mhansen - 1:12 pm on Mar 10, 2012 (gmt 0)
@mslina2002 - It is done with JQuery... I noticed no effect on load times at all. Its a pretty flexible plugin, and is free.
Not sure abut the linking policy for things like this, so I wont link to it. But it's pretty easy to locate searching by name in the repository. You can apply your own styles to the tabs etc.
Disclosure: no relationship to the plugin... only used and liked it! :)