public void actionPerformed( java.awt.event.ActionEvent evt )
  {

    if ( evt.getActionCommand().equals( Wizard.CANCEL_BUTTON_ACTION_COMMAND ) )
    {
      cancelButtonPressed() ;
    }
    else if ( evt.getActionCommand().equals( Wizard.BACK_BUTTON_ACTION_COMMAND ) )
    {
      backButtonPressed() ;
    }
    else if ( evt.getActionCommand().equals( Wizard.NEXT_BUTTON_ACTION_COMMAND ) )
    {
      nextButtonPressed() ;
    }
    else if ( evt.getActionCommand().equals( Wizard.FINISH_BUTTON_ACTION_COMMAND ) )
    {
      finish() ;
    }

  }