title: How to toggle audio play() pause() with one button or link?
body: <p>I have an audio file that plays when an anchor tag is clicked. If the anchor tag is clicked again, I want the audio to pause, I just don't know enough about javascript to pull this second half off. I don't want to change the content of the anchor tag they click, I just want the audio file to start and pause whenever they click the tag.</p>
  
  <p>This is what I have so far, which at least makes the sound file playable:</p>
  
  <pre><code>&lt;audio id="audio" src="/Demo.mp3"&gt;&lt;/audio&gt;
  &lt;a onClick="document.getElementById('audio').play()"&gt;Click here to hear.&lt;/a&gt;
  </code></pre>