var xmlHttp

function showUser(str)
{ 
	xmlHttp=GetXmlHttpObject()

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

var url="state_list.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 || xmlHttp.readyState=="complete")
    { 
	   document.getElementById("txtHint").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;
}