How to compare two temperatures

[SKOLS1]

I want to compare two temerpatures for thermostat that I am making.So,where I should get started.I want to make the thermostat with MAX6675 and PIC16F876A @ 4MHz.Any examples,or code for this issue?

[mackrackit]

http://www.picbasic.co.uk/forum/showthread.php?t=10759&highlight=MAX6675

[SKOLS1]

http://www.picbasic.co.uk/forum/showthread.php?t=10759&highlight=MAX6675
I have this code,I used to "read" the MAX6675.How to compare the themperature with given themperature?I want to make thermostat.

[mackrackit]

How about this?
http://www.picbasic.co.uk/forum/showthread.php?t=12712