function addBookmark()
{
var url = location.href;  // url of the site
var title = document.title; // title/description

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);
}
else 
{
//document.getElementById('favorites').style.visibility = 'hidden';  
alert('Press ctrl+D to bookmark (Command+D for macs) after you click Ok');
}
}