jQuery UI Navigation

I am using jQuery UI Tabs where I have 3 tabs (T1,T2 and T3) displayed and have the following setup:

   $(function(){
      $tabs = $("#tabs_start_reg");
      $tabs.tabs();
      $tabs.show();
   });

I have the following queries relating to jQuery UI tabs.

Using jQuery:

1. How can I determine which tab the user has currently clicked on?

2. How can I calculate the total amount of tabs I am using, in this case 3?

3. Within the current tab that I am on, I need to branch to another page within my website that falls outside of my 开发者_如何学CjQuery UI tabs and perform some tasks there and then return back.

Now, how can I first store the tab that I am currently on, branch off to another page in the same website and then be able to return back to the tab that I was originally on?

Is this possible?

1) jQuery UI Tabs Get Currently Selected Tab Index

2) count the number of existing tabs in jquery?

3) http://forum.jquery.com/topic/jquery-ui-tabs-remember-currently-selected-tab-after-refresh

The magic of Google :-)