function chkFormular2 () {
    if (document.newsletter.from.value  == "E-Mail-Adresse") {
    alert("Please insert your 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;
  }
  if (document.newsletter.from.value.indexOf(".") == -1) {
    alert("No e-mail address!");
    document.newsletter.from.focus();
    return false;
  }
}