Tilt object acceloremeter limited

Hi all,

I hope someone can help me out with this. In a simple game i am making i want to tilt an object on the horizontal axe.

The problem is i only want to tilt it a little to both sides and then stop tilting. So the tilting should be limited.

 var rollSpeed = 5.0;

var rollAmount = 0.0;

var currentangle = Input.acceleration.x;

function Update() {

if (Input.acceleration.x <90 ) {

 rollAmount += rollSpeed ;

} else if (Input.acceleration.x <90) {

 rollAmount -= rollSpeed ;

}

transform.Rotate(0, 0, rollAmount*Time.deltaTime);

}

This is the code i am working on right now. I don't know how to write the code this way that it will do what i want. The result i have now is that the object keeps turning...