<div class="btn-group pull-right" >
                      <button style="margin-left:7px" type="button" class="btn btn-default btn-warning btn-sm dropdown-toggle pull-right " data-toggle="dropdown">Reg. <span class="caret"></span></button>
                      <ul class="dropdown-menu scrollable-menu" role="menu" style="min-width:100px">
                          <li id="55"><div style="margin-left: 15px" class="checkbox"><label><input type="checkbox" value="">Registo 1</label></div></li>
                          <li id="116"><div style="margin-left: 15px" class="checkbox"><label><input type="checkbox" value="">Registo 2</label></div></li>
                      </ul>
                  </div>
                  <div class="btn-group pull-right" id="btnGroup" >
                    <button type="button" class="btn btn-default" onclick= "search()" ><i class="fa fa-search"></i></button>
                  </div>