function scrollit()
{
var slackvalue=50;
if (navigator.appName == "Microsoft Internet Explorer")
{
pLayer.style.top = (document.body.clientHeight+document.body.scrollTop-(document.body.clientHeight-10));
pLayer.style.visibility = "visible";
}
if (navigator.appName == "Netscape")
{
var imageheight=55;
document.pLayer.top=(window.innerHeight+window.pageYOffset-(window.innerHeight-10));
document.pLayer.visibility = "show";
}
}
if ((document.all) || (document.layers)){
setInterval("scrollit()",200);
}