<script type="text/javascript">
var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");
document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));
</script>
<script type="text/javascript">
try {
var pageTracker = _gat._getTracker("UA-4506869-6");
pageTracker._trackPageview();
} catch(err) {}</script>
it's all codes
livejournal posts in general do no accept javascript... or google analytics for that matter...
you might be able to try putting it on your main website itself... but i dun recall if you can change the tags of livejournal...
this might help... if you're into poking around the innards of your livejournal...
however it puts the gaJs scripts in the head of the page rather than at the bottom of the page.
but it should still work (probably not the most elegant way of implementing it)...