void onEdit() {
    DefaultTreeModel model = (DefaultTreeModel) m_tree.getModel();
    TreePath path = m_tree.getSelectionPath();
    DefaultMutableTreeNode node = (DefaultMutableTreeNode) path.getLastPathComponent();
    DefaultMutableTreeNode parent = (DefaultMutableTreeNode) node.getParent();
    Organization org = (Organization) node.getUserObject();
    OrganizationEditorDlg dlg = null;

    if (parent == model.getRoot())
      dlg =
          new OrganizationEditorDlg(
              pohaci.gumunda.cgui.GumundaMainFrame.getMainFrame(), m_conn, m_sessionid, null, org);
    else
      dlg =
          new OrganizationEditorDlg(
              pohaci.gumunda.cgui.GumundaMainFrame.getMainFrame(),
              m_conn,
              m_sessionid,
              (DefaultMutableTreeNode) node.getParent(),
              org);
    dlg.setVisible(true);

    if (dlg.getResponse() == JOptionPane.OK_OPTION) {
      node.setUserObject(dlg.getOrganization());
      model.nodeChanged(node);
    }
  }
 public void update() {
   if (myFileSystemTree != null) {
     myFileSystemTree.updateTree();
     final DefaultTreeModel model = (DefaultTreeModel) myTree.getModel();
     final int visibleRowCount = myTree.getVisibleRowCount();
     for (int row = 0; row < visibleRowCount; row++) {
       final TreePath pathForRow = myTree.getPathForRow(row);
       if (pathForRow != null) {
         final TreeNode node = (TreeNode) pathForRow.getLastPathComponent();
         if (node != null) {
           model.nodeChanged(node);
         }
       }
     }
   }
 }