Phonegap-----Media

Everything in the code:

[html]
<!DOCTYPE html>
<html>
<head>
<title>Media Example</title>
<script type="text/javascript" charset="utf-8" src="cordova.js"></script>
<script type="text/javascript" charset="utf-8">

    var my_media = null;
    var mediaTimer = null;
    var music_src = "/android_asset/www/music.mp3";

    document.addEventListener("deviceready",onDeviceReady,false);

    function onDeviceReady(){
        playAudio(music_src);
    }

    function playAudio(src){
        my_media = new Media(src,onSuccess,onError);
        my_media.play();

        if(mediaTimer == null)
        {
            mediaTimer = setInterval(function()
            {
                my_media.getCurrentPosition(
                   function(position){
                       if(position > -1)
                       {
                           setAudioPosition((position) + " sec");
                       }
                   },
                   // error callback
                   function(e){
                       console.log("Error getting pos=" + e);
                       setAudioPosition("Error: " + e);
                   }
               );
            },
            1000);
        }
    }

    function pauseAudio()
    {
        if(my_media){
            my_media.pause();
        }
    }

    function continueAudio()
    {
        if(my_media){
            my_media.play()
        }
    }

    function stopAudio(){
        clearInterval(mediaTimer);
        mediaTimer = null;

        if(my_media){
            my_media.stop();

            // on an Android device,it is important to release the media
            media.release();
        }
    }

    function onSuccess(){
        console.log("playAudio():Audio Success");
    }

    function onError(error){
        alert('code: ' + error.code    + '\n' +
              'message: ' + error.message + '\n');
    }

    function setAudioPosition(position){
        document.getElementById('audio_position').innerHTML = position;
    }
</script>
</head>
<body>
    <a href="#" onClick="playAudio(music_src);">Play Audio</a>
    <a href="#" onClick="pauseAudio();">Pause Playing Audio</a>
    <a href="#" onClick="continueAudio();">continue Playing Audio</a>
    <a href="#" onClick="stopAudio();">Stop Playing Audio</a>
    <p id="audio_position"></p>
</body>
</html>

<!DOCTYPE html>
<html>
<head>
<title>Media Example</title>
<script type="text/javascript" charset="utf-8" src="cordova.js"></script>
<script type="text/javascript" charset="utf-8">

    var my_media = null;
var mediaTimer = null;
var music_src = "/android_asset/www/music.mp3";

    document.addEventListener("deviceready",onDeviceReady,false);

function onDeviceReady(){
  playAudio(music_src);
}

function playAudio(src){
  my_media = new Media(src,onSuccess,onError);
  my_media.play();

  if(mediaTimer == null)
  {
   mediaTimer = setInterval(function()补充：web前端 , HTML/CSS ,