//Advanced Email Check credit-
//By JavaScript Kit (http://www.javascriptkit.com)
//Over 200+ free scripts here!

function checkemail_adv(obj){
	var str = obj.value;
	var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
	if (str == '' || filter.test(str)){
		return true;
	} else {
		alert("Please input a valid email address.");
		obj.focus();
		return false;
	}
}