// JavaScript Document
if (typeof jQuery == 'undefined') {  
    // jQuery is not loaded
	alert('jQuery is required to run this script');
}
var rvGuid;
var rvRel = 'RV';
var rvFilter = '';
var rvFormatFunction = 'rvFormatRandomVehicle';
var rvXML;
var rvElements;
var rvVehicles;
var rvTotal;
function rvVehicles(){
	rvElements = $('*[rel="'+rvRel+ '"]').html('Loading...');
	rvTotal = rvElements.length;	
	$.ajax({
  		url: 'randomVehicles.js.php',
		data:'randomGuid=' + rvGuid + '&count=' + rvTotal + '&filter=' + rvFilter,
		dataType:'xml',
  		success: AjaxSuccess,
		error: AjaxError
	});
}
function AjaxSuccess($_data, $_textStatus, $_XMLHttpRequest){
	rvXML = $_data;
	if(jQuery.isXMLDoc(rvXML)){
		rvVehicles = $('Vehicle',rvXML);
		rvElements.each(FormatRV);
	}
}
function AjaxError($_XMLHttpRequest, $_textStatus, $_errorThrown){
	$('body').prepend('<p><strong>Error: </strong>' + $_XMLHttpRequest + ' ' + $_textStatus + ' ' + $_errorThrown + '</p>');
}
function FormatRV($_index, $_element){
	if(typeof rvVehicles[$_index] == 'undefined'){
    	$($_element).html('Vehicle was not loaded');
    } else {
        var vehicle = $(rvVehicles[$_index]);
        var vehicleObj = new Object();
        vehicle.children().each(function($_index2, $_element2){
            var currentNode = $($_element2);
            vehicleObj[currentNode.context.nodeName] = currentNode.text();
        });
        var formatedHTML = eval(rvFormatFunction + "(vehicleObj)");
        $($_element).html(formatedHTML);
    }
}
function rvFormatRandomVehicle($_vehicleObj){
	var output = '<h2>' + $_vehicleObj.Year + ' ' + $_vehicleObj.Make + ' ' + $_vehicleObj.Model + '</h2>';
	output += '<img src="' + $_vehicleObj.Thumbnail + '" />';
	return output;
}