Javascript wont run correctly
<p><a href="http://jsfiddle.net/NCt4D/" rel="nofollow">http://jsfiddle.net/NCt4D/</a></p>

<p>I want it to move (the image is large), but it dont work.</p>

<p>Firebug says reference scrollDivDown is not defined, but it's there?</p>
