dragStop

    
 <div id="dialog" style="display: none">Lorem ipsum dolor sit amet, consectetur adipiscing elit...</div>
 <div id="logPanel" class="col-xs-12 well pre-scrollable" style="height: 200px"></div>
 <script>
     var log = $('#logPanel');
     $("#dialog").dialog({
         drag: function (e) {
             log.append('<div class="row">The drag event is fired.</div>');
         },
         dragStart: function (e) {
             log.append('<div class="row">The dragStart event is fired.</div>');
         },
         dragStop: function (e) {
             log.append('<div class="row">The dragStop event is fired.</div>');
         }
     });
 </script>