far cry question - key

[helpimcrap]

ive got a legit copy of far cry, however having a niece.... my manual and key has gone missing presumed eaten - dont ask.

how can i get the key back so i can reinstall it?

 

[helpimcrap]

hmmm i think ill install it and if it asks for a code ill just have to crack it. im not paying out again for it.