在http://www.w3school.com.cn学习html5的时候，看到一个检测您的浏览器是否支持 HTML5 视频的方法：
运行效果：
1.在EditPlus中运行
2.在chrome浏览器中运行
=======================================================
代码部分：
=======================================================
<!DUCTYPE HTML>
<html>
<script type="text/javascript">
function checkVideo()
{
if(!!document.createElement('video').canPlayType)
{
var vidTest=document.createElement("video");
oggTest=vidTest.canPlayType('video/ogg; codecs="theora, vorbis"');
if (!oggTest)
{
h264Test=vidTest.canPlayType('video/mp4; codecs="avc1.42E01E, mp4a.40.2"');
if (!h264Test)
{
document.getElementById("checkVideoResult").innerHTML="Sorry. No video support."
}
else
{
if (h264Test=="probably")
{
document.getElementById("checkVideoResult").innerHTML="Yes! Full support!";
}
else
{
document.getElementById("checkVideoResult").innerHTML="Well. Some support.";
}
}
}
else
{
if (oggTest=="probably")
{
document.getElementById("checkVideoResult").innerHTML="Yes! Full support!";
}
else
{
document.getElementById("checkVideoResult").innerHTML="Well. Some support.";
}
}
}
else
{
document.getElementById("checkVideoResult").innerHTML="Sorry. No video support."
}
}
</script>
<body>
<p>检测您的浏览器是否支持 HTML5 视频：</p>
<div id="checkVideoResult">
<button>Check</button>
</div>
</body>
</html>