//Javascript name: My Date Time Picker
//Date created: 16-Nov-2003 23:19
//Scripter: TengYong Ng
//Website: http://www.rainforestnet.com
//Copyright (c) 2003 TengYong Ng
//FileName: DateTimePicker.js
//Version: 0.8
//Contact: contact@rainforestnet.com
// Note: Permission given to use this script in ANY kind of applications if
//       header lines are left unchanged.
//

//	The following instructions are assuming that you are adding the Date Time Picker
//	javascript control to an ASP.Net 1.0 or newer page 
//  Add the following script entry to your page...
//
//		<script language=javascript src=<PATH>/datetimepicker.js></script>
//

//	Add the following control to allow the use of the javascript control.
//
//		<asp:HyperLink id="hlnkDueDate" runat="server" ImageUrl="imgs/cal.gif">HyperLink</asp:HyperLink>
//

//	Add the following line into your page.load event to hook up this calendar control to your hyperlink
//
//		<htmlctrlname>.NavigateUrl = string.Format("javascript:NewCal('{0}','mmddyyyy', false, 24)", <txtboxctrlname>.ClientID.ToString());
//

//Global variables
var winCal;
var dtToday=new Date();
var Cal;
var docCal;
var MonthName=["January", "February", "March", "April", "May", "June","July", 
	"August", "September", "October", "November", "December"];
var WeekDayName=["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"];	
var exDateTime;//Existing Date and Time
var bRelative=false;
var bShowRelative=false;

//Configurable parameters
var cnTop="200";//top coordinate of calendar window.
var cnLeft="500";//left coordinate of calendar window
var WindowTitle ="Date Selector";//Date Time Picker title.
var WeekChar=2;//number of character for week day. if 2 then Mo,Tu,We. if 3 then Mon,Tue,Wed.
var CellWidth=20;//Width of day cell.
var DateSeparator="/";//Date Separator, you can change it to "/" if you want.
var TimeMode=24;//default TimeMode value. 12 or 24

var ShowLongMonth=true;//Show long month name in Calendar header. example: "January".
var ShowMonthYear=false;//Show Month and Year in Calendar header.
var MonthYearColor="#cc0033";//Font Color of Month and Year in Calendar header.
var WeekHeadColor="#0099CC";//Background Color in Week header.
var SundayColor="#6699FF";//Background color of Sunday.
var SaturdayColor="#CCCCFF";//Background color of Saturday.
var WeekDayColor="white";//Background color of weekdays.
var FontColor="blue";//color of font in Calendar day cell.
var TodayColor="#FFFF33";//Background color of today.
var SelDateColor="#FFFF99";//Backgrond color of selected date in textbox.
var YrSelColor="#cc0033";//color of font of Year selector.
var ThemeBg="";//Background image of Calendar window.
//end Configurable parameters
//end Global variable

function NewCal(pCtrl,pFormat,pShowTime,pTimeMode)
{
  try
  {
	Cal=new Calendar(dtToday);
	if ((pShowTime!=null) && (pShowTime))
	{
		Cal.ShowTime=true;
		if ((pTimeMode!=null) &&((pTimeMode=='12')||(pTimeMode=='24')))
		{
			TimeMode=pTimeMode;
		}		
	}	

	if(pCtrl.length == null)
	{
	    Cal.Ctrl = pCtrl;
	    exDateTime = pCtrl.value;
	}
	else
	{
	    Cal.Ctrl = document.getElementById(pCtrl);
	    exDateTime = document.getElementById(pCtrl).value;
	}
		
	if (pFormat!=null)
		Cal.Format=pFormat.toUpperCase();		
	
	exDateTime = exDateTime.replace(' ', '');

	var exDateTimeSave = exDateTime;
	bRelative=false;

	if(exDateTime.toLowerCase().indexOf('today')==0 || exDateTime.indexOf('+')==0 || exDateTime.indexOf('-')==0)
	{
		exDateTime = exDateTime.toLowerCase().replace('today', '');
		bRelative=true;
		//var dayInc = exDateTime.substring(1, exDateTime.length);
		var dayInc = parseInt(exDateTime)
		var dInc = new Date ((new Date()).getTime() + dayInc*24*60*60*1000);
		exDateTime = dInc.getMonth()+1 + '/' + dInc.getDate() + '/' + dInc.getFullYear();
	}
	if (exDateTime!="")//Parse Date String
	{
		var Sp1;//Index of Date Separator 1
		var Sp2;//Index of Date Separator 2 
		var tSp1;//Index of Time Separator 1
		var tSp1;//Index of Time Separator 2
		var strMonth;
		var strDate;
		var strYear;
		var intMonth;
		var YearPattern;
		var strHour;
		var strMinute;
		var strSecond;
		//parse month
		Sp1=exDateTime.indexOf(DateSeparator,0)
		Sp2=exDateTime.indexOf(DateSeparator,(parseInt(Sp1)+1));
		
