Japanese Symbols over Japanese Symbols?

[Namsuke]

I have noticed this for a while and I am now dying to know... xP
Sometimes there are small Japanese symbols over bigger japanese symbols. What are they? For example: look at the top of this page, over "Let's learn Japanese together!"

[chikara]

They are called Furigana and they indicate the pronunciation of the kanji.

[Namsuke]

So... boldly, they tell us how to read that symbol. How to pronunciate it. For example: Christmas would probably have kris-mis over the word if they were to apply Furigana to the English language, am I right?

[NileCat]

Exactly.

(kurisumasu / くりすます / クリスマス）