Question on Fireworks drop-down menus

I use Fireworks to generate drop-down menus for my web sites. I like the way it works however I would like to make a nav bar that is universal throughout the entire site.

What I mean is when you insert the fireworks html and java into the html page it puts java script in the head and has an external .js that is uploaded into what ever directory that the html page lives.

I am wondering if there is a way to make the menus live on there own kind of like an include page for asp pages where you can make the include called navigation and whenever you edit the buttons in that htm or asp file it updates it on all pages with that include in it.

Is there maybe a different menu system that is easier to update and add new links to the menu with out having to go to every page in the site and add the new link in the java code in the head.