gistfile1.txt

  <script src="http://www.google.com/jsapi"></script>
    <script>
    google.load("jquery", "1.6.1");
    google.load("jqueryui", "1.8.6");
    </script>
    <script>
    $(
      $('#draggablehand').draggable({
        hoverClass: "dropHover"
      }))
    $(
    $('ul#icongroup>li').droppable({
      over: function(event, ui){
          var imgsrc = ($("img", this).attr('src'));
          $('#draggablehand').attr('src', imgsrc.replace('icon', 'hand'));
          $('.phonesketch').attr('src', imgsrc.replace('icon', 'sketch'));
        }
      }) 
    );
    </script>