function initializeLists() 
	{ 
		updateModelYears(document.forms.contactForm.vehicle_year_1);
		updateModelYears(document.forms.contactForm.vehicle_year_2);
		updateModelYears(document.forms.contactForm.vehicle_year_3);
		
		updateMakes(document.forms.contactForm.vehicle_make_1);
		updateMakes(document.forms.contactForm.vehicle_make_2);
		updateMakes(document.forms.contactForm.vehicle_make_3);
		
		updateModels(document.forms.contactForm.vehicle_make_1.options[document.forms.contactForm.vehicle_make_1.selectedIndex].value, document.forms.contactForm.vehicle_model_1);
		updateModels(document.forms.contactForm.vehicle_make_2.options[document.forms.contactForm.vehicle_make_2.selectedIndex].value, document.forms.contactForm.vehicle_model_2);
		updateModels(document.forms.contactForm.vehicle_make_3.options[document.forms.contactForm.vehicle_make_3.selectedIndex].value, document.forms.contactForm.vehicle_model_3);
	}
	
	function updateModelYears(fieldName) 
	{ 
		var theSelect = fieldName; 
		theSelect.options.length = 0; 
		
		theSelect.options[theSelect.options.length] = new Option('');
		for(var i = 2011; i > 1984; i--)
		{
			theSelect.options[theSelect.options.length] = new Option(i, i);
		} 
		theSelect.options[theSelect.options.length] = new Option('Other', 'Other');
	}
	
	function updateMakes(fieldName) 
	{ 
		var select1 = fieldName; 
		select1.options.length = 0; 
		
		select1.options[select1.options.length] = new Option('');
		select1.options[select1.options.length] = new Option('GMC', 'GMC'); 
		select1.options[select1.options.length] = new Option('Ford', 'Ford'); 
		select1.options[select1.options.length] = new Option('Dodge', 'Dodge'); 
		select1.options[select1.options.length] = new Option('Chevy', 'Chevy'); 
		select1.options[select1.options.length] = new Option('Toyota', 'Toyota'); 
		select1.options[select1.options.length] = new Option('Nissan', 'Nissan'); 
		select1.options[select1.options.length] = new Option('Mazda', 'Mazda'); 
		select1.options[select1.options.length] = new Option('Cadillac', 'Cadillac'); 
		select1.options[select1.options.length] = new Option('Lincoln', 'Lincoln'); 
		select1.options[select1.options.length] = new Option('Hummer', 'Hummer'); 
		select1.options[select1.options.length] = new Option('Honda', 'Honda'); 
		select1.options[select1.options.length] = new Option('Jeep', 'Jeep'); 
	}
	
	function updateModels(makeName, fieldName) 
	{ 
		var select2 = fieldName; 
		select2.options.length = 0; 
		if (makeName == 'GMC') 
		{ 
		select2.options[select2.options.length] = new Option('Canyon', 'Canyon'); 
		select2.options[select2.options.length] = new Option('Sierra', 'Sierra'); 
		select2.options[select2.options.length] = new Option('Savana Van', 'Savana Van'); 
		select2.options[select2.options.length] = new Option('Safari', 'Safari'); 
		select2.options[select2.options.length] = new Option('Other', 'Other'); 
		} 
		if (makeName == 'Ford') 
		{ 
		select2.options[select2.options.length] = new Option('Ranger', 'Ranger'); 
		select2.options[select2.options.length] = new Option('Explorer Sport Track', 'Explorer Sport Track'); 
		select2.options[select2.options.length] = new Option('F-150', 'F-150'); 
		select2.options[select2.options.length] = new Option('F-250', 'F-250'); 
		select2.options[select2.options.length] = new Option('F-350', 'F-350'); 
		select2.options[select2.options.length] = new Option('E-Series Van', 'E-Series Van'); 
		select2.options[select2.options.length] = new Option('Other', 'Other'); 
		} 
		if (makeName == 'Dodge') 
		{ 
		select2.options[select2.options.length] = new Option('Dakota', 'Dakota'); 
		select2.options[select2.options.length] = new Option('Ram', 'Ram'); 
		select2.options[select2.options.length] = new Option('Sprinter Van', 'Sprinter Van'); 
		select2.options[select2.options.length] = new Option('Other', 'Other'); 
		} 
		if (makeName == 'Chevy') 
		{ 
		select2.options[select2.options.length] = new Option('Colorado', 'Colorado'); 
		select2.options[select2.options.length] = new Option('Avalanche', 'Avalanche'); 
		select2.options[select2.options.length] = new Option('Silverado', 'Silverado'); 
		select2.options[select2.options.length] = new Option('SSR', 'SSR'); 
		select2.options[select2.options.length] = new Option('Express Van', 'Express Van'); 
		select2.options[select2.options.length] = new Option('Astro Van', 'Astro Van'); 
		select2.options[select2.options.length] = new Option('Other', 'Other'); 
		}
		if (makeName == 'Toyota') 
		{ 
		select2.options[select2.options.length] = new Option('Tacoma', 'Tacoma'); 
		select2.options[select2.options.length] = new Option('Tundra', 'Tundra'); 
		select2.options[select2.options.length] = new Option('Other', 'Other'); 
		}
		if (makeName == 'Nissan') 
		{ 
		select2.options[select2.options.length] = new Option('Frontier', 'Frontier'); 
		select2.options[select2.options.length] = new Option('Titan', 'Titan'); 
		select2.options[select2.options.length] = new Option('Other', 'Other'); 
		}
		if (makeName == 'Mazda') 
		{ 
		select2.options[select2.options.length] = new Option('B-Series', 'B-Series'); 
		select2.options[select2.options.length] = new Option('Other', 'Other'); 
		}
		if (makeName == 'Cadillac') 
		{ 
		select2.options[select2.options.length] = new Option('EXT', 'EXT'); 
		select2.options[select2.options.length] = new Option('Other', 'Other'); 
		}
		if (makeName == 'Lincoln') 
		{ 
		select2.options[select2.options.length] = new Option('Mark LT', 'Mark LT'); 
		select2.options[select2.options.length] = new Option('Other', 'Other'); 
		}
		if (makeName == 'Hummer') 
		{ 
		select2.options[select2.options.length] = new Option('H2 SUT', 'H2 SUT'); 
		select2.options[select2.options.length] = new Option('Other', 'Other'); 
		}
		if (makeName == 'Honda') 
		{ 
		select2.options[select2.options.length] = new Option('Ridgeline', 'Ridgeline'); 
		select2.options[select2.options.length] = new Option('Other', 'Other'); 
		}
		if (makeName == 'Jeep') 
		{ 
		select2.options[select2.options.length] = new Option('Wrangler', 'Wrangler'); 
		select2.options[select2.options.length] = new Option('Other', 'Other'); 
		}		
	}