/***********************************************
* Jason's Date Input Calendar- By Jason Moon http://www.jasonmoon.net/
* Script featured on and available at http://www.dynamicdrive.com
* Keep this notice intact for use.
***********************************************/

/***********************************************
 Fool-Proof Date Input Script with DHTML Calendar
 by Jason Moon - webmaster@moonfam.net
 ************************************************/

// Customizable variables
var CalId;
var MonthClicked = false;
var DefaultDateFormat = 'MM/DD/YYYY'; // If no date format is supplied, this will be used instead
var DefaultDepartureDays = 7; //BP: 3/25/2008 - Default number of days from arrival date when none is specified
var HideWait = 3; // Number of seconds before the calendar will disappear
var Y2kPivotPoint = 76; // 2-digit years before this point will be created in the 21st century
var FontSize = 11; // In pixels
var FontFamily = 'Tahoma';
var CellWidth = 23;
var CellHeight = 18;
var ImagePath = '../library/js_calendar'; //BP: 02/22/2005: - modified path
var ImageURL = ImagePath + '/calendar.gif';
var NextURL = ImagePath + '/next.gif';
var PrevURL = ImagePath + '/prev.gif';
var CalBGColor = 'white';
var TopRowBGColor = 'buttonface';
var DayBGColor = 'orange';
var WeekendColor = ''; //BP: 02/22/2005 - was 'orange' but removed by request.
var BookedColor = 'lightgrey' //BP: 4/16/2008 - show gray when booked
var TodayColor = '#ffffc0'; //BP: 02/22/2005 - Bright Yellow 
var SelectedDayBGColor = '#000080' //BP: 02/22/2005 - Dark Blue
var BackColor = '' //BP: 04/05/2006 - intialize

// Global variables
var ZCounter = 100;
var Today = new Date();
var WeekDays = new Array('S','M','T','W','T','F','S');
var MonthDays = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
var MonthNames = new Array('January','February','March','April','May','June','July','August','September','October','November','December');
//BP: 4/16/2008 - this is defined on the calling page and filled with the BookedDays object if present
if (typeof UnitResv!="undefined"){ 
    var Reservations = UnitResv.Reservations 
}

// Write out the stylesheet definition for the calendar
with (document) {
   writeln('<style>');
   writeln('td.calendarDateInput {letter-spacing:normal;line-height:normal;font-family:' + FontFamily + ',Sans-Serif;font-size:' + FontSize + 'px;}');
   writeln('select.calendarDateInput {letter-spacing:.06em;font-family:Verdana,Sans-Serif;font-size:11px;}');
   writeln('input.calendarDateInput {letter-spacing:.06em;font-family:Verdana,Sans-Serif;font-size:11px;}');
   writeln('</style>');
}

// Only allows certain keys to be used in the date field
function NumOnly(e) {
   var KeyCode = (e.keyCode) ? e.keyCode : e.which;
   return ((KeyCode == 8) // backspace
        || (KeyCode == 9) // tab
        || (KeyCode == 37) // left arrow
        || (KeyCode == 39) // right arrow
        || (KeyCode == 46) // delete
        || ((KeyCode > 47) && (KeyCode < 58)) // 0 - 9
   );
}

// Gets the absolute pixel position of the supplied element
function GetTagPixels(StartTag, Direction) {
   var PixelAmt = (Direction == 'LEFT') ? StartTag.offsetLeft : StartTag.offsetTop;
   while ((StartTag.tagName != 'BODY') && (StartTag.tagName != 'HTML')) {
      StartTag = StartTag.offsetParent;
      PixelAmt += (Direction == 'LEFT') ? StartTag.offsetLeft : StartTag.offsetTop;
   }
   return PixelAmt;
}

// Is the specified select-list behind the calendar?
function BehindCal(SelectList, CalLeftX, CalRightX, CalTopY, CalBottomY, ListTopY) {
   var ListLeftX = GetTagPixels(SelectList, 'LEFT');
   var ListRightX = ListLeftX + SelectList.offsetWidth;
   var ListBottomY = ListTopY + SelectList.offsetHeight;
   return (((ListTopY < CalBottomY) && (ListBottomY > CalTopY)) && ((ListLeftX < CalRightX) && (ListRightX > CalLeftX)));
}

// For IE, hides any select-lists that are behind the calendar
function FixSelectLists(Over) {
   if (navigator.appName == 'Microsoft Internet Explorer') {
      var CalDiv = this.getCalendar();
      var CalLeftX = CalDiv.offsetLeft;
      var CalRightX = CalLeftX + CalDiv.offsetWidth;
      var CalTopY = CalDiv.offsetTop;
      var CalBottomY = CalTopY + (CellHeight * 9);
      var FoundCalInput = false;
      formLoop :
      for (var j=this.formNumber;j<document.forms.length;j++) {
         for (var i=0;i<document.forms[j].elements.length;i++) {
            if (typeof document.forms[j].elements[i].type == 'string') {
               if ((document.forms[j].elements[i].type == 'hidden') && (document.forms[j].elements[i].name == this.hiddenFieldName)) {
                  FoundCalInput = true;
                  i += 3; // 3 elements between the 1st hidden field and the last year input field
               }
               if (FoundCalInput) {
                  if (document.forms[j].elements[i].type.substr(0,6) == 'select') {
                     ListTopY = GetTagPixels(document.forms[j].elements[i], 'TOP');
                     if (ListTopY < CalBottomY) {
                        if (BehindCal(document.forms[j].elements[i], CalLeftX, CalRightX, CalTopY, CalBottomY, ListTopY)) {
                           document.forms[j].elements[i].style.visibility = (Over) ? 'hidden' : 'visible';
                        }
                     }
                     else break formLoop;
                  }
               }
            }
         }
      }
   }
}

