RFID and Potentiometer code as one ?

Hi, I'm currently working on some code in processing which allows me to use RFID tags to load multiple images. I have the code that sends data from the RFID in Arduino to processing working, but I also want to send data for the potentiometer values over to processing but unsure how to code this, I have tried some attempts but no success.

Code for RFID

/* RFID ID12
*/

char val = 0; // variable to store the data from the serial port

void setup() {
Serial.begin(9600); // connect to the serial port
pinMode(13,OUTPUT);
digitalWrite(13,HIGH);
}

void loop () {
// read the serial port

if(Serial.available() > 0) {
val = Serial.read();
Serial.print(val, BYTE);

}
}

and code for the potentiometer;

void setup() {
  // initialize serial communication at 9600 bits per second:
  Serial.begin(9600);
}

// the loop routine runs over and over again forever:
void loop() {
  // read the input on analog pin 0:
  int sensorValue = analogRead(A0);
  // print out the value you read:
  Serial.println(sensorValue);
  delay(1);        // delay in between reads for stability
}

If you want to see me processing code, i'll happily post it.

Thanks