		if ((Cal.Format.toUpperCase()=="DDMMYYYY") || (Cal.Format.toUpperCase()=="DDMMMYYYY"))
		{
			strMonth=exDateTime.substring(Sp1+1,Sp2);
			strDate=exDateTime.substring(0,Sp1);
		}
		else if ((Cal.Format.toUpperCase()=="MMDDYYYY") || (Cal.Format.toUpperCase()=="MMMDDYYYY"))
		{
			strMonth=exDateTime.substring(0,Sp1);
			strDate=exDateTime.substring(Sp1+1,Sp2);
		}
		if (isNaN(strMonth))
			intMonth=Cal.GetMonthIndex(strMonth);
		else
			intMonth=parseInt(strMonth,10)-1;	
		if ((parseInt(intMonth,10)>=0) && (parseInt(intMonth,10)<12))
			Cal.Month=intMonth;
		//end parse month
		//parse Date
		if ((parseInt(strDate,10)<=Cal.GetMonDays()) && (parseInt(strDate,10)>=1))
			Cal.Date=strDate;
		//end parse Date
		//parse year
		strYear=exDateTime.substring(Sp2+1,Sp2+5);
		YearPattern=/^\d{4}$/;
		if (YearPattern.test(strYear))
			Cal.Year=parseInt(strYear,10);
		//end parse year
		//parse time
		if (Cal.ShowTime==true)
		{
			tSp1=exDateTime.indexOf(":",0)
			tSp2=exDateTime.indexOf(":",(parseInt(tSp1)+1));
			strHour=exDateTime.substring(tSp1,(tSp1)-2);
			Cal.SetHour(strHour);
			strMinute=exDateTime.substring(tSp1+1,tSp2);
			Cal.SetMinute(strMinute);
			strSecond=exDateTime.substring(tSp2+1,tSp2+3);
			Cal.SetSecond(strSecond);
		}
	}
	
    if(winCal != null && !winCal.closed) winCal.close();
	
	winCal=window.open("","DateTimePicker","toolbar=0,status=0,menubar=0,fullscreen=no,width=210,height=260,resizable=0,top="+cnTop+",left="+cnLeft);
	docCal=winCal.document;
	RenderCal();
	exDateTime = exDateTimeSave;
  }
  catch(e)
  {
    alert('NewCal' + e);
  }
}

function RenderCal()
{
	var vCalHeader;
	var vCalData;
	var vCalTime;
	var i;
	var j;
	var SelectStr;
	var vDayCount=0;
	var vFirstDay;

	docCal.open();
	docCal.writeln("<html><head><title>"+WindowTitle+"</title>");
	docCal.writeln("<script>var winMain=window.opener;</script>");
	docCal.writeln("</head><body onUnload='javascript:myClose();' background='"+ThemeBg+"' link="+FontColor+" vlink="+FontColor+"><form name='Calendar'>");

