Make three MovieClips appear and disappear inside a snowglobe when shaken - actionscript-3

Question

I used a creative cow tutorial to create my own snow globe that moves and snow reactivates - it really is a great tutorial.
What I'm trying to do is Change between 3 Movie clips in the ActionScript - But each time I add my movie clip names - Or try and add a simple visibility code I break my snow globe actions.
I have my MovieClip instances named friendsSceneThree, BuddiesSceneTwo and HatsOffSceneOne. I would think they'd be good but somewhere I'm missing something. Right now I can't get the code to even SEE The movieclips I'm getting a simple:
TypeError: Error #1006: value is not a function.at SnowGlobeContainer/update()
Down in the 'if drag' Update is where I'd like to Change from One MClip to the Next.
What Am I Not Seeing?!?! Any help would be greatly appreciated! Thanks
Here is the ActionScript:
package {
import flash.display.MovieClip;
import flash.display.Sprite;
import flash.events.Event;
import flash.events.MouseEvent;
import flash.geom.Rectangle;
import flash.geom.Point;
public class SnowGlobeContainer extends Sprite {
public var snowForeground:SnowGeneratorCircle;
public var snowBackground:SnowGeneratorCircle;
public var friendsSceneThree:MovieClip;
public var buddiesSceneTwo:MovieClip;
public var hatsOffSceneOne:MovieClip;
public var drag:Boolean = false;
public var over:Boolean = false;
public var startPos:Point = new Point;
public var mouseDownOffset:Point = new Point;
public var bounds:Rectangle = new Rectangle;
public var vel:Point = new Point(0,0);
public var pos:Point = new Point(x,y);
public var old:Point = new Point(x,y);
public var gravity:Number = 5+(Math.random()*1);
public var restitution:Number = 0.5;
public var friction:Number = 0.9;
public function SnowGlobeContainer() {
// save some initial persistant properties
startPos.x = this.x;
startPos.y = this.y;
old.x = this.x;
old.y = this.y;
bounds.x = 0;
bounds.y = 0;
bounds.width = 600;
bounds.height = startPos.y;
// add mouse interaction listeners and show the cursor on rollover
this.mouseChildren = false;
this.useHandCursor = true;
this.buttonMode = true;
this.addEventListener(MouseEvent.MOUSE_DOWN, onMouseDown);
this.addEventListener(MouseEvent.MOUSE_UP, onMouseUp);
this.addEventListener(Event.ENTER_FRAME, update);
}
protected function onMouseOver(e:MouseEvent=null):void { over = true; }
protected function onMouseOut(e:MouseEvent=null):void { over = false; }
protected function onMouseDown(e:MouseEvent=null):void {
// Save the offset of your mouse when you first start dragging. Same functionality as startDrag(false)
mouseDownOffset.x = mouseX;
mouseDownOffset.y = mouseY;
drag = true;
}
protected function onMouseUp(e:MouseEvent=null):void {
vel.x = vel.y = 0;
pos.x = x;
pos.y = y;
drag = false;
}
public function update(e:Event):void {
// this if/else statement controls the mouse over and out instead of using event listeners
if(mouseY < -175 || mouseY > 175 || mouseX < -175 || mouseX > 175){
if(over) onMouseOut();
}else{
if(!over) onMouseOver();
}
if(drag){
// drag around..
this.x = parent.mouseX - mouseDownOffset.x;
this.y = parent.mouseY - mouseDownOffset.y;
// keep this thing on the table :)
if(y >= bounds.height) y = bounds.height;
// if you "shake" or move the mouse quickly, we are going to reset the snow particles
var d:Point = new Point(Math.abs(old.x - x), Math.abs(old.y - y));
if(d.x > 50 || d.y > 50 ){
snowForeground.reset();
snowBackground.reset();
friendsSceneThree.visible = false;
}
// update the history position
old.x = x;
old.y = y;
vel.y = (y-old.y)/2;
}else{
// if you drop this object it should have a bit of realistic falling..
vel.y += gravity;
pos.y += vel.y;
// bounce
if(pos.y > bounds.height){
pos.y = bounds.height;
vel.y *= -(Math.random()*restitution);
}
y = pos.y;
}
}
}
}
I appreciate the help -- If you haven't noticed I'm new to all of this scripting. I'm looking in on lynda.com and other forums. the SnowGeneratorCircle.as is:
package {
import flash.display.Sprite;
import flash.events.Event;
public class SnowGeneratorCircle extends Sprite {
var totalFlakes:int = 500;
var flakes:Array = new Array();
public function SnowGeneratorCircle() {
addSnowFlakes();
addEventListener(Event.ENTER_FRAME, update);
}
protected function addSnowFlakes():void{
for(var i:int=0; i<totalFlakes; i++){
var f:SnowFlake = new SnowFlake();
addChild(f);
flakes.push(f);
}
}
public function reset():void{
for(var i:int=0; i<totalFlakes; i++){
var f:SnowFlake = flakes[i];
f.reset();
}
}
public function update(e:Event=null):void {
for(var i:int=0; i<totalFlakes; i++){
var f:SnowFlake = flakes[i];
f.update(0);
}
}
}
}
I debugged - didn't clean up the code, because every time I did - it broke the actions. So I left the code with the double spacing. That's how it went in when I copied and pasted from the tutorial anyway.
Here's the error on line 173 - which is the MovieClip I'd like to have change.
Attempting to launch and connect to Player using URL /Volumes/Lacie Biggest S2S/GRaid/Veronica
/V/Rubio/Work/SUBARU/SnowGlobe Subaru/SnowGlobeAnima/snowGlobeShakev3.swf
[SWF] Volumes:Lacie Biggest S2S:GRaid:Veronica:V:Rubio:Work:SUBARU:SnowGlobe >Subaru:SnowGlobeAnima:snowGlobeShakev3.swf - 468081 bytes after decompression
TypeError: Error #1006: value is not a function.
at SnowGlobeContainer/update()[/Volumes/Lacie Biggest S2S/GRaid/Veronica/V/Rubio/Work/SUBARU
/SnowGlobe Subaru/SnowGlobeAnima/SnowGlobeContainer.as:173]
I just don't know how to get the actionscript to find my MovieClips and then swap them out wt each shake of the globe.