// Displays a message in the status bar when hovering over the calendar days
function DayCellHover(Cell, Over, Color, HoveredDay) {
   Cell.style.backgroundColor = (Over) ? DayBGColor : Color;
   Cell.style.cursor = 'hand'; //BP: 02/22/2005 Added cursor hand for day rollover
   if (Over) {
      if ((this.yearValue == Today.getFullYear()) && (this.monthIndex == Today.getMonth()) && (HoveredDay == Today.getDate())) self.status = 'Click to select today';
      else {
         var Suffix = HoveredDay.toString();
         switch (Suffix.substr(Suffix.length - 1, 1)) {
            case '1' : Suffix += (HoveredDay == 11) ? 'th' : 'st'; break;
            case '2' : Suffix += (HoveredDay == 12) ? 'th' : 'nd'; break;
            case '3' : Suffix += (HoveredDay == 13) ? 'th' : 'rd'; break;
            default : Suffix += 'th'; break;
         }
         self.status = 'Click to select ' + this.monthName + ' ' + Suffix;
      }
   }
   else self.status = '';
   return true;
}

// Sets the form elements after a day has been picked from the calendar
function PickDisplayDay(ClickedDay) {
   this.show();
   var MonthList = this.getMonthList();
   var DayList = this.getDayList();
   var YearField = this.getYearField();
   var DateNameField = this.getDateField();
   var DepartDateObj = this.getDepartDateID;
   var DefaultDepartDaysFromArrivalDate = this.getDefaultDepartDate;
   //alert(DateNameField.name)
  // FixDayList(DayList, GetDayCount(this.displayed.yearValue, this.displayed.monthIndex));
   // Select the month and day in the lists
   /*
   for (var i=0;i<MonthList.length;i++) {
      if (MonthList.options[i].value == this.displayed.monthIndex) MonthList.options[i].selected = true;
   }
   
   for (var j=1;j<=DayList.length;j++) {
      if (j == ClickedDay) DayList.options[j-1].selected = true;
   }
   */
   this.setPicked(this.displayed.yearValue, this.displayed.monthIndex, ClickedDay);
   // Change the year, if necessary
   YearField.value = this.picked.yearPad;
   YearField.defaultValue = YearField.value;
   //BP 5/8/2005 : Format date string

   DateNameField.value = (this.displayed.monthIndex+1) + "/" + ClickedDay + "/" + YearField.value;
   
   if (DepartDateObj != "undefined"){
   //BP: 3/25/2008 - This is where the arrival calendar populates the date of the departure calendar which is referenced by the passed-in DepartDateID
    DepartDateObj = DepartDateObj + "_Object";
        try {
            var tmpDate = new Date;
            tmpDate.setDate(ClickedDay);
            tmpDate.setMonth(this.displayed.monthIndex);
            tmpDate.setFullYear(this.displayed.yearValue);
            
            if (DefaultDepartDaysFromArrivalDate == null) {DefaultDepartDaysFromArrivalDate = DefaultDepartureDays}//;
            //alert(DefaultDepartDaysFromArrivalDate)
            tmpDate.setDate(tmpDate.getDate() + DefaultDepartDaysFromArrivalDate); 
            eval(DepartDateObj).setPicked(tmpDate.getFullYear(), tmpDate.getMonth(), tmpDate.getDate()) //set selected date on calendar
            eval(DepartDateObj).getDateField().value = tmpDate.getMonth()+1 + "/" + tmpDate.getDate() + "/" + tmpDate.getFullYear(); //set selected date in textbox
        }
        catch (err){alert('Error: The arrival calendar does not have the correct departure calendar ID defined, so the calendars are not linked. \n\nPlease specify the correct depart calendar ID (e.g. DateInput(<ArriveCalID>, <Required>, <DateFormat>,<DefaultArriveDate>,<DepartCalID>)).')}
    }
    
}

// Builds the HTML for the calendar days
function BuildCalendarDays() {
   var Rows = 5;
   if (((this.displayed.dayCount == 31) && (this.displayed.firstDay > 4)) || ((this.displayed.dayCount == 30) && (this.displayed.firstDay == 6))) Rows = 6;
   else if ((this.displayed.dayCount == 28) && (this.displayed.firstDay == 0)) Rows = 4;
   var HTML = '<table width="' + (CellWidth * 7) + '" cellspacing="0" cellpadding="1" style="cursor:default">';
   for (var j=0;j<Rows;j++) {
      HTML += '<tr>';
      for (var i=1;i<=7;i++) {
         Day = (j * 7) + (i - this.displayed.firstDay);
         if ((Day >= 1) && (Day <= this.displayed.dayCount)) {
            if ((this.displayed.yearValue == this.picked.yearValue) && (this.displayed.monthIndex == this.picked.monthIndex) && (Day == this.picked.day)) {
               TextStyle = 'color:white;font-weight:bold;'
				BackColor = SelectedDayBGColor;
				//BP
				//if ((this.displayed.yearValue == this.picked.yearValue) && (this.displayed.monthIndex == this.picked.monthIndex) && (Day == this.picked.day)) {
				//
				//}
            }
            else {
               TextStyle = 'color:black;'
               //BP: 02/22/2005 - Shade in the cells that represent the weekend (Saturday/Sunday)
               if (i/7 == 1){
				//Only display weekends as orange from June(5) to August(7)
				if(this.displayed.monthIndex >= 5 && this.displayed.monthIndex <= 7) {
					BackColor = WeekendColor;
				}
               }
               else {
				BackColor = CalBGColor;
               }
            }
            
