body

  <body>
  see http://www.webreference.com/programming/javascript/w_b/index.html
  >
  <div id="AnIdentification">
  <p>
  Hi, I am text that will be replaced.
  </p>
  </div>
  <a href="javascript:ReplaceElementID('lib-ajax-example-one.htm','AnIdentification')">
  Click to see it in action.
  </a>
  Alternatively, click 
  <a href="javascript:ReplaceElementID('lib-ajax-example-two.htm','AnIdentification')">
  two
  </a>
  <p>