One of the most common questions I get is how to share one HTML file in multiple Web pages. For example, if you have a copyright notice that you want on every page of your site, you can either create it and edit it manually every year, or you can use an include system to edit that section of code once and then copy it across the rest of the site. A long time ago, I wrote an article that explained how to share HTML snippets
using several technologies like PHP and SSI. But if you don't have PHP or SSI, you can still do it using Dreamweaver.