docs: function (idQueue) {
                  var id = idQueue;
                  if (idQueue == null) {
                      id = this.DEFAULT_QUEUE_KEY;
                  }
                  var queue = this.queues[id];
                  if (queue && queue.list.length > 0) {
                      this.pauseAnimation(queue.list[0].animId);
                      return true;
                  }
                  return false;
              }