wmtt = null;
         document.onmousemove = updateWMTT;
         function updateWMTT(e) {
                 if (wmtt != null) {
                         x = (document.all) ? window.event.x + wmtt.offsetParent.scrollLeft : e.pageX;
                         y = (document.all) ? window.event.y + wmtt.offsetParent.scrollTop  : e.pageY;
                         wmtt.style.left = (x + 20) + "px";
                         wmtt.style.top = (y + 20) + "px";
                 }
         }

         function zeigeBild(bild) {
                 wmtt = document.getElementById('VorschauBild')
                 wmtt.style.display = 'block';
                 document.getElementById('VBild').src = bild;
         }

         function versteckeBild() {
                 document.getElementById('VorschauBild').style.display = 'none';
         }