auto center menus

Hi people,

Wondering if you have any ideia how to center CSS based menus, depending on the number of menus. This need is due to various user roles with diferent number of menus available for each user type.

My style is based on simplicity and my menu displayer is "net.sf.navigator.displayer.CSSListMenuDisplayer" using the struts-menu-2.4.2

My nav CSS file is based on this demo http://demo.raibledesigns.com/struts-menu/cssVertical.jsp

Thks,

Pedro A.