Testing Potentiometer

/*
 * Britney Beatey
 * Testing Potentiometer
 */

#include <Servo.h>
Servo sM;
const int potPin = A0;
int potVal;
int angle;


void setup() {
  pinMode (potPin, INPUT);
  sM.attach(9);
  Serial.begin (9600);
  sM.write (45);
  delay (500);
  sM.write (90);
  delay (500);
  sM.write (135);
  delay (500);
  sM.write (180);
  delay (500);
  sM.write (225);
  delay (500);
  sM.write (270);
  delay (500);
  sM.write (315);
  delay (500);
  sM.write (360);
}

void loop() {
//  Serial.println(analogRead(potPin));

//  potVal = analogRead (potPin);
//  sM.write = map (potVal, 0, 1023, 0, 179);
//  sM.write = constrain (sM.write, 0, 179);
//  sM.write(sM.write);
//  sM.write (45);
//  delay (500);
//  sM.write (90);
//  delay (500);
//  sM.write (135);
//  delay (500);
//  sM.write (180);
//  delay (500);
//  sM.write (225);
//  delay (500);
//  sM.write (270);
//  delay (500);
//  sM.write (315);
//  delay (500);
//  sM.write (360);
}