            //BP: 4/16/2008 - Show Booked Days
            if (Reservations!=null){
               for(x=0;x<Reservations.length;x++){
                 if ((Reservations[x].Month == eval(this.displayed.monthIndex + 1)) && (Reservations[x].Day  == Day) && (Reservations[x].Year == this.displayed.yearValue)){
                    if(BackColor != SelectedDayBGColor ){
                     BackColor = BookedColor;
                    }
                   // if( Reservations[x].Month ==4) alert(Reservations[x].Day + " " + Day)
                    break;
                 }
               }
            }
            /*if ((this.displayed.yearValue == Today.getFullYear()) && (this.displayed.monthIndex == Today.getMonth()) && (Day == Today.getDate())) {
				TextStyle += 'border:1px solid #ffffc0;padding:0px;color:black';
				BackColor = TodayColor;
            }*/
            
            //BP: 4/16/2008 - if the curent date is booked or is less than today then show as booked
            if (BackColor == BookedColor || BackColor == SelectedDayBGColor || this.displayed.yearValue < Today.getFullYear() || (this.displayed.yearValue == Today.getFullYear() && this.displayed.monthIndex < Today.getMonth())) {
                //BP: 4/16/2008 - Remove onclick event oand mouseover
                HTML += '<td align="center" class="calendarDateInput" style="height:' + CellHeight + ';width:' + CellWidth + ';' + TextStyle + ';background-color:' + BackColor + '"   onMouseOut="return ' + this.objName + '.displayed.dayHover(this,false,\'' + BackColor + '\')">' + Day + '</td>';
            }
            else {
                HTML += '<td align="center" class="calendarDateInput" style="cursor:default;height:' + CellHeight + ';width:' + CellWidth + ';' + TextStyle + ';background-color:' + BackColor + ';text-decoration:underline" onClick="' + this.objName + '.pickDay(' + Day + ')" onMouseOver="return ' + this.objName + '.displayed.dayHover(this,true,\'' + BackColor + '\',' + Day + ')" onMouseOut="return ' + this.objName + '.displayed.dayHover(this,false,\'' + BackColor + '\')">' + Day + '</td>';
            }
            BackColor = CalBGColor;//reset color
			
         }
         else HTML += '<td class="calendarDateInput" style="height:' + CellHeight + '">&nbsp;</td>';
      }
      HTML += '</tr>';
   }
   return HTML += '</table>';
}

// Determines which century to use (20th or 21st) when dealing with 2-digit years
function GetGoodYear(YearDigits) {
   if (YearDigits.length == 4) return YearDigits;
   else {
      var Millennium = (YearDigits < Y2kPivotPoint) ? 2000 : 1900;
      return Millennium + parseInt(YearDigits,10);
   }
}

// Returns the number of days in a month (handles leap-years)
function GetDayCount(SomeYear, SomeMonth) {
   return ((SomeMonth == 1) && ((SomeYear % 400 == 0) || ((SomeYear % 4 == 0) && (SomeYear % 100 != 0)))) ? 29 : MonthDays[SomeMonth];
}

// Highlights the buttons
function VirtualButton(Cell, ButtonDown) {
   if (ButtonDown) {
      Cell.style.borderLeft = 'buttonshadow 1px solid';
      Cell.style.borderTop = 'buttonshadow 1px solid';
      Cell.style.borderBottom = 'buttonhighlight 1px solid';
      Cell.style.borderRight = 'buttonhighlight 1px solid';
   }
   else {
      Cell.style.borderLeft = 'buttonhighlight 1px solid';
      Cell.style.borderTop = 'buttonhighlight 1px solid';
      Cell.style.borderBottom = 'buttonshadow 1px solid';
      Cell.style.borderRight = 'buttonshadow 1px solid';
   }
}

// Mouse-over for the previous/next month buttons
function NeighborHover(Cell, Over, DateObj) {
   if (Over) {
      VirtualButton(Cell, false);
      self.status = 'Click to view ' + DateObj.fullName;
   }
   else {
      Cell.style.border = 'buttonface 1px solid';
      self.status = '';
   }
   return true;
}

// Adds/removes days from the day list, depending on the month/year
/*
function FixDayList(DayList, NewDays) {
   var DayPick = DayList.selectedIndex + 1;
   if (NewDays != DayList.length) {
      var OldSize = DayList.length;
      for (var k=Math.min(NewDays,OldSize);k<Math.max(NewDays,OldSize);k++) {
         (k >= NewDays) ? DayList.options[NewDays] = null : DayList.options[k] = new Option(k+1, k+1);
      }
      DayPick = Math.min(DayPick, NewDays);
      DayList.options[DayPick-1].selected = true;
   }
   return DayPick;
}
*/
// Resets the year to its previous valid value when something invalid is entered
function FixYearInput(YearField) {
   var YearRE = new RegExp('\\d{' + YearField.defaultValue.length + '}');
   if (!YearRE.test(YearField.value)) YearField.value = YearField.defaultValue;
}

