function GetXmlHttpObject()
{
var xmlHttp=null;
try
 {
 // Firefox, Opera 8.0+, Safari
 xmlHttp=new XMLHttpRequest();
 }
catch (e)
 {
 //Internet Explorer
 try
  {
  xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
  }
 catch (e)
  {
  xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
 }
return xmlHttp;
}

///my function///////////////////////////////

function showModel(id)
{ 

	//alert('im running');

var id = id.value;

xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
 {
 alert ("Browser does not support HTTP Request")
 return
 }
 
var url="get_model.php"
url=url+"?id="+id
//url=url+"&type="+type

xmlHttp.onreadystatechange=changeDropDown
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
}

function changeDropDown() 
{ 
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 { 
	//alert('sdf');
 document.getElementById("model").innerHTML=xmlHttp.responseText
	 
 } 
}

function showEngine(name)
{ 
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
 {
 alert ("Browser does not support HTTP Request")
 return
 }

 var name = name.value;
 
var url="get_engine.php"
url=url+"?name="+name
//url=url+"&type="+type

xmlHttp.onreadystatechange=changeDropDown2
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
}

function changeDropDown2() 
{ 
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 { 
 document.getElementById("engine").innerHTML=xmlHttp.responseText
	 
 } 
}

function showResults(model_name)
{ 

xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
 {
 alert ("Browser does not support HTTP Request")
 return
 }

var model_name = model_name.value;

var url="get_results.php"
url=url+model_name 


xmlHttp.onreadystatechange=showResultss
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
}

function showResultss() 
{ 
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 { 
	//
 document.getElementById("results").innerHTML=xmlHttp.responseText
	 
 } 
}