Gun movement(js)

private var MouseXAmount:float;
private var MouseYAmount:float;
var equalpoint:float=10;
function Update () {
MouseXAmount=-Input.GetAxis("Mouse X");
MouseYAmount=-Input.GetAxis("Mouse Y");
var Next=Quaternion.Euler (-MouseYAmount, MouseXAmount,((MouseXAmount+MouseYAmount)/3)) ;
transform.localRotation = Quaternion.Slerp(transform.localRotation, Next,Time.deltaTime * equalpoint);
}