function printwindow()
{
w=570;
h=640;
x=(window.screen.width-w)/2;
y=(window.screen.height-h)/3;
var url=document.location + "";
slowo=url.substring(url.indexOf("="));
server=url.substring(0,url.indexOf("index.php"));
strona=server + "printing.php?strona" + slowo;
noweOkno = window.open(strona,'druk','menubar=no,toolbar=no,location=no,scrollbars=yes,resizable=no,status=no,width='+w+',height='+h+',left='+x+',top='+y);
noweOkno.focus();
};