Do you really need them in a single document? Within a document, the
user metaphor is a scrollable area. The user often has a choice of
window size on that area. It is unwise to make assumptions about
that.
I think you are looking for page jumps, and so logically what you
wnat is a set of documents. Now you could of course store these in
one file and write a little server script which would extract the
documents from the file. (Note distinction between "document" = unit
of data carried over the net per fetch, and "file" which is a concept
local to the server.
This is what Mike Sendall has done with his STING glossary, for
example (I think).
It would also be neat for mailbox files.
Tim BL