Problem with typing

Hi,

There is a problem with typing local language letters in Comments, Search etc.

Those commands should be enabled:

ALT+E
ALT+O
ALT+A
ALT+S
ALT+L
ALT+Z
ALT+X
ALT+C
ALT+N

(ALT in this combination is related to the right button in the keyboard)

Of course, combinations with capital letters with SHIFT button should be enabled also.

Some above letters I can type in the contact form, but others not.

http://ww.wp.xz.cn/extend/plugins/wp-content-copy-protection/