INT 2F U - POWER.EXE - GET/SET IDLE DETECTION STRATEGY                          
	AX = 5402h
	BH = subfunction
	    00h get
	    other set
		BL = detection strategy (00h-0Fh or FFh)
Return: BX = current/new detection strategy
SeeAlso: AH=53h,AX=5400h,AX=5401h,AX=5481h,AX=5482h