop, 10);
         offsetLeft -= parseInt(scwEle.scrollLeft, 10);
         scwEle = scwEle.parentNode;
      }
      scwEle = scwTargetEle;
   }

   do {
      scwEle = scwEle.offsetParent;
      offsetTop += parseInt(scwEle.offsetTop, 10);
      offsetLeft += parseInt(scwEle.offsetLeft, 10);
   }
   while (scwEle.tagName != 'BODY' && scwEle.tagName != 'HTML');

   scwID('scw').style.top = offsetTop + 'px';
   scwID('scw').style.left = offsetLeft + 'px';

   if (scwID('scwIframe')) {
      scwID('scwIframe').style.top = offsetTop + 'px';
      scwID('scwIframe').style.left = offsetLeft + 'px';
      scwID('scwIframe').style.width = (scwID('scw').offsetWidth - 2) + 'px';
      scwID('scwIframe').style.height = (scwID('scw').offsetHeight - 2) + 'px';
      scwID('scwIframe').style.visibility = 'visible';
   }

   // Show it on the page

   scwID('scw').style.visibility = 'visible';

   // Ensure that Opera actually displays the value that is selected!

   scwID('scwYears').options.selectedIndex = scwID('scwYears').options.selectedIndex;
   scwID('scwMonths').options.selectedIndex = scwID('scwMonths').options.selectedIndex;

   var el = (scwSourceEle.parentNode)
      ? scwSourceEle.parentNode
      : scwSourceEle;

   if (typeof event == 'undefined') {
      el.addEventListener('click',
         scwStopPropagation,
         false);
   }
   else {
      if (el.attachEvent) { el.attachEvent('onclick', scwStopPropagation); }
      else { event.cancelBubble = true; }
   }
}

function scwHide() {
   scwID('scw').style.visibility = 'hidden';
   if (scwID('scwIframe')) { scwID('scwIframe').style.visibility = 'hidden'; }

   if (typeof scwNextAction != 'undefined' && scwNextAction != null) {
      scwNextActionReturn = scwNextAction();
      // Explicit null set to prevent closure causing memory leak
      scwNextAction = null;
   }
}

function scwCancel(scwEvt) {
   if (scwClickToHide) scwHide();
   scwStopPropagation(scwEvt);
}

function scwStopPropagation(scwEvt) {
   if (scwEvt.stopPropagation)
      scwEvt.stopPropagation();     // Capture phase
   else scwEvt.cancelBubble = true;   // Bubbling phase
}

function scwBeginDrag(event) {
   var elementToDrag = scwID('scw');

   var deltaX = event.clientX,
      deltaY = event.clientY,
      offsetEle = elementToDrag;

   do {
      deltaX -= parseInt(offsetEle.offsetLeft, 10);
      deltaY -= parseInt(offsetEle.offsetTop, 10);
      offsetEle = offsetEle.offsetParent;
   }
   while (offsetEle.tagName != 'BODY' &&
      offsetEle.tagName != 'HTML');

   if (document.addEventListener) {
      document.addEventListener('mousemove',
         moveHandler,
         true);        // Capture phase
      document.addEventListener('mouseup',
         upHandler,
         true);        // Capture phase
   }
   else {
      elementToDrag.attachEvent('onmousemove',
         moveHandler); // Bubbling phase
      elementToDrag.attachEvent('onmouseup',
         upHandler); // Bubbling phase
      elementToDrag.setCapture();
   }

   scwStopPropagation(event);

   function moveHandler(scwEvt) {
      if (!scwEvt) scwEvt = window.event;

      elementToDrag.style.left = (scwEvt.clientX - deltaX) + 'px';
      elementToDrag.style.top = (scwEvt.clientY - deltaY) + 'px';

      if (scwID('scwIframe')) {
         scwID('scwIframe').style.left =
            (scwEvt.clientX - deltaX) + 'px';
         scwID('scwIframe').style.top =
            (scwEvt.clientY - deltaY) + 'px';
      }

      scwStopPropagation(scwEvt);
   }

   function upHandler(scwEvt) {
      if (!scwEvt) scwEvt = window.event;