// Displays a message in the status bar when hovering over the calendar icon
function CalIconHover(Over) {
   var Message = (this.isShowing()) ? 'hide' : 'show';
   self.status = (Over) ? 'Click to ' + Message + ' the calendar' : '';
   return true;
}

// Starts the timer over from scratch
function CalTimerReset() {
   eval('clearTimeout(' + this.timerID + ')');
   eval(this.timerID + '=setTimeout(\'' + this.objName + '.show()\',' + (HideWait * 1000) + ')');
}

// The timer for the calendar
function DoTimer(CancelTimer) {
   if (CancelTimer) eval('clearTimeout(' + this.timerID + ')');
   else {
      eval(this.timerID + '=null');
      this.resetTimer();
   }
}

// Show or hide the calendar
function ShowCalendar() {

   if (this.isShowing()) {
      var StopTimer = true;
      this.getCalendar().style.zIndex = --ZCounter;
      this.getCalendar().style.visibility = 'hidden';
      this.fixSelects(false);
   }
   else {
      var StopTimer = false;
      this.fixSelects(true);
      this.getCalendar().style.zIndex = ++ZCounter;
      this.getCalendar().style.visibility = 'visible';
   }
   this.handleTimer(StopTimer);
   self.status = '';
}

// Hides the input elements when the "blank" month is selected
function SetElementStatus(Hide) {
   this.getDayList().style.visibility = (Hide) ? 'hidden' : 'visible';
   this.getYearField().style.visibility = (Hide) ? 'hidden' : 'visible';
   this.getCalendarLink().style.visibility = (Hide) ? 'hidden' : 'visible';
}

// Sets the date, based on the month selected
function CheckMonthChange(MonthList) {
   var DayList = this.getDayList();
   if (MonthList.options[MonthList.selectedIndex].value == '') {
      DayList.selectedIndex = 0;
      this.hideElements(true);
      this.setHidden('');
   }
   else {
      this.hideElements(false);
      if (this.isShowing()) {
         this.resetTimer(); // Gives the user more time to view the calendar with the newly-selected month
         this.getCalendar().style.zIndex = ++ZCounter; // Make sure this calendar is on top of any other calendars
      }
      var DayPick = FixDayList(DayList, GetDayCount(this.picked.yearValue, MonthList.options[MonthList.selectedIndex].value));
      this.setPicked(this.picked.yearValue, MonthList.options[MonthList.selectedIndex].value, DayPick);
   }
}

// Sets the date, based on the day selected
function CheckDayChange(DayList) {
   if (this.isShowing()) this.show();
   this.setPicked(this.picked.yearValue, this.picked.monthIndex, DayList.selectedIndex+1);
}

// Changes the date when a valid year has been entered
function CheckYearInput(YearField) {
   if ((YearField.value.length == YearField.defaultValue.length) && (YearField.defaultValue != YearField.value)) {
      if (this.isShowing()) {
         this.resetTimer(); // Gives the user more time to view the calendar with the newly-entered year
         this.getCalendar().style.zIndex = ++ZCounter; // Make sure this calendar is on top of any other calendars
      }
      var NewYear = GetGoodYear(YearField.value);
      var MonthList = this.getMonthList();
      var NewDay = FixDayList(this.getDayList(), GetDayCount(NewYear, this.picked.monthIndex));
      this.setPicked(NewYear, this.picked.monthIndex, NewDay);
      YearField.defaultValue = YearField.value;
   }
}

// Holds characteristics about a date
function dateObject() {
   this.date = (arguments.length == 1) ? new Date(arguments[0]) : new Date(arguments[0], arguments[1], arguments[2]);
   this.yearValue = this.date.getFullYear();
   this.monthIndex = this.date.getMonth();
   this.monthName = MonthNames[this.monthIndex];
   this.fullName = this.monthName + ' ' + this.yearValue;
   this.day = this.date.getDate();
   this.dayCount = GetDayCount(this.yearValue, this.monthIndex);
   var FirstDate = new Date(this.yearValue, this.monthIndex, 1);
   this.firstDay = FirstDate.getDay();

}

// Keeps track of the date that goes into the hidden field
function storedMonthObject(DateFormat, DateYear, DateMonth, DateDay) {
   dateObject.call(this, DateYear, DateMonth, DateDay);
   this.yearPad = this.yearValue.toString();
   this.monthPad = (this.monthIndex < 9) ? '0' + String(this.monthIndex + 1) : this.monthIndex + 1;
   this.dayPad = (this.day < 10) ? '0' + this.day.toString() : this.day;
   this.monthShort = this.monthName.substr(0,3).toUpperCase();
   // Formats the year value
   if (DateFormat != 'YYYYMMDD') {
      DateFormat.match(/(Y{2,4})$/);
      if (RegExp.$1.length == 2) this.yearPad = this.yearPad.substr(2);
   }
   // Formats the date
   if (/YYYYMMDD/.test(DateFormat)) this.formatted = this.yearPad + this.monthPad + this.dayPad;
   else {
      if (/MM?\/DD?\/Y{2,4}/.test(DateFormat)) var FirstPart = this.monthPad + '/' + this.dayPad + '/';
      else if (/DD?\/MM?\/Y{2,4}/.test(DateFormat)) var FirstPart = this.dayPad + '/' + this.monthPad + '/';
      else if (/DD?-((MON)|(MMM))-Y{2,4}/.test(DateFormat)) var FirstPart = this.dayPad + '-' + this.monthShort + '-';
      else if (/((MON)|(MMM))-DD?-Y{2,4}/.test(DateFormat)) var FirstPart = this.monthShort + '-' + this.dayPad + '-';
      this.formatted = FirstPart + this.yearPad;
   }
}

