JQuery :: Tabs Links Inside Tab To Other Tabs Work But Active Class Not Visible & External Link

I'm having issues with jquery and the tabs I'm using. My tabs work but... I want some more functions and that seems to be a big problem for a Javascript and jquery newby.

My HTML:

Code:
<ul class="tabs">
<li>Tab1</li>
<li>Tab2</li>

[Code]....

I really don't know if this is correct but it works! What doesn't work is the active class. If you use one of the buttons in the first tab you go to the right tab but the tab itself has no class called active and that ruins the style.

2)
I also have one other question: lets say that all the above is my second page and I have my frontpage in which I also have buttons. I want somebody to use the button and end up in the third tab of page 2. My link is something like

Code:
page2.html#tab3

I read that using this should lead you the third tab but it's not working for me. You go to the first tab of page 2 instead.

I've been reading a LOT! Jquery for dummies, I googled, read the forum and other forums. I posted on a Dutch forum but no answer. I've added a lot of different code but it doesn't work.