function Form_Validator(form)
  {
    re = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/ ;

    if (re.test (form.email.value) == false)
    {
      alert("Please specify your e-mail address");
      form.email.focus();
      return (false);
    }

    return (true);
  }