function Warstwa(nr)
{
 Wleft=Math.floor(((screen.width)/2)-250);
 Wtop=Math.floor(((screen.height)/2)-150);
 document.getElementById("w"+nr).style.left = Wleft + "px";
 document.getElementById("w"+nr).style.top = Wtop + "px";
 document.getElementById("w"+nr).style.visibility =
document.getElementById("w"+nr).style.visibility=="hidden" ? "" : "hidden";
}

function okno(img)
{
pozX = Math.floor(((screen.width)/2)-25);
pozY = Math.floor(((screen.height)/2)-25);
fotowindow = window.open('bigFoto.php?name=' + img, 'shop', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,fullscreen=no,channelmode=no,width=100,height=100, left=' + pozX + ', top=' + pozY);
fotowindow.focus();
}

function insertTransVal(amount, total, totalR)
{
document.basket.transVal.value= amount.toFixed(2);
document.basket.tSum.value = (total + amount).toFixed(2);
document.basket.trSum.value = (totalR + amount).toFixed(2);
}