How to have multiple independently working controlllers for

Hi, i have the following problem - on my web project i will have two
areas (components) which will change (submit) independently. However,
the two areas will interact with each other, too, when some link is
clicked for example . There is a rough picture of my problem at thios
address : . The blue
areas are those who work independently form one another but at certain
actions they submit the other area. And there will be, also a scroll
for both of the blue parts.

So, my dilema is how to approach this situation? I think the two

blue areas will have their own controllers, so how i should handle
more than one controller on one view ?
I can do it entirely with ajax, but there are more complex object
which i have to validate, so i think they’d better be some kind of
I have read about ‘Cells’, but i have not tested them. Moreover,
cells are something which handles too small parts from the whole
picture, and i have more elements which i want to unify as a
Furthermore, what would u say about ‘components’ and ‘Componenets’
and the difference between them?
And finally, could you tell me about good component-oriented
frameworks for ruby because Rails is not.

thanx in advance and i hope we can learn form each other !