title: jQuery add CSS attribute without markup
body: <p>I have a site that produces markup on the fly(Wordpress3.5) so I can't directly add data-tooltip to the html. Therefore I am trying to add the attribute via Javascript. In the provided fiddle I added some example HTML, can someone please help with this <a href="http://jsfiddle.net/fkdh8/" rel="nofollow">fiddle</a> in trying to successfully add 'tooltip' to the markup or explain why my script is currently not working? Thanks.</p>
  
  <pre><code>// set the tooltip content
  jQuery('li#menu-item-75 a:hover:before').prop('tooltipText', 'w00t');
  jQuery('li#menu-item-75 a:hover:after').prop('tooltipText', 'w00t');
  </code></pre>