function addbookmark() {
    var url      = document.location;
    var title    = document.title;

    if (window.sidebar) window.sidebar.addPanel(title, url,"");

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