var loading = false;

  function loadHTML(url,loadcaptcha) {

   loading = true;
   if(url.indexOf("?") == -1){
    url = url + "?ie=" + new Date().getTime();
   } else {
    url = url + "&ie=" + new Date().getTime();
   }


    new Ajax.Request(url,
    {
     method:'GET',
     encoding: 'ISO-8859-1',
     onLoading: function(){
       loading = true;
       $('inhalt').innerHTML='';
       $('inhalt_load').style.display='block';
      },
     onSuccess: function(empfang){
       $('inhalt_load').hide();
       $('inhalt').innerHTML=empfang.responseText;
       loading = false;
     },
     onFailure: function(){
       $('inhalt_load').hide();
       $('inhalt').innerHTML='<center>Seite konnte nicht geladen werden!</center>';
       loading = false;
     }
     }
    );
    //setheader('');
   }

  function setheader(inhalt){
   $("inhalt_header").innerHTML = inhalt;
  }