rem: panelTree.outlinerBoxObject.selection.select( index ); 
add: panelTree.treeBoxObject.selection.select( index ); 
context:     openBranch:      function ( aComponentName, aSelectItem )        {          var panelTree = document.getElementById( "prefsTree" );          var selectItem = document.getElementById( aSelectItem );          var index = panelTree.contentView.getIndexOfItem( selectItem );          if ( !panelTree.view.isContainerOpen( index ) )            panelTree.view.toggleOpenState(index);          panelTree.outlinerBoxObject.selection.select( index );        }
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/d38a0937d9c93a0a9d913e2ac781e4328bb8cc73/nsPrefWindow.js/clean/xpfe/components/prefwindow/resources/content/nsPrefWindow.js