function bookmark(w_url,w_title) { 
       // Mozilla Firefox Bookmark 
       if (window.sidebar) { 
           window.sidebar.addPanel(w_title, w_url,""); 
       // IE Favorite 
       } else if( window.external ) { 
           window.external.AddFavorite(w_url, w_title);  
       // Opera Hotlist 
       } else if(window.opera && window.print) { 
           var elem = document.createElement('a'); 
           elem.setAttribute('href',w_url); 
           elem.setAttribute('title',w_title); 
           elem.setAttribute('rel','sidebar'); 
           elem.click(); 
       } 
   }