DHTML Menu help

Is there a way to make the DHTML menu on the left hand side open one of the menu's at all times?

http://www.gunstocks.com/phpsite/modules/gallery2/main.php

i want to make it so that it automatically opens a specific menu when i click a link. such as "Bargain Stocks" i want to to go to the bargain stock gallery, and open the menu to show all the available sub-albums.

if you can make it do it for any of these, i can probably figure out how to duplicate it for each one needed.