// JavaScript Document
<!-- This script and many more are available free online at -->
<!-- The JavaScript Source!! http://javascript.internet.com -->

<!-- Begin
function checkEmail(myForm) {
if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(myForm.USER.value)){
return (true);
}
alert("Invalid E-mail Address! Please re-enter.");
return (false);
}
//  End -->