function checkNewsletter(f1) {
	if (f1.newsletter_name && (! f1.newsletter_name.value)) {
		alert("Please enter your name");
		f1.newsletter_name.focus();
		return false;
	}
	
	if (f1.newsletter_email.value.search(/^[^@]+@[^@\.]+\.[^@]+$/) == -1) {
		alert("Please enter a valid email address of the form name@domain.{com,org,etc.}");
		f1.newsletter_email.focus();
		return false;
	}

	return true;
}