title: jQuery - hasClass on html tag
body: <p><code>$(html).hasClass("class")</code>, <code>$(document).hasClass("class")</code>, <code>$(document.html).hasClass("class")</code>
  None works. What selector should I use to get the class of the  tag ?
  Also, how can I find a list of standard elements which I can select in jQuery ?</p>