                                   <ul class="dropdown-menu dropdown-user">
                                        <li><a href="#transactionsPerSecond" onClick="checkAll('choicesTransactionsPerSecond');">Display all samples</a>
                                        </li>
                                        <li><a href="#transactionsPerSecond" onClick="uncheckAll('choicesTransactionsPerSecond');">Hide all samples</a>
                                        </li>
                                       