How do change itunes store nationality?

i was in the canadian itunes when i dont know how but went into japanese itunes store, how do i change baack??? i dont have a itunes account and i dont plan on making one.|||On the music store homepage, towards the bottom, there should be a list bar thing with a flag next to it. Its the last thing on the page before the copyright information. The flag is to the right of the list bar. Click the list and select english. If the word 'English' is in Japanese, just click each language until you get to English (or canadian).