docs: function () {
              if (!this._isIE7OrLess) {
                  this._hashChangeCallbackAdded = true;
                  ariaUtilsAriaWindow.attachWindow();
                  ariaUtilsEvent.addListener(Aria.$window, 'hashchange', {
                      fn : this._internalCallback,
                      scope : this
                  }, true);
              }
  
          }