<!--
function checkEmail() {
 var userEmail = document.subscribe.email.value;
 if (userEmail == "") {
     alert("Please provide your e-mail address");
     document.subscribe.email.focus();
     return false;
 } else if (userEmail.indexOf("@")==-1 || userEmail.indexOf(" ")!=-1) {
            alert("Please enter a valid e-mail address");
            document.subscribe.email.focus();
            return false;
 }
}
// -->