How to interface more than one servo with PIC 16F887

I know how to do this with one of it but in the simulator when i try to do with 2 ones it does not work. I really need know hot to do it. i put the code right here.

int espacios = 0;

void servoRotate90() //90 Degree
{
  unsigned int i;
  for(i=0;i<50;i++)
  {
    PORTB.F0 = 1;
    Delay_us(1500);
    PORTB.F0 = 0;
    Delay_us(18500);
  }
}

void servoRotate180() //180 Degree
{
  unsigned int i;
  for(i=0;i<50;i++)
  {
    PORTB.F0 = 1;
    Delay_us(2200);
    PORTB.F0 = 0;
    Delay_us(17800);
  }
}

void servo1Rotate90() //90 Degree
{
  unsigned int i;
  for(i=0;i<50;i++)
  {
    PORTB.F1 = 1;
    Delay_us(1500);
    PORTB.F1 = 0;
    Delay_us(18500);
  }
}

void servo1Rotate180() //180 Degree
{
  unsigned int i;
  for(i=0;i<50;i++)
  {
    PORTB.F1 = 1;
    Delay_us(2200);
    PORTB.F1 = 0;
    Delay_us(17800);
  }
}

void main()
{
  TRISB = 0; // PORTB as Ouput Port
  TRISA = 1;
  ANSEL = 0;                                    // Configure AN pins as digital
  ANSELH = 0;
  C1ON_bit = 0;                                 // Disable comparators
  C2ON_bit = 0;

  while(1){

    if(PORTA.RA0){
    Delay_ms(20);
    espacios++;
    servoRotate90(); //90 Degree
    Delay_ms(3500);
    }
    else if(!PORTA.RA0){
    servoRotate180(); //180 Degree
    }
    else if(PORTA.RA1){
    Delay_ms(20);
    espacios--;
    servo1Rotate90(); //90 Degree
    Delay_ms(3500);
    }
    else if(!PORTA.RA1){
    servo1Rotate180(); //180 Degree
    }
    else if(PORTA.RA1&&PORTA.RA0){
    espacios = espacios;
    servoRotate90(); //180 Degree
    servo1Rotate90();
    Delay_ms(3500);
    }
    else{
    servoRotate180(); //180 Degree
    servo1Rotate180();
    }
  }
}