function ltrim(s)
{
	return s.replace( /^\s*/, "" )
}
	
function rtrim(s)
{
	return s.replace( /\s*$/, "" );
}

function trim(s)
{
	return rtrim(ltrim(s));
}

function validateEmail(elemID)
{
	var elem1 = document.getElementById(elemID);
	if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(trim(elem1.value)))
		return (true);
	return (false);
}

function IsEmail(elemID)
{
	var elem1 = document.getElementById(elemID);
	var elem2 = document.getElementById("td_" + elemID);
	if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(trim(elem1.value)))
	{
		elem2.innerHTML = " ";
		return true;
	}
	elem2.innerHTML = "(Invalid)";
	return false;
}

function IsBlank(elemID)
{
	var elem1 = document.getElementById(elemID);
	var elem2 = document.getElementById("td_" + elemID);
	if(trim(elem1.value) == "") {
		elem2.innerHTML = "(Missing)";
		return true;
	}
	elem2.innerHTML = " ";
	return false;
}

function IsEmail2(elemID, elem2ID)
{
	var elem1 = document.getElementById(elemID);
	var elem2 = document.getElementById(elem2ID);
	if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(trim(elem1.value)))
	{
		elem2.innerHTML = " ";
		return true;
	}
	sMsg = "(Invalid)";
	elem2.innerHTML = "(Invalid)";
	return false;
}

function IsBlank2(elemID, elem2ID)
{
	var elem1 = document.getElementById(elemID);
	var elem2 = document.getElementById(elem2ID);
	if(trim(elem1.value) == "") {
		sMsg = "(Missing)";
		elem2.innerHTML = "(Missing)";
		return true;
	}
	elem2.innerHTML = " ";
	return false;
}

function checkLength(elemID)
{
	var elem1=document.getElementById(elemID);
	var str=elem1.value;
	var elem2 = document.getElementById("td_" + elemID);
	var len = str.length;
	
	if(len < 6)
	  {
		elem2.innerHTML="(Min 6 Characters)"
		return false;
	  }
	else
		return true;
}

function IsDate(Str)
{
	var dtCh= "/";
	var minYear=1900;
	var maxYear=2100;
	var elem1 = document.getElementById(Str);
	var elem = document.getElementById("td_" + Str);
	var dtStr = elem1.value;
	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){
		elem.innerHTML ="(Invalid Date format)";
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		elem.innerHTML ="(Invalid month)";
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		elem.innerHTML ="(Invalid Day)";
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		elem.innerHTML ="(Invalid year)";
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		elem.innerHTML ="(Invalid date)";
		return false
	}
	elem.innerHTML="";
return true
}

	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
}