code: function (frame, cb, options) {
              this.loadBootstrap({
                  fn : this._loadATInFrameCb1,
                  scope : this,
                  args : {
                      options : options || {},
                      frame : frame,
                      cb : cb
                  }
              });
          }
docs: Load Aria Templates in the given frame and call the callback. This replaces the content of the frame.
  @param {HTMLElement} frame frame
  @param {aria.core.CfgBeans:Callback} cb callback. The first argument is an object containing success
  information.
  @param {Object} options The following options are supported:<ul>
  <li>iframePageCss {String} CSS text to be injected in the frame. E.g. {iframePageCss : "body {font-family:Arial}"}</li>
  <li>crossDomain {Boolean} when true, FrameATLoader works even when Aria Templates is loaded from a different domain (uses
  document.write instead of loading a URL)</li>
  <li>onBeforeLoadingAria {aria.core.CfgBeans:Callback} callback called just before loading Aria Templates in the frame</li>
  <li>skipSkinCopy {Boolean} whether to skip the copy of the skin from the current page</li>
  <li>keepLoadingIndicator {Boolean} whether to keep the loading indicator (DOM element with the "loadingIndicator" id) at
  the end</li>
  <li>extraScripts {Array of String} list of scripts to load in the page (inserted with the ScriptLoader at the end)</li>
  </ul>