Stigern

#include <Servo.h>

Servo myservo;

int pos = 0;  // Variable to store the servo position.
int inputPhotoLeft = 1; // Easier to read, instead of just 1 or 0.
int inputPhotoRight = 0;

int Left = 0; // Store readings from the photoresistors.
int Right = 0; // Store readings from the photoresistors.

void setup()
{
  myservo.attach(9); // Attach servo to pin 9.
}

void loop()
{
  // Reads the values from the photoresistors to the Left and Right variables.
  Left = analogRead(inputPhotoLeft);
  Right = analogRead(inputPhotoRight);

  // Checks if right is greater than left, if so move to right.
  if (Left > (Right +20))
    // +20 is the deadzone, so it wont jiggle back and forth.
  {
    if (pos < 179)
      pos++;
    myservo.write(pos);
  }

  // Checks if left is greater than right, if so move to left.
  if (Right > (Left +20))
    // +20 is the deadzone, so it wont jiggle back and forth.
  {
    if (pos > 1)
      pos--;
    myservo.write(pos);
  }

  // Added some delay, increase or decrease if you want less or more speed.
  delay(10);
}