function opis(evt,id,x,y)
{
 if (window.pageYOffset != null)
 {
  var sy = window.pageYOffset;
 }
 if (document.body.scrollWidth != null)
 {
  var sy = document.body.scrollTop;
 }
 if (window.pageXOffset != null)
 {
  var sx = window.pageXOffset;
 } 
 if (document.body.scrollHeight != null)
 {
  var sx = document.body.scrollLeft;
 }
 var dx = x;
 var dy = y;
 if (evt.x)
  {
   var cx = evt.x + dx + sx;
   var cy = evt.y + dy + sy;
  }
  else
   {
    var cx = evt.pageX + dx;
    var cy = evt.pageY + dy;
   }
 var domStyle = findDOM(id,1);
 domStyle.left = cx;
 domStyle.top = cy;
 domStyle.visibility = 'visible';
}