var xmlHttpstate = createXmlHttpRequestObject();

function createXmlHttpRequestObject() 
{
  var xmlHttp;
 
  try
  {
    xmlHttp = new XMLHttpRequest();
  }
  catch(e)
  {
    var XmlHttpVersions = new Array("MSXML2.XMLHTTP.6.0","MSXML2.XMLHTTP.5.0","MSXML2.XMLHTTP.4.0","MSXML2.XMLHTTP.3.0","MSXML2.XMLHTTP","Microsoft.XMLHTTP");
    for (var i=0; i<XmlHttpVersions.length && !xmlHttp; i++) 
    {
      try 
      { 
        xmlHttp = new ActiveXObject(XmlHttpVersions[i]);
      } 
      catch (e) {}
    }
  }
  if (!xmlHttp)
    alert("Error creating the XMLHttpRequest object.");
  else 
    return xmlHttp;
}

function changeStateList(country)
{
	try
	{
		document.getElementById("NewState").innerHTML = "Loading...";
		xmlHttpstate.open("GET", "scripts/getstate.php?id=" + country, true);
		xmlHttpstate.onreadystatechange = Addstate;
		xmlHttpstate.send(null);
	}
	catch(e)
	{
		alert(xmlHttpstate.statusText);
	}
}

function Addstate()
{
	if (xmlHttpstate.readyState == 4)
	{
		if (xmlHttpstate.status == 200)
		{
			try
			{
				getstate();
			}
			catch(e)
			{
				alert(xmlHttpstate.statusText);
			}
		}
		else
		{
			alert(xmlHttpstate.status);
		}
	}
}

function getstate()
{
	var response = xmlHttpstate.responseText;
	document.getElementById("NewState").innerHTML = response;
}