15
That one would work... I used this one:
http://www.dynamicdrive.com/dynamicindex17/ajaxtabscontent/index.htm
I liked this one's shade .gifs that can be customized, the demo.htm that can be used for development, and then it can be pasted right into your content, the .css, etc.
Magick can never be restrained, but when freely given is thrice regained!