onEnterFrame?

1

Really simple, I know, but how can I get this onEnterFrame to work.

curr_scholars.scroller.down_arrow.onMouseDown = function() {
            this.onEnterFrame = function() {
                curr_scholars.scholars_data._y -=2;
            }
        }
        curr_scholars.scroller.down_arrow.onMouseUp = function() {
            delete this.onEnterFrame();
        }

The first part works - the onMouseDown. However, the onMouseUp doesn’t work - what am I doing wrong?