title: How can I create an image tooltip hover over form labels with jQuery?
body: <p>How can I put an image tooltip on the label of all radio buttons within a form?  I am using simple_form to generate the form markup, so each label has a for attribute (e.g. <code>for="reward_id_79"</code>) that I could use to link the label with its corresponding image <code>img src='blah.jpg' id='reward_id_79'</code>.    </p>
  
  <p>Each radio input will have an associated image that I'd like to display in a tooltip popup with the user hovers over the label text.  I'd like not to alter the simple_form output, but instead have a series of hidden images elsewhere in the page.</p>