Animate CC as3.0 [Mouse range] Problem

Animate CC as3.0 [Mouse range] Problem

//=============================

stage => (0,0,720,480)
wantRectangle => (200,420,380,480)

var r:Number = 100;
MovieClib.bar.addEventListener(MouseEvent.MOUSE_UP, prg);
MovieClib.bar.startDrag(true, new Rectangle(0, 0, r, 0));
stage.addEventListener(MouseEvent.MOUSE_UP, prg);

When I run this, other buttons outside the "wantRectangle" range cause problems
(Example, the problem of intermittent interruption when playing music, etc.)

Query how to execute "prg" on stage scope within wantRectangle scope

thank you