{
      this.play();
    } else {
      this.pause();
    }
  } else if (e.keyCode == 38) {
    var volume = this.player.volume + .1;
    if (volume > 1) volume = 1;
    this.player.volume = volume;
    this.player.muted = false;
  } else if (e.keyCode == 40) {
    var volume = this.player.volume - .1;
    if (volume < 0) {
      volume = 0;
      this.player.muted = true;
    }
    this.player.volume = volume;
  } else if (e.keyCode == 37 || e.keyCode == 74) {
    if (!this.player.duration) return;
    var