function submitform1(){
	frm=document.su
	if (frm.email.value==""){
		alert("Please enter the email.");
		frm.email.focus();
		return;
	}else{
		var atPresent1 = frm.email.value.indexOf("@",0);
		var atPresent2 = frm.email.value.indexOf(".",0);
		if (atPresent1 < 1 || atPresent2 < 1) {
		   alert ("The e-mail address you supplied doesn't seem to be valid. Please re-enter the e-mail address.");
		   frm.email.focus();
		   return;
		}
	}
	frm.submit();
}