<button onclick="getMedGroup()" type="button">获得视频的媒体组合</button>
<button onclick="setMedGroup()" type="button">设置视频的媒体组合</button>
<video id="video1" controls="controls">
<source src="/example/html5/mov_bbb.mp4" type="video/mp4">
<source src="/example/html5/mov_bbb.ogg" type="video/ogg">
Your browser does not support HTML5 video.
<video id="video2" controls="controls">
<source src="/example/html5/mov_bbb.mp4" type="video/mp4">
<source src="/example/html5/mov_bbb.ogg" type="video/ogg">
Your browser does not support HTML5 video.
myVid1=document.getElementById("video1");
myVid2=document.getElementById("video2");
alert("Video 1 media group: " + myVid1.mediaGroup +
". Video 2 media group: " + myVid2.mediaGroup);
myVid1.mediaGroup="test";
myVid2.mediaGroup="test";