function emailcheck(form) {
	Ctrl = form.email;
	result = false;
	space_tokens = Ctrl.value.split(" ");
	if (space_tokens.length == 1) {
	 at_tokens = Ctrl.value.split("@");
	 if (at_tokens.length == 2) {
		if (at_tokens[1].length != 0) {
			right_dot_tokens = at_tokens[1].split(".");
			if (right_dot_tokens.length >= 2) {
				if (right_dot_tokens[1].length != 0) {
					result=true;
				}
			}
		}
	}
	}
	if (!result)
		valida (Ctrl, "Per favore inserisci un indirizzo e-mail valido (es: tuonome@tin.it)");
	return (result);
}

function go(form) {
	if (!emailcheck(form)) return;
	document.form1.submit();
}

function valida (Ctrl, msg) {
	alert (msg)
		Ctrl.focus();
	return;
	}

function loadform() {
	// initial focus; use if needed
	document.form1.email.focus();
	return;
}