flex中怎么实现鼠标样式用图片代替，

flex中如何实现鼠标样式用图片代替，急急急！！！
请教大家，在指定的区域中，让鼠标以其它的图片代替怎么实现，最好有代码，谢谢！

[解决办法]
代码如下：

XML code

<?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>
[解决办法]
XML code
  [Bindable][Embed(source="img/157.jpg")]public var cur:Class;private function initCursor(event:Event){    CursorManager.setCursor(cur);}