      if (document.removeEventListener) {
         document.removeEventListener('mousemove',
            moveHandler,
            true);     // Capture phase
         document.removeEventListener('mouseup',
            upHandler,
            true);     // Capture phase
      }
      else {
         elementToDrag.detachEvent('onmouseup',
            upHandler); // Bubbling phase
         elementToDrag.detachEvent('onmousemove',
            moveHandler); // Bubbling phase
         elementToDrag.releaseCapture();
      }

      scwStopPropagation(scwEvt);
   }
}

function scwShowMonth(scwBias) {// Set the selectable Month and Year
   // May be called: from the left and right arrows
   //                  (shift month -1 and +1 respectively)
   //                from the month selection list
   //                from the year selection list
   //                from the showCal routine
   //                  (which initiates the display).

   var scwShowDate = new Date(Date.parse(new Date().toDateString())),
      scwStartDate = new Date();

   // Set the time to the middle of the day so that the handful of
   // regions that have daylight saving shifts that change the day
   // of the month (i.e. turn the clock back at midnight or forward
   // at 23:00) do not mess up the date display in the calendar.

   scwShowDate.setHours(12);

   scwSelYears = scwID('scwYears');
   scwSelMonths = scwID('scwMonths');

   if (scwSelYears.options.selectedIndex > -1) {
      scwMonthSum = 12 * (scwSelYears.options.selectedIndex) + scwBias;
      if (scwSelMonths.options.selectedIndex > -1) { scwMonthSum += scwSelMonths.options.selectedIndex; }
   }
   else {
      if (scwSelMonths.options.selectedIndex > -1) { scwMonthSum += scwSelMonths.options.selectedIndex; }
   }

   scwShowDate.setFullYear(scwBaseYear + Math.floor(scwMonthSum / 12),
      (scwMonthSum % 12),
      1);

   // If the Week numbers are displayed, shift the week day names
   // to the right.
   scwID('scwWeek_').style.display =
      (scwWeekNumberDisplay)
         ? ((scwID('scwIFrame')) ? 'block' : 'table-cell')
         : 'none';

   if ((12 * parseInt((scwShowDate.getFullYear() - scwBaseYear), 10)) +
      parseInt(scwShowDate.getMonth(), 10) < (12 * scwDropDownYears) &&
      (12 * parseInt((scwShowDate.getFullYear() - scwBaseYear), 10)) +
      parseInt(scwShowDate.getMonth(), 10) > -1) {
      scwSelYears.options.selectedIndex = Math.floor(scwMonthSum / 12);
      scwSelMonths.options.selectedIndex = (scwMonthSum % 12);

      scwCurMonth = scwShowDate.getMonth();

      scwShowDate.setDate((((scwShowDate.
         getDay() - scwWeekStart) < 0) ? -6 : 1) +
         scwWeekStart - scwShowDate.getDay());

      // This statement moved by Michael Cerveny to make version 3.55
      var scwCompareDateValue = new Date(scwShowDate.getFullYear(),
         scwShowDate.getMonth(),
         scwShowDate.getDate()).valueOf();

      scwStartDate = new Date(scwShowDate);

      if (scwID('scwFoot')) {
         var scwFoot = scwID('scwFoot');

         function scwFootOutput() { scwSetOutput(scwDateNow); }

         if (scwDisabledDates.length == 0) {
            if (scwActiveToday && scwParmActiveToday) {
               scwFoot.onclick = scwFootOutput;
               scwFoot.className = 'scwFoot';

               if (scwID('scwIFrame')) {
                  scwFoot.onmouseover = scwChangeClass;
                  scwFoot.onmouseout = scwChangeClass;
               }

