title: javascript mouseover image swap issues
body: <p>I am trying to swap out a hover image with javascript but it doesn't seem to be working, any idea why? I thought this was the correct way to do this.</p>
  
  <pre><code>&lt;li&gt;
     &lt;a onMouseOver="document.fbi.src=images/facebookIconHover.jpg" onMouseOut="document.fbi.src=images/facebookIcon.jpg"
  href="http://www.facebook.com"&gt;
       &lt;img src="images/facebookIcon.jpg" NAME="fbi"&gt;
    &lt;/a&gt;
  &lt;/li&gt;
  </code></pre>