          player.muted = false;
        }
        self.update_player_controls();
      }
      var handleVolumeMouseUp = function(e) {
        document.removeEventListener("mousemove", handleVolumeMouseMove);
        document.removeEventListener("mouseup", handleVolumeMouseUp);
        document.removeEventListener("touchmove", handleVolumeMouseMove);
        document.removeEventListener("touchend", handleVolumeMouseUp);
      }
      playerDiv.getElementsByClassName('player-volume')[0].onmouseleave = functi