Slashdot Menu - Adding Submenus

[yourbudweiser]

1) Script Title: Slashdot menu

2) Script URL (on DD): http://www.dynamicdrive.com/dynamicindex1/slashdot.htm

3) Describe problem: Is there any way to add submenus?

Scripts
-Menus
--Slashdot
--Switch
--Whatever

Thank you.