var parts = new DynamicOptionList();
        parts.addDependentFields("Category1", "Parts1");

        parts.forValue("swim2000").addOptions("SWIM 2000 - Timing System for Swimming",
                                                  "ALGE Swim 2000 Touchpad",
                                                 "Display Boards for Swimming");
                
        parts.forValue("timers").addOptions("TdC 8001 - TdC 8001 Timing Computer",
                                                        "TIMY-PXE - Timy Handheld Timing Computer",
                                                        "Timer S4 - S4 Timer");
       
        parts.forValue("photo").addOptions("OPTI - PC Based Digital Video  Photo Finish System",
                                                        "RLS1n - Photocell set, Reflector type, to 25 meters",
                                                        "RLS1nd - Photocell set, Transmitter/Receiver type, to 150 meters",
                                                        "RLS3C - Photocell Set, 3 Element Type for Athletics",
                                                        "SM8 - Startmicrophone with pistol fastening",
                                                        "Ref-n - Photocell Reflector",
                                                        "BBG - Replacement Mounting Brackets for photocells");
 
        parts.forValue("display").addOptions("GAZ4 - 5/6 Digit Display",
                                                        "Multisport Score Boards - Multisport Score Boards",
                                                        "Other Display Boards - Other Display Boards",
                                                        "D-LINE Display - D-LINE LED Numeric Display board",
                                                        "D-DID Display - LED Programmable Text Matrix Display");

        parts.forValue("start").addOptions("STSnM1S - Manual Loaded Start Gate, with Audio, 1 Contact",
                                                        "STSnA1S - Spring Loaded Start Gate, with Audio, 1 Contact",
                                                        "STSnM2S - Maunual Loaded Start Gate, with Audio, 2 Contacts",
                                                        "STSnA2S - Spring Loaded Start Gate, with Audio, 2 Contacts",
                                                        "STSn-S - Replacement Graphite Start Wand",
                                                        "STS3/c - Replacement Graphite Start Wand for older STSc Start Gate",
                                                        "STB! - Startbeep Device - Audiable warning for starts",
                                                        "ASC1-PP - Startclock with power supply");


        parts.forValue("voice").addOptions("Q34 - Headset with 2 Ear Pieces and Microphone",
                                                        "Q34/5 - Headset w/2 Ear Pieces and Microphone - Starter Headset/Long cable",
                                                        "HS-1/D - Headset with a single ear piece and microphone",
                                                        "SV4-S - Speech Ampifier with Audio Switch Key-for use with Q34 headsets");

         parts.forValue("printers").addOptions("P5 - Printer P5, High Reliability Printer for use with S4s",
                                                        "PAR - Replacement Paper Roll");

        parts.forValue("wireless").addOptions("TED-TX10 - Teledata Wireless Transmission System 10mW, to 1.5 Km",
                                                        "TED-RX10 - Teledata receiver for 10 mW",
                                                        "TED-TX400 - Teledata Wireless Transmission System 400mW, to 5 Km",
                                                        "TED-RX400 - Teledata receiver for 400 mW",
                                                        "RX-C10 - TED 10-Chanal Adapter for TdC 8001 and Timer S4",
                                                        "TTr - TED/Photocell Bracket");

        parts.forValue("power").addOptions("NLG8 - Timer S4 and TdC Power Supply and Charger",
                                                        "NC TdC - Battery Pack for TdC Timers",
                                                        "PP ASC1 - Battery Pack for ASC1 Start Clock",
                                                        "PP4 - Built-in Battery and Charger, for Display Boards",
                                                        "PS4 - Built-in 110Vac Power Supply for Display Boards",
                                                        "NiCd - NiCad 'AA' battery set (4) for Comet Timer",
                                                        "LGCT - Charging Unit for Comet Timer",
                                                        "LG-TED - Charging Unit for TED Teledata Radios",
                                                        "NC TED - Battery Pack for TED teledata Radios");

        parts.forValue("accessories").addOptions("Expansion Ports, Adaptors, Mounting systems, Cases, Printer Paper etc.",
                                                        "TIDO - Docking Station for TIMY",
                                                        "MC9 - Multi Channel adaptor for TIMY, TdC 8001 - (Intermediated Times)",
                                                        "DL - External Speaker for Timer Audio Tones",
                                                        "GTT15 - Carry Bag for 15cm Displays",
                                                        "GTT25 - Carry Bag for 25cm Displays",
                                                        "TS - Tape Switch (3m) - (For use in biking/track applications.)",
                                                        "023-10 - Hand-Held Button",
                                                        "915-3 - Timer - Sensor (Start) Opto-isolator Line Conditioner",
                                                        "916-01 - Timer - Data (Display/PC) Opto-isolator Line Conditioner",
                                                        "924 - Triggering Contact Relay Inverter",
                                                        "232-OPT - RS232 Data Drivers and Noise Limiters",
                                                        "BBG - Replacement Mounting Brackets for Photo Cells etc.");

        parts.forValue("cables").addOptions("LSK - 3 Conductor, Rubberized Photocell Cable, /metre",
                                                        "000-05 - 1 Pair Connect Cable, 5m, Banana Plugs",
                                                        "000-10 - 1 Pair Connect Cable, 10m, Banana Plugs",
                                                        "00X-10,20,30 - Photocell Cable, all types, 10m, 20m, 30m",
                                                        "004-01 - Timer to Timer Synchronization Cable, 1m",
                                                        "005-02 - External Battery Cable for all Timers",
                                                        "010-10 - Display Data Cable, 10m",
                                                        "027-02 - RLSc Photocell to Timer Connect Jumper",
                                                        "DinX-01 - Timer Din Connect Jumper",
                                                        "03X-01 - Display to Display Connect Cable, 1m",
                                                        "032-05 - Display External Power (12Vdc) Cable, 5m",
                                                        "D-D25 - Timer to Computer Cable, Din - DB25",
                                                        "D-D9 - Timer to Computer Cable, Din - DB9",
                                                        "D-Cen - Timer to Computer Cable, Din - Centronics",
                                                        "702 - Replacement Printer Head for TdC or P3/P4",
                                                        "VQ - Banana Plugs",
                                                        "DIN - Din Plugs (all types)",
                                                        "AMP-KAB/GER - AMP Connector - Female Cable/Male Device");



        parts.selectFirstOption = true;