Where I have to edit for resizing the image

Hello
I am new to actionscript. I want smaller size of captured image via webcam but I am confused where I have to edit in the below code to change the captured image. Now the image size is is 320x240 I need the images of size 185x240 (wxh). Any help on this is welcome.
Here is the code -

package take_picture_fla
{
    import com.adobe.images.*;
    import flash.display.*;
    import flash.events.*;
    import flash.media.*;
    import flash.net.*;
    import flash.ui.*;
    import flash.utils.*;


    dynamic public class MainTimeline extends MovieClip
    {
        public var capture_mc:MovieClip;
        public var bitmap:Bitmap;
        public var rightClickMenu:ContextMenu;
        public var snd:Sound;
        public var video:Video;
        public var bitmapData:BitmapData;
        public var warn:MovieClip;
        public var save_mc:MovieClip;
        public var bandwidth:int;
        public var copyright:ContextMenuItem;
        public var cam:Camera;
        public var quality:int;


        public function MainTimeline()
        {
            addFrameScript(0, frame1);
            return;
        }// end function
        public function onSaveJPG(event:Event) : void
        {
            var myEncoder:JPGEncoder;
            var byteArray:ByteArray;
            var header:URLRequestHeader;
            var saveJPG:URLRequest;
            var urlLoader:URLLoader;
            var sendComplete:Function;
            var e:* = event;
            sendComplete = function (event:Event) : void
            {
                warn.visible = true;
                addChild(warn);
                warn.addEventListener(MouseEvent.MOUSE_DOWN, warnDown);
                warn.buttonMode = true;
                return;
            }// end function
            ;
            myEncoder = new JPGEncoder(100);
            byteArray = myEncoder.encode(bitmapData);
            header = new URLRequestHeader("Content-type", "application/octet-stream");
            saveJPG = new URLRequest("save.php");
            saveJPG.requestHeaders.push(header);
            saveJPG.method = URLRequestMethod.POST;
            saveJPG.data = byteArray;
            urlLoader = new URLLoader();
            urlLoader.addEventListener(Event.COMPLETE, sendComplete);
            urlLoader.load(saveJPG);
            return;
        }// end function
        public function warnDown(event:MouseEvent) : void
        {
            navigateToURL(new URLRequest("images/"), "_blank");
            warn.visible = false;
            return;
        }// end function
        function frame1()
        {
            stage.align = StageAlign.TOP_LEFT;
            stage.scaleMode = StageScaleMode.NO_SCALE;
            rightClickMenu = new ContextMenu();
            copyright = new ContextMenuItem("Developed By www.webinfopedia.com Go to Application");
            copyright.addEventListener(ContextMenuEvent.MENU_ITEM_SELECT, myLink);
            copyright.separatorBefore = false;
            rightClickMenu.hideBuiltInItems();
            rightClickMenu.customItems.push(copyright);
            this.contextMenu = rightClickMenu;
            snd = new camerasound();
            bandwidth = 0;
            quality = 100;
            cam = Camera.getCamera();
            cam.setQuality(bandwidth, quality);
            cam.setMode(320, 240, 30, false);
            video = new Video();
            video.attachCamera(cam);
            video.x = 20;
            video.y = 20;
            addChild(video);
            bitmapData = new BitmapData(video.width, video.height);
            bitmap = new Bitmap(bitmapData);
            bitmap.x = 360;
            bitmap.y = 20;
            addChild(bitmap);
            capture_mc.buttonMode = true;
            capture_mc.addEventListener(MouseEvent.CLICK, captureImage);
            save_mc.alpha = 0.5;
            warn.visible = false;
            return;
        }// end function
        public function captureImage(event:MouseEvent) : void
        {
            snd.play();
            bitmapData.draw(video);
            save_mc.buttonMode = true;
            save_mc.addEventListener(MouseEvent.CLICK, onSaveJPG);
            save_mc.alpha = 1;
            return;
        }// end function
        public function myLink(event:Event)
        {
            navigateToURL(new URLRequest("http://www.webinfopedia.com/export-database-data-to-excel-
in-php.html"), "_blank");
            return;
        }// end function


    }
}