Third Eye for the Norse Guy

I am currently working on a movable camera for my character and I have this script so far but i cannot get it to work. I will try to get it work over the next few days;

var target : Transform;
var distance = 10.0;

var xSpeed = 250.0;
var ySpeed = 120.0;

var yMinLimit = -20;
var yMaxLimit = 80;

var zoomRate = 20;

private var x = 0.0;
private var y = 0.0;

@script AddComponentMenu("Camera-Control/Mouse Orbit")

function Start () {
var angles = transform.eulerAngles;
x = angles.y;
y = angles.x;

// Make the rigid body not change rotation
if (rigidbody)
rigidbody.freezeRotation = true;
}

function LateUpdate () {

if (target) {
if (Input.GetMouseButton(0))
{
x += Input.GetAxis("Mouse X") * xSpeed * 0.02;
y -= Input.GetAxis("Mouse Y") * ySpeed * 0.02;
var test = 0;
test = y;
}
distance += -(Input.GetAxis("Mouse ScrollWheel") * Time.deltaTime) * zoomRate * Mathf.Abs(distance);
if (distance < 2.5)
{
distance = 2.5;
}
if (distance > 20)
{
distance = 20;
}


y = ClampAngle(y, yMinLimit, yMaxLimit);

//Debug.Log("y: "+y+" test: "+test);

if( y == yMinLimit && test == yMinLimit)
{
// This is to allow the camera to slide across the bottom if the player is too low in the y
distance += -(Input.GetAxis("Mouse Y") * Time.deltaTime) * 10 * Mathf.Abs(distance);
}

var rotation = Quaternion.Euler(y, x, 0);
var position = rotation * Vector3(0.0, 2.0, -distance) + target.position;

//Debug.Log("Distance: "+distance);
transform.rotation = rotation;
transform.position = position;
}
}

static function ClampAngle (angle : float, min : float, max : float) {
if (angle < -360)
angle += 360;
if (angle > 360)
angle -= 360;
return Mathf.Clamp (angle, min, max);
}