function displayLayer(which) { 
obj = document.getElementById(which);
obj.style.display == "block" ? obj.style.display = "none" : obj.style.display = "block";
obj.style.visibility == "visible" ? obj.style.visibility = "hidden" : obj.style.visibility = "visible";
}

function bookmarksite(title, url){
if (document.all)
window.external.AddFavorite(url, title);
else if (window.sidebar)
window.sidebar.addPanel(title, url, "")
}