 <div class="menu_bar_single">
    <div id="horizontal_menu" class="horizontal_menu">
        <div onclick="subMenuLoadContent('diagnostics_serviceoverview','1','Diagnostics - Service overview',loadServiceOverview);" id="diagnostics_serviceoverview" class="horizontal_menu_item">Service overview</div>
        <div onclick="subMenuLoadContent('diagnostics_tracefiles','2','Diagnostics - Trace Files',loadTraceFile);" id="diagnostics_tracefiles" class="horizontal_menu_item">Tracefiles</div>
    </div>
</div>