function chkFormular02 ()  {
  if (document.newsletter.from.value.indexOf("@") == -1) {
    alert("No e-mail address!");
    document.newsletter.from.focus();
    return false;
  }
  if (document.newsletter.from.value.indexOf(".") == -1) {
    alert("No e-mail address!");
    document.newsletter.from.focus();
    return false;
  }
}