Repostion contents on resize of browser window

1

attempting to reposition contents of swf on resize of browser window with tween class
as seen on http://www.rigsbydesign.com
or
http://www.dunwoodie-architectureanddesign.co.uk/main.php

Stage.align = “TL”;
Stage.scaleMode = “noScale”;
stageListener = new Object();
stageListener.onResize = function() {
moveIt();
};
Stage.addListener(stageListener);
moveIt = function () {
dash_mc.onEnterFrame = function() {
this._x += ((Stage.width/2)-this._x)/5;
this._y += ((Stage.height/2)-this._y)/5;
};
};