            }
            else {
               scwFoot.onclick = null;
               scwFoot.className = 'scwFootDisabled';

               if (scwID('scwIFrame')) {
                  scwFoot.onmouseover = null;
                  scwFoot.onmouseout = null;
               }

               if (document.addEventListener) {
                  scwFoot.addEventListener('click',
                     scwStopPropagation,
                     false);
               }
               else {
                  scwFoot.attachEvent('onclick',
                     scwStopPropagation);
               }
            }
         }
         else {
            for (var k = 0; k < scwDisabledDates.length; k++) {
               if (!scwActiveToday || !scwParmActiveToday ||
                  ((typeof scwDisabledDates[k] == 'object') &&
                     (((scwDisabledDates[k].constructor == Date) &&
                        scwDateNow.valueOf() == scwDisabledDates[k].
                           valueOf()
                     ) ||
                        ((scwDisabledDates[k].constructor == Array) &&
                           scwDateNow.valueOf() >= scwDisabledDates[k][0].
                              valueOf() &&
                           scwDateNow.valueOf() <= scwDisabledDates[k][1].
                              valueOf()
                        )
                     )
                  )
               ) {
                  scwFoot.onclick = null;
                  scwFoot.className = 'scwFootDisabled';

                  if (scwID('scwIFrame')) {
                     scwFoot.onmouseover = null;
                     scwFoot.onmouseout = null;
                  }

                  if (document.addEventListener) {
                     scwFoot.addEventListener('click',
                        scwStopPropagation,
                        false);
                  }
                  else {
                     scwFoot.attachEvent('onclick',
                        scwStopPropagation);
                  }
                  break;
               }
               else {
                  scwFoot.onclick = scwFootOutput;
                  scwFoot.className = 'scwFoot';

                  if (scwID('scwIFrame')) {
                     scwFoot.onmouseover = scwChangeClass;
                     scwFoot.onmouseout = scwChangeClass;
                  }
               }
            }
         }
      }

      function scwSetOutput(scwOutputDate) {
         if (typeof scwTargetEle.value == 'undefined') {
            scwTriggerEle.scwTextNode.
               replaceData(0, scwTriggerEle.scwLength,
                  scwOutputDate.scwFormat(scwDateOutputFormat));
         }
         else {
            scwTargetEle.value =
               scwOutputDate.scwFormat(scwDateOutputFormat);
         }
         scwHide();
      }

      function scwCellOutput(scwEvt) {
         var scwEle = scwEventTrigger(scwEvt),
            scwOutputDate = new Date(scwStartDate);

         if (scwEle.nodeType == 3) scwEle = scwEle.parentNode;

         scwOutputDate.setDate(scwStartDate.getDate() +
            parseInt(scwEle.id.substr(8), 10));

         scwSetOutput(scwOutputDate);
      }

      function scwChangeClass(scwEvt) {
         var scwEle = scwEventTrigger(scwEvt);

         if (scwEle.nodeType == 3) scwEle = scwEle.parentNode;

         switch (scwEle.className) {
            case 'scwCells':
               scwEle.className = 'scwCellsHover';
               break;
            case 'scwCellsHover':
               scwEle.className = 'scwCells';
               break;
            case 'scwCellsExMonth':
               scwEle.className = 'scwCellsExMonthHover';
               break;
            case 'scwCellsExMonthHover':
               scwEle.className = 'scwCellsExMonth';
               break;
            case 'scwCellsWeekend':
               scwEle.className = 'scwCellsWeekendHover';
               break;
            case 'scwCellsWeekendHover':
               scwEle.className = 'scwCellsWeekend';
               break;
            case 'scwFoot':
               scwEle.className = 'scwFootHover';
               break;
            case 'scwFootHover':
               scwEle.className = 'scwFoot';
               break;
            case 'scwInputDate':
               scwEle.className = 'scwInputDateHover';
               break;
            case 'scwInputDateHover':
               scwEle.className = 'scwInputDate';
         }

         return true;
      }

      function scwEventTrigger(scwEvt) {
         if (!scwEvt) scwEvt = event;
         return scwEvt.target || scwEvt.srcElement;
      }

      function scwWeekNumber(scwInDate) {// The base day in the week of the input date
         var scwInDateWeekBase = new Date(scwInDate);

         scwInDateWeekBase.setDate(scwInDateWeekBase.getDate()
            - scwInDateWeekBase.getDay()
            + scwWeekNumberBaseDay
            + ((scwInDate.getDay() >
               scwWeekNumberBaseDay) ? 7 : 0));

