function addFav(){

    var url        = self.location.href;

    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);}

}