MacBook key board not working

coffee was spilled on my keyboard, now keyboard will not work, I know not smart! Any how last four of S#J0P1 the specs 2.4/2x1g/160/sd-dl:white.(EMC no:2242) I want to replace the keyboard but can not locate the correct keyboard, (doing this for a friend) the mouse does still work but not the keys everything else is as it should be, removed keyboard once and cleaned the ribbion connector did not help.. Any and all help to solve this issue is greatly appreciated.

Harold