         // The first Base Day in the year
         var scwFirstBaseDay =
            new Date(scwInDateWeekBase.getFullYear(), 0, 1);

         scwFirstBaseDay.setDate(scwFirstBaseDay.getDate()
            - scwFirstBaseDay.getDay()
            + scwWeekNumberBaseDay
         );

         if (scwFirstBaseDay <
            new Date(scwInDateWeekBase.getFullYear(), 0, 1)) { scwFirstBaseDay.setDate(scwFirstBaseDay.getDate() + 7); }

         // Start of Week 01
         var scwStartWeekOne = new Date(scwFirstBaseDay
            - scwWeekNumberBaseDay
            + scwInDate.getDay());

         if (scwStartWeekOne > scwFirstBaseDay) { scwStartWeekOne.setDate(scwStartWeekOne.getDate() - 7); }

         // Subtract the date of the current week from the date of the
         // first week of the year to get the number of weeks in
         // milliseconds.  Divide by the number of milliseconds
         // in a week then round to no decimals in order to remove
         // the effect of daylight saving.  Add one to make the first
         // week, week 1.  Place a string zero on the front so that
         // week numbers are zero filled.

         var scwWeekNo =
            '0' + (Math.round((scwInDateWeekBase -
               scwFirstBaseDay) / 604800000, 0) + 1);

         // Return the last two characters in the week number string

         return scwWeekNo.substring(scwWeekNo.length - 2,
            scwWeekNo.length);
      }

      // Treewalk to display the dates.
      // I tried to use getElementsByName but IE refused to cooperate
      // so I resorted to this method which works for all tested
      // browsers.

      var scwCells = scwID('scwCells');

      for (i = 0; i < scwCells.childNodes.length; i++) {
         var scwRows = scwCells.childNodes[i];
         if (scwRows.nodeType == 1 && scwRows.tagName == 'TR') {
            if (scwWeekNumberDisplay) {//Calculate the week number using scwShowDate
               scwTmpEl = scwRows.childNodes[0];
               scwTmpEl.innerHTML = scwWeekNumber(scwShowDate);
               scwTmpEl.style.borderColor =
                  (scwTmpEl.currentStyle)
                     ? scwTmpEl.currentStyle['backgroundColor']
                     : (window.getComputedStyle)
                        ? document.defaultView.getComputedStyle(scwTmpEl, null).getPropertyValue('background-color')
                        : '';
               scwTmpEl.style.display = '';
            }
            else { scwRows.childNodes[0].style.display = 'none'; }

            for (j = 1; j < scwRows.childNodes.length; j++) {
               var scwCols = scwRows.childNodes[j];
               if (scwCols.nodeType == 1 && scwCols.tagName == 'TD') {
                  scwRows.childNodes[j].innerHTML =
                     scwShowDate.getDate();
                  var scwCell = scwRows.childNodes[j],
                     scwDisabled =
                        ((scwOutOfRangeDisable &&
                           (scwShowDate <
                              (new Date(scwBaseYear, 0, 1,
                                 scwShowDate.getHours()))
                              ||
                              scwShowDate >
                              (new Date(scwBaseYear +
                                 scwDropDownYears, 0, 0,
                                 scwShowDate.getHours()))
                           )
                        ) ||
                           (scwOutOfMonthDisable &&
                              (scwShowDate <
                                 (new Date(scwShowDate.getFullYear(),
                                    scwCurMonth, 1,
                                    scwShowDate.getHours()))
                                 ||
                                 scwShowDate >
                                 (new Date(scwShowDate.getFullYear(),
                                    scwCurMonth + 1, 0,
                                    scwShowDate.getHours()))
                              )
                           )
                        ) ? true : false;

                  scwCell.style.visibility =
                     (scwOutOfMonthHide &&
                        (scwShowDate <
                           (new Date(scwShowDate.getFullYear(),
                              scwCurMonth, 1,
                              scwShowDate.getHours()))
                           ||
                           scwShowDate >
                           (new Date(scwShowDate.getFullYear(),
                              scwCurMonth + 1, 0,
                              scwShowDate.getHours()))
                        )
                     ) ? 'hidden' : '';

