var disable_empty_list=true;

addListGroup("vehicles", "car-makers");

addOption("car-makers", "Select a make", "", "", 1); //Empty starter option
addList("car-makers", "Buick", "Buick", "Buick");
addList("car-makers", "Chevrolet", "Chevrolet", "Chevrolet");
addList("car-makers", "Ford", "Ford", "Ford");
addList("car-makers", "GMC", "GMC", "GMC");
addList("car-makers", "Honda", "Honda", "Honda");
addList("car-makers", "Hyundai", "Hyundai", "Hyundai");
addList("car-makers", "Lincoln", "Lincoln", "Lincoln");
addList("car-makers", "Mazda", "Mazda", "Mazda");
addList("car-makers", "Mercedes-Benz", "Mercedes-Benz", "Mercedes-Benz");
addList("car-makers", "Mitsubishi", "Mitsubishi", "Mitsubishi");
addList("car-makers", "Nissan", "Nissan", "Nissan");
addList("car-makers", "Pontiac", "Pontiac", "Pontiac");
addList("car-makers", "Saturn", "Saturn", "Saturn");
addList("car-makers", "Toyota", "Toyota", "Toyota");
addList("car-makers", "Volkswagen", "Volkswagen", "Volkswagen");

addOption("Buick", "Select vehicle model", "", "", 1); //Empty starter option
addList("Buick", "Enclave", "Enclave");

addOption("Chevrolet", "Select vehicle model", "", "", 1); //Empty starter option
addList("Chevrolet", "Corvette", "Corvette");
addList("Chevrolet", "Malibu", "Malibu");

addOption("Ford", "Select vehicle model", "", "", 1); //Empty starter option
addList("Ford", "Escape", "Escape");

addOption("GMC", "Select vehicle model", "", "", 1); //Empty starter option
addList("GMC", "Sierra 1500", "Sierra 1500");

addOption("Honda", "Select vehicle model", "", "", 1); //Empty starter option
addList("Honda", "Accord Coupe", "Accord Coupe");
addList("Honda", "Accord Sedan", "Accord Sedan");

addOption("Hyundai", "Select vehicle model", "", "", 1); //Empty starter option
addList("Hyundai", "Sonata", "Sonata");
addList("Hyundai", "Tiburon", "Tiburon");

addOption("Lincoln", "Select vehicle model", "", "", 1); //Empty starter option
addList("Lincoln", "MKX", "MKX");

addOption("Mazda", "Select vehicle model", "", "", 1); //Empty starter option
addList("Mazda", "Mazdaspeed 3", "Mazdaspeed 3");
addList("Mazda", "MX-5 Hardtop", "MX-5 Hardtop");

addOption("Mercedes-Benz", "Select vehicle model", "", "", 1); //Empty starter option
addList("Mercedes-Benz", "C300", "C300");
addList("Mercedes-Benz", "CL550", "CL550");

addOption("Mitsubishi", "Select vehicle model", "", "", 1); //Empty starter option
addList("Mitsubishi", "Lancer", "Lancer");
addList("Mitsubishi", "Outlander", "Outlander");

addOption("Nissan", "Select vehicle model", "", "", 1); //Empty starter option
addList("Nissan", "Altima Coupe", "Altima Coupe");

addOption("Pontiac", "Select vehicle model", "", "", 1); //Empty starter option
addList("Pontiac", "G6 GT Coupe", "G6 GT Coupe");

addOption("Saturn", "Select vehicle model", "", "", 1); //Empty starter option
addList("Saturn", "Astra XR Coupe", "Astra XR Coupe");

addOption("Toyota", "Select vehicle model", "", "", 1); //Empty starter option
addList("Toyota", "Camry Hybrid", "Camry Hybrid");

addOption("Volkswagen", "Select vehicle model", "", "", 1); //Empty starter option
addList("Volkswagen", "Rabbit", "Rabbit");