private void initDisplayNames() {
        displayNames = new HashMap<String, String>();
        
        for (File f : resolver.listFiles("localisation")) {
            try {
                BufferedReader r = new BufferedReader(new FileReader(f), (int)f.length());
                String line;
                while ((line = r.readLine()) != null) {
                    String[] array = line.split(";");
                    displayNames.put(array[0], array[1]);
                }
                r.close();
            } catch (FileNotFoundException ex) {
                ex.printStackTrace();
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }
    }