The jQuery EasyTabs plugin handles all of the functionality of tabs and none of the styling.
You can browse versions by URL.
E.g. /projects/easytabs/versions/2/1 would include versions 2.1, 2.1.1, 2.1.2, etc.
/projects/easytabs/versions/2/1
2.1
2.1.1
2.1.2