if(document.layers) {
   window.captureEvents(Event.MOUSEMOVE);
   window.onmousemove = koordinaten;
   }
   else {
      document.onmousemove = koordinaten;
   }
function koordinaten(e) {
   xpos = (document.layers || (document.getElementById && !document.all)) ? e.pageX : document.body.scrollLeft +

event.clientX;
   ypos = (document.layers || (document.getElementById && !document.all)) ? e.pageY : document.body.scrollTop +

event.clientY;
   werte();
}
function werte(){
   var img_wrapper = document.getElementById('img_wrapper');
   var obj1 = document.getElementById('obj1');
   var obj2 = document.getElementById('obj2');
   var obj3 = document.getElementById('obj3');
   
   var nullpunkt = eval(xpos - img_wrapper.offsetLeft);
   var calc1 = eval(nullpunkt*obj_calc1);
   var calc2 = eval(nullpunkt*obj_calc2);
   var calc3 = eval(nullpunkt*obj_calc3);
   
  if(obj1) obj1.style.left = eval(parseInt(obj1_lef) + parseInt(calc1)) + "px";
  if(obj2) obj2.style.left = eval(parseInt(obj2_lef) + parseInt(calc2)) + "px";
  if(obj3) obj3.style.left = eval(parseInt(obj3_lef) + parseInt(calc3)) + "px";
 
} 
var obj1_lef;
var obj2_lef;
var obj3_lef;