var req = null;
          
             function handleUsername(){            
                switch(req.readyState) {
                    case 4:
                        if(req.status!=200) {
                            alert("Fehler:"+req.status); 
                        }else{    
							//felder des formulars
							//if(action == 'suche'){
							submenu_field = 	document.getElementById("kbcount");
							//}
							
                            //antwort des servers
                            xml = req.responseXML;
                            resp = xml.getElementsByTagName("inhalt")[0];
                            //schreiben des ergebnisses
							submenu_field.innerHTML = resp.firstChild.nodeValue;

                        }
						
                    break;
            
                    default:
					
                        return false;
                    break;     
                }
            }
		            
             function countKb(){         
                 //erstellen des requests
                 
                try{
                    req = new XMLHttpRequest();
                }
                catch (e){
                    try{
                        req = new ActiveXObject("Msxml2.XMLHTTP");
                    } 
                    catch (e){
                        try{
                            req = new ActiveXObject("Microsoft.XMLHTTP");
                        } 
                        catch (failed){
                            req = null;
                        }
                    }  
                }

                if (req == null)
                      alert("Error creating request object!");
                  	
                  //anfrage erstellen (GET, url ist localhost,
                  //request ist asynchron
				  var timestamp = new Date();
timestamp = timestamp.getTime();
								  	
				  var url = 'AJAX_countKb_REQ.php';
				  var params='text='+document.getElementById('kb').value;
                  req.open("POST", url, true);
                //Beim abschliessen des request wird diese Funktion ausgeführt
				req.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
req.setRequestHeader("Content-length", params.length);
req.setRequestHeader("Connection", "close");
                req.onreadystatechange = handleUsername;
				
  req.send(params);

             

				
            }