Add wake lock into an android app

I have an app code for android wrote in elclipse and i would like to have the app changed so it never goes into sleep mode using the WAKE_LOCK but i do not know how to do it the code will be available for the winning bidder it needs putting into FULL_WAKE_LOCK and thats the only part of the code you need to add as the rest is wrote ## Deliverables All i need is the code adding for FULL_WAKE_LOCK as i am not sure how to do it the rest of the code is there