move constant ball on a circle from rotating ball to avoid collision

[kadi]

http://jsfiddle.net/mF7H5/

here is the fiddle on what i am trying to do. i want to make one ball on the circle that is constant in position i.e., not spinning. the main aim is to escape constant ball(by assigning a button to jump) from the main ball. if the main ball which is rotating from my fiddle touches any of the constant ball then it should end. one point for each ball escape. i cant position a constant ball on the circle. here is an example of what i like 2 do.here is an example of what i like 2 do. http://www.lessmilk.com/9/