Is there a simple way to construct an HTML file to display a page at a time in a manner similar to powerpoint, so that (say) clicking the mouse will cause display of the next logical page of the document

Why not use separate documents?

Otherwise, see http://www.alistapart.com/articles/eatcake/

Or in this case, rather go see at http://www.w3.org/Talks/Tools/.
I used Slidy a few years ago for an exposé of my daughter at school.