// Declaring valid date character, minimum year and maximum year
		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(dtStr + ALERT_INVALID_DATEFORMAT)
				return false
			}
			if (strMonth.length<1 || month<1 || month>12){
				//alert("Please enter a valid month")
				alert(dtStr + ALERT_INVALID_DATEFORMAT)
				return false
			}
			if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
				//alert("Please enter a valid day")
				alert(dtStr + ALERT_INVALID_DATEFORMAT)
				return false
			}
			if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
				//alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear)
				alert(dtStr + ALERT_INVALID_DATEFORMAT)
				return false
			}
			if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
				//alert("Please enter a valid date")
				alert(dtStr + ALERT_INVALID_DATEFORMAT)
				return false
			}
		return true
		}

		function TrimString(sInString)
			 {
			       sInString = sInString.replace( /^\s+/g, "" );// strip leading
			       return sInString.replace( /\s+$/g, "" );// strip trailing
			 }