function checkEmail(input_id) 
{
	
    var input_object = document.getElementById(input_id);
	if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(input_object.value))
	{
		return (true);
	}
	alert("Invalid E-mail Address! Please re-enter.");
	return (false);
}