Two keyboard layouts with toggle in console

[Kurshakov Dmitriy]

Hi.

Is it possible to write an operating system configuration having two different 
keyboard layouts (in my case -- "us" and "ru") with toggle (preferely by Caps 
Lock) for console?
For now, I have /etc/config.scm with: (keyboard-layout (keyboard-layout "us" 
"altgr-intl")) under "operating-system" declaration. Every time after logging 
into shell, I need to run "loadkeys ruwin_cplk-UTF-8" command. After that, I 
have two different layouts and can swith between tem by Caps Lock. When I 
changed keyboard-layout to "ru" in config.scm there was no english layout at 
all.
How can I solve the problen in "right" (or "reproducible") way?

WBR, Dmitry.