// Object for the current displayed month
function displayMonthObject(ParentObject, DateYear, DateMonth, DateDay) {
   dateObject.call(this, DateYear, DateMonth, DateDay);
   this.displayID = ParentObject.hiddenFieldName + '_Current_ID';
   this.getDisplay = new Function('return document.getElementById(this.displayID)');
   this.dayHover = DayCellHover;
   this.goCurrent = new Function(ParentObject.objName + '.getCalendar().style.zIndex=++ZCounter;' + ParentObject.objName + '.setDisplayed(Today.getFullYear(),Today.getMonth());');
   if (ParentObject.formNumber >= 0) this.getDisplay().innerHTML = this.fullName;
}

// Object for the previous/next buttons
function neighborMonthObject(ParentObject, IDText, DateMS) {
   dateObject.call(this, DateMS);
   this.buttonID = ParentObject.hiddenFieldName + '_' + IDText + '_ID';
   this.hover = new Function('C','O','NeighborHover(C,O,this)');
   this.getButton = new Function('return document.getElementById(this.buttonID)');
   this.go = new Function(ParentObject.objName + '.getCalendar().style.zIndex=++ZCounter;' + ParentObject.objName + '.setDisplayed(this.yearValue,this.monthIndex);');
   if (ParentObject.formNumber >= 0) this.getButton().title = this.monthName;
}

// Sets the currently-displayed month object
function SetDisplayedMonth(DispYear, DispMonth) {
   this.displayed = new displayMonthObject(this, DispYear, DispMonth, 1);
   // Creates the previous and next month objects
   //BP: 4/16/2008 - Disable previous button if date is less than today's month
   var d=new Date();
   var MonTime;
   if((this.displayed.date.getMonth() >= eval(d.getMonth()+1) && this.displayed.date.getFullYear() == d.getFullYear()) || (this.displayed.date.getFullYear() != d.getFullYear()) ){
    MonTime = 86400000
   }
   else {
    MonTime = 0
   }
   this.previous = new neighborMonthObject(this, 'Previous', this.displayed.date.getTime() - MonTime);//BP: 4/16/2008 - Disable previous button if date is less than today's month
   this.next = new neighborMonthObject(this, 'Next', this.displayed.date.getTime() + (86400000 * (this.displayed.dayCount + 1)));
   // Creates the HTML for the calendar
   if (this.formNumber >= 0) this.getDayTable().innerHTML = this.buildCalendar();
}

// Sets the current selected date
function SetPickedMonth(PickedYear, PickedMonth, PickedDay) {
   this.picked = new storedMonthObject(this.format, PickedYear, PickedMonth, PickedDay);
   this.setHidden(this.picked.formatted);
   this.setDisplayed(PickedYear, PickedMonth);
}

// The calendar object
//BP: 3/25/2008- added 'DepartDateName'
function calendarObject(DateName, DateFormat, DefaultDate, DepartDateName, DefaultDepartDate) {

   /* Properties */
   this.hiddenFieldName = DateName ;
   this.monthListName = DateName + '_Month';
   this.getDateID = DateName;
   this.dayListID = DateName + '_Day_ID';
   this.yearFieldID = DateName + '_Year_ID';
   this.monthDisplayID = DateName + '_Current_ID';
   this.calendarID = DateName + '_ID';
   this.dayTableID = DateName + '_DayTable_ID';
   this.calendarLinkID = this.calendarID + '_Link';
   this.timerID = this.calendarID + '_Timer';
   this.objName = DateName + '_Object';
   this.format = DateFormat;
   this.formNumber = -1;
   this.picked = null;
   this.displayed = null;
   this.previous = null;
   this.next = null;
   this.getDepartDateID = DepartDateName;  //BP: 3/25/2008 -added property
   this.getDefaultDepartDate = DefaultDepartDate;//BP: 3/25/2008 -added property expressed in days from arrival date (not an actual date)

   /* Methods */
   this.setPicked = SetPickedMonth;
   this.setDisplayed = SetDisplayedMonth;
   this.checkYear = CheckYearInput;
   this.fixYear = FixYearInput;
   this.changeMonth = CheckMonthChange;
   this.changeDay = CheckDayChange;
   this.resetTimer = CalTimerReset;
   this.hideElements = SetElementStatus;
   this.show = ShowCalendar;
   this.handleTimer = DoTimer;
   this.iconHover = CalIconHover;
   this.buildCalendar = BuildCalendarDays;
   this.pickDay = PickDisplayDay;
   this.fixSelects = FixSelectLists;
   this.setHidden = new Function('D','if (this.formNumber >= 0) this.getHiddenField().value=D');
   // Returns a reference to these elements
   this.getHiddenField = new Function('return document.forms[this.formNumber].elements[this.hiddenFieldName]');
   this.getMonthList = new Function('return document.forms[this.formNumber].elements[this.monthListName]');
    this.getDateField = new Function('return document.getElementById(this.getDateID)'); //BP:3/17/2008 - Append "_dt" to variable name in order to avoid conflicts from hidden field
   this.getDayList = new Function('return document.getElementById(this.dayListID)');
   this.getYearField = new Function('return document.getElementById(this.yearFieldID)');
   this.getCalendar = new Function('return document.getElementById(this.calendarID)');
   this.getDayTable = new Function('return document.getElementById(this.dayTableID)');
   this.getCalendarLink = new Function('return document.getElementById(this.calendarLinkID)');
   this.getMonthDisplay = new Function('return document.getElementById(this.monthDisplayID)');
   this.isShowing = new Function('return !(this.getCalendar().style.visibility != \'visible\')');

