网页中引用优酷视频默认自动播放超清

网页中会进场引用视频播放，怎么设置优酷视频自动播放超清

<!doctype html>
<html lang="en">
 <head>
  <title>自动播放超清测试</title>
 </head>
 <body>
  <embed src='http://static.youku.com/v1.0.0149/v/swf/loader.swf?VideoIDS=XMTM2NjA5NTUxNg&
&quality=high&isAutoPlay=true&isShowRelatedVideo=false'  width='480' height='400' align='middle' flashvars="winType=1" allowScriptAccess='always' allowFullScreen='true' mode='transparent' type='application/x-shockwave-flash'></embed>
 </body>
</html>

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