Make a 2D Camera vertically stationary?

I want the camera in my 2D game to be vertically stationary, while still following the character horizontally. These are modified SmoothFollow2 scripts. Thanks.

var target : Transform; var distance = 3.0; var height = 3.0; var damping = 5.0; var smoothRotation = true; var rotationDamping = 10.0; var lockRotation : boolean;

function Update () { var wantedPosition = target.TransformPoint (0, height, -distance); transform.position = Vector3.Lerp (transform.position, wantedPosition, Time.deltaTime * damping);

  if (smoothRotation) {
     var wantedRotation = Quaternion.LookRotation(target.position - transform.position, target.up);
     transform.rotation = Quaternion.Slerp (transform.rotation, wantedRotation, Time.deltaTime * rotationDamping);
 }

 else transform.LookAt (target, target.up);
 
 if (lockRotation);{
      transform.localRotation = Quaternion.EulerAngles(0,0,0);
 }

}