   /* Constructor */
   // Functions used only by the constructor
   function getMonthIndex(MonthAbbr) { // Returns the index (0-11) of the supplied month abbreviation
      for (var MonPos=0;MonPos<MonthNames.length;MonPos++) {
         if (MonthNames[MonPos].substr(0,3).toUpperCase() == MonthAbbr.toUpperCase()) break;
      }
      return MonPos;
   }
   function SetGoodDate(CalObj, Notify) { // Notifies the user about their bad default date, and sets the current system date
      CalObj.setPicked(Today.getFullYear(), Today.getMonth(), Today.getDate());
     // if (Notify) alert('WARNING: The supplied date is not in valid \'' + DateFormat + '\' format: ' + DefaultDate + '.\nTherefore, the current system date will be used instead: ' + CalObj.picked.formatted);
   }
   // Main part of the constructor
   if (DefaultDate == 'undefined') SetGoodDate(this, false);
   else {
      if (this.format == 'YYYYMMDD') {
         (/^\d{8}$/.test(DefaultDate)) ? this.setPicked(DefaultDate.substr(0,4), parseInt(DefaultDate.substr(4,2),10)-1, DefaultDate.substr(6,2)) : SetGoodDate(this, true);
      }
      else {
         if (/\//.test(this.format)) {
            if (/^(\d{1,2})\/(\d{1,2})\/(\d{2,4})$/.test(DefaultDate)) {
               if (this.format.substr(0,1) == 'M') {
                  var MonPart = RegExp.$1;
                  var DayPart = RegExp.$2;
               }
               else {
                  var MonPart = RegExp.$2;
                  var DayPart = RegExp.$1;
               }
               this.setPicked(GetGoodYear(RegExp.$3), parseInt(MonPart,10)-1, DayPart);
            }
            else SetGoodDate(this, true);
         }
         else if (/-/.test(this.format)) {
            var REMonths = '';
            for (var j=0;j<MonthNames.length;j++) {
               if (j > 0) REMonths += '|';
               REMonths += MonthNames[j].substr(0,3).toUpperCase();
            }
            if (this.format.substr(0,1) == 'D') {
               var DateRE = new RegExp('^(\\d{1,2})-(' + REMonths + ')-(\\d{2,4})$', 'i');
               (DateRE.test(DefaultDate)) ? this.setPicked(GetGoodYear(RegExp.$3), getMonthIndex(RegExp.$2), RegExp.$1) : SetGoodDate(this, true);
            }
            else {
               var DateRE = new RegExp('^(' + REMonths + ')-(\\d{1,2})-(\\d{2,4})$', 'i');
               (DateRE.test(DefaultDate)) ? this.setPicked(GetGoodYear(RegExp.$3), getMonthIndex(RegExp.$1), RegExp.$2) : SetGoodDate(this, true);
            }
         }
      }
   }
}

// Main function that creates the form elements
//BP:3/25/2008 - Modified signature to accept a depart date calendar name (DepartDateName) in order to link calendars based on the selected arrival date
function DateInput(DateName, Required, DateFormat, DefaultDate, DepartDateName, DefaultDepartDate) {
CalId = DateName;
   if (DateName == undefined) document.writeln('<span style="color:red;font-size:' + FontSize + 'px;font-family:' + FontFamily + ';">ERROR: Missing required parameter in call to \'DateInput\': [name of hidden date field].</span>');
   else {
      if (Required == undefined) Required = false;
      if (DateFormat == undefined) DateFormat = DefaultDateFormat;
      else if ((/^YYYYMMDD$/i.test(DateFormat)) || (/^((MM?)|(DD?))\/((MM?)|(DD?))\/Y{2,4}$/i.test(DateFormat)) || (/^((DD?)|((MON)|(MMM)))-((DD?)|((MON)|(MMM)))-Y{2,4}$/i.test(DateFormat))) DateFormat = DateFormat.toUpperCase();
      else {
         var AlertMessage = 'WARNING: The supplied date format for the \'' + DateName + '\' field is not valid: ' + DateFormat + '\nTherefore, the default date format will be used instead: ' + DefaultDateFormat;
         var CurrentDate = new storedMonthObject(DefaultDateFormat, Today.getFullYear(), Today.getMonth(), Today.getDate());
         if (DefaultDate != undefined) AlertMessage += '\n\nThe supplied date cannot be interpreted with the invalid format.\nTherefore, the current system date will be used instead: ' + CurrentDate.formatted;
         DateFormat = DefaultDateFormat;
         DefaultDate = CurrentDate.formatted;
         alert(AlertMessage);
      }
    
      // Creates the calendar object!
      eval(DateName + '_Object=new calendarObject(\'' + DateName + '\',\'' + DateFormat + '\',\'' + DefaultDate + '\',\'' + DepartDateName + '\',' + DefaultDepartDate + ')'); //BP: 3/25/2008- added 'DepartDateName', 'DefaultDepartDate'
      if ((!Required) && (DefaultDate == undefined)) {
         var InitialStatus = ' style="visibility:hidden"';
         var InitialDate = '';
      }
      else {
         var InitialStatus = '';
         var InitialDate = eval(DateName + '_Object.picked.formatted');
      }
      if ((Required) && (DefaultDate == undefined)) DefaultDate = eval(DateName + '_Object.picked.formatted');
      // Create the form elements
      with (document) {
       