	vCalHeader="<table border=1 cellpadding=1 cellspacing=1 width='100%' align=\"center\" valign=\"top\">\n";
	//Month Selector
	vCalHeader+="<tr>\n<td colspan='7'><table border=0 width='100%' cellpadding=0 cellspacing=0><tr><td align='left'>\n";
	vCalHeader+="<select name=\"MonthSelector\" onChange=\"javascript:winMain.Cal.SwitchMth(this.selectedIndex);winMain.RenderCal();\">\n";
	for (i=0;i<12;i++)
	{
		if (i==Cal.Month)
			SelectStr="Selected";
		else
			SelectStr="";	
		vCalHeader+="<option "+SelectStr+" value >"+MonthName[i]+"\n";
	}
	vCalHeader+="</select></td>";
	//Year selector
	vCalHeader+="\n<td align='right'><a href=\"javascript:winMain.Cal.DecYear();winMain.RenderCal()\"><b><font color=\""+YrSelColor+"\"><</font></b></a><font face=\"Verdana\" color=\""+YrSelColor+"\" size=2><b> "+Cal.Year+" </b></font><a href=\"javascript:winMain.Cal.IncYear();winMain.RenderCal()\"><b><font color=\""+YrSelColor+"\">></font></b></a></td></tr></table></td>\n";	
	vCalHeader+="</tr>";
	//Calendar header shows Month and Year
	if (ShowMonthYear)
		vCalHeader+="<tr><td colspan='7'><font face='Verdana' size='2' align='center' color='"+MonthYearColor+"'><b>"+Cal.GetMonthName(ShowLongMonth)+" "+Cal.Year+"</b></font></td></tr>\n";
	//Week day header
	vCalHeader+="<tr bgcolor="+WeekHeadColor+">";
	for (i=0;i<7;i++)
	{
		vCalHeader+="<td align='center'><font face='Verdana' size='2'>"+WeekDayName[i].substr(0,WeekChar)+"</font></td>";
	}
	vCalHeader+="</tr>";	
	docCal.write(vCalHeader);
	
	//Calendar detail
	CalDate=new Date(Cal.Year,Cal.Month);
	CalDate.setDate(1);
	vFirstDay=CalDate.getDay();
	vCalData="<tr>";
	for (i=0;i<vFirstDay;i++)
	{
		vCalData=vCalData+GenCell();
		vDayCount=vDayCount+1;
	}
	for (j=1;j<=Cal.GetMonDays();j++)
	{
		var strCell;
		vDayCount=vDayCount+1;
		if ((j==dtToday.getDate())&&(Cal.Month==dtToday.getMonth())&&(Cal.Year==dtToday.getFullYear()))
			strCell=GenCell(j,true,TodayColor);//Highlight today's date
		else
		{
			if (j==Cal.Date)
			{
				strCell=GenCell(j,true,SelDateColor);
			}
			else
			{	 
				if (vDayCount%7==0)
					strCell=GenCell(j,false,SaturdayColor);
				else if ((vDayCount+6)%7==0)
					strCell=GenCell(j,false,SundayColor);
				else
					strCell=GenCell(j,null,WeekDayColor);
			}		
		}						
		vCalData=vCalData+strCell;

		if((vDayCount%7==0)&&(j<Cal.GetMonDays()))
		{
			vCalData=vCalData+"</tr>\n<tr>";
		}
	}
	docCal.writeln(vCalData);	
	//Time picker
	if (Cal.ShowTime)
	{
		var showHour;
		showHour=Cal.getShowHour();		
		vCalTime="<tr>\n<td colspan='7' align='center'>";
		vCalTime+="<input type='text' name='hour' maxlength=2 size=1 style=\"WIDTH: 22px\" value="+showHour+" onchange=\"javascript:winMain.Cal.SetHour(this.value)\">";
		vCalTime+=" : ";
		vCalTime+="<input type='text' name='minute' maxlength=2 size=1 style=\"WIDTH: 22px\" value="+Cal.Minutes+" onchange=\"javascript:winMain.Cal.SetMinute(this.value)\">";
		vCalTime+=" : ";
		vCalTime+="<input type='text' name='second' maxlength=2 size=1 style=\"WIDTH: 22px\" value="+Cal.Seconds+" onchange=\"javascript:winMain.Cal.SetSecond(this.value)\">";
		if (TimeMode==12)
		{
			var SelectAm =(parseInt(Cal.Hours,10)<12)? "Selected":"";
			var SelectPm =(parseInt(Cal.Hours,10)>=12)? "Selected":"";

			vCalTime+="<select name=\"ampm\" onchange=\"javascript:winMain.Cal.SetAmPm(this.options[this.selectedIndex].value);\">";
			vCalTime+="<option "+SelectAm+" value=\"AM\">AM</option>";
			vCalTime+="<option "+SelectPm+" value=\"PM\">PM<option>";
			vCalTime+="</select>";
		}	
		vCalTime+="\n</td>\n</tr>";
		docCal.write(vCalTime);
	}	
	//end time picker
	docCal.writeln("\n</table>");

	docCal.writeln("\n<table width=100%>");
	docCal.writeln("\n	<tr>");
	
