function bookmark(url,title){
  if ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4)){
      window.external.AddFavorite(url,title);
  }
  else if (navigator.appName == "Netscape"){
    window.sidebar.addPanel(title,url,"");
  }
  else{
    alert("Press CTRL-D (FireFox Or Chrome) or CTRL-T (Opera) to bookmark");
  }
}