public void valueChanged( TreeSelectionEvent e )
  {
    TreePath path = warnings.getSelectionPath() ;
    if (path != null)
    {
      Object source = path.getLastPathComponent() ;
      if ( source != null )
      {
        if ( source instanceof TValueNode )
        {
          TValueNode vDummy = ( TValueNode ) source ;
//          System.out.println( vDummy ) ;

          GUIGlobals.oPanel.setSelectedEntry( vDummy.getReference() ) ;
        }
        else if ( source instanceof TValidationType )
        {
//          System.out.println( ( ( TValidationType ) source ).getDescription() ) ;
        }
      }
    }
//    System.out.println( e.getSource() ) ;
  }