/**
   * Removes all information about custom entry types with tags of
   *
   * @param number or higher.
   */
  public void purgeCustomEntryTypes(int number) {
    purgeSeries(CUSTOM_TYPE_NAME, number);
    purgeSeries(CUSTOM_TYPE_REQ, number);
    purgeSeries(CUSTOM_TYPE_OPT, number);

    /*while (get(CUSTOM_TYPE_NAME+number) != null) {
    remove(CUSTOM_TYPE_NAME+number);
    remove(CUSTOM_TYPE_REQ+number);
    remove(CUSTOM_TYPE_OPT+number);
    number++;
    }*/
  }