ActionScript 2.0 :: On Clip Event Enter Frame?

I have two buttons and a light blue circle. When you press the second button from the left, it changes the variable name to "boxTwo".In the circle video clip I have a enterframe with a condition to say, if the name is "boxTwo" play an animation, but it doesn't work.

Button:

Code:

on(release){
var name = "boxTwo";
_root[name].gotoAndStop(12);
trace(name);
}

On the circle MC that contains the animation

Code:

onClipEvent(enterFrame){
trace(_root.name);
if(_root.name == "boxTwo"){
circle.gotoAndPlay("loop");
}
}