function addToFavorite(favTitle){
  if ((navigator.appVersion.indexOf("MSIE") > 0) && (parseInt(navigator.appVersion) >= 4)) {
    window.external.AddFavorite(location.href, unescape(favTitle));
  }  
  else {
    alert("Auto-bookmarking only works in Internet Explorer.\n\nNetscape users: Press CTRL+D.\nOpera users: Press CTRL+T.\n\nOther browsers should manually bookmark or consult their user guide.");
  }
}