var xmlHttp
function showCustomer(str)
{ 
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
	alert ("Your browser does not support AJAX!");
	return;
  } 
var url="../../../Ajax/Thoitiet.aspx";
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)
{ 
	
	try {
		document.getElementById("txtTest").innerHTML=xmlHttp.responseText;
	}
	catch (e)
	{
		document.getElementById("txtTest").innerHTML="";
		var parentElement = document.getElementById("txtTest");
		var wrappingDiv = document.createElement('div');
		wrappingDiv.innerHTML = xmlHttp.responseText;
		parentElement.appendChild(wrappingDiv);
	}	
	
	//alert(document.getElementById("txtTest").Value);
}
}

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;
}