var xmlHttp

function showCustomer(str,a)
{ 
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  } 

if(a==1)
{
var url="../ajax/getuser1.php";
url=url+"?q="+str;
url=url+"&sid="+Math.random();
xmlHttp.onreadystatechange=stateChanged;
}
else if(a==2)
{
var url="../ajax/title.php";
url=url+"?q="+str;
url=url+"&sid="+Math.random();
xmlHttp.onreadystatechange=stateChanged2;
}
else if(a==3)
{
var url="../ajax/check_url.php";
url=url+"?q="+str;
url=url+"&sid="+Math.random();
xmlHttp.onreadystatechange=stateChanged3;
}
else
{
var url="../ajax/getuser1.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 stateChanged2() 
{ 
if (xmlHttp.readyState==4)
{ 
document.getElementById("tch").innerHTML=xmlHttp.responseText;
}
}

function stateChanged3() 
{ 
if (xmlHttp.readyState==4)
{ 
document.getElementById("uch").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;
}