Как повесить тень на объект

[ShockWave512]

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 
	xmlns:s="library://ns.adobe.com/flex/spark" 
	xmlns:mx="library://ns.adobe.com/flex/halo" 
	minWidth="1024" minHeight="768"
	backgroundColor="#ffcc00"
	xmlns:flash="flash.filters.*">
	<mx:Button x="239" y="187" label="Кнопка">
	     <mx:filters>
                     <mx:DropShadowFilter 
                           distance="10" 
                           color="0x666666"
                           alpha=".8"/>
                </mx:filters>
	</mx:Button>
</s:Application>