Milonic JavaScript Menu

You help me good, to realise the sensation of push menu, but when I go outside of the clicked menu, this restore itself to original values. I need mantain the menu clicked until I don't click on another menu.

I need make a menu with a particular specifications:

Only need main menus, no submenus

When I click in one option, this must appear clicked (color change) until click in another option.

I try keepalive but this property not affect aparently

Any help, example?

Thanks. Excuse my poor english I'm ...