// JavaScript Document
function zobraz(papu)
{
      document.getElementById(zobrazena).style.display = "none";
      document.getElementById(papu).style.display = "block";
      zobrazena=papu;
}

function vyberClanek(url)
{     
     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("mistoZobrazeni").innerHTML = "";
        
      }
}

function processRequest()
{
  if (httpRequest.readyState == 4)
  {
    if(httpRequest.status == 200)
    {
      var mistoZobrazeni = document.getElementById("mistoZobrazeni");
      mistoZobrazeni.innerHTML = httpRequest.responseText;
      zobrazena = "zadny";
    }
    else
    {
        alert("Chyba pri nacitani stanky"+ httpRequest.status +":"+ httpRequest.statusText);
    }
  }
}