Problems with Dropdown HTML control

[isrie]

1) Script Title: Dropdown HTML control

2) Script URL (on DD): http://www.dynamicdrive.com/dynamici...owncontrol.htm

3) Describe problem: Hello, I add this code to my site, just for a test, but it doesn't work. Acutally I'd like to use this code with images. But still the simple code given on the dynamicdrive site doesen't work.
Could anybody help me with this??!! I'd be very very happy.

Thanks!!!

This is the link to the site: http://www.frauen-am-werk.de/wohnprojekt-jungaltX.html