keyboard focus

Don't know wether my first posting got through or not, so I'll just
repost ...

After the lengthy xinerama discussion here I got to think about how I
use ion. As as consequence I find myself using float-splits more and
more often; now I wonder: 

Is it possible to have the float, that has no keyboard input expanded
(don't know if there is an "official" other word for it) ? i.e. see my
opera window in full size but type in my partly hidden emacs ? 

Thanks!

/Renee.

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For contacting me: klawitter(at)email(dot)de
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