[jQuery] show/hide based on list selection

[jQuery] show/hide based on list selection


I have found this question in the archives and set up a test page based on
the responses I have found. But for me it is not working, the section is
hidden and doesn't reappear no matter what is selected. I have tried
several different browsers. The real task is on a more complex page, I am
just trying to get the simple test to work first.
The test page is at
http://globin.bx.psu.edu/phencode-test/t.html
Thanks,
Belinda