title: adding rel tag/disable links in jsTree
body: <p>Am trying to add a rel tag to all rels that are empty for jsTree. I have managed to get this to work in jsFiddle, but when trying to apply the same code to the full tree, it does not work (that is, the rel tag still is blank/empty). I grabbed the resulting source code from my tree to use as this example, which is why am confused that the code is not working.</p>
  
  <p>Here is the working jsFiddle version: <a href="http://jsfiddle.net/FL9XG/" rel="nofollow">view here</a>. </p>
  
  <p>Also, would it be possible that if the rel='disabled', to remove or disable the a href so that the link is disabled?</p>