code: function (cfg, cb) {
                  var appE = Aria.getClassRef("aria.core.environment.Customizations");
                  if (appE && appE.isCustomized() && !appE.descriptorLoaded()) {
                      // the application is customized but the descriptor hasn't been loaded yet: register to the event
                      appE.$onOnce({
                          'descriptorLoaded' : {
                              fn : this._startLoad,
                              scope : this,
                              args : {
                                  cfg : cfg,
                                  cb : cb
                              }
                          }
                      });
                  } else {
                      // no descriptor was specified, or it has already been loaded: go ahead
                      this._startLoad(null, {
                          cfg : cfg,
                          cb : cb
                      });
                  }
              }
docs: Load a template in a div. You should call Aria.loadTemplate, instead of this method.
  @param {aria.templates.CfgBeans:LoadTemplateCfg} cfg configuration object
  @param {aria.core.CfgBeans:Callback} callback which will be called when the template is loaded or if
  there is an error. The first parameter of the callback is a JSON object with the following properties: {
  success : {Boolean} true if the template was displayed, false otherwise } Note that the callback is
  called when the template is loaded, but sub-templates may still be waiting to be loaded (showing a
  loading indicator). Note that success==true means that the template was displayed, but there may be
  errors inside some widgets or sub-templates.