Sorry SV
Sounds like you're looking beyond the capabilites of HTML. At least with frames, which you really shouldn't use anyway.
There may be ways to achieve the effect using CSS and <DIV> tags, but i reckon you're into some complex CSS and possible JAVAScripting.
It would take some real thought to implement... Do you have an example you can post or atleast a page layout for visual reference?
I may be able to suggest a simpler approach.
Mike.