	if (bShowRelative)
	{
		if(bRelative)
		{
			docCal.writeln("\n		<td><INPUT id='idCalType0' type='radio' name='idCalType'>&nbsp;Absolute</td>");
			docCal.writeln("\n		<td><INPUT id='idCalType1' type='radio' CHECKED name='idCalType'>&nbsp;Relative</td>");
		}
		else
		{
			docCal.writeln("\n		<td><INPUT id='idCalType0' type='radio' CHECKED name='idCalType'>&nbsp;Absolute</td>");
			docCal.writeln("\n		<td><INPUT id='idCalType1' type='radio' name='idCalType'>&nbsp;Relative</td>");
		}
	}

	docCal.writeln("\n	</tr>");
	docCal.writeln("\n	<tr>");
	docCal.writeln("\n		<td colspan=2 align='center'>");
	docCal.writeln("\n		<INPUT id='btnCancel' onClick='bCancel=true;window.close();' type='button' value='Cancel' name='btnCancel'></td>");
	docCal.writeln("\n	</tr>");
	docCal.writeln("\n</table>	");

	docCal.writeln("</form></body></html>");
	
	docCal.writeln("<script lang=javascript>");
	docCal.writeln("    var bCancel=false; ");
	docCal.writeln("function myClose ()");
	docCal.writeln("{");
	docCal.writeln(" var calType = document.getElementById('idCalType1')");
	docCal.writeln(" var txtCal = winMain.document.getElementById('"+Cal.Ctrl.id+"'); ");
	docCal.writeln(" if(calType.checked && !bCancel )");
	docCal.writeln(" {	");
	docCal.writeln("    winMain.acceptDate(txtCal);");
	docCal.writeln("	var datdate1 = Date.parse(txtCal.value);  ");
	docCal.writeln("	var datdate2 = new Date();  ");
	docCal.writeln("	var datediff = Math.ceil((datdate1-datdate2)/(24*60*60*1000));  ");
	docCal.writeln("	txtCal.value='today+' + datediff;");
	docCal.writeln("	txtCal.value=txtCal.value.replace('+-', '-');  ");
	docCal.writeln(" }	");
	docCal.writeln("    try{txtCal.parentNode.fieldBlur();}catch(e){}");
	docCal.writeln("}");
	docCal.writeln("</script>");
	
	docCal.close();
}

function GenCell(pValue,pHighLight,pColor)//Generate table cell with value
{
	var PValue;
	var PCellStr;
	var vColor;
	var vHLstr1;//HighLight string
	var vHlstr2;
	var vTimeStr;
	
	if (pValue==null)
		PValue="";
	else
		PValue=pValue;
	
	if (pColor!=null)
		vColor="bgcolor=\""+pColor+"\"";
	else
		vColor="";	
	if ((pHighLight!=null)&&(pHighLight))
		{vHLstr1="color='red'><b>";vHLstr2="</b>";}
	else
		{vHLstr1=">";vHLstr2="";}	
	
	if (Cal.ShowTime)
	{
		vTimeStr="winMain.document.getElementById('"+Cal.Ctrl.id+"').value+=' '+"+"winMain.Cal.getShowHour()"+"+':'+"+"winMain.Cal.Minutes"+"+':'+"+"winMain.Cal.Seconds";
		if (TimeMode==12)
			vTimeStr+="+' '+winMain.Cal.AMorPM";
	}	
	else
		vTimeStr="";		
	PCellStr="<td "+vColor+" width="+CellWidth+" align='center'><font face='verdana' size='2'"+vHLstr1+"<a href=\"javascript:winMain.document.getElementById('"+Cal.Ctrl.id+"').value='"+Cal.FormatDate(PValue)+"';"+vTimeStr+";window.close();\">"+PValue+"</a>"+vHLstr2+"</font></td>";
	return PCellStr;
}

function Calendar(pDate,pCtrl)
{
	//Properties
	this.Date=pDate.getDate();//selected date
	this.Month=pDate.getMonth();//selected month number
	this.Year=pDate.getFullYear();//selected year in 4 digits
	this.Hours=pDate.getHours();	
	
	if (pDate.getMinutes()<10)
		this.Minutes="0"+pDate.getMinutes();
	else
		this.Minutes=pDate.getMinutes();
	
	if (pDate.getSeconds()<10)
		this.Seconds="0"+pDate.getSeconds();
	else		
		this.Seconds=pDate.getSeconds();
		
