public static String getLangueMessage ( String key ) {
    	ResourceBundle resourceBundle = Utilities.getResourceBundle () ;
    	String str = key ;
    	
    	try {
    		str = resourceBundle.getString ( key ) ; 
    	} catch ( Exception e ){    		
    		str = "? - " + key ;
    		System.err.println(e) ;
    	}
    	
    	return str ; 
    }