How do I replace the thermostat. on a 1999 Mazda Protege?

This will help
http://i4.tinypic.com/10dirfm.gif
I would put in a new one anyways if I'm going to the trouble of taking it out. Only around 20 bucks.

follow the top radiator hose down to the engine and the housing that hose is attached to remove it and the thermostat will be located in under it,do your self a favor and drain some of the coolant out before you attempt to remove this other wise you,ll loose about a half gallon of good coolant,and make sure you don't over tighten the housing, they will break if you do,good luck.