                  for (var k = 0; k < scwDisabledDates.length; k++) {
                     if ((typeof scwDisabledDates[k] == 'object')
                        &&
                        (scwDisabledDates[k].constructor ==
                           Date
                        )
                        &&
                        scwCompareDateValue ==
                        scwDisabledDates[k].valueOf()
                     ) { scwDisabled = true; }
                     else {
                        if ((typeof scwDisabledDates[k] == 'object')
                           &&
                           (scwDisabledDates[k].constructor ==
                              Array
                           )
                           &&
                           scwCompareDateValue >=
                           scwDisabledDates[k][0].valueOf()
                           &&
                           scwCompareDateValue <=
                           scwDisabledDates[k][1].valueOf()
                        ) { scwDisabled = true; }
                     }
                  }

                  if (scwDisabled ||
                     !scwEnabledDay[j - 1 + (7 * ((i * scwCells.
                        childNodes.
                        length) / 6))] ||
                     !scwPassEnabledDay[(j - 1 + (7 * (i * scwCells.
                        childNodes.
                        length / 6))) % 7]
                  ) {
                     scwRows.childNodes[j].onclick = null;

                     if (scwID('scwIFrame')) {
                        scwRows.childNodes[j].onmouseover = null;
                        scwRows.childNodes[j].onmouseout = null;
                     }

                     scwCell.className =
                        (scwShowDate.getMonth() != scwCurMonth)
                           ? 'scwCellsExMonthDisabled'
                           : (scwBlnFullInputDate &&
                              scwShowDate.toDateString() ==
                              scwSeedDate.toDateString())
                              ? 'scwInputDateDisabled'
                              : (scwShowDate.getDay() % 6 == 0)
                                 ? 'scwCellsWeekendDisabled'
                                 : 'scwCellsDisabled';

                     scwCell.style.borderColor =
                        (scwFormatTodayCell && scwShowDate.toDateString() == scwDateNow.toDateString())
                           ? scwTodayCellBorderColour
                           : (scwCell.currentStyle)
                              ? scwCell.currentStyle['backgroundColor']
                              : (window.getComputedStyle)
                                 ? document.defaultView.getComputedStyle(scwCell, null).getPropertyValue('background-color')
                                 : '';
                  }
                  else {
                     scwRows.childNodes[j].onclick = scwCellOutput;

                     if (scwID('scwIFrame')) {
                        scwRows.childNodes[j].onmouseover =
                           scwChangeClass;
                        scwRows.childNodes[j].onmouseout =
                           scwChangeClass;
                     }

                     scwCell.className =
                        (scwShowDate.getMonth() != scwCurMonth)
                           ? 'scwCellsExMonth'
                           : (scwBlnFullInputDate &&
                              scwShowDate.toDateString() ==
                              scwSeedDate.toDateString())
                              ? 'scwInputDate'
                              : (scwShowDate.getDay() % 6 == 0)
                                 ? 'scwCellsWeekend'
                                 : 'scwCells';

                     scwCell.style.borderColor =
                        (scwFormatTodayCell && scwShowDate.toDateString() == scwDateNow.toDateString())
                           ? scwTodayCellBorderColour
                           : (scwCell.currentStyle)
                              ? scwCell.currentStyle['backgroundColor']
                              : (window.getComputedStyle)
                                 ? document.defaultView.getComputedStyle(scwCell, null).getPropertyValue('background-color')
                                 : '';
                  }

                  scwShowDate.setDate(scwShowDate.getDate() + 1);
                  scwCompareDateValue = new Date(scwShowDate.getFullYear(),
                     scwShowDate.getMonth(),
                     scwShowDate.getDate()).valueOf();
               }
            }
         }
      }
   }
   // Force a re-draw to prevent Opera's poor dynamic rendering
   // from leaving garbage in the calendar when the displayed
   // month is changed.
   scwID('scw').style.visibility = 'hidden';
   scwID('scw').style.visibility = 'visible';
}

