function addbookmark() {

    var bookmarkurl = window.location.href.substr(0, window.location.href.indexOf('/', 8) + 1) + '';



    if (document.title) {

        var bookmarktitle = document.title;

    }

    else {

        var bookmarktitle = "";

    }



    if (window.sidebar) {

        window.sidebar.addPanel(bookmarktitle, bookmarkurl, "");

    }

    else if (window.external) {

        window.external.AddFavorite(bookmarkurl, bookmarktitle);

    }

}