AJAX Scroller retrieves RSS content, but will not scroll. Multiple JS errors.

Site is at www.ccwgolf.org .  Installed AJAX Scroller to bring a news RSS feel from the golf channel.  It retrieves the RSS, but will not scroll.

Firefox reports two JS errors:

1)  el.$tmp is undefined
in media/system/js/mootools.js

2)  el is undefined
in modules/mod_ajaxscroller/mod_ajaxscroller/scripload.php?file[0]=script.js&gzip=1

You have hundreds of JS errors on your site caused by mod_horizonSlim and possibly something else.
Uninstall AJAX Scroller, then clear your site of JS errors. Then install AJAX Scroller. You must not have JS errors prior to installing AJAX Scroller.