// *************************
//  End of Function Library
// *************************
// ***************************
// Start of Calendar structure
// ***************************

document.write(
   "<!--[if IE]>" +
   "<iframe class='scw' src='/scwblank.html' " +
   "id='scwIframe' name='scwIframe' " +
   "frameborder='0'>" +
   "</iframe>" +
   "<![endif]-->" +
   "<table id='scw' class='scw'>" +
   "<tr class='scw'>" +
   "<td class='scw'>" +
   "<table class='scwHead' id='scwHead' width='100%' " +
   "cellspacing='0' cellpadding='0'>" +
   "<tr id='scwDrag' style='display:none;'>" +
   "<td colspan='4' class='scwDrag' " +
   "onmousedown='scwBeginDrag(event);'>" +
   "<div id='scwDragText'></div>" +
   "</td>" +
   "</tr>" +
   "<tr class='scwHead' >" +
   "<td class='scwHead'>" +
   "<input class='scwHead' id='scwHeadLeft' type='button' value='<' " +
   "onclick='scwShowMonth(-1);'  /></td>" +
   "<td class='scwHead'>" +
   "<select id='scwMonths' class='scwHead' " +
   "onchange='scwShowMonth(0);'>" +
   "</select>" +
   "</td>" +
   "<td class='scwHead'>" +
   "<select id='scwYears' class='scwHead' " +
   "onchange='scwShowMonth(0);'>" +
   "</select>" +
   "</td>" +
   "<td class='scwHead'>" +
   "<input class='scwHead' id='scwHeadRight' type='button' value='>' " +
   "onclick='scwShowMonth(1);' /></td>" +
   "</tr>" +
   "</table>" +
   "</td>" +
   "</tr>" +
   "<tr class='scw'>" +
   "<td class='scw'>" +
   "<table class='scwCells' align='center'>" +
   "<thead>" +
   "<tr><td class='scwWeekNumberHead' id='scwWeek_' ></td>");

for (i = 0; i < 7; i++)
   document.write("<td class='scwWeek' id='scwWeekInit" + i + "'></td>");

document.write("</tr>" +
   "</thead>" +
   "<tbody id='scwCells' " +
   "onClick='scwStopPropagation(event);'>");

for (i = 0; i < 6; i++) {
   document.write(
      "<tr>" +
      "<td class='scwWeekNo' id='scwWeek_" + i + "'></td>");
   for (j = 0; j < 7; j++) {
      document.write(
         "<td class='scwCells' id='scwCell_" + (j + (i * 7)) +
         "'></td>");
   }

   document.write(
      "</tr>");
}

document.write(
   "</tbody>");

if ((new Date(scwBaseYear + scwDropDownYears, 0, 0)) > scwDateNow &&
   (new Date(scwBaseYear, 0, 0)) < scwDateNow) {
   document.write(
      "<tfoot class='scwFoot'>" +
      "<tr class='scwFoot'>" +
      "<td class='scwFoot' id='scwFoot' colspan='8'>" +
      "</td>" +
      "</tr>" +
      "</tfoot>");
}

document.write(
   "</table>" +
   "</td>" +
   "</tr>" +
   "</table>");

if (document.addEventListener) {
   scwID('scw').addEventListener('click', scwCancel, false);
   scwID('scwHeadLeft').addEventListener('click', scwStopPropagation, false);
   scwID('scwMonths').addEventListener('click', scwStopPropagation, false);
   scwID('scwMonths').addEventListener('change', scwStopPropagation, false);
   scwID('scwYears').addEventListener('click', scwStopPropagation, false);
   scwID('scwYears').addEventListener('change', scwStopPropagation, false);
   scwID('scwHeadRight').addEventListener('click', scwStopPropagation, false);
}
else {
   scwID('scw').attachEvent('onclick', scwCancel);
   scwID('scwHeadLeft').attachEvent('onclick', scwStopPropagation);
   scwID('scwMonths').attachEvent('onclick', scwStopPropagation);
   scwID('scwMonths').attachEvent('onchange', scwStopPropagation);
   scwID('scwYears').attachEvent('onclick', scwStopPropagation);
   scwID('scwYears').attachEvent('onchange', scwStopPropagation);
   scwID('scwHeadRight').attachEvent('onclick', scwStopPropagation);
}

// ***************************
//  End of Calendar structure
// ***************************
// ****************************************
// Start of document level event definition
// ****************************************

if (document.addEventListener) { document.addEventListener('click', scwHide, false); }
else { document.attachEvent('onclick', scwHide); }

// ****************************************
//  End of document level event definition
// ****************************************
// ************************************
//  End of Simple Calendar Widget Code
// ************************************