Spill resistant computer keyboards?

[Cleveland wins]

Has anyone ever have or bought a spill resistant computer keyboard? I have a logictech k120 computer keyboard that i bought from office depot and apparently its spill resistent, and computer companies actually sell those.

I recently spilled a drink on my keyboard when i was moving it, i forgot that those drinks were there and water spilled on it and inside. But the keyboard still works! I had a similar keyboard in color, but not in shape and i spilled something on that one, but it stopped working.

What do companies who produce spill resistent keyboards use under the keys of their computer keyboards? And how is it spill resistent? Also it seems to be electronic as well, although not completely. Whenever i press the numlock or the caps lock buttons, a light above the numlock keys comes on.

There are three lights above the numlock keys.