Adding images to a tree menu

Hello!
I have this great menu: http://juicystudio.com/ecma/onlyone.html
I need to add open/close images for nodes, like here: http://www.softcomplex.com/products/tigra_tree_menu/

Unfortunatly I know nothing of JS: can anyone help me on this?

Thank you anyway. :)

I need to add open/close images for nodes, like here: http://www.softcomplex.com/products/tigra_tree_menu/

When you say "...like here...", do you mean you want to use the tigra scripting components and thereby achieving the same exact look? Or, do you mean you want to keep the look of your existing menu, but add open/close images and logic?
Since you don't know javascript, I would advise you to use tigra's scripts/icons/etc., because it appears that the whole package is free.