rem: function createInstanceById( cid, iidName ) { var iid = eval( "Components.interfaces." + iidName ); return Components.classesByID[ cid ].createInstance( iid ); } 
add: function createInstanceById( cid, iidName ) { var iid = eval( "Components.interfaces." + iidName ); return Components.classesByID[ cid ].createInstance( iid ); } 
context:   function createInstanceById( cid, iidName ) {      var iid = eval( "Components.interfaces." + iidName );      return Components.classesByID[ cid ].createInstance( iid );  }
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/d46106418588bec5ed4354933e11d332b81439bb/navigator.js/buggy/suite/browser/navigator.js