I need to reset, clear or deselect a group of radio buttons

Question

I haven't been able to find the answer to this: I have a quiz-like animation that uses a group of radio buttons, I need the group to reset, clear or deselect the previous selection after submitting the answer on each question, is that possible?
Here is the code:
stop();
var messageBox:TextField = new TextField();
messageBox.text = "";
addChild(messageBox);
messageBox.textColor = 0xFF0000;
messageBox.width = 200;
messageBox.height =100;
messageBox.x = 450;
messageBox.y = 340;
var userAnswer:int;
var rbg:Object = rbA.group;
var finalScore:int;
btnCheck.addEventListener(MouseEvent.CLICK, nextBtn);
function nextBtn(evt:MouseEvent):void {
userAnswer = int(rbg.selectedData);
            if(userAnswer == 0) {messageBox.text = "PLEASE SELECT AN OPTION";
}else{
finalScore = finalScore + userAnswer;
messageBox.text = "";
nextFrame();
btnFinish.addEventListener(MouseEvent.CLICK, finishBtn);
function finishBtn (evt:MouseEvent):void {
userAnswer = int(rbg.selectedData);
if(userAnswer == 0) {messageBox.text = "PLEASE SELECT AN OPTION";
}else{
finalScore = finalScore + userAnswer;
if (finalScore > 13){ gotoAndStop(8);
}else if (finalScore > 9){ gotoAndStop(7);
}else if (finalScore > 4){ gotoAndStop(6);
}else {}
startOver.addEventListener(MouseEvent.CLICK, reStart);
function reStart(evt:MouseEvent):void {
gotoAndStop(1);
finalScore = 0;

Answer 1

I'm all ears on this one because I checked into this the first time I saw this posting back whenever and couldn't find the solution.  And now I built something that tries to make it happen, and it doesn't.  In the AS3 help docs it doesn't say gets or sets, whereas in the AS2 docs it goes on about doing such things with that property... so maybe they changed the compnent for AS3?
Here's what I concocted building off a help docs example.  rb3 and rb4 are basically there just to reset rb1 and rb2:
import fl.controls.RadioButton;
import fl.controls.RadioButtonGroup;
var rbg1:RadioButtonGroup = new RadioButtonGroup("group1");
var rbg2:RadioButtonGroup = new RadioButtonGroup("group2");
var rb1:RadioButton = new RadioButton();
var rb2:RadioButton = new RadioButton();
var rb3:RadioButton = new RadioButton();
var rb4:RadioButton = new RadioButton();
rb1.group = rbg1;
rb2.group = rbg1;
rb3.group = rbg2;
rb4.group = rbg2;
rb1.move(10,10);
rb2.move(10,50);
rb3.move(150,10);
rb4.move(150,50);
addChild(rb1);
addChild(rb2);
addChild(rb3);
addChild(rb4);
function resetGroup1(evt:MouseEvent){
rbg1.selection.selected = false;
rb1.selected = false;
rb2.selected = false;
rb3.addEventListener(MouseEvent.CLICK, resetGroup1);
rb4.addEventListener(MouseEvent.CLICK, resetGroup1);
I rarely use radio buttons components.  If I need them, I usually create my own using movieclips.  If you go this route then you'll be able to decide what they can do, you just need to create the functions for controlling their behavior as a group..