var xmlhttp;

function showmodel(manuf)
{
xmlhttp=GetXmlHttpObject();
if (xmlhttp==null)
  {
  alert ("Browser does not support HTTP Request");
  return;
  } 
  
var url="../common/DropD.php";
url=url+"?q="+manuf;
url=url+"&sid="+Math.random();
xmlhttp.onreadystatechange=stateChanged2;
xmlhttp.open("GET",url,true);
xmlhttp.send(null);
}

function stateChanged2()
{
if (xmlhttp.readyState==4)
{
	
document.getElementById("txtHint2").innerHTML=xmlhttp.responseText;
tester1=showvehicle();
}
}

function GetXmlHttpObject()
{
if (window.XMLHttpRequest)
  {
  // code for IE7+, Firefox, Chrome, Opera, Safari
  return new XMLHttpRequest();
  }
if (window.ActiveXObject)
  {
  // code for IE6, IE5
  return new ActiveXObject("Microsoft.XMLHTTP");
  }
return null;
}