function tausch()
      {
        singlepass();
        setInterval("div1=document.getElementById('produkt1');div1.style.display='block';singlepass()",50000);
      }

function singlepass()
      {
        div1=document.getElementById('produkt1');
        div2=document.getElementById('produkt2');
        div3=document.getElementById('produkt3');
        div4=document.getElementById('produkt4');
        div5=document.getElementById('produkt5');
        div2.style.display='none';
        div3.style.display='none';
        div4.style.display='none';
        div5.style.display='none';
        setTimeout("div1.style.display='none';div2.style.display='block';",10000);
        setTimeout("div2.style.display='none';div3.style.display='block';",20000);
        setTimeout("div3.style.display='none';div4.style.display='block';",30000);
        setTimeout("div4.style.display='none';div5.style.display='block';",40000);
        setTimeout("fade1()",10000);
        setTimeout("fade2()",20000);
        setTimeout("fade3()",30000);
        setTimeout("fade4()",40000);
      }