private void ucmButtonActionPerformed(
     java.awt.event.ActionEvent evt) { // GEN-FIRST:event_ucmButtonActionPerformed
   // TODO add your handling code here:
   //        mf.removeAll();
   //        mf.add(new UcmPanel());
   MainFrame mf = McContext.getMainFrame();
   mf.removeAll();
   mf.add(new UcmPanel());
   mf.validate();
   mf.repaint();
   mf.paintAll(mf.getGraphics());
   mf.paintComponents(mf.getGraphics());
 } // GEN-LAST:event_ucmButtonActionPerformed