Add a filter flip button to show/hide the filters

Author: connortechnology

web/skins/classic/views/events.php

@@ -97,6 +97,7 @@
               <button id="refreshBtn" class="btn btn-normal" data-toggle="tooltip" data-placement="top" title="<?php echo translate('Refresh') ?>" ><i class="fa fa-refresh"></i></button>
               <button id="tlineBtn" class="btn btn-normal" data-toggle="tooltip" data-placement="top" title="<?php echo translate('ShowTimeline') ?>" ><i class="fa fa-history"></i></button>
               <button id="filterBtn" class="btn btn-normal" data-toggle="tooltip" data-placement="top" title="<?php echo translate('Filter') ?>"><i class="fa fa-filter"></i></button>
+        <a class="btn" href="#" data-flip-сontrol-object="#fieldsTable"><i id="fbflip" class="material-icons" data-icon-visible="filter_alt_off" data-icon-hidden="filter_alt"></i></a>
             </div>
           </div> <!-- .col-sm-1-->
           <div class="col-sm-9">
@@ -107,6 +108,7 @@
       echo $filter->widget();
     }
   ?>
+
           </div> <!-- .col-sm-9-->
           <div class="col-sm-2">
             <div id="rightButtons" class="buttons">