F10: how can I set default locale settings

[Pavel Lisy]

Hello

I have 2 problems.

First with setting default language and keyboard for GDM screen. 
Now I have US language and czech keyboard but I want have it opposite
way. Where can I set it?

Second problem is, that I want have czech locales after login 
but I cannot find place where I can set it? 

Can anybody help me?

Pavel Lisy

-- 
Pavel Lisy <pali at tmapy.cz>