example4.xul

<?xml version="1.0"?>
<?xml-stylesheet href="chrome://global/skin/global.css" type="text/css"?>
<dialog id="mydialog" title="Dialog Example"
   xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
   buttons="accept,cancel"
   buttonlabelcancel="Cancel"
   buttonlabelaccept="Send"
   ondialogaccept="alert('Thank you, ' + document.getElementById('name').value + '!');"
   ondialogcancel="alert('canceled!');">
    
    <dialogheader title="Hello!" description="Welcome to the my dialog!"/>
  <vbox>
    <label value="Please introduce yourself :)" />
    <hbox>
      <label value="Your Name:" control="name" accesskey="N" />
      <textbox id="name" value="" />
    </hbox>
  </vbox>

</dialog>