x = 240;
y = 170;
function setVisible(obj)
{
       obj = document.getElementById(obj);
       obj.style.visibility = (obj.style.visibility == 'visible') ? 'hidden' : 'visible';
}
function placeIt(obj)
{
       obj = document.getElementById(obj);
       if (document.documentElement)
       {
               theLeft = document.documentElement.scrollLeft;
               theTop = document.documentElement.scrollTop;
       }
       else if (document.body)
       {
               theLeft = document.body.scrollLeft;
               theTop = document.body.scrollTop;
       }
       theLeft += x;
       theTop += y;
       obj.style.left = theLeft + 'px' ;
       obj.style.top = theTop + 'px' ;
       setTimeout("placeIt('layer1')",500);
}
window.onscroll = setTimeout("placeIt('layer1')",500);