// JavaScript Document
var xmlHttp
 function showUser(str)
 { 
  xmlHttp=GetXmlHttpObject()
   if (xmlHttp==null)
    {
     alert ("Browser does not support HTTP Request")
     return
    }
  var url="ajax.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 
	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;
 }