Flex 登陸框添加圖片

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 
			   xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600">
	<fx:Style>
		@namespace mx "library://ns.adobe.com/flex/mx";
		.textbox{background-position:left;}
	</fx:Style> 
	<fx:Declarations>
		<!-- 將非可視元素（例如服務、值對象）放在此處 -->
	</fx:Declarations>
	<mx:Canvas>
		<mx:TextInput id="username" borderStyle="solid" focusInEffect="fd3" 
					   paddingLeft="20" textAlign="left" />
		<mx:Image source="@Embed(source='MDI/assets/img/closeButton.png')" height="100%"/>
	</mx:Canvas>
</mx:Application>