		
       
         writeln('<table cellpadding="0" cellspacing="2"><tr>' + String.fromCharCode(13) + '<td valign="middle">');
        /*
         writeln('<select name="' + DateName + '_Month" class="calendarDateInput" onChange="' + DateName + '_Object.changeMonth(this)">');
         if (!Required) {
            var NoneSelected = (DefaultDate == undefined) ? ' selected' : '';
            writeln('<option value=""' + NoneSelected + '></option>');
         }
         for (var i=0;i<12;i++) {
            MonthSelected = ((DefaultDate != undefined) && (eval(DateName + '_Object.picked.monthIndex=='+i))) ? ' selected' : '';
            writeln('<option value="' + i + '"' + MonthSelected + '>' + MonthNames[i].substr(0,3) + '</option>');
         }
         writeln('</select>' + String.fromCharCode(13) + '</td>' + String.fromCharCode(13) + '<td valign="middle">');
         writeln('<select' + InitialStatus + ' class="calendarDateInput" id="' + DateName + '_Day_ID" onChange="' + DateName + '_Object.changeDay(this)">');
         for (var j=1;j<=eval(DateName + '_Object.picked.dayCount');j++) {
            DaySelected = ((DefaultDate != undefined) && eval(DateName + '_Object.picked.day=='+j)) ? ' selected' : '';
            writeln('<option' + DaySelected + '>' + j + '</option>');
         }
         writeln('</select>' + String.fromCharCode(13) + '</td>' + String.fromCharCode(13) + '<td valign="middle">');
         */
        // writeln('<input' + InitialStatus + ' class="calendarDateInput" type="text" id="' + DateName + '_Year_ID" size="' + eval(DateName + '_Object.picked.yearPad.length') + '" maxlength="' + eval(DateName + '_Object.picked.yearPad.length') + '" title="Year" value="' + eval(DateName + '_Object.picked.yearPad') + '" onKeyPress="return NumOnly(event)" onKeyUp="' + DateName + '_Object.checkYear(this)" onBlur="' + DateName + '_Object.fixYear(this)">');

            //BP:3/17/2008 - Append "_dt" to variable name in order to avoid conflicts from hidden field
      
        // writeln('<input  id="' + DateName + '" name="' + DateName + '" type="text" value="' + DefaultDate + '" style="width:100px">') //BP: 3/18/2008 - added default date
         //writeln('<input  id="' + DateName + '_dt" name="' + DateName + '_dt" type="text"  style="width:100px">')
         
         //BP:4/18/2008 - removed hidden field and added only the textbox
          writeln('<input type="text" id="' + DateName + '"  name="' + DateName  + '" value="' + InitialDate + '" style="width:100px">');
         // this.form.orderdate.value = InitialDate;
         // Find this form number
         for (var f=0;f<forms.length;f++) {
            for (var e=0;e<forms[f].elements.length;e++) {
               if (typeof forms[f].elements[e].type == 'string') {
                  if ((forms[f].elements[e].name == DateName)) {
                     eval(DateName + '_Object.formNumber='+f);
                     break;
                  }
               }
            }
         }
         writeln('<input' + InitialStatus + ' class="calendarDateInput" type="hidden" id="' + DateName + '_Year_ID"')
         write('<td>' + String.fromCharCode(13) + '<a' + InitialStatus + ' id="' + DateName + '_ID_Link" href="javascript:' + DateName + '_Object.show()" onMouseOver="return ' + DateName + '_Object.iconHover(true)" onMouseOut="return ' + DateName + '_Object.iconHover(false)"><img src="' + ImageURL + '"  title="Calendar" border="0" align="middle"></a>&nbsp;');
         writeln('</td><tr><td><span  id="' + DateName + '_ID" style="position:absolute;visibility:hidden;width:' + (CellWidth * 7) + 'px;background-color:' + CalBGColor + ';border:1px solid dimgray;" onMouseOver="' + DateName + '_Object.handleTimer(true)" onMouseOut="' + DateName + '_Object.handleTimer(false)">');
         
