title: addEventListener in a Chrome extension
body: <p>I'm trying to make a Chrome extension that can toggle whether a div position is fixed or static when another element is clicked.</p>
  <p>I am having a problem with <code>addActionListener</code>. This is what I have so far: <a href="http://jsfiddle.net/2LhAc/" rel="nofollow noreferrer">jsfiddle</a></p>
  <p>Where have I gone wrong?</p>
  <p>The id and class I have used in the html section are based on the site I am making the extension for. I am adding an empty div to <code>div.spacer</code> so that I can use it as my toggle button.</p>