def handle_load_balancing(self, top):
        # deal with asset directories
        top.add(DivWdg('Load Balancing', css='spt_info_title'))
        table = Table()
        table.add_class("spt_loadbalance")
        table.add_color("color", "color")
        table.add_style("margin: 10px")
        top.add(table)
        table.add_row()
        td = table.add_cell("Load Balancing: ")
        td.add_style("width: 150px")

        button = ActionButtonWdg(title='Test')
        td = table.add_cell(button)
        message_div = DivWdg()
        message_div.add_class("spt_loadbalance_message")
        table.add_cell(message_div)
        button.add_behavior( {
        'type': 'click_up',
        'cbjs_action': '''
        var server = TacticServerStub.get()
        var ports = {};
        var count = 0;
        for (var i = 0; i < 50; i++) {
          var info = server.get_connection_info();
          var port = info.port;
          var num = ports[port];
          if (!num) {
            ports[port] = 1;
            count += 1;
          }
          else {
            ports[port] += 1;
          }
          // if there are 10 requests and still only one, then break
          if (i == 10 && count == 1)
            break;
        }


        // build the ports string
        x = [];
        for (i in ports) {
            x.push(i);
        }
        x.sort();
        x = x.join(", ");

        var loadbalance_el = bvr.src_el.getParent(".spt_loadbalance");
        var message_el = loadbalance_el.getElement(".spt_loadbalance_message");
        if (count > 1) {
            var message = "Yes (found " + count + " ports: "+x+")";
        }
        else {
            var message = "<blink style='background: red; padding: 3px'>Not enabled (found only port " + x + ")</blink>";
        }
        message_el.innerHTML = message
        '''
        } )