How best to handle a start button and a play-pause toggle button?

Question

Hello,
Still new to AS3, on a project for a client. I'd appreciate advice on how best to handle the navigation for 5 movieclips set inside 5 separate frames on the main timeline. I have a play button on frame 1 to start the animation, but I'd like to include a play/pause toggle button on the other frames to finish the navigation. Everything works except the toggle button, when clicked, does toggle but does not stop the animation. I've copied the code, including the toggle button code on frame 4 below. How best to handle both a start button and a play-pause toggle button?
Thanks for any help in advance.
Frame 1:
PlayBtn_mc.buttonMode = true;
stop();
PlayBtn_mc.addEventListener(MouseEvent.CLICK,startMovie);
function startMovie(event:MouseEvent) {
gotoAndPlay(2);
Frame 2:
stop();
Frame 3:
stop();
Frame 4:
RewindBtn_mc.buttonMode = true;
RewindBtn_mc.addEventListener(MouseEvent.CLICK,rewind);
function rewind(e:MouseEvent) {
prevFrame();
FFBtn_mc.buttonMode = true;
FFBtn_mc.addEventListener(MouseEvent.CLICK,forward);
function forward(e:MouseEvent) {
nextFrame();
ToggleBtn_mc.buttonMode = true;
ToggleBtn_mc.addEventListener(MouseEvent.CLICK, doToggle);
function doToggle(myevent:MouseEvent):void {
ToggleBtn_mc.play();
Frame 5:
(Loops back to Frame 1)

Answer 1

I can't tell you how appreciative I am of all your assistance.
Could you double-check on this, I may have stumbled upon somthing- I tweaked your last code, which toggled, but didn't seem to call the scene_test_mc into action.
But I copied below what both toggles the play/pause button and calls the mc into action. Could you verify this as reliable code and not a fluke that will break? Thank you so much! :
ToggleBtn_mc.buttonMode = true;
ToggleBtn_mc.addEventListener(MouseEvent.CLICK, doToggle);
scene_test_mc.buttonMode=true;
scene_test_mc.addEventListener(MouseEvent.CLICK, doToggle);
function doToggle(myevent:MouseEvent):void {
var mc:MovieClip=MovieClip(myevent.currentTarget);
if(mc.currentFrame==1){
mc.gotoAndStop(2);
scene_test_mc.play();
} else {
mc.gotoAndStop(1);
scene_test_mc.stop();