function submitit(){
	var email=document.subform.email.value;
	if (email==""){
		alert("You must enter your email address.")
		document.subform.email.focus()
		return false
		}
	if (email.indexOf('@', 0) == -1 || email.indexOf('.', 0) == -1){ 
		alert("The email address entered does not appear to be valid, please check it and try again.");
		document.subform.email.focus()
		return false
		}
}