macbook original settings

[jcx]

if I am to sell my macbook how do I restore it to it's original settings?

 

[jackiecanev2]

Wirelessly posted (Mozilla/5.0 (iPod; U; CPU like Mac OS X; en) AppleWebKit/420.1 (KHTML, like Gecko) Version/3.0 Mobile/3A110a Safari/419.3)

use the cds that came packaged with it and do a clean install.