private void quitProgram() {
		int dialogResult = JOptionPane.showConfirmDialog(chatGui, 
				settings.getLanguage().getLabel("quit_msg_description"), 
				settings.getLanguage().getLabel("quit_msg_title"),
                JOptionPane.YES_NO_OPTION);
		if(dialogResult == JOptionPane.YES_OPTION){
			System.exit(0);
		}			
	}