Setting the hit area of my Carousel?

programming flash
1

I have been following gotoAndLean’s video tutorials on how to make a carousel and I have got it all working but the way it is set up no matter where the mouse is on the page it will rotate that direction. So I am wanting to apply a hit area(I think that would be the best thing to do) to the carousel so that it only rotates when the mouse is in that area.
this is the code as is. I would put up a fla but my server is down atm sorry.

import mx.utils.Delegate;
import mx.transitions.Tween;
import mx.transitions.easing.*;

var numOfItems:Number;
var radiusX:Number = 200;
var radiusY:Number = 45;
var centerX:Number = Stage.width / 2;
var centerY:Number = Stage.height / 1;
var speed:Number = 0.05;
var perspective:Number = 230;
var home:MovieClip = this;
theText._alpha = 0;

var tooltip:MovieClip = this.attachMovie("tooltip","tooltip",10000);
tooltip._alpha = 0;

var xml:XML = new XML();
xml.ignoreWhite = true;

xml.onLoad = function()
{
    var nodes = this.firstChild.childNodes;
    numOfItems = nodes.length;
    for(var i=0;i<numOfItems;i++)
    {
        var t = home.attachMovie("item","item"+i,i+1);
        t.angle = i * ((Math.PI*2)/numOfItems);
        t.onEnterFrame = mover;
        t.toolText = nodes*.attributes.tooltip;
        t.content = nodes*.attributes.content;
        t.icon.inner.loadMovie(nodes*.attributes.image);
        t.r.inner.loadMovie(nodes*.attributes.image);
        t.icon.onRollOver = over;
        t.icon.onRollOut = out;
        t.icon.onRelease = released;
    }
}

function over()
{
    //BONUS Section
    var sou:Sound = new Sound();
    sou.attachSound("sover");
    sou.start();
    
    home.tooltip.tipText.text = this._parent.toolText;
    home.tooltip._x = this._parent._x;
    home.tooltip._y = this._parent._y - this._parent._height/2;
    home.tooltip.onEnterFrame = Delegate.create(this,moveTip);
    home.tooltip._alpha = 100;
}

function out()
{
    delete home.tooltip.onEnterFrame;
    home.tooltip._alpha = 0;
}

function released()
{
    //BONUS Section
    var sou:Sound = new Sound();
    sou.attachSound("sdown");
    sou.start();
    
    home.tooltip._alpha = 0;
    for(var i=0;i<numOfItems;i++)
    {
        var t:MovieClip = home["item"+i];
        t.xPos = t._x;
        t.yPos = t._y;
        t.theScale = t._xscale;
        delete t.icon.onRollOver;
        delete t.icon.onRollOut;
        delete t.icon.onRelease;
        delete t.onEnterFrame;
        if(t != this._parent)
        {
            var tw:Tween = new Tween(t,"_xscale",Strong.easeOut,t._xscale,0,1,true);
            var tw2:Tween = new Tween(t,"_yscale",Strong.easeOut,t._yscale,0,1,true);
            var tw3:Tween = new Tween(t,"_alpha",Strong.easeOut,100,0,1,true);
        }
        else
        {
            var tw:Tween = new Tween(t,"_xscale",Strong.easeOut,t._xscale,100,1,true);
            var tw2:Tween = new Tween(t,"_yscale",Strong.easeOut,t._yscale,100,1,true);
            var tw3:Tween = new Tween(t,"_x",Strong.easeOut,t._x,200,1,true);
            var tw4:Tween = new Tween(t,"_y",Strong.easeOut,t._y,320,1,true);
            var tw5:Tween = new Tween(theText,"_alpha",Strong.easeOut,0,100,1,true);
            theText.text = t.content;
            var s:Object = this;
            tw.onMotionStopped = function()
            {
                s.onRelease = unReleased;
            }
        }
    }
}

function unReleased()
{
    //BONUS Section
    var sou:Sound = new Sound();
    sou.attachSound("sdown");
    sou.start();
    
    delete this.onRelease;
    var tw:Tween = new Tween(theText,"_alpha",Strong.easeOut,100,0,0.5,true);
    for(var i=0;i<numOfItems;i++)
    {
        var t:MovieClip = home["item"+i];
        if(t != this._parent)
        {
            var tw:Tween = new Tween(t,"_xscale",Strong.easeOut,0,t.theScale,1,true);
            var tw2:Tween = new Tween(t,"_yscale",Strong.easeOut,0,t.theScale,1,true);
            var tw3:Tween = new Tween(t,"_alpha",Strong.easeOut,0,100,1,true);
        }
        else
        {
            var tw:Tween = new Tween(t,"_xscale",Strong.easeOut,100,t.theScale,1,true);
            var tw2:Tween = new Tween(t,"_yscale",Strong.easeOut,100,t.theScale,1,true);
            var tw3:Tween = new Tween(t,"_x",Strong.easeOut,t._x,t.xPos,1,true);
            var tw4:Tween = new Tween(t,"_y",Strong.easeOut,t._y,t.yPos,1,true);
            tw.onMotionStopped = function()
            {
                for(var i=0;i<numOfItems;i++)
                {
                    var t:MovieClip = home["item"+i];
                    t.icon.onRollOver = Delegate.create(t.icon,over);
                    t.icon.onRollOut = Delegate.create(t.icon,out);
                    t.icon.onRelease = Delegate.create(t.icon,released);
                    t.onEnterFrame = mover;
                }
            }
        }
    }
}


function moveTip()
{
    home.tooltip._x = this._parent._x;
    home.tooltip._y = this._parent._y - this._parent._height/2;
}

xml.load("icons.xml");

function mover()
{
    this._x = Math.cos(this.angle) * radiusX + centerX;
    this._y = Math.sin(this.angle) * radiusY + centerY;
    var s = (this._y - perspective) /(centerY+radiusY-perspective);
    this._xscale = this._yscale = s*100;
    this.angle += this._parent.speed;
    this.swapDepths(Math.round(this._xscale) + 100);
}

this.onMouseMove = function()
{
    speed = (this._xmouse-centerX)/2500;
}

would really appriciate the help I dont really know Actionscript so I know what I am wanting to do I just dont know how to do it so if someone could explain quite clearly that would be great that way I can learn.
cheers