threshold value with LED

hi friends

Can any one say how to get the led with green light or red light according to the condition. That is am doing a report program for the workflow tracking wheather the request is approved or rejected. If approved it should be in green colour led if its rejected it should be in Red color LED. Can any one explain me the piece of code. Dont give the example of SFLIGHT . I have already analysed that. But i want some thing different.

Regards

vijay