<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2007/08/20/creating-toggle-and-emphasized-button-controls-in-flex/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">

    <mx:Number id="buttonWidth">200</mx:Number>

    <mx:Button id="button1"
            label="toggle = true; selected = {button1.selected}"
            toggle="true"
            width="{buttonWidth}" />

    <mx:Button id="button2"
            label="emphasized = true"
            emphasized="true"
            width="{buttonWidth}" />

</mx:Application>