var flashvars = { };
 var params = { allowScriptAccess:'always' };
 var attributes = { id:'myytplayer' };
 swfobject.embedSWF(
    'http://www.youtube.com/v/h-YHaD0NtvY?enablejsapi=1&playerapiid=ytplayer',
    'video',
    '219',
    '180',
    '8.0.0', /*  Flash Player8 以降を指定 */
    'lib/swfobject/expressInstall.swf',
    flashvars,
    params,
    attributes
 );

 /* プレーヤーの準備ができると呼ばれる関数 */
 function onYouTubePlayerReady(playerId) {
    ytplayer = document.getElementById('myytplayer');
		ytplayer.setVolume(0); //音量0に設定
 }