var xmlHttp;

/* Functions */

function stavUzivateleTest(str, where) {
alert(where.title);

//where.title=where.title;
}

function stavUzivatele(str, where)
{
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
 {
 alert ("Browser does not support HTTP Request");
 return;
 }
var url="ajax/stav_uzivatele.php";
url=url+"?nick="+str;
/*url=url+"&sid="+Math.random();*/

ctlName = "txt";

     xmlHttp.onreadystatechange=function() {
     if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete") {
            document.getElementById(ctlName).innerHTML=xmlHttp.responseText;
        }
     };

xmlHttp.open("GET",url,true);
xmlHttp.send(null);
}

/* State changes */
/*
function stateChanged(str) 
{
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 { 
 document.getElementById(str).innerHTML=xmlHttp.responseText;
 } 
}
*/
/* Main */

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;
}