function bookmarksite(title,url){
 if (window.sidebar) // firefox
     //window.sidebar.addPanel(title, url, ""); Dont use until it's fixed
     alert('Lieber Firefox-Benutzer, benutzen Sie CTRL+D um diese Seite zu Bookmarken.');
 else if(window.opera && window.print){ // opera
     var elem = document.createElement('a');
     elem.setAttribute('href',url);
     elem.setAttribute('title',title);
     elem.setAttribute('rel','sidebar');
     elem.click();
 } 
 else if(document.all)// ie
     window.external.AddFavorite(url, title);
 }