rem: return Components.classes[ progid ].getService( iid ); 
add: return Components.classes[ contractid ].getService( iid ); 
context:   function getService( progid, iidName ) {      var iid = Components.interfaces[iidName];      return Components.classes[ progid ].getService( iid );  }
meta: 5459	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5459/7b312a71f9ca5a071a99bec7ce671ec41915ff6a/navigator.js/clean/suite/browser/navigator.js