function chkDate(data){	
	var dat,yy,yy1,dt,dob;
	dat=new Date()
	yy=dat.getYear()	
	dt= data
	
	if (isDate(dt.value)==false){										
		//	alert("invalid Date")
			data.value=""
			return false
	}
	
	{	 
		dob=dt.value				
		//var daysInMonth = DaysArray(12)
		var pos1=dob.indexOf(dtCh)
		var pos2=dob.indexOf(dtCh,pos1+1)
		var strDay=dob.substring(0,pos1)
		var strMonth=dob.substring(pos1+1,pos2)
		var strYear=dob.substring(pos2+1)													
		
		if ((yy-strYear) <18){
			alert("You are not eligible")
			data.value=""
			document.myForm.txtAge.value=""
			return false			
			}
		document.myForm.txtAge.value  = parseInt(yy-strYear) 				
		return true					    
    }
    
    {	
	if (isDate(dt.value)==false){		
		if (data.name!= "txtDOB" && data.name!= "txtPED" && data.value != "" )  
			{			
			alert("invalid Date")
			data.value=""
			}
		return false
	}
    return true
    }
    
 }
function ValidateDate(data){	
	var dt= data
	if (isDate(dt.value)==false){		
		if (data.name!= "txtDOB" && data.name!= "txtPED" && data.value != "" )  
			{			
			alert("invalid Date")
			data.value=""
			}
		return false
	}
    return true
 }
 
 function ValidateMMYYYY(data)
 {	
	var datavalue
	datavalue = data.value
	if (data.value !="")		
		{
			if ((datavalue.length)< 7)
				{
					alert("invalid Month Year")
					data.value=""
					return false
				}			
				var pos1=datavalue.indexOf(dtCh)
				var strMonth=datavalue.substring(0,pos1)
				var strYear=datavalue.substring(pos1+1)				
				if (strMonth > 12)
						{
							alert("invalid Month Year")
							data.value=""
							return false					
						}				
				if (strYear <= 1900 || strYear >= 2100)
						{
							alert("invalid Month Year")
							data.value=""
							return false					
						}
		}
			return true		
	}
	
 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 strDay=dtStr.substring(0,pos1)
	var strMonth=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 : dd/mm/yyyy")
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		////alert("Please enter a valid month")
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		////alert("Please enter a valid day")
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		////alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear)
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		////alert("Please enter a valid date")
		return false
	}
return true
}
 
function SameAsPresentAdd()		
		{
		if (document.myForm.chkAdd.checked == true)			
			{				
				document.myForm.txtPeAdd.value = document.myForm.txtadd1.value  
			}
		else
			{
				document.myForm.txtPeAdd.value=""
			}
		}

function checkValueNUM()
	{	
		if(!((event.keyCode >= 48) && (event.keyCode <= 57)))
		{
			event.keyCode = 0;	  
		}
		if((event.ctrlKey)&&(event.keyCode == 86))
		{
			event.returnValue = false;
		}		
	}
function checkValue()
	{
		//alert("ok")
		if(!(((event.keyCode >= 12) && (event.keyCode <= 38))||((event.keyCode >= 40) && (event.keyCode <= 122)) ))
		{
			event.keyCode = 0;	  
		}
		if((event.ctrlKey)&&(event.keyCode == 86))
		{
			event.returnValue = false;
		}
	}	
function chkYear(data)
{	  	  
	var dat,yy;
	dat=new Date()
	
	yy=dat.getYear()
	if (data.value != "")
		{
		if(data.value <= 1900 || data.value >  yy  )
			{	alert("Enter Proper Passing Year")
				/*alert(data.name+" should not be Empty")*/
				data.value="";
				return false
			}
		else
			return true	
		}
}

function init()
{
	var f = document.myForm;
	//attachAllTextHandlers(f);

	f.txtsalary3.onblur = checkValueNUM;
	f.txtsalary4.onblur = checkValueNUM;
}