Toggle UI 4.6

So I have a toggle and I want it to work with this code.

note this isnt the whole of the code

 public bool invertY = false;
 
 void Update ()
     {
 
         if (axes == RotationAxes.MouseXAndY)
         {
             float rotationX = transform.localEulerAngles.y + Input.GetAxis("Mouse X") * sensitivityX;
             
             rotationY += Input.GetAxis("Mouse Y") * sensitivityY * (invertY ? -1 : 1);

how would I put this into my toggle so when it is checked, the mouse will invert the y axis?

http://gyazo.com/44f6611453affefb5c4118bf334535ff