//onclick a gombhoz
// ajax posztoló
var req = false;
function cart_set(id, serie)
{
  //adatok
  if(isNaN(id)) return false; // id nem szám
  if(isNaN(serie)) serie = ''; // serie nem szám

  var n_input = document.getElementById('product_id-' + id + '-' + serie);
  if(!n_input) return false; // nincs meg a kért doboz

  var n = n_input.value;
  if(isNaN(n)) return false; // n nem szám

  n_input.disabled = true;
//alert('id: ' + id + '; serie: ' + serie);//dbg
  var data = 'id=' + id + '&n=' + n + '&serie=' + serie;

  // ajax kérés
  req = false;
  if (window.XMLHttpRequest)
  {//Mozilla, Safari
     req = new XMLHttpRequest();
     if (req.overrideMimeType) req.overrideMimeType("text/html");
  }
  else if (window.ActiveXObject)
  {//IE
     try { req = new ActiveXObject("Msxml2.XMLHTTP"); }
     catch (e)
     {
       try { req = new ActiveXObject("Microsoft.XMLHTTP"); }
       catch (e) {}
     }
  }
  //if (!req) return false;
  //if (!req) alert('An error occurred during the XMLHttpRequest!');

  req.open("POST", 'cart_ajax.php', true);
  req.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
  //req.setRequestHeader("Content-type", "text/plain;charset=utf-8");
  req.setRequestHeader("Content-length", data.length);
  req.setRequestHeader("Connection", "close");
  req.onreadystatechange = cart_add;
  req.send(data);

  return false;
}

function cart_add(e)
{
  if (req.readyState == 4)
  {
    if (req.status == 200)
    {
      var id = req.responseText.split(',')[0];
      var serie = req.responseText.split(',')[1];
      var n = req.responseText.split(',')[2];
	  //alert('id: ' + id + '; serie: ' + serie + '; n: ' + n);//dbg

      var n_input = document.getElementById('product_id-' + id + '-' + serie);
      if(!n_input) return false; // nincs meg a kért doboz

      //if(!isNaN(n))
      //{
        if(n_input.value != n) n_input.value = n;
        //alert('res: ' + req.responseText);
      //}
      //else alert('response is Not a Number'); // error / reset original

      n_input.disabled = false; // ha vmi gebasz van akkoris unlockolja

	  window.location.reload();
    }
    //else alert('An error occurred during the ajax request!');
  }
}