function bookmark_us(url, title){

if (window.sidebar) // firefox
    window.sidebar.addPanel(title, url, "");
else if(window.opera && window.print){ // opera
    var elem = document.createElement('a');
    elem.setAttribute('href',url);
    elem.setAttribute('title',title);
    elem.setAttribute('rel','sidebar');
    elem.click();
}
else if(document.all)// ie
    window.external.AddFavorite(url, title);
}

function ShowPopup(hoveritem, popupitem, y_offset)
{
hp = document.getElementById(popupitem);

// Set position of hover-over popup
hp.style.top = (hoveritem.offsetTop + 18 + y_offset) + "px";
hp.style.left = (hoveritem.offsetLeft + 20)  + "px";

// Set popup to visible
hp.style.visibility = "visible";

}

function HidePopup(popupitem)
{
hp = document.getElementById(popupitem);
hp.style.visibility = "hidden";
}