var allowSwitchMedia = false;
    function onCommandsLoaded()
    {
            com.espn.utils.PlayerCommands.registerObserver("video_player_ready",com.espn.utils.PlayerCommands.VIDEO_PLAYER_READY,onVideoPlayerReady);
    }
    function onVideoPlayerReady(){
            allowSwitchMedia = true;
    }
    function switchVideo(mediaId){
            if (allowSwitchMedia) {
                    com.espn.utils.PlayerCommands.mpfVideoSwitchMedia(mediaId);
            }
    }