function newsletter_form_valid(form) {
  if ((form.name.value == "") || 
      (form.email.value == "")) {
    alert("All * fields are required.");
    return (false);
  }
  return (true);
}

function register_form_valid(form) {
  if ((form.firstname.value == "") || 
      (form.lastname.value == "") ||
      (form.address.value == "") ||
      (form.city.value == "") ||
      (form.postcode.value == "") ||
      (form.phone1.value == "") ||
      (!form.terms.checked)) {
    alert("All * fields are required.");
    return (false);
  }
  return (true);
}