title: Throw away sound effects in Javascript using HTML5 audio?
body: <p>I'm building a simple game using a canvas tag and want to add some sound effects to it.
  If I use the following code to play the SFX...</p>
  
  <pre><code>function playSfx( sound ) {
   var snd = new Audio("file.mp3");
   snd.play();
  }
  </code></pre>
  
  <p>Is the garbage collection / memory management clever enough to play the sound and then dispose of the Audio object? Or will I have to keep track of the object and destroy it when it has finished playing?</p>