function WertHolen() {
 var Wert = "";
 if(document.cookie) {
  var Wertstart = document.cookie.indexOf("=") + 1;
  var Wertende = document.cookie.indexOf(";");
  if (Wertende == -1)
   Wertende = document.cookie.length;
  Wert = document.cookie.substring(Wertstart,Wertende);
 }
 return Wert;
}

  function setcookie() {
    window.document.cookie = "Zaehler=18;path=/;";
    }