function bookmarks() {
    if (window.sidebar) {
    // Mozilla Firefox
    window.sidebar.addPanel("Mantovani Macchine","http://www.mantovanimacchine.com","");
    } else if ( window.external ) {
        // Microsoft Internet Explorer
        window.external.AddFavorite("http://www.mantovanimacchine.com","Mantovani Macchine");
    }
}