<!-- This script and many more are available free online at -->
<!-- The JavaScript Source!! http://javascript.internet.com -->

<!-- Begin
function checkEmail(objName) {
var emailfield = objName;
if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(emailfield.value)){
return (true)
}
alert("Invalid E-mail Address! Please re-enter.")
emailfield.focus()
return (false)
}
//  End -->