/** Action performed when Search By Address Radio Button is selected */
  public void rdBusRouteAction() {
    resetAll();
    mainView.enableAddressSearch(false);
    mainView.enableRouteDirections(false);
    mainView.enableRoute(true);
    mainView.enableRefresh(false);
    mainView.updateStatus(MainView.DEFAULT_STATUS);

    String[] tableColumns = BUS_ROUTE_COLUMNS;
    mainView.setTableColumns(tableColumns);
  }
  /** Action performed when Search By Address Radio Button is selected */
  public void rdSearchAddressAction() {
    resetAll();

    mainView.enableRoute(false);
    mainView.enableRouteDirections(false);
    mainView.enableAddressSearch(true);
    mainView.enableRefresh(false);
    mainView.updateStatus(MainView.DEFAULT_STATUS);

    String[] tableColumns = SEARCH_ADDRESS_COLUMNS;
    mainView.setTableColumns(tableColumns);
  }