Ball, globe rotation based on mouse position

Hello all,

I have created a globe that rotates with no problem, but what I am trying to do is to control the direction of the rotation based on the mouse position.

For example, if the mouse is to the right of the globe, it rotates towards the right and if the mouse in on the left, the globe rotates left. When the mouse is over the globe, it should stop.

I appreciate any help that you could offer.

Thanks!
Keith