Full flash resize only width

hey guys.

I been using a fullscreen resizable script for some time, works great for fullscreen flashes 100%height and 100%width.

Now i would like to have an image to only resizing 100% to the browser width
but have its height as it is, and of course without distorting the image.

the code im using is the below

Stage.align = “TL”;
Stage.scaleMode = “noScale”;

picHeight = new Object ();
picHeight = gallery._height / gallery._width;

picWidth = new Object ();
picWidth = gallery._width / gallery._height;

if ((Stage.height / Stage.width) < picHeight) {
gallery._width = Stage.width;
gallery._height = picHeight *gallery._width;
} else {
gallery._height = Stage.height;
gallery._width = picWidth * gallery._height;
};

gallery._x = (Stage.width / 2) - (gallery.width / 2);
gallery._y = (Stage.height / 2) - (gallery._height / 2);

sizeListener = new Object();

sizeListener.onResize = function() {

if ((Stage.height / Stage.width) &lt; picHeight) {

gallery._width = Stage.width;
gallery._height = picHeight * gallery._width;
} else {
gallery._height = Stage.height;
gallery._width = picWidth * gallery._height;
};    

gallery._x = (Stage.width / 2) - (gallery.width / 2);
gallery._y = (Stage.height / 2) - (gallery._height / 2);

}

Stage.addListener(sizeListener);

i tried to modify the script but without luck, is it any possibility at all to do this, or i need to use another code then above:nose: