turn mouse look on and off using the 'm' key

I have a crate that opens when you press 'e' and a loot window appears thats when i want to disable my FpsMouseLook then when im done picking my item and close the loot window i can turn the FpsMouseLook back on using the same button to turn it off 'm' I can turn it off but cant get the mouselook to turn back on. here what i got please help

 public enum RotationAxis {MouseX = 0, MouseY = 1}

      var RotationAxisRotationXY = RotationAxis.MouseX || RotationAxis.MouseY;
      
      
      
      var sensitivityX : float = 400f;
      
      var minimumX : float = -360f;
      
      var maximumX : float = 360f;
      
      var RotationX : float = 0f;
      
      var OriginalRotation : Quaternion;
      
      



     var RotationY : float = 0f;
     
     var minimumY : float = -25f;
     
     var maximumY : float = 25f;
     
     var sensitivityY : float = 400f;
     
     

function Update () {

        //******************Here is where im trying to turn it on and off***********//
       if(Input.GetButton ("Fire1") && GetComponent (FpsMouseLook))
         Destroy (GetComponent (FpsMouseLook));
       //*************************************************************************//
         if(RotationAxisRotationXY == RotationAxis.MouseX){

     RotationX += Input.GetAxis ("Mouse X") * sensitivityX * Time.deltaTime;

         RotationX = ClampAngle (RotationX, minimumX, maximumX);
                     
         OriginalRotation = XQuaternion = Quaternion.AngleAxis (RotationX , Vector3.up);

          transform.localRotation = OriginalRotation * XQuaternion;

                     
         }
         if(RotationAxisRotationXY == RotationAxis.MouseY){
         
         RotationY -= Input.GetAxis ("Mouse Y") * sensitivityY * Time.deltaTime;

         RotationY = ClampAngle (RotationY, minimumY, maximumY);
                                 
         OriginalRotation = YQuaternion = Quaternion.AngleAxis (RotationY, Vector3.right);
         
         transform.localRotation = OriginalRotation * YQuaternion;
         
         }

     }
     
     

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

 }