Menu moves as page scrolls down

programming web dev
1

Hi guys,
anyone knows how the navigational menu like the one in www.designpop.co.kr is created? Once you get into the site, click on any links to access anyone of its sub pages. The navigational menu is displayed on the right side of the page. The menu moves as the user scrolls up and down the page. Any idea how it’s done? Thanks in advance.

2

javascript. dell.com does the same thing when you’re customizing a pc.

3

And any idea where can I learn more about this script?

4

http://www.dynamicdrive.com/dynamicindex1/staticmenu.htm

Something like that…

5

I see. Thanks.