var xmlhttp;
var xmlhttp2;
var xmlhttp3;

function showUser(str)
{
xmlhttp=GetXmlHttpObject();
if (xmlhttp==null)
  {
  alert ("Browser does not support HTTP Request");
  return;
  }
var url="getuser.php";
url=url+"?q="+str;
url=url+"&sid="+Math.random();
xmlhttp.onreadystatechange=stateChanged;
xmlhttp.open("GET",url,true);
xmlhttp.send(null);
}

function showUser2(str2)
{
xmlhttp2=GetXmlHttpObject();
if (xmlhttp2==null)
  {
  alert ("Browser does not support HTTP Request");
  return;
  }
var url="getuser2.php";
url=url+"?q2="+str2;
url=url+"&sid="+Math.random();
xmlhttp2.onreadystatechange=stateChanged2;
xmlhttp2.open("GET",url,true);
xmlhttp2.send(null);
}

function showUser3(str3,str4)
{
xmlhttp3=GetXmlHttpObject();
if (xmlhttp3==null)
  {
  alert ("Browser does not support HTTP Request");
  return;
  }
var url="getuser3.php";
url=url+"?q3="+str3+"&q2="+str4;
url=url+"&sid="+Math.random();
xmlhttp3.onreadystatechange=stateChanged3;
xmlhttp3.open("GET",url,true);
xmlhttp3.send(null);
}

function stateChanged2()
{
if (xmlhttp2.readyState==4)
{
document.getElementById("txtHint2").innerHTML=xmlhttp2.responseText;
}
}

function stateChanged3()
{
if (xmlhttp3.readyState==4)
{
document.getElementById("txtHint3").innerHTML=xmlhttp3.responseText;
}
}

function stateChanged()
{
if (xmlhttp.readyState==4)
{
document.getElementById("txtHint").innerHTML=xmlhttp.responseText;
}
}

function GetXmlHttpObject()
{
if (window.XMLHttpRequest)
  {
  // code for IE7+, Firefox, Chrome, Opera, Safari
  return new XMLHttpRequest();
  }
if (window.ActiveXObject)
  {
  // code for IE6, IE5
  return new ActiveXObject("Microsoft.XMLHTTP");
  }
return null;
}