Move last child to first position

My HTML:

  <div id="my-slider">
    <img src="/slider/pic/bf3.jpg" alt="picture">
    <img src="/slider/pic/bf3_cq.jpg" alt="picture">
    <!-- etc -->
  </div>

On specific event I want to move last img tag to first position (according to parent)

I try:

    curr.css('left', 0);
    curr.prepend(curr.parent()); 

I can change css, but second line raising error:

HierarchyRequestError: Node cannot be inserted at the specified point in the hierarchy

Could someone give me any advice?