CS5 AS3 MovieClip errors.

Question

I'm having an issue in scripting a MovieClip to play within a MovieClip. The outer MovieClip is a "Page" and on the page, you must click a button to play the second MovieClip, which is planned to remove the activating button, and play the MovieClip, stopping at the end, and presenting another button. I'm getting various error with different variations of the scripts.
Here is the code for my MovieClips:
package
           import flash.display.MovieClip;
           import flash.events.MouseEvent;
           public class Main extends MovieClip
                       var startPage:StartPage
                       var hillPage:HillPage;
                       var pondPage:PondPage;
                       var raft:Raft;
                       var sailPage:SailPage;
                       var raftButton:RaftButton;              
           public function Main()
                        startPage = new StartPage();
                        hillPage = new HillPage();
                        pondPage = new PondPage();
                        raft = new Raft();
                        sailPage = new SailPage();
                        addChild(startPage);
//add event listeners
startPage.hillButton.addEventListener(MouseEvent.CLICK,onHillButtonClick);
startPage.pondButton.addEventListener(MouseEvent.CLICK,onPondButtonClick);
hillPage.hillBack1.addEventListener(MouseEvent.CLICK,onBackButtonHillClick);
pondPage.pondBack1.addEventListener(MouseEvent.CLICK,onBackButtonHillClick);
pondPage.raftButton.addEventListener(MouseEvent.CLICK,onRaftButtonClick);
pondPage.exploreButtonRight.addEventListener(MouseEvent.CLICK,onExploreButtonRightClick);
pondPage.raftButton.addEventListener(MouseEvent.CLICK,playAnimation);
//add event handlers
function onHillButtonClick(event:MouseEvent):void
   addChild(hillPage);
   removeChild(startPage);
function onPondButtonClick(event:MouseEvent):void
   addChild(pondPage);
   removeChild(startPage);
function onBackButtonHillClick(event:MouseEvent):void
   addChild(startPage);
   removeChild(hillPage);
function onBackButtonPondClick(event:MouseEvent):void
   addChild(startPage);
   removeChild(pondPage);
function onRaftButtonClick(event:MouseEvent):void
   removeChild(raftButton);
   flash.display.MovieClip.raft(event:MouseEvent, playAnimation);
function playAnimation(event:MouseEvent):void
       raft.play();
function onExploreButtonRightClick(event:MouseEvent):void
   addChild(sailPage);
   removeChild(pondPage);
Any assistance is greatly appreciated. Thanks.

Answer 1

To play a movieclip within a movieclip you target the movieclip from the timeline you are in using dot notation, such as you possibly did when you assigned event listeners to your buttons.  You may have targeted the raftButton properly when you assigned its event listener...
pondPage.raftButton.addEventListener(MouseEvent.CLICK,playAnimation);
but if you did, then you did not target it properly when you tried to remove it...
removeChild(raftButton);
that should have been
removeChild(pondPage.raftButton);
(but that is only if the targeting was correct for the listener)