function ValidateRequiredFields(frm, arr)
{
	for (i = 0; i < arr.length; i++)
	{
		var e = frm.elements[arr[i]];
		if (e.value.length <= 0)
			return false;
	}	
	return true;
}

function ValidateRegular(source, reg)
{
	value = source.value;
	if (value.length == 0)
		return true;
	var rx = new RegExp(reg);
	var matches = rx.exec(value);
    return (matches != null && value == matches[0]);
}


function ValidateEmail(source)
{
	if  (!ValidateRegular(source, "\\w+([-+.]\\w+)*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*"))
	{
		source.select();
		source.focus();
		return false;
	}
	return true;
}

function ValidatePhone(source)
{
	if (!ValidateRegular(source, "((\\(\\d{3}\\) ?)|(\\d{3}-))?\\d{3}-\\d{4}"))
	{
		source.select();
		source.focus();
		return false;
	}
	return true;
}

function IsInteger(source)
{
	if (!ValidateRegular(source, "\\d*"))
	{
		source.select();
		source.focus();
		return false;
	}
	return true;
}

function ValidateURL(source)
{
	if (!ValidateRegular(source, "((\\(\\d{3}\\) ?)|(\\d{3}-))?\\d{3}-\\d{4}"))
	{
		source.select();
		source.focus();
		return false;
	}
	return true;
}

/*************************************************************************\
CheckCardNumber(form)
function called when users click the "check" button.
\*************************************************************************/
/*************************************************************************\
boolean isNum(String argvalue)
return true if argvalue contains only numeric characters,
else return false.
\*************************************************************************/
function isNum(argvalue) 
{
	argvalue = argvalue.toString();

	if (argvalue.length == 0)
	return false;

	for (var n = 0; n < argvalue.length; n++)
		if (argvalue.substring(n, n+1) < "0" || argvalue.substring(n, n+1) > "9")
			return false;
	return true;
}

/*************************************************************************\
boolean luhnCheck([String CardNumber])
return true if CardNumber pass the luhn check else return false.
Reference: http://www.ling.nwu.edu/~sburke/pub/luhn_lib.pl
\*************************************************************************/
function luhnCheck() 
{
	var argv = luhnCheck.arguments;
	var argc = luhnCheck.arguments.length;

	var CardNumber = argc > 0 ? argv[0] : this.cardnumber;

	if (! isNum(CardNumber)) 
	{
		return false;
	}

	var no_digit = CardNumber.length;
	var oddoeven = no_digit & 1;
	var sum = 0;

	for (var count = 0; count < no_digit; count++) 
	{
		var digit = parseInt(CardNumber.charAt(count));
		if (!((count & 1) ^ oddoeven)) 
		{
			digit *= 2;
			if (digit > 9)
			digit -= 9;
		}
		sum += digit;
	}
	if (sum % 10 == 0)
		return true;
	else
		return false;
}

/*************************************************************************\
ArrayObject makeArray(int size)
return the array object in the size specified.
\*************************************************************************/
function makeArray(size) 
{
	this.size = size;
	return this;
}

/*************************************************************************\
CardType setCardNumber(cardnumber)
return the CardType object.
\*************************************************************************/
function setCardNumber(cardnumber) 
{
	this.cardnumber = cardnumber;
	return this;
}

/*************************************************************************\
CardType setCardType(cardtype)
return the CardType object.
\*************************************************************************/
function setCardType(cardtype) 
{
	this.cardtype = cardtype;
	return this;
}

/*************************************************************************\
CardType setExpiryDate(year, month)
return the CardType object.
\*************************************************************************/
function setExpiryDate(year, month) 
{
	this.year = year;
	this.month = month;
	return this;
}

/*************************************************************************\
CardType setLen(len)
return the CardType object.
\*************************************************************************/
function setLen(len) 
{
	// Create the len array.
	if (len.length == 0 || len == null)
		len = "13,14,15,16,19";

	var tmplen = len;
	n = 1;
	while (tmplen.indexOf(",") != -1) 
	{
		tmplen = tmplen.substring(tmplen.indexOf(",") + 1, tmplen.length);
		n++;
	}
	this.len = new makeArray(n);
	n = 0;
	while (len.indexOf(",") != -1) 
	{
		var tmpstr = len.substring(0, len.indexOf(","));
		this.len[n] = tmpstr;
		len = len.substring(len.indexOf(",") + 1, len.length);
		n++;
	}
	this.len[n] = len;
	return this;
}

/*************************************************************************\
CardType setRules()
return the CardType object.
\*************************************************************************/
function setRules(rules) 
{
	// Create the rules array.
	if (rules.length == 0 || rules == null)
		rules = "0,1,2,3,4,5,6,7,8,9";
	  
	var tmprules = rules;
	n = 1;
	while (tmprules.indexOf(",") != -1) 
	{
		tmprules = tmprules.substring(tmprules.indexOf(",") + 1, tmprules.length);
		n++;
	}
	
	this.rules = new makeArray(n);
	n = 0;
	
	while (rules.indexOf(",") != -1) 
	{
		var tmpstr = rules.substring(0, rules.indexOf(","));
		this.rules[n] = tmpstr;
		rules = rules.substring(rules.indexOf(",") + 1, rules.length);
		n++;
	}
	this.rules[n] = rules;
	return this;
}
////////////////////////////////////////////////////////////////////////
//This function is check for require objControl
///////////////////////////////////////////////////////////////////////
function checkRequireField(objControl,strMessage){
	if(objControl.value == ""){
		return strMessage;
	}
	else{
		return "";
	}
}
///////////////////////////////////////////////////////////////////////////
//This funtion is check for an email is correct
/////////////////////////////////////////////////////////////////////////////
function checkEmail(objControl,strMessage){
	if(MyValidateEmail(objControl)){
		return "";
	}
	else{
		return strMessage;
	}
}
function MyValidateEmail(source)
{
	if  (!ValidateRegular(source, "\\w+([-+.]\\w+)*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*"))
	{
		source.select();
		source.focus();
		return false;
	}
	return true;
}
///////////////////////////////////////////////////////////////////
//
/////////////////////////////////////////////////////////////////////////////