movieclip vergrößern und auf originalgröße zurücksetzen

[stifflers mum]

hi leute,

ich arbeite hier mit folgendem script, um eine karte zu zoomen, per mausrad. ich möchte nun aber , sollte jemand zu weit herein- oder herausgezoomt haben, alles wieder auf null setzen. also die originalgröße der karte am anfang wiederherstellen. kann mir jemand uf die sprünge helfen? danke!

var originalWidth:Number;
var originalHeight:Number;
var originalXPosition:Number;
var originalYPosition:Number;
 
if (originalWidth == null) {
    StateMachinePart.setMask(Mask);
    originalWidth = StateMachinePart._width;
    originalHeight = StateMachinePart._height;
    originalXPosition = StateMachinePart._x;
    originalYPosition = StateMachinePart._y;
}
targetX = originalWidth/1;
targetY = originalHeight/1;
//targetW = originalWidth-50;
//targetH = originalHeight-50;
 
 
function zoomToState(stateX, stateY, stateH, stateW, mouseWheel) {
    if (!mouseWheel) {
        stateScale = targetW/stateW;
        if (stateScale*stateH>targetH) {
            stateScale = targetH/stateH;
        }
        mapX = targetX-(stateX*stateScale);
        mapY = targetY-(stateY*stateScale);
    } else {
        stateScale = originalWidth/stateW;
        if (stateScale*stateH>originalHeight) {
            stateScale = originalHeight/stateH;
        }
        mapX = originalXPosition-(stateX*stateScale);
        mapY = originalYPosition-(stateY*stateScale);
    }
    _root.onEnterFrame = function() {
        //StateMachinePart._x -= (StateMachinePart._x-mapX)/5;
        //StateMachinePart._y -= (StateMachinePart._y-mapY)/5;
        StateMachinePart._xscale -= (StateMachinePart._xscale-(stateScale*100))/5;
        StateMachinePart._yscale -= (StateMachinePart._yscale-(stateScale*100))/5;
        if (Math.abs(StateMachinePart._x-mapX)<.5 && Math.abs(StateMachinePart._y-mapY)<.5 && Math.abs
(StateMachinePart._xscale-(stateScale*100))<.5) {
            delete (_root.onEnterFrame);
        }
    };
}
 
 
var mouseListener:Object = new Object();
mouseListener.onMouseWheel = function(delta) {
    pt1 = {x:originalXPosition, y:originalYPosition};
    pt2 = {x:originalXPosition-originalWidth/2, y:originalYPosition-originalHeight/2};
    pt3 = {x:originalXPosition+originalWidth/2, y:originalYPosition+originalHeight/2};
    if (delta>0) {
        pt2.x += 0;
        pt3.x -= 260;
        pt2.y += 0;
        pt3.y -= 260;
    } else {
        pt2.x -= 0;
        pt3.x += 260;
        pt2.y -= 0;
        pt3.y += 260;
    }
    StateMachinePart.globalToLocal(pt1);
    StateMachinePart.globalToLocal(pt2);
    StateMachinePart.globalToLocal(pt3);
    _root.zoomToState(pt1.x,pt1.y,pt3.y-pt2.y,pt3.x-pt2.x,true);
};
Mouse.addListener(mouseListener);
 
_root.StateMachinePart.bezirke.autobahn._visible = 0;
_root.StateMachinePart.bezirke.bahn._visible = 0;
_root.StateMachinePart.bezirke.flug._visible = 0;
_root.StateMachinePart.bezirke.swkmovie._visible = 0;