Changing Language layout on demand

[debian-list at arcor.de (Goran)]

> > Is there a way to change the keyboard and/or language layout by kernel
> > options?
> 
> man casper (or man live-initramfs) should help
> 
> > I want to distribute one variant of the debian-liveCD in several
> > countries. So it would be the best the user could choose the language
> > before booting.
> 
> man casper (or man live-initramfs) should help
> 
> something like "locale=it" do the trick.

Ok, I've done it as described above. Now I've edited the isolinux files
to create an own boot menu to simplify the language option. But I always
fail. 

Is it possible to choose the language and start the boot process by just
typing e.g. "F3"?

Thanks

Goran