public NavigatorFrame(MainImageDisplay imageDisplay) {
super("Catalog Navigator");
setIconImage(new ImageIcon(Resources.getResource("images/Catalog24.gif")).getImage());
CatalogTree catalogTree = new CatalogTree();
TablePlotter plotter = new BasicTablePlotter();
navigator = new Navigator(catalogTree, plotter, imageDisplay);
NavigatorToolBar toolbar = new NavigatorToolBar(navigator);
getContentPane().add(toolbar, BorderLayout.NORTH);