	this.MyWindow=winCal;
	this.Ctrl=pCtrl;
	this.Format="ddMMyyyy";
	this.Separator=DateSeparator;
	this.ShowTime=false;
	if (pDate.getHours()<12)
		this.AMorPM="AM";
	else
		this.AMorPM="PM";	
}

function GetMonthIndex(shortMonthName)
{
	for (i=0;i<12;i++)
	{
		if (MonthName[i].substring(0,3).toUpperCase()==shortMonthName.toUpperCase())
		{	return i;}
	}
}
Calendar.prototype.GetMonthIndex=GetMonthIndex;

function IncYear()
{	
	Cal.Year++;
}

Calendar.prototype.IncYear=IncYear;

function DecYear()
{	
	Cal.Year--;
}

Calendar.prototype.DecYear=DecYear;
	
function SwitchMth(intMth)
{	
	Cal.Month=intMth;
}

Calendar.prototype.SwitchMth=SwitchMth;

function SetHour(intHour)
{	
	var MaxHour;
	var MinHour;
	if (TimeMode==24)
	{	MaxHour=23;MinHour=0}
	else if (TimeMode==12)
	{	MaxHour=12;MinHour=1}
	else
		alert("TimeMode can only be 12 or 24");		
	var HourExp=new RegExp("^\\d\\d$");
	if (HourExp.test(intHour) && (parseInt(intHour,10)<=MaxHour) && (parseInt(intHour,10)>=MinHour))
	{	
		if ((TimeMode==12) && (Cal.AMorPM=="PM"))
		{
			if (parseInt(intHour,10)==12)
				Cal.Hours=12;
			else	
				Cal.Hours=parseInt(intHour,10)+12;
		}	
		else if ((TimeMode==12) && (Cal.AMorPM=="AM"))
		{
			if (intHour==12)
				intHour-=12;
			Cal.Hours=parseInt(intHour,10);
		}
		else if (TimeMode==24)
			Cal.Hours=parseInt(intHour,10);	
	}
}
Calendar.prototype.SetHour=SetHour;

function SetMinute(intMin)
{
	var MinExp=new RegExp("^\\d\\d$");
	if (MinExp.test(intMin) && (intMin<60))
		Cal.Minutes=intMin;
}
Calendar.prototype.SetMinute=SetMinute;

function SetSecond(intSec)
{	
	var SecExp=new RegExp("^\\d\\d$");
	if (SecExp.test(intSec) && (intSec<60))
		Cal.Seconds=intSec;
}
Calendar.prototype.SetSecond=SetSecond;

function SetAmPm(pvalue)
{
	this.AMorPM=pvalue;
	if (pvalue=="PM")
	{
		this.Hours=(parseInt(this.Hours,10))+12;
		if (this.Hours==24)
			this.Hours=12;
	}	
	else if (pvalue=="AM")
		this.Hours-=12;	
}
Calendar.prototype.SetAmPm=SetAmPm;

function getShowHour()
{
	var finalHour;
    if (TimeMode==12)
    {
    	if (parseInt(this.Hours,10)==0)
		{
			this.AMorPM="AM";
			finalHour=parseInt(this.Hours,10)+12;	
		}
		else if (parseInt(this.Hours,10)==12)
		{
			this.AMorPM="PM";
			finalHour=12;
		}		
		else if (this.Hours>12)
		{
			this.AMorPM="PM";
			if ((this.Hours-12)<10)
				finalHour="0"+((parseInt(this.Hours,10))-12);
			else
				finalHour=parseInt(this.Hours,10)-12;	
		}
		else
		{
			this.AMorPM="AM";
			if (this.Hours<10)
				finalHour="0"+parseInt(this.Hours,10);
			else
				finalHour=this.Hours;	
		}
	}
	else if (TimeMode==24)
	{
		if (this.Hours<10)
			finalHour="0"+parseInt(this.Hours,10);
		else	
			finalHour=this.Hours;
	}	
	return finalHour;	
}				
Calendar.prototype.getShowHour=getShowHour;		

function GetMonthName(IsLong)
{
	var Month=MonthName[this.Month];
	if (IsLong)
		return Month;
	else
		return Month.substr(0,3);
}
Calendar.prototype.GetMonthName=GetMonthName;

