function chkEmail() {
	var email = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9])+$/;
	if (!email.test(document.enews.email.value)) {
		alert("Please enter a valid email address.");
		return false;
	}
	else { return true }
}