<?xml version="1.0"?>
<?xml-stylesheet href="chrome://global/skin" type="text/css"?>
<!DOCTYPE window>
<window title="Hello xFly"
  xmlns:html="http://www.w3.org/1999/xhtml"
  xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
  style="background-color: white;"
  width="300"
  height="215"
  onload="centerWindowOnScreen( )">
<script type="application/x-javascript"   
  src="chrome://global/content/dialogOverlay.js" />
<vbox align="left" nevow:data="random" nevow:render="clones">
  <label style="font-weight: bold;"
      value="Hello, Welcome to the xFly" />
  <button label="hello xFly" oncommand="alert('Hello World');" />
</vbox>
</window>