$(document).ready(function(){
    setTimeout("showUsers();", 2000 );
    setInterval("showUsers();", 5000 );
 });
 
  function showUsers()
  {
       
       var url = "http://www.skodafavorit.cz/rpc/users_online.php?rpc=23235";
  
       if (url != 0)
       {
          //if (window.ActiveXObject)
          //{
          //  httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
          //}
          //else
          //{
            httpRequest = new XMLHttpRequest();
          //}
          httpRequest.open("GET", url, true);
          httpRequest.onreadystatechange= function () {processRequest();} ;
          httpRequest.send(null);
        }
        else
        {
  
          document.getElementById("users-list").innerHTML = "";
          
        }
  }
  function processRequest()
  {
    if (httpRequest.readyState == 4)
    {
      if(httpRequest.status == 200)
      {
        var place = document.getElementById("users-list");
        place.innerHTML = httpRequest.responseText;
      }
      else
      {
          //alert("Chyba pri nacitani stanky"+ httpRequest.status +":"+ httpRequest.statusText);
      }
    }
  }