modify code to transmit through bluetooth instead

hi .
there is this tutorial on the Arduino homepage that shows how to get readings from three axis accelerometer :

How to modify the code to transmit the readings through bluetooth instead, any settings/additions need to be added ?

code here :

This example code is in the public domain.

*/

// these constants describe the pins. They won't change:
const int groundpin = 18; // analog input pin 4 -- ground
const int powerpin = 19; // analog input pin 5 -- voltage
const int xpin = A3; // x-axis of the accelerometer
const int ypin = A2; // y-axis
const int zpin = A1; // z-axis (only on 3-axis models)

void setup()
{
// initialize the serial communications:
Serial.begin(9600);

// Provide ground and power by using the analog inputs as normal
// digital pins. This makes it possible to directly connect the
// breakout board to the Arduino. If you use the normal 5V and
// GND pins on the Arduino, you can remove these lines.
pinMode(groundpin, OUTPUT);
pinMode(powerpin, OUTPUT);
digitalWrite(groundpin, LOW);
digitalWrite(powerpin, HIGH);
}

void loop()
{
** // print the sensor values:**
** Serial.print(analogRead(xpin));**
** // print a tab between values:**
** Serial.print("\t");**
** Serial.print(analogRead(ypin));**
** // print a tab between values:**
** Serial.print("\t");**
** Serial.print(analogRead(zpin));**
** Serial.println();**
** // delay before next reading:**
** delay(100);**
}