I'm having problems changing the background at certain times. I've loaded a file into processing using Ess and at 4 points I want it to change. I want it to change at 0, 419825, 779375 and 1021175 frames respectively. The code I'm using looks like this:

int frame = 0; //setting some parameters
int fear[] = {0}; // 1st part and the time to start it
int anger[] = {419825}; // 2nd part and time to start it

void draw() {
 frame++;
 backgrounds();
}

void backgrounds(){
 for (int i=0;i<fear.length;i++){
   if (frame!=fear[i]);
   background(0); // color of the background
   return;
 }
 for (int i=0;i<anger.length;i++){
   if (frame!=anger[i]);
   background(130,0,0);
   return;
 }
}

N.B. There have been things left out like void setup, but you shouldn't need that.

Does anybody have any suggestions for me???