title: Jquery UI sortable, highlight selected or dragged box
body: <p>I am creating list of boxes to be drag around and sort. I need the selected box to be highlighted with different color than original. Following codes make other items semi transparent.</p>
  
  <pre><code>$("#sortable").sortable({ 
      axis: "y", 
      cursor: "move",
      change: function (event, ui) {}, //save the sort
      start: function (event, ui) {
          $("#sortable").css("opacity", "0.6");                                
      },
      stop: function (event, ui {
          $("#sortable").css("opacity", "1.0"); 
       }
  });
  </code></pre>