<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2007/08/25/using-the-zipcodevalidator-class-to-validate-us-or-canadian-zip-codes/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
		layout="vertical" 
		verticalAlign="middle" 
		backgroundColor="white" viewSourceURL="srcview/index.html">

	<mx:Script>
		<![CDATA[
			import mx.validators.ZipCodeValidatorDomainType;
		]]>
	</mx:Script>

	<mx:ZipCodeValidator id="zipCodeValidator"
			source="{zipCode}"
			domain="{ZipCodeValidatorDomainType.US_OR_CANADA}"
			property="text" 
			trigger="{button}" 
			triggerEvent="click" />

	<mx:Form>
		<mx:FormHeading label="Enter shipping zip code" />
		<mx:FormItem label="Zip code:">
			<mx:TextInput id="zipCode" maxChars="10" />
		</mx:FormItem>
		<mx:FormItem>
			<mx:Button id="button" label="Validate" />
		</mx:FormItem>
	</mx:Form>

</mx:Application>