Track users clicking outbound links

I'd like to be able to track users clicking outbound links. It would be nice if we could specify an onclick event that could be added to outbound links like this:

onClick="javascript:urchinTracker ('/outgoing/linkname');"

where linkname is the name of the outbound url. Although I haven't tried this yet, it should then be possible to track clicks using Google Analytics. For more info, see:

http://forums.digitalpoint.com/showthread.php?s=45c2a6e7bacbde17a72aa196...

Alternatively (and this is my ideal solution) it would be grate if we could log the clicks to Drupal and not rely on G.A. I presume this would require an exit page, something like this:

http://example.com/myexitpage.php?url=http://example2.com/somepath