external power servo problem

Using Arduino Motors, Mechanics, Power and CNC
3

datasheet for the servo
http://www.parallax.com/Portals/0/Downloads/docs/prod/motors/900-00008-CRServo-v2.1.pdf
and my code

//simple code to rotate one servo right and one servo left in full speed

int servoPin1 = 6;
int servoPin2 = 7;

void setup()
{
pinMode(servoPin1,OUTPUT);
pinMode(servoPin2,OUTPUT);
}
void loop()
{

digitalWrite(servoPin1,HIGH);
delayMicroseconds(1200);
digitalWrite(servoPin1,LOW);
delay(20); // 20ms

digitalWrite(servoPin2,HIGH);
delayMicroseconds(1800);
digitalWrite(servoPin2,LOW);
delay(20); // 20ms


}

schematic ??
i just connect the servos to the breadboard in my first post