Thread: switch problems...

can anyone find an error in here that would prevent it from switching states?

Code:

static unsigned char state;
   static unsigned char countdown;
   TMR3CN &= ~(0x80);                     // clear TF3
   countdown = countdown-1;
   if (countdown == 0){
   		state = state + 1;
		}

   if (state > 4){
		state = 1;
		}
   switch (state){
   	case 1:
   		P1 = 0x44;
		countdown = 100;
		break;
   	case 2:
		P1 = 0x06;
		countdown = 16;
		break;
   	case 3:
		P1 = 0x11;
		countdown = 100;
		break;
 	case 4:
		P1 = 0x09;
		countdown = 16;
		break;
 	}