// Provide a default path to dwr.engine
if (dwr == null) var dwr = {};
if (dwr.engine == null) dwr.engine = {};
if (DWREngine == null) var DWREngine = dwr.engine;

if (NavigationPage == null) var NavigationPage = {};
NavigationPage._path = '/mgm-tp-navigation-portlet/dwr';
NavigationPage.getMenuItems = function(callback) {
  dwr.engine._execute(NavigationPage._path, 'NavigationPage', 'getMenuItems', callback);
}