public void loadCitiesDb(Context context) {
   mCitiesDb.clear();
   // Read the cities DB so that the names and timezones will be taken from the DB
   // and not from the selected list so that change of locale or changes in the DB will
   // be reflected.
   CityObj[] cities = Utils.loadCitiesDataBase(context);
   if (cities != null) {
     for (int i = 0; i < cities.length; i++) {
       mCitiesDb.put(cities[i].mCityId, cities[i]);
     }
   }
 }