After day of search:
It's bug of framework. It check key in onkeypress event and allow only 188 or 190 key ('.' and ','). But on russian keyboard it is 'б' and 'ю' key. Comma and dot is on 191 and 191+shift keis.
For resolve it I change onkeydown method to allow 191 key too and add onkeypress method to forbid {'б','ю','Б','Ю','/','?'}