<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2007/10/22/programmatically-removing-an-alert-using-the-popupmanager/ -->
<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.controls.Alert;
			import mx.managers.PopUpManager;

			private var alert:Alert;
			
			private function showAndHide(delay:Number):void {
				var alertText:String = "I'm an Alert control. I'll disappear in " + (delay / 1000).toFixed(1) + " seconds.";
				var alertTitle:String = "Timed Alert";
				alert = Alert.show(alertText, alertTitle);
				setTimeout(hideAlert, delay);
			}
			
			private function hideAlert():void {
				PopUpManager.removePopUp(alert);
			}
		]]>
	</mx:Script>
	
	<mx:ApplicationControlBar dock="true">
		<mx:Button label="Launch alert"
				click="showAndHide(3000);" />
	</mx:ApplicationControlBar>

</mx:Application>