problem incorporating tabs

Hi.
To cut it short: I have a page (index.html) with two div elements:
"navigator" and "content". Whenever a link pointing to a page is
clicked that page is loaded via $.ajax into the "content" div. When I
tried to use the sample code from this article (in a form of a page
which I load into the "content" div) I figured out that tab's script
won't work. When the page is viewed standalone it does work perfectly
as is expected.
I guess there is something wrong with loading pages into divs via
$.ajax, but I fail to figure it out.
PS: The index.html page contains all the scripts that I use throughout
the site - this is just the central place for scripts and styles.
Please, help me solve this. I am just feeling bad I cannot resolve my
bug myself. :-(
With best wishes, Dmitry.