Haketilo

    <!--

	Put all objects under a <div> to make sure the Mutation Observer does

	indeed correctly report changes in subtrees (there are problems with

	this in XML documents).

      -->

    <div>

      <button id="clickme1"

	      onclick="window.__run = [...(window.__run || []), 'on'];"

	      blocked-onclick="some useful data">

	Click Meee!

      </button>

      <a id="clickme2"

	 href="javascript:window.__run = [...(window.__run || []), 'href'];void(0);">

	Click Meee!

      </a>

      <iframe src="javascript:void(window.parent.__run = [...(window.parent.__run || []), 'src']);">

      </iframe>

      <object data="javascript:window.__run = [...(window.__run || []), 'data'];">

      </object>

    </div>