<?xml version="1.0" encoding="utf-8"?>
  <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
          
          <mx:Script>
                  <![CDATA[
                          import mx.controls.Alert;
                          
                          private function handleClickEvent(event:Event):void
                          {
                                  Alert.show(event.type + " event was fired");
                          }
                          
                  ]]>
          </mx:Script>
          
          <mx:Button label="Click" click="handleClickEvent(event)" />
          
  </mx:Application>