function tab_initialize_auxiliary_configuration() {
    ga_tracker.sendAppView('Auxiliary Configuration');
    
    $('#content').load("./tabs/auxiliary_configuration.html", function() {
        GUI.active_tab = 'auxiliary_configuration';

        send_message(MSP_codes.MSP_BOXNAMES, MSP_codes.MSP_BOXNAMES, false, function() {
            send_message(MSP_codes.MSP_BOX, MSP_codes.MSP_BOX, false, function() {
                // generate table from the supplied AUX names and AUX data
                for (var i = 0; i < AUX_CONFIG.length; i++) {
                    $('.boxes > tbody:last').append(
                        '<tr>' +
                            '<td class="name">' + AUX_CONFIG[i] + '</td>' +
                            box_check(AUX_CONFIG_values[i], 0) +
                            box_check(AUX_CONFIG_values[i], 1) +
                            box_check(AUX_CONFIG_values[i], 2) +
                            
                            box_check(AUX_CONFIG_values[i], 3) +
                            box_check(AUX_CONFIG_values[i], 4) +
                            box_check(AUX_CONFIG_values[i], 5) +

                            box_check(AUX_CONFIG_values[i], 6) +
                            box_check(AUX_CONFIG_values[i], 7) +
                            box_check(AUX_CONFIG_values[i], 8) +

                            box_check(AUX_CONFIG_values[i], 9) +
                            box_check(AUX_CONFIG_values[i], 10) +
                            box_check(AUX_CONFIG_values[i], 11) +            
                        '</tr>'
                    );
                }
                
                // UI Hooks            
                $('a.update').click(function() {
                    // catch the input changes
                    var main_needle = 0;
                    var needle = 0;
                    $('.boxes input').each(function() {
                        if ($(this).is(':checked')) {
                            AUX_CONFIG_values[main_needle] = bit_set(AUX_CONFIG_values[main_needle], needle);
                        } else {
                            AUX_CONFIG_values[main_needle] = bit_clear(AUX_CONFIG_values[main_needle], needle);
                        }
                        
                        needle++;
                        
                        if (needle >= 12) { // 4 aux * 3 checkboxes = 12 bits per line
                            main_needle++;
                            
                            needle = 0;
                        }
                    });
                    
                    // send over the data
                    var AUX_val_buffer_out = new Array();
                    
                    var needle = 0;
                    for (var i = 0; i < AUX_CONFIG_values.length; i++) {
                        AUX_val_buffer_out[needle++] = lowByte(AUX_CONFIG_values[i]);
                        AUX_val_buffer_out[needle++] = highByte(AUX_CONFIG_values[i]);
                    }
                    
                    send_message(MSP_codes.MSP_SET_BOX, AUX_val_buffer_out); 

                    // Save changes to EEPROM
                    send_message(MSP_codes.MSP_EEPROM_WRITE, MSP_codes.MSP_EEPROM_WRITE, false, function() {
                        GUI.log('EEPROM <span style="color: green">saved</span>');
                        
                        var element = $('a.update');
                        element.addClass('success');
                        
                        GUI.timeout_add('success_highlight', function() {
                            element.removeClass('success');
                        }, 2000);
                    });
                });

                // enable data pulling
                GUI.interval_add('aux_data_poll', function() {
                send_message(MSP_codes.MSP_STATUS, MSP_codes.MSP_STATUS);
                send_message(MSP_codes.MSP_RC, MSP_codes.MSP_RC, false, function() {
                    for (var i = 0; i < AUX_CONFIG.length; i++) {
                        if (bit_check(CONFIG.mode, i)) {
                            $('td.name').eq(i).addClass('on').removeClass('off'); 
                        } else {
                            $('td.name').eq(i).removeClass('on').removeClass('off');
                            
                            if (AUX_CONFIG_values[i] > 0) {
                                $('td.name').eq(i).addClass('off');
                            }
                        }
                    }
                    
                    box_highlight(RC.AUX1, 2);
                    box_highlight(RC.AUX2, 5);
                    box_highlight(RC.AUX3, 8);
                    box_highlight(RC.AUX4, 11);
                });
                }, 50, true);
            });
        });
    });
}

function box_check(num, pos) {
    if (bit_check(num, pos)) { // 1
        return '<td><input type="checkbox" checked="checked" /></td>';
    } else { // 0
        return '<td><input type="checkbox" /></td>';
    }
}

// val = channel value
// aux_num = position of corresponding aux channel in the html table
function box_highlight(val, aux_num) {
    var tr = $('table.boxes tr');
    var pos = 0; // < 1300
    
    if (val > 1300 && val < 1700) {
        pos = 1;
    } else if (val > 1700) {
        pos = 2;
    }

    $(':nth-child(' + aux_num + '), :nth-child(' + (aux_num + 1) + '), :nth-child(' + (aux_num + 2) + ')', tr).css('background-color', 'transparent');
    $('td:nth-child(' + (aux_num + pos) + ')', tr).css('background-color', 'orange');
}