function site_load_post($xmlFile,$idElement,$ajaxFile,$postVariablen){
  $url = $ajaxFile + "?title=" + $xmlFile;

  if (window.XMLHttpRequest) { // Mozilla, Safari, ...
    http_request = new XMLHttpRequest();
  } else if (window.ActiveXObject) { // IE
    http_request = new ActiveXObject("Microsoft.XMLHTTP");
  }

   http_request.onreadystatechange=function(){
     if (http_request.readyState==4 || http_request.readyState=="complete"){
       document.getElementById($idElement).innerHTML=http_request.responseText;
     }
    };

   http_request.open('POST', $url, true);
   http_request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
   http_request.send($postVariablen);

 }

 function site_load($inUrl,$idElement,$inBooleanMarkitup){
  xmlHttp=GetXmlHttpObject();

   if (xmlHttp==null){
    alert ("Browser does not support HTTP Request");
    return;
    }

   xmlHttp.onreadystatechange=function(){
   //xmlHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded; charset=iso-8859-1');
     if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){
       document.getElementById($idElement).innerHTML=xmlHttp.responseText;
       set_thickbox();//Nachladen der Funktion für die Thickbox
       set_datepicker();//Nachladen der Funktion für die Thickbox
       if($inBooleanMarkitup == 1){
        setMarkitUp();
       }
     }
    };
   xmlHttp.open("GET",$inUrl,true);
   xmlHttp.send(null);
 }


 function GetXmlHttpObject(){
  var objXMLHttp=null
  if (window.XMLHttpRequest){
   objXMLHttp=new XMLHttpRequest();
  }
  else if (window.ActiveXObject){
   objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
  return objXMLHttp
 }