function doIt(){
        //erstellen des requests
        var req = null;
            try{
                req = new XMLHttpRequest();
                }
        catch (ms){
            try{
                req = new ActiveXObject("Msxml2.XMLHTTP");
                }
        catch (nonms){
            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
            req.open("GET", 'http://www.radio-confusion.de/cms/front_content.php?idart=155', true);
        //Beim abschliessen des request wird diese Funktion ausgeführt
        req.onreadystatechange = function(){ 
             switch(req.readyState) {       
                case 4:           
                if(req.status!=200) {
    //    alert("Fehler:"+req.status); 
                            }
                else{    
    //    alert(req.responseText);
        //schreibe die antwort in den div container mit der id content   
                  document.getElementById('streamdaten').innerHTML = req.responseText;
                    }
            break;
        default: 
        return false;
        break;
        }
        };
        req.setRequestHeader("Content-Type",  
        "application/x-www-form-urlencoded");    
        req.send(null); 
        }
        

        window.setInterval("doIt()", 120000);