How to install Japanese locale on AIX 5.1



I have one machine with AIX 5.1 and english locale installed. Now I
want to install Japanese locale on that machine. What steps do I have
to follow? Is there any installer available on internet which I have to
download and install or is it already present on my AIX box and I have
to activate it?
Following is the output from "locale -a" command.
C
POSIX
en_US
en_US.8859-15
en_US.ISO8859-1

I need this information ASAP. Any help will be highly appreciated.

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