docs: function (evt) {
              var keyCode = evt.keyCode;
              if (this.controller._isExpanded && (keyCode == ariaDomEvent.KC_ARROW_UP || keyCode == ariaDomEvent.KC_ARROW_DOWN)) {
                  // in expanded mode (similar to the multiselect), for arrow keys, do not bring the focus
                  // back to the field and let the event be processed in the list, otherwise the focus
                  // (which is updated asynchronously in IE) will not be on a check box
                  return false;
              }
              return this.$AutoComplete._keyPressed.apply(this, arguments);
          }