google-plus-badge-gadget2.xml

<Module>
<ModulePrefs
  width="300"
  height="106"
  border="0"
  description="Add Google Plus Badge to your Google Site."
  author="Brett Hagman"
  author_email="bhagman@roguerobotics.com">
  <Require feature="dynamic-height"/>
</ModulePrefs>/>
<UserPref name="gplusID" display_name="Google+ ID" datatype="string" required="true"/>
<Content type="html">
<![CDATA[
<div id="GPlusBadge"></div>
<script type="text/javascript">
function modifyHead()
{
  var prefs = new gadgets.Prefs();
  var gplusID = prefs.getString('gplusID');
  document.getElementById('GPlusBadge').innerHTML = '<div class="g-person" data-href="https://plus.google.com/' + gplusID + '" data-layout="landscape" data-width="300"></div>';
  link = document.createElement('link');
  link.href = 'https://plus.google.com/' + gplusID;
  link.rel = 'publisher';
  document.getElementsByTagName('head')[0].appendChild(link);
  script = document.createElement('script');
  script.type = 'text/javascript';
  script.innerHTML = '(function(){var po = document.createElement("script");po.type = "text/javascript"; po.async = true;po.src = "https://apis.google.com/js/platform.js";var s = document.getElementsByTagName("script")[0];s.parentNode.insertBefore(po, s);})();';
  document.getElementsByTagName('head')[0].appendChild(script);
}
gadgets.util.registerOnLoadHandler(modifyHead);
</script>
]]>
</Content>
</Module>