var xmlHttp
function showProduct(str1,str2,str3,str4){
xmlHttp=GetXmlHttpObject()
if(xmlHttp==null){
alert("Browser does not support HTTP Request")
return}
var url="ajax.php"
url=url+"?colour="+str1+"&brand="+str2+"&size="+str3+"&fuel_type="+str4
url=url+"&sid="+Math.random()
xmlHttp.onreadystatechange=stateChanged
xmlHttp.open("GET",url,true)
xmlHttp.send(null)}
function stateChanged(){
if(xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){
document.getElementById("ajaxResult").innerHTML=xmlHttp.responseText}}
function GetXmlHttpObject(){
var xmlHttp=null
try{
xmlHttp=new XMLHttpRequest()}
catch(e){
try{
xmlHttp=new ActiveXObject("Msxml2.XMLHTTP")}
catch(e){
xmlHttp=new ActiveXObject("Microsoft.XMLHTTP")}}
return xmlHttp}