function CheckData()
 {
  var re_news           = /^([_a-zA-Z0-9-.]+)@([a-zA-Z0-9-]+\.)+([a-zA-Z]{2,4})$/;   
  var f_news_abonnieren = document.newsletter_an.news_abonnieren.value;                

  var checked = true;

  if (re_news.test(f_news_abonnieren) == false || f_news_abonnieren.length<1)
   {
    alert("Ihre e-mail Adresse fehlt oder ist falsch!");
    checked = false;
    document.newsletter_an.news_abonnieren.focus();
    return checked;
   }  

  if (checked)
   {
    document.newsletter_an.method = "post";
    /* document.newsletter_an.action = "nl_anmeldung_confirm.php"; */
    /* ---< rechanged 2006-12-07 >--- */
    /* ***---< changed 2007-09-27 >---*** */
    /* document.newsletter_an.action = "http://134.99.12.238/newsletter/email_input.php";*/
    /* document.newsletter_an.action = "http://134.99.12.236/elephant/newsletter/email_input.php";*/
    /* document.newsletter_an.action = "http://elephant.rz.uni-duesseldorf.de/newsletter/email_input.php";*/
    /* document.newsletter_an.action = "http://134.99.12.235/newsletter/email_input.php";*/
    /* ---< changed 2010-08-02; domain doesn't exist anymore ... >--- */
    /* document.newsletter_an.action = "http://134.99.12.238/newsletter/email_input.php"; */
    /* ---< changed 2010-09-20; new domain ... >--- */
    document.newsletter_an.action = "http://www.ddznews.uni-duesseldorf.de/dh-nachrichten/email_input.php";
    document.newsletter_an.submit();
   }  

  return checked;
 }


/*---< end of function CheckData >--- */