flex中怎么实现鼠标样式用图片代替，

<?xml version="1.0" encoding="utf-8"?>
<mx:Application 
    xmlns:mx="http://www.adobe.com/2006/mxml"
        width="100%" height="100%"
>
    <mx:Script>
        <![CDATA[
            import mx.controls.Button;
            import mx.managers.CursorManager;
            import flash.events.*;

            // 换成你想要的图片
            [Embed(source="assets/hourglass.swf")]
            public var HourGlassAnimation:Class;

            private function mouseOverHandler(event:MouseEvent):void 
            {
                CursorManager.setCursor(HourGlassAnimation);
            }
            private function mouseOutHandler(event:MouseEvent):void 
            {
                CursorManager.removeCursor( CursorManager.currentCursorID );
            }
        ]]>
    </mx:Script>

    <mx:Panel 
        paddingBottom="10" paddingTop="10" paddingLeft="10" paddingRight="10" 
        horizontalAlign="center" verticalAlign="middle" width="200" height="200"
        mouseOver="mouseOverHandler(event)" mouseOut="mouseOutHandler(event)"
        title="Custom cursor">        
        
    </mx:Panel>
</mx:Application>

------解决方案--------------------

XML code

  [Bindable]
[Embed(source="img/157.jpg")]
public var cur:Class;
private function initCursor(event:Event){
    CursorManager.setCursor(cur);
}