document.write('<small>anzeige 4</small>'); 
                 try{
                       req = new XMLHttpRequest();
                  }
                  catch (e){
                      try{
                           req = new ActiveXObject("Msxml2.XMLHTTP");
                      } 
                      catch (e){
                         try{
                             req = new ActiveXObject("Microsoft.XMLHTTP");
                        } 
                        catch (failed){
                            req = null;
                        }
                     }  
                  }
      
      
                     
      
                     req.onreadystatechange = function(){            
                      switch(req.readyState) {
                        case 4:
                        if(req.status!=200) {
                            alert("Fehler:"+req.status); 
                        }else{    
                            alert(req.responseText);
                             
                            document.getElementById('google_ad').innerHTML = req.responseText;
                                                                    
                        }
                        break;
                
                        default:
                            return false;
                        break;     
                    }
                    
                    
                  };
      
                    req.open("GET", 'http://www.pressbot.net/google_ad.php', true);