I have a question about how to create the type of navigation menu that http://www.digg.com uses. The categories are "Technology" "Science"
"World & Business" "Sports" "Entertainment" and "Gaming". And a pointer specifies which menu you have currently selected. Now when you click on a topic and you are taken to the next page, the navigation menu has changed and below it, are categories within the category you selected, and the category within the category that you are currently in is also specified by an arrow. Now I have been searching for how to recreate such an effect and have come up empty...I was wondering if anyone here would be kind enough to explain or point me in the direction of a helpful tutorial...

http://www.dynamicdrive.com/style/cs...css-tabs-menu/
~that is an example of one already made, but I wanna learn how it works and create my own

http://www.dynamicdrive.com/dynamicindex1/ddtabmenu.htm
~also something similar...


I've noticed, with the dynamicdrive.com examples, that javascript is used, I do not believe digg uses javascript. Is there a way to achieve this effect only using css? In basic terms, I wanna learn how to create a navigation menu, that tells the user what category they are currently in...with a submenu directly below it that also tells the user what subcategory they are currently in...help please?

EDIT: http://design.linkworth.com/test.html
~~~Just found that site, and that is exactly the effect I want to create.....I don't want the hover feature that is used here tho...