Mac OS X Screen Cracked! Please help!

I was showing my friend my nerf gun on Skype, and i accidentally hit the screen and it cracked. The damage is small, on the upper black part next to the webcam, and although there is no internal damage and only a small crack at the top of the screen, my parents want it fixed. I was wondering the chheapest way to replace/fix it. I've heard that apple won't put it under warranty unless it was the computer's fault, so i thought you might have a better way to get around it. By the way its a OS X Snow Leapord. Thanks!

What kind of computer is it?

It is a OS X Snow Leapord (not sure what number), but the Genius said he could repair it for free. Thanks anyway though!

LOL! Well, OK then.

This thread gets my vote for most interesting of the day.