x = 0;
y = 0;
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);