Running your page on my server brings the same result, even if I make the calls absolute (
http://www.ckcsc.org/ckcsc/new_ckcsc_in ... nic_src.js, etc.). Changing the 3 code file calls only to get the code from my server (not the _data file, I still call that from your server) results in a working menu, subs and all.
When I view source I'm not happy with the jumbled mess I see displayed (everything is run together). I would suggest re-loading the code files to your server. Make sure you select text or ASCII when doing so (don't rely on 'automatic').
Point is, if there were a _data file problem it wouldn't work here, either, so there has to be something in the code files. You didn't do any editing in there, did you? Don't forget to add your license number to the code files (that's all you get to edit there!).