I know the basics of HTML, enough to build me a simple website. Recently I've been building a more complicated website with many pages. The layout is a navigation bar (a table) on the side and a heading image on top . I have about... 15 pages and the only thing that differs from each page is the body content. The problem is... when I need to make a change to a link on the navigation bar I have to do it to all 15 pages. I know this isnt the right way to do this considering that most of the websites are 10x more complicated than mine and would take them days to make an update. The extension for each page of mine is .html or .htm were as I see most (good) websites is either .asp or .php. What do I need to learn in order to make my updating a lot easier?
Thanks!
Thanks!