docs: private JButton getBtnOK() {
  		if (btnOK == null) {
  			btnOK = new JButton();
  			btnOK.setText(Constant.messages.getString("all.button.ok"));
  			btnOK.addActionListener(new java.awt.event.ActionListener() { 
  
  				@Override
  				public void actionPerformed(java.awt.event.ActionEvent e) {    
  					saveAndClose();
  				}
  			});
  
  		}
  		return btnOK;
  	}