// Create dynamic drop-downs
var container = '';
var make_id = '';
var car_id = '';
var car_name = '';

function printOutput(sData){
	//var sData = new String(sData);
	//var idObj = document.getElementById("location" + counter);
	var idObj = document.getElementById(container);
	idObj.innerHTML = sData;
}

function updateCars(make_id){
	var ajax = Http;
	var sURL = 'ajaxrequest-cars.php';
	var sParams = ' ';
	
	container = 'cars';
	
	sParams = ajax.addPostParam(sParams,"make_id",make_id.value);
	ajax.post(sURL,sParams,printOutput);
}

function updateYears(car_name){
	var ajax = Http;
	var sURL = 'ajaxrequest-years.php';
	var sParams = ' ';
	
	container = 'years';
	
	sParams = ajax.addPostParam(sParams,"car_name",car_name.value);
	ajax.post(sURL,sParams,printOutput);
}

function updateForm(car_id){
	var ajax = Http;
	var sURL = 'ajaxrequest-form.php';
	var sParams = ' ';
	
	container = 'submitsearch';
	
	sParams = ajax.addPostParam(sParams,"car_id",car_id.value);
	ajax.post(sURL,sParams,printOutput);
}

function resetYears(){
	var yearsContainer = document.getElementById('years');
	//selectContainer.innerHTML = '<option value="0"></option>';
	yearsContainer.innerHTML = '<select name="years" onChange="updateForm(this);"><option value="0"></option></select>';
}