function GetMonDays()//Get number of days in a month
{
	var DaysInMonth=[31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
	if (this.IsLeapYear())
	{
		DaysInMonth[1]=29;
	}	
	return DaysInMonth[this.Month];	
}
Calendar.prototype.GetMonDays=GetMonDays;

function IsLeapYear()
{
	if ((this.Year%4)==0)
	{
		if ((this.Year%100==0) && (this.Year%400)!=0)
		{
			return false;
		}
		else
		{
			return true;
		}
	}
	else
	{
		return false;
	}
}
Calendar.prototype.IsLeapYear=IsLeapYear;

function FormatDate(pDate)
{
	if (this.Format.toUpperCase()=="DDMMYYYY")
		return (pDate+DateSeparator+(this.Month+1)+DateSeparator+this.Year);
	else if (this.Format.toUpperCase()=="DDMMMYYYY")
		return (pDate+DateSeparator+this.GetMonthName(false)+DateSeparator+this.Year);
	else if (this.Format.toUpperCase()=="MMDDYYYY")
		return ((this.Month+1)+DateSeparator+pDate+DateSeparator+this.Year);
	else if (this.Format.toUpperCase()=="MMMDDYYYY")
		return (this.GetMonthName(false)+DateSeparator+pDate+DateSeparator+this.Year);			
}
Calendar.prototype.FormatDate=FormatDate;	

//--------------

function acceptDate (d)
{
	var today = new Date ();
	
	if(d.value.length>0 && isDate(d.value)!=0)
	{	
		var dv = d.value;
		var r = isInteger(dv.charAt(0));
		if(r != 0) // not date as 1/1/2000
		{
			r = isDate(d.value);
			
			// 3/1
			if(dv.indexOf('/') == dv.lastIndexOf('/'))
			{
				d.value += '/' + today.getFullYear();
			}
			else if(r==-4) // 1/1/01
			{
				var y = dv.substring(dv.lastIndexOf('/')+1, dv.lastIndexOf('/') + 3);
				d.value = dv.substring(0, dv.lastIndexOf('/')+1) + '20' + y;
			}
		}
		else // start with non digital such as today + etc.
		{
			d.value = d.value.toLowerCase().replace('today', '');
			dv = d.value;
			r = dv.charAt(0);
			if(r == '+')
			{
				var dayInc = d.value.substring(1, d.value.length);
				var dInc = new Date ((new Date()).getTime() + dayInc*24*60*60*1000);
				d.value = dInc.getMonth()+1 + '/' + dInc.getDate() + '/' + dInc.getFullYear()
			}
			else if(r == '-')
			{
				var dayInc = d.value.substring(1, d.value.length);
				var dInc = new Date ((new Date()).getTime() - dayInc*24*60*60*1000);
				d.value = dInc.getMonth()+1 + '/' + dInc.getDate() + '/' + dInc.getFullYear()
			}
		}
	}		
}

// ----------------------------------------
// is date function
var dtCh= "/";
var minYear=1900;
var maxYear=2100;

function isInteger(s)
{
	var i;
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

function stripCharsInBag(s, bag)
{
	var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++)
    {   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function daysInFebruary (year)
{
	// February has 29 days in any year evenly divisible by four,
    // EXCEPT for centurial years which are not also divisible by 400.
    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}

function DaysArray(n) 
{
	for (var i = 1; i <= n; i++) 
	{
		this[i] = 31
		if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
		if (i==2) {this[i] = 29}
   } 
   return this
}

function isDate(dtStr)
{
	var daysInMonth = DaysArray(12)
	var pos1=dtStr.indexOf(dtCh)
	var pos2=dtStr.indexOf(dtCh,pos1+1)
	var strMonth=dtStr.substring(0,pos1)
	var strDay=dtStr.substring(pos1+1,pos2)
	var strYear=dtStr.substring(pos2+1)
	strYr=strYear
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
	}
	month=parseInt(strMonth)
	day=parseInt(strDay)
	year=parseInt(strYr)
	if (pos1==-1 || pos2==-1){
		//alert("The date format should be : mm/dd/yyyy")
		return -1
	}
	if (strMonth.length<1 || month<1 || month>12){
		//alert("Please enter a valid month")
		return -2
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		//alert("Please enter a valid day")
		return -3
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		//alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear)
		return -4
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		//alert("Please enter a valid date")
		return -5
	}
return 0
}

// ----------------------------------------