Complex regions and content division

Hi All,

I've been working on a fairly complicated requirement for a few days now but I'm beginning to think that XSL-FO may not be right for what we are trying to achieve.

We have an A4 paper form that we are trying to format in such a way that, the top section is either less than or exactly half of the page and the bottom section uses the remaining available space. I.e. The bottom section is always aligned with the bottom of the top section.

Here was our first problem were I basically required a 'dynamic' region size based on the formatted content, so we fell into the trap of requiring feedback from the code applying the XSL-FO. I have read now that this is not supported. So we had to find our own way of feeding back etc. any better suggestions would be appreciated.

Secondly, and more complicated, is that if the content of the top section exceeds the region it is required to use all of the available space on page two; not just the region defined for it's content. I know this sounds crazy (I don't write the requirements) and I'd consider this impossible to span content across nodes further up the hierarchy of the FO; but never mind.

I would be grateful for any comments and suggestions on this subject.

Thanks, John Virgo