function whenLoading(message) {
  var e = document.getElementById('replaceme');
  e.innerHTML = "<span style='color:#BB0000; font-size:11px;'>sprawdzam cenę i dostępność...</span>";
}

function whenLoaded() {
  var e = document.getElementById('replaceme');
  e.innerHTML = "";
}

function whenCompleted() {
  /*if (ajax.responseStatus) {
    var string = "Status Code: " + ajax.responseStatus[0] + "<br />Status Message: " + ajax.responseStatus[1] + "<br />URLString Sent: " + ajax.URLString;
  } else {
    var string = "URLString Sent: " + ajax.URLString;
  }
  string = string + "<br />Response: " + ajax.response;*/
  //var string = "Response: " + ajax.response;
  var e = document.getElementById('replaceme');
  e.innerHTML = "";
  //e.innerHTML = ajax.response;
  
  value = ajax.response;
  //var regex = /^([0-9])+\.([0-9])+(\b)*zł$/;
  //var regex = /^([0-9])+\.([0-9])+.+$/;
  var regex = /^([0-9])+.+$/;
  var kt = document.getElementById('kupteraz');
  //alert(kt.style.display);
  //alert(value);
  if (value != '' && !regex.test(value)) {
    kt.style.display = 'none';
    //alert(value + " - to nie jest cena");
  } else {
    kt.style.display = 'inline';
    //alert("To jest cena");
  }
  //alert(kt.style.display);
}

function updatePrice() {
  //var form = document.getElementById('node_edit_area');
  var ilosc   = document.getElementById('ilosc');
  var rozmiar = document.getElementById('rozmiar');
  var prod_id = document.getElementById('prod_id');
  if (ilosc.value == 0 | rozmiar.value == 0 | prod_id.value == 0) {
    alert("Musisz określić zarówno ilosc jak i rozmiar!");
  } else {
    ajax = new sack();
    ajax.setVar("ilosc", ilosc.value);
    ajax.setVar("rozmiar", rozmiar.value);
    ajax.setVar("prod_id", prod_id.value);
    ajax.requestFile = "koszulka_cena.php";
    //ajax.method = form.method.value;
    ajax.element = 'cena';
    ajax.onLoading = whenLoading;
    ajax.onLoaded = whenLoaded;
    //ajax.onInteractive = whenInteractive;
    ajax.onCompletion = whenCompleted;
    ajax.runAJAX();
    
    /*var booking_anchor = document.getElementById('booking_anchor');
    if (booking_anchor) {
      ilosc = document.getElementById('ilosc');
      rozmiar = document.getElementById('how_many_rozmiar');
      booking_anchor.pathname = "/booking.php?v="+(ilosc.value)+"&l="+(rozmiar.value);
    }*/
    //alert(booking_anchor);
  }
}