Where can I download a japanese keyboard to my PC?

Question:

I'd like to download a japanese keyboard to my computer. Like, all the hiraganas if I can't get anything else.
This is just to practise my writing and stuff, even while I'm not able to connect to the internet.

If you can help, please do. I'm about to go on a 6 week long trip to Spain and I'm not going to have any internet there. I want to be able to practise during that time, otherwise I'd forget tons of things, so it'd be realy helpful! ^^

Answer:

Google ( E-How, Japanese keyboard ) nice little tool, my Son uses it. Hiragana, katakana & Kanji

P.s. Best to print out the real easy instructions first.