Export Fireworks to Dreamweaver: Replacing Old Fireworks File Throughout Site

My question is this. I have created a Nav Bar in Fireworks that has six pop-up menus with varying numbers of links. This file will change throughout time, as links need to be added, changed, deleted, etc.

I know how to export and insert into a Dreamweaver page. However, it is my intent to have this Fireworks file (the nav bar) on every page throughout the site. I don't want to have to insert the Fireworks file on every page each time I change it. How do I export so that it replaces the Fireworks file on every page throughout the site?
Or, do I just send the Fireworks file to the server, and it will replace all instances on the server side.

I'm new to the pop-up menu stuff, and Fireworks offers an easy way to create and design a nice nav bar, but again, I don't want to have to load it onto 100 page every time I change links within Fireworks

Thanks!