It's in the body, not the head.

<script src="linky.js"></script>

Here's what's inside the js file.

document.write("testing")

Simple basic write line. Still zilch. FYI for those wanting to know, I'm trying to do away with including a standard HTML menu on the side in every page, so I don't have to edit every page should I wnt to change the menu, so I figured javascript would be the safest bet (I'm not using frames, or iframes for that matter).