function CheckExtendedDate(FormName,FieldName,FocusFieldName)
{
	var j=0;
	var intCheck=0;
	var intDay=""; intMonth=""; intYear="";
	var ArrDate=new Array();
	var arrMonthDays = new Array(31,29,31,30,31,30,31,31,30,31,30,31);
	var strDate=eval("document." + FormName +"." + FieldName + ".value");
	var strlen=strDate.length;
	var strTempString=""
	var strTempDate=""
	//Concatinating 0 in begning in case value of lenght 1
	if((strlen >= 8) && (strlen <= 9))	{
		strDate=strDate+"/"
		for (var i=0; i<=strlen; i++) {
	      	if(!(strDate.charAt(i) == "/")) {
		  		strTempString=strTempString + strDate.charAt(i)
	     	}
			else {
				if (strTempString.length < 2) {
					strTempString="0" + strTempString
					if (strTempDate.length < 1) {strTempDate=strTempString }
					else {strTempDate=strTempDate + "/" + strTempString	}	
					strTempString=""
				}	
				else {
					if (strTempDate.length < 1) {strTempDate=strTempString}
					else {strTempDate=strTempDate + "/" + strTempString	}	
					strTempString=""
				}	
			}	
		}
		strDate=strTempDate
	}

	strlen=strDate.length;
	if((strlen >= 8) && (strlen <= 10))	{
		for (var i=0; i<=strlen; i++) {
	      		if(!(strDate.charAt(i) == "/")) {
		  			ArrDate[j]=strDate.charAt(i)
		  			j=j+1
	     		}
				else {
					intCheck=intCheck+1;
				}
	  	}
	  	
	  	//****Check For two '//' in the date enterd
	  	
	 	if(intCheck !=2) {  
	 		alert("Invalid Date Format")
			eval("document." + FormName +"." + FocusFieldName + ".focus()");
			return false;
		}
		intMon=ArrDate[0] + ArrDate[1];
		intDay=ArrDate[2] + ArrDate[3];
		intYear=ArrDate[4] + ArrDate[5] + ArrDate[6] + ArrDate[7];
		if(isNaN(intDay)==false){
			if(isNaN(intMon)==false){
				if(isNaN(intYear)==false){
					//*****************Check for Zero in Days
					if(intDay=='00'){
						alert("Invalid date. Please enter a valid date.");
						eval("document." + FormName +"." + FocusFieldName + ".focus()");
						return false;
					}
					//*****************Check for Zero in Month
					if(intMon=='00'){
						alert("Invalid Number Of Months");
						eval("document." + FormName +"." + FocusFieldName + ".focus()");
						return false;
					}
					if(intYear == "0000"){
						alert("Invalid Year");
						eval("document." + FormName +"." + FocusFieldName + ".focus()");
						return false;	
					}
					if(parseInt(intYear.length) != 4){
						alert("Invalid Year");
						eval("document." + FormName +"." + FocusFieldName + ".focus()");
						return false;	
					}
					//*****************Coparing months with days
					if(parseInt(intDay) > arrMonthDays[parseInt(intMon-1)]) {
	    				alert("Invalid date. Please enter a valid date.");
	    				eval("document." + FormName +"." + FocusFieldName + ".focus()");
						return false;
					}
					else {
	 					if(intMon > 12) {
		  					alert("Invalid Month")
							eval("document." + FormName +"." + FocusFieldName + ".focus()");
							return false;
 						}
						else {
							if(intMon==2) {
								if(intYear%4==0 || intYear%400==0) {
									if(intDay>29) {
				  						alert("Day can't be greater than 29 in February for a leap year");
										eval("document." + FormName +"." + FocusFieldName + ".focus()");
										return false;	
									}	
								}
			 					else{
									if(intDay>28){
				    					alert("Day can't be greater than 28 in February");
	           		   					eval("document." + FormName +"." + FocusFieldName + ".focus()");
				    					return false;
									}
                 				}
							}
						}		
					}
				}
				else {
					alert("Character/s Not Allowed.");
					eval("document." + FormName +"." + FocusFieldName + ".focus()");
					return false;	
				}		
			}
			else {
				alert("Character/s Not Allowed.");
				eval("document." + FormName +"." + FocusFieldName + ".focus()");
				return false;	
			}	
		}
		else {
			alert("Character/s Not Allowed.");
			eval("document." + FormName +"." + FocusFieldName + ".focus()");
			return false;	
		}	
	}
	else {
		alert("Invalid Date Format.");
		eval("document." + FormName +"." + FocusFieldName + ".focus()");
		return false;	
	}
}