Okay?

[doorlight]

What's the correct spelling of okay? Why does Firefox give it a red underline? :'"

[davemcnally]

That's the correct spelling. Maybe Firefox prefers things a bit more formal ;)

http://en.wikipedia.org/wiki/Okay

[BPartch]

I think either OK or okay is accepted just be consistent when using whichever you choose.

ok - Definitions from Dictionary.com (http://dictionary.reference.com/browse/ok)