Aspell under Emacs - multiple dictonaries
I'm using Aspell as a spelling checker for Emacs. I know that, as a standalone, aspell can handle multpiple dictionaries (using extra-dicts param), but how to configure it under Emacs? I know very little of emacs lisp... Could I provide some "ispell extra-args" in .emacs file? Would that work? If so I'd really appreciate simple example ...