<!--
function CheckMail() {
   var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9])+$/;
   if(filter.test(document.frmNewsletter.email.value)) return true;
   alert("Please enter a valid email address.");
   return false;
}
//-->