Projects - Flex Builder - Registered Event Handler application

.mxml code:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application
xmlns:mx="http://www.adobe.com/2006/mxml"
horizontalAlign="centre" verticalAlign="middle"
width="300" height="200"
creationComplete="creationCompleteHandler(event);"
>

<mx:Script>
<![CDATA[
import flash.events.MouseEvent;
import mx.events.FlexEvent;

private function creationCompleteHandler(event:FlexEvent):void

{
// Listen for the click event on the Button control
myButton.addEventListener (MouseEvent.CLICK, clickHandler);
}

private function clickHandler ( event:Event ):void

{
myLabel.text = "Hello, World!";
}

]]>
</mx:Script>

<mx:Panel
title="My Application" horizontalAlign="center"
paddingTop="10" paddingBottom="10" paddingLeft="10" paddingRight="10"
>

<mx:Label id="myLabel" width="180" fontWeight="bold" fontSize="24"/>
<mx:Button id="myButton" label="Click Me!" />
</mx:Panel>
</mx:Application>

html code:
<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
id="registerEventHandler" width="300" height="200"
codebase="http://fpdownload.macromedia.com/get/flashplayer/current/swflash.cab">
<param name="movie" value="registerEventHandler.swf" />
<param name="quality" value="high" />
<param name="bgcolor" value="#869ca7" />
<param name="allowScriptAccess" value="sameDomain" /><embed src="registerEventHandler.swf" quality="high" bgcolor="#869ca7"
width="300" height="200" name="registerEventHandler" align="middle"
play="true"
loop="false"
quality="high"
allowScriptAccess="sameDomain"
type="application/x-shockwave-flash"
pluginspage="http://www.adobe.com/go/getflashplayer">
</embed> </object>