function validate(frm)
{
	if(frm.email.value==""){
		alert("Please enter your Email ID");
		frm.email.focus();
		return false;
	}else{
		if(!isEmail(frm.email.value)){
			alert("Please enter a valid Email ID")
			frm.email.focus();
			return false;
		}	
	}

/*Email Validation function*/
function isEmail (s)
	{   
		var i = 1;
		var sLength = s.length;

		while ((i < sLength) && (s.charAt(i) != "@"))
		{ i++
		}
		if ((i >= sLength) || (s.charAt(i) != "@")) return false;
		else i += 2;
		while ((i < sLength) && (s.charAt(i) != "."))
		{ i++
		}
		if ((i >= sLength - 1) || (s.charAt(i) != ".")) return false;
		else return true;
	} 	
}