[jQuery] Troubling IE problem

[jQuery] Troubling IE problem


I recently completed using jQuery to build a navigation structure for
the site I manage at work. The site is http://www.msi.umn.edu.
The script giving problems is http://www.msi.umn.edu/js/leftnav.js.
The difficulty seems to be in the step where I add a span to menu
items that have a sub-menu using .prepend(). The span holds my
expanded/collapsed graphics and gets a .toggle() to expand and
collapse the appropriate menus and other behaviors.
IE 7 isn't inserting the span and, thus, my navigation scheme fails
when using IE7. I'm fortunate that most of my users are using Firefox
or Safari, but there's still a significant portion of IE users getting
the shaft out there.
I'd appreciate anyone being able to take a look and shoot me ideas for
fixing the problem.
--
Peter Hentges
JBRU