function spust_tim() {

   //kazdou minutu zkontroluj jestli muzes zapnout akci
   
   setInterval("zkontrolujZobrazeniSlevy()", 1*60*1000)
   

}


function zkontrolujZobrazeniSlevy() {

    //vytahnu z cookies aktualni hodnotu $cKonecSlevy odectu time() a zobrazim do id zobrazcas
    vratcas();
    
    var povoleny_cas = document.getElementById("zobrazcas").innerHTML;
    
    
    if (povoleny_cas>1) document.getElementById('ossleva').style.display="block";
    else document.getElementById('ossleva').style.display="none";
               
               

}




function vratcas()
{
     
     
     
     
     var url = '/ajax_scripty/over_cas_slevy.php';

     
        if (window.ActiveXObject)
        {
          httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
        }
        else
        {
          httpRequest = new XMLHttpRequest();
        }
        httpRequest.open("GET", url, true);
        httpRequest.onreadystatechange= function () {processRequestSleva(); } ;
        httpRequest.send(null);
     
}




function processRequestSleva()
{
  if (httpRequest.readyState == 4)
  {
    if(httpRequest.status == 200)
    {
      var mistoZobrazeni = document.getElementById("zobrazcas");
      mistoZobrazeni.innerHTML = httpRequest.responseText;
      
    }
    
  }  
}