         //Cal#1
         writeln('<table width="' + (CellWidth * 7) + '" cellspacing="0" cellpadding="1">' + String.fromCharCode(13) + '<tr style="background-color:' + TopRowBGColor + ';">');
         writeln('<td id="' + DateName + '_Previous_ID" style="cursor:default" align="center" class="calendarDateInput" style="height:' + CellHeight + '" onClick="' + DateName + '_Object.previous.go();MonthClicked=true;" onMouseDown="VirtualButton(this,true)" onMouseUp="VirtualButton(this,false)" onMouseOver="return ' + DateName + '_Object.previous.hover(this,true)" onMouseOut="return ' + DateName + '_Object.previous.hover(this,false)" title="' + eval(DateName + '_Object.previous.monthName') + '"><img src="' + PrevURL + '" ></td>'); //BP: 02/22/2005 - changed dimensions of new graphic
         writeln('<td id="' + DateName + '_Current_ID" style="cursor:pointer" align="center" class="calendarDateInput" style="height:' + CellHeight + '" colspan="5" onClick="' + DateName + '_Object.displayed.goCurrent()" onMouseOver="self.status=\'Click to view ' + eval(DateName + '_Object.displayed.fullName') + '\';return true;" onMouseOut="self.status=\'\';return true;" title="Show Current Month">' + eval(DateName + '_Object.displayed.fullName') + '</td>');
         writeln('<td id="' + DateName + '_Next_ID" style="cursor:default" align="center" class="calendarDateInput" style="height:' + CellHeight + '" onClick="' + DateName + '_Object.next.go();MonthClicked=true" onMouseDown="VirtualButton(this,true)" onMouseUp="VirtualButton(this,false)" onMouseOver="return ' + DateName + '_Object.next.hover(this,true)" onMouseOut="return ' + DateName + '_Object.next.hover(this,false)" title="' + eval(DateName + '_Object.next.monthName') + '"><img src="' + NextURL + '" ></td></tr>' + String.fromCharCode(13) + '<tr>'); //BP: 02/22/2005 - changed dimensions of new graphic
         for (var w=0;w<7;w++) writeln('<td width="18" align="center" class="calendarDateInput" style="height:' + CellHeight + ';width:' + CellWidth + ';font-weight:bold;border-top:1px solid dimgray;border-bottom:1px solid dimgray;">' + WeekDays[w] + '</td>');
         writeln('</tr>' + String.fromCharCode(13) + '</table>' + String.fromCharCode(13) + '<span id="' + DateName + '_DayTable_ID">' + eval(DateName + '_Object.buildCalendar()') + '</span>' + String.fromCharCode(13) + '</span>' + String.fromCharCode(13) + '</td>' + String.fromCharCode(13) + '</tr>' + String.fromCharCode(13) + '</table>');

         //Cal#2
         /*writeln('<table cellpadding="0" cellspacing="2"><tr>' + String.fromCharCode(13) + '<td valign="middle">');
         
         writeln('<tr><td><span  id="' + DateName + '_ID" style="position:absolute;width:' + (CellWidth * 7) + 'px;background-color:' + CalBGColor + ';border:1px solid dimgray;" onMouseOver="' + DateName + '_Object.handleTimer(true)" onMouseOut="' + DateName + '_Object.handleTimer(false)">');
         writeln('<table width="' + (CellWidth * 7) + '" cellspacing="0" cellpadding="1">' + String.fromCharCode(13) + '<tr style="background-color:' + TopRowBGColor + ';">');
         writeln('<td id="' + DateName + '_Previous_ID" style="cursor:default" align="center" class="calendarDateInput" style="height:' + CellHeight + '" onClick="' + DateName + '_Object.previous.go();MonthClicked=true;" onMouseDown="VirtualButton(this,true)" onMouseUp="VirtualButton(this,false)" onMouseOver="return ' + DateName + '_Object.previous.hover(this,true)" onMouseOut="return ' + DateName + '_Object.previous.hover(this,false)" title="' + eval(DateName + '_Object.previous.monthName') + '"><img src="' + PrevURL + '" ></td>'); //BP: 02/22/2005 - changed dimensions of new graphic
         writeln('<td id="' + DateName + '_Current_ID" style="cursor:pointer" align="center" class="calendarDateInput" style="height:' + CellHeight + '" colspan="5" onClick="' + DateName + '_Object.displayed.goCurrent()" onMouseOver="self.status=\'Click to view ' + eval(DateName + '_Object.displayed.fullName') + '\';return true;" onMouseOut="self.status=\'\';return true;" title="Show Current Month">' + eval(DateName + '_Object.displayed.fullName') + '</td>');
         writeln('<td id="' + DateName + '_Next_ID" style="cursor:default" align="center" class="calendarDateInput" style="height:' + CellHeight + '" onClick="' + DateName + '_Object.next.go();MonthClicked=true" onMouseDown="VirtualButton(this,true)" onMouseUp="VirtualButton(this,false)" onMouseOver="return ' + DateName + '_Object.next.hover(this,true)" onMouseOut="return ' + DateName + '_Object.next.hover(this,false)" title="' + eval(DateName + '_Object.next.monthName') + '"><img src="' + NextURL + '" ></td></tr>' + String.fromCharCode(13) + '<tr>'); //BP: 02/22/2005 - changed dimensions of new graphic
         for (var w=0;w<7;w++) writeln('<td width="18" align="center" class="calendarDateInput" style="height:' + CellHeight + ';width:' + CellWidth + ';font-weight:bold;border-top:1px solid dimgray;border-bottom:1px solid dimgray;">' + WeekDays[w] + '</td>');
         writeln('</tr>' + String.fromCharCode(13) + '</table>' + String.fromCharCode(13) + '<span id="' + DateName + '_DayTable_ID">' + eval(DateName + '_Object.buildCalendar()') + '</span>' + String.fromCharCode(13) + '</span>' + String.fromCharCode(13) + '</td>' + String.fromCharCode(13) + '</tr>' + String.fromCharCode(13) + '</table>');
    */
      }
   }
}

//BP: 6/12/2008 - hide calendar when user clicks any where off of the calendar
function HideCalendar(){
    //var thisCal = document.getElementById(CalId);
    //alert(MonthClicked)
    if (CalId != null) {
        if(MonthClicked ==false && eval(CalId + '_Object.isShowing()')){
            eval(CalId + '_Object.show()')
        }
    }
    MonthClicked = false;
}
//window.onclick=HideCalendar;
window.document.onclick=HideCalendar;