function OldValidate() {

	if ((!document.form1.netID.value) || (!document.form1.student.value)) {
		alert("You must enter your EMail address and your full name.");
		document.form1.netID.focus();
		return;
		}

	document.form1.submit();
}

function Validate() {

	if (!document.form1.netID.value) {
		if ((!document.form1.student.value) || (!document.form1.email.value)) {
			alert("You must enter either a netID or your EMail address and full name.");
			if ((!document.form1.student.value) && (document.form1.email.value)) document.form1.student.focus();
			else if ((!document.form1.email.value) && (document.form1.student.value)) document.form1.email.focus();
			else document.form1.netID.focus();
			return;
			}
		}

	
	if ((document.form1.netID.value.indexOf(".") > -1) || (document.form1.netID.value.length > 8)) {
		alert("Your netID appears to be invalid");
		document.form1.netID.focus();
		return;
		}

	if ((document.form1.email.value) && (document.form1.email.value.indexOf("@") < 0)) {
		alert("Your email appears to be invalid");
		document.form1.email.focus();
		return;
		}

	// Don't put this here  document.form1.action='class_signup_mysql.php';
	var found = 0;
	for(var i = 0;class_list[i];++i) {
		if (class_list[i].checked) found = 1;
		}
	if (!found) {
		alert("You didn't check off a class!");
		return;
		}

	document.form1.submit();
}