private var yRspeed = 1.0;
private var frik = 0.5;
private var xRspeed = 0.05;
private var xRot : float =0.0;
private var yRot : float =0.0;
private var rotRand1 :float = 0.0;
private var rotRand2 :float = 0.0;

rotRand1 = Random.Range(0, 6);
rotRand2 = Random.Range(0.5, 2);
yRot = Random.Range(0.8, 3) * yRspeed;
	
function Update () {
xRot = (Mathf.Sin((Time.time + rotRand1) * frik)* (xRspeed * rotRand2) - xRot);
transform.Rotate ( 0, Time.deltaTime * yRot , 0, Space.World );
transform.Rotate ( xRot, 0, 0, Space.Self );
}