//fonkcja otwiera nowe okno
function no(strToUrl,name,width,height)
{
 window.open(strToUrl, name,'toolbar=no, personalbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=no, resizable=no, copyhistory=no, width= ' + (width) + ',height=' + (height)+',left='+(screen.width/2-width/2)+',top='+(screen.height/2-height/2));
}