On my site, I have what I refer to as "photo sets". Many of these are more than one page. To tie these multiple-page photo sets together, I have been using navigation boxes at the top and bottom of the pages. For example:
The white box with "Part 1", "Part 2", and "Part 3" is the navigation box.
On my current site, I do this as an HTML file, which is then placed on the page using PHP. The box itself is a table that's styled with CSS.
How do I do a similar thing under WordPress? I want to include the same navbox across several pages, and it will link to pages inside WordPress. Thus doing it the way I have been doing it seems contrary to all of it being integrated together nicely, and there has to be a better way to do it. Any ideas?