Navbar repetition, How to avoid writing my Navbar in each page Options

[GaryE]

My website is http://bostontechnicalwriter.x10host.com/

My navbar section is exactly the same in my index page and each of my subject pages (Blogging: Electronic Products Magazine, IEEE Globalspec, etc, etc.)

Right now, if I want to add or delete one of the subject pages, I have to modify the navbar not only on the index page, but in each of the dozen or so subject pages. This is a cumbersome, error prone task. Is there any way to write only one navbar, and have it apply to the index page and all the subject pages?

BTW: Are "Navbar" and "subject Pages" the correct words?