Help making a character fall below surface...

Question

I have a game I'm making and have been programming for awhile that I just recently got back to, and am need of assitance trying to make the main character fall and spawn to a previous location when he falls of the main platform/surface which he is continuously running on. This is a new endeavor for me and perhaps I'm just overly tired today, but I can't wrack my brain around it, any assistance is greatly appreciated.
My current code for the jump function in scene, and starting code for fall animation(with "wally" being the mc character, for reference), plus the Array I'm trying to reference:
var iceiceArray = new Array(ice1,
ice2,
ice3,
ice4,
ice5,
ice42);
ice1.addEventListener(Event.ENTER_FRAME, villainsLeft2);
function villainsLeft2(event:Event)
          for (var i:Number=0; i<iceiceArray.length; i++)
                    iceiceArray[i].x -=  15;
//jump function
var grav:Number = 10;
var jumping:Boolean = false;
var jumpPow:Number = 0;
stage.addEventListener(KeyboardEvent.KEY_DOWN, onKeyDown);
stage.addEventListener(Event.ENTER_FRAME, update);
function onKeyDown(evt:KeyboardEvent):void
    if(evt.keyCode == Keyboard.UP)
        if(jumping != true)
            jumpPow = -50;
            jumping = true;
wally2.startY = wally2.y;
function update(evt:Event):void
    if(jumping)
        wally2.y += jumpPow;
        jumpPow += grav;
        if(wally2.y >= wally2.startY)
            jumping = false;
            wally2.y = wally2.startY;;
//falling function
if (!wally2.hitTestObject(iceiceArray)) {
          wally2.y -=15;

Answer 1

your syntax is wrong.
Think about it: a Logical statement is evaluated this way:
if(true){
    doTrueStuff();
}else if (false){
   doFalseStuff()
in your case:
wally2.hitTestObject(iceiceArray[i]) is first evaluated (befroe the negation), so if you actually hit, say the iceplatform nr.7 it evaluates to TRUE
then you are negating the TRUE (!TRUE=FALSE), making it FALSE (so the condition does not enter your subroutine)
then instead of leving the for loop with a return (because after checking that your player hits one of the platforms checking the rest is not necessary)
you simply continue the loop, thus "overriding" anything you previously evaluated in it.
you should write
          for (var i:Number=0; i<iceiceArray.length; i++)
          // if you don't hit platform...
          if (wally2.hitTestObject(iceiceArray[i])) {
        //give the backbouncing a little more space, othewise (if your platform is not pixelperfect placed, you might nit get out of the collision zone with one collision detection)
          wally2.y += 5;
          return;