how to do in game screenshots

Using the indie version of Unity, how do I take “in game” screenshots. Meaning, I would like offer the player the ability to take (and possibly save to jpeg) screen shots.

Something like this would be ideal…
Camera.MainCamera.SaveScreenShot(“name.jpg”)

http://unity3d.com/Documentation/ScriptReference/Application.CaptureScreenshot.html

Cheers,
Jon

Doh!

–Thanks!