docs: function (domEvent) {
              if (this.conf.closeOnMouseOut) {
                  if (!this.conf.closeOnMouseOutDelay) { // If delay is not set
                      // OR is equal to zero
                      this.close(domEvent);
                  } else {
                      this.cancelMouseOutTimer();
                      this._mouseOutTimer = ariaCoreTimer.addCallback({
                          fn : this._onMouseOutTimeout,
                          scope : this,
                          delay : this.conf.closeOnMouseOutDelay
                      });
  
                      this._attachMouseOverListener();
                  }
              }
          }