    <div class="panel panel-default">
                        <div class="panel-heading portlet-header">
                          <i class="fa fa-bar-chart-o fa-fw"> </i> <span type="button" class="dropdown-toggle click-title span-title" data-toggle="collapse" href="#bodyResponseTimeVsRequest" aria-expanded="true" aria-controls="bodyResponseTimeVsRequest">Response Time Vs Request</span>
                          <div class="pull-right">
                                <div class="btn-group">
              