function bookmark(){
  if ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4)) {
  window.external.AddFavorite('http://www.oys.org','Online Youth Services');
  } else if (navigator.appName == "Netscape") {
    window.sidebar.addPanel('http://www.oys.org','Online Youth Services');
  } 
}