function fillMake()
{
	addOption(document.drop_list.Make, "Chevrolet", "Chevrolet", "");
	addOption(document.drop_list.Make, "Dodge", "Dodge", "");
	addOption(document.drop_list.Make, "Ford", "Ford", "");
}

function SelectModel()
{
	removeAllOptions(document.drop_list.Model);
	addOption(document.drop_list.Model, "", "Select One", "");
	
	if (document.drop_list.Make.value == 'Chevrolet')
	{
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=Cargo", "Cargo");
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=Colorado", "Colorado");
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=Express", "Express");
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=HHR", "HHR");
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=Kodiak", "Kodiak");
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=Silverado", "Silverado");
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=SilveradoHD", "Silverado HD");
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=Trailering", "Trailering");
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=VanModel", "Van Model");
	}
	
	if (document.drop_list.Make.value == 'Dodge')
	{
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=GrandCaravanCargo", "Grand Caravan Cargo");
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=Ram1500", "Ram 1500");
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=Ram2500", "Ram 2500");
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=Ram3500ChassisCab", "Ram 3500 Chassis Cab");
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=Ram4500ChassisCab", "Ram 4500 Chassis Cab");
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=Ram5500ChassisCab", "Ram 5500 Chassis Cab");
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=Sprinter", "Sprinter");
	}

	if (document.drop_list.Make.value == 'Ford')
	{
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=E-150", "E-150");
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=E-250", "E-250");
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=E-350Cutaway", "E-350 Cutaway");
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=E-350Stripped", "E-350 Stripped");
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=E-350SuperDuty", "E-350 Super Duty");
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=E-450Cutaway", "E-450 Cutaway");
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=E-450Stripped", "E-450 Stripped");
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=F-250", "F-250");
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=F-350", "F-350");
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=F-350Chassis", "F-350 Chassis");
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=F-450Chassis", "F-450 Chassis");
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=F-550Chassis", "F-550 Chassis");
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=F-650", "F-650");
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=F-750", "F-750");
		addOption(document.drop_list.Model, "VehicleDetails.asp?Type=LCF", "LCF");
	}
}
	
function removeAllOptions(selectbox)
{
	var i;

	for(i = selectbox.options.length - 1;i >= 0;i--)
	{
		selectbox.remove(i);
	}
}
	
function addOption(selectbox, value, text)
{
	var optn = document.createElement("OPTION");
	optn.text = text;
	optn.value = value;
		
	selectbox.options.add(optn);
}