function cross_on (Ereignis)
{
  if (!Ereignis)
    Ereignis = window.event;

  var x,y;
  if (self.pageYOffset) // all except Explorer
  {
    x = self.pageXOffset;
    y = self.pageYOffset;
  }
  else if (document.documentElement && document.documentElement.scrollTop)
    // Explorer 6 Strict
  {
    x = document.documentElement.scrollLeft;
    y = document.documentElement.scrollTop;
  }
  else if (document.body) // all other Explorers
  {
    x = document.body.scrollLeft;
    y = document.body.scrollTop;
  }

  if (document.getElementById)
  {
    document.getElementById("crossseller").style.display  = "block";
    document.getElementById("crossseller").style.left  = (x + Ereignis.clientX + 10) + "px";
    document.getElementById("crossseller").style.top = (y + Ereignis.clientY - 10) + "px";
  }
  else if (document.all)
  {
    document.all.crossseller.style.display = "block";
    document.all.crossseller.style.left = x + Ereignis.clientX + 10;
    document.all.crossseller.style.top = y + Ereignis.clientY -10;
  }
}

function cross_off (Ereignis)
{
  if (!Ereignis)
    Ereignis = window.event;
  if (document.getElementById)
  {
    document.getElementById("crossseller").style.display  = "none";
  }
  else if (document.all)
  {
    document.all.crossseller.style.display = "none";
  }
}