adding google analytics tracker

[kosei]

<script src="http://www.google-analytics.com/urchin.js" type="text/javascript">
</script>
<script type="text/javascript">
_uacct="UA-xxxx-x";
urchinTracker();
</script>

I have to add this right before the end of the body. How can I add this to every page in my forums?

I've seen a couple people say "drop it in the header template" or "footer template" but I don't really know what that means.

also seen it asked to be put in the "headincludes" but I don't know what that means either.