function Trim(TRIM_VALUE){
		if(TRIM_VALUE.length < 1){
		return"";
		}
		TRIM_VALUE = RTrim(TRIM_VALUE);
		TRIM_VALUE = LTrim(TRIM_VALUE);
		if(TRIM_VALUE==""){
		return "";
		}
		else{
		return TRIM_VALUE;
		}
		} //End Function
		
		function RTrim(VALUE){
		var w_space = String.fromCharCode(32);
		var v_length = VALUE.length;
		var strTemp = "";
		if(v_length < 0){
		return"";
		}
		var iTemp = v_length -1;
		
		while(iTemp > -1){
		if(VALUE.charAt(iTemp) == w_space){
		}
		else{
		strTemp = VALUE.substring(0,iTemp +1);
		break;
		}
		iTemp = iTemp-1;
		
		} //End While
		return strTemp;
		
		} //End Function
		
		function LTrim(VALUE){
		var w_space = String.fromCharCode(32);
		if(v_length < 1){
		return"";
		}
		var v_length = VALUE.length;
		var strTemp = "";
		
		var iTemp = 0;
		
		while(iTemp < v_length){
		if(VALUE.charAt(iTemp) == w_space){
		}
		else{
		strTemp = VALUE.substring(iTemp,v_length);
		break;
		}
		iTemp = iTemp + 1;
		} //End While
		return strTemp;
	} //End Function

function Isvalid(email) 
{
	var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
	//var address = document.forms[form_id].elements[email].value;
	if(reg.test(email) == false) 
	return false;
	else
	return true;
}