function validate_email(  ) {

	var val = document.getElementById("emailid").value;

        if(val.length == 0) {
            alert("Please fill in your email to continue.");
            return false;
        }

        var apos=val.indexOf("@");
        var dotpos=val.lastIndexOf(".");

        if (apos<1||dotpos-apos<2){
            alert("Please enter a valid email address to continue.");
            return false;
        }

        return true;
    }