var xmlHttp
function showState(str)
{ 
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null)
  	{
  		alert ("Your browser does not support AJAX!");
  		return;
  	} 
	var url="getcountry.php";
	url=url+"?q="+str;
	url=url+"&sid="+Math.random();
	xmlHttp.onreadystatechange=stateChanged;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}
function stateChanged() 
{ 
	if (xmlHttp.readyState==4)
	{ 
		document.getElementById("txtHint").innerHTML=xmlHttp.responseText;
	}
}


function showCity(str)
{ 
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null)
  	{
  		alert ("Your browser does not support AJAX!");
  		return;
  	} 
	var url="getState.php";
	url=url+"?q="+str;
	url=url+"&sid="+Math.random();
	xmlHttp.onreadystatechange=cityChanged;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}
function cityChanged() 
{ 
	if (xmlHttp.readyState==4)
	{ 
		document.getElementById("txtCit").innerHTML=xmlHttp.responseText;
	}
}



function showSub(str)
{ 
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null)
  	{
  		alert ("Your browser does not support AJAX!");
  		return;
  	} 
	var url="getSub.php";
	url=url+"?q="+str;
	url=url+"&sid="+Math.random();
	xmlHttp.onreadystatechange=catChanged;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}
function catChanged() 
{ 
	if (xmlHttp.readyState==4)
	{ 
		document.getElementById("txtSub").innerHTML=xmlHttp.responseText;
	}
}



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;
}