​x
 
<!DOCTYPE html> 
<html> 
<body> 
​
<button onclick="enableControls()" type="button">启动控件</button>
<button onclick="disableControls()" type="button">禁用控件</button>
<button onclick="checkControls()" type="button">检查控件的状态</button>
<br> 
<video id="video1">
  <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>
​
<script>
myVid=document.getElementById("video1");
function enableControls()
  { 
  myVid.controls=true;
  myVid.load();
  } 
function disableControls()
  { 
  myVid.controls=false;
  myVid.load();
  } 
function checkControls()
  { 
  alert(myVid.controls);
  } 
</script> 
​
</body>
</html>
​