<?xml version="1.0" encoding="utf-8"?>
<mx:Application
  xmlns:mx="http://www.macromedia.com/2003/mxml"
  backgroundColor="#ffffff">
  <mx:Script>
    <![CDATA[
    function updateOutput() {
      output.text = "Hello! " + input.text;
    }
    ]]>
  </mx:Script>
  <mx:TextInput id="input" width="200"
    change="updateOutput()" />
  <mx:Label id="output" text="Hello!" />
</mx:Application>