long age = Navigation.getConfig().getIndexPageCacheLifetime();
if (age == 0) {
DispatcherHelper.cacheDisable(response);
} else {
DispatcherHelper.cacheForWorld(response, (int)age);
}
((com.arsdigita.london.navigation.ui.CalendarBrowser) categoryItemList).addAttribute("objectType");
((com.arsdigita.london.navigation.ui.CalendarBrowser) categoryItemList).setHowMany(30);
itemPage.addGlobalStateParam(new BigDecimalParameter("categoryID"));