function addBookmark(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);
    } // if, else if
    
}