how to detect end of audio file using jquery and html5

You can add event listeners for the ended and playing events. Also, why creating a audio tag via javascript? I would just create an empty hidden audio tag:

<audio id='myAudio' autoplay='autoplay'></audio>

You have two options:

• disable/enable the button/link when audio is playing/stopped (preferred imho)
• ignore clicks when already playing

Then add two eventlisteners to it:

var playing = false;

$('#myAudio').on('playing', function() {
   playing = true;
   // disable button/link
});
$('#myAudio').on('ended', function() {
   playing = false;
   // enable button/link
});

$("p").click(function (event) {
   if(!playing) {
      var element = $(this);
      var elementID = event.target.id;
      var oggVar = (elementID +".ogg");   
      var audioElement = $('#myAudio')[0];
      audioElement.setAttribute('src', oggVar); 
      audioElement.play();
   }

});