function addBookmark() {
    var _href = window.location.href;
    if (window.sidebar) { 
        window.sidebar.addPanel("COFIDIS", _href,""); 
    } else if( document.getElementById ) {
        window.external.AddFavorite( _href, "COFIDIS");
    } else if( window.opera && window.print ) {
        return true;
    }
}