Where to find Locomotion System documentation?

Hello, i just started working with unity3d...'

I tried searching for Locomotion System documentation on unity3d.com and google.com, but couldn't find it...

It would be very helpfull if someone could give me a link to it.

Thank you in advance.

Here it is: http://unity3d.com/support/resources/unity-extensions/locomotion-ik :D