Different Materials

I’m working on a model(take a look at the Martian Fighting Machine WIP to see it) and the eyes are connected to the whole object. I want the eyes to have another material than the rest of the model. How can I do this?

Greetz Nuhvok

http://mediawiki.blender.org/index.php/Manual/PartIII/Multiple_Materials

Thanks, that is exactly what I meant!