This has to be a problem on your end, that is: locally. I have this exact file running on my server and test-server. Flush your browser cache and try again.
If you uploaded the file to
http://www.rletc.com/forum/photo_pop...=vB_Editor_001
that works just fine for me in any browser.
You can try:
- create a new file in your favourite text editor
- copy the contents (all of it) of my file over
- save it as photo_popup.php
- upload.