var dragobjekt = null;
        var dragx = 0;
        var dragy = 0;
        var posx = 0;
        var posy = 0;
        function draginit() {
          document.onmousemove = drag;
          document.onmouseup = dragstop;
        }
        function dragstart(element) {
          dragobjekt = element;
          dragx = posx - dragobjekt.offsetLeft;
          dragy = posy - dragobjekt.offsetTop;
        }
        function dragstop() {
          dragobjekt=null;
        }
        function drag(ereignis) {
          posx = document.all ? window.event.clientX : ereignis.pageX;
          posy = document.all ? window.event.clientY : ereignis.pageY;
          if(dragobjekt != null) {
            dragobjekt.style.left = (posx - dragx) + "px";
            dragobjekt.style.top = (posy - dragy) + "px";
          }
        }