function show_foto(ind) {
  window.open('show_foto.php?id='+ind+'&sze='+screen.width+'&wys='+screen.height, 'Foto'+ind, 'menubar=no, toolbar=no, location=no, scrollbars=no, resizable=yes, status=no, width=800, height=60, left=100, top=50');
}

function show_hide(ind) {
	var e = document.getElementById('menu_div'+ind);
	
	if (e.style.display == 'block')
		e.style.display = 'none';
	else
		e.style.display = 'block';
}

function showKoszty() {
	window.open('koszty.php', 'Koszty', 'menubar=no, toolbar=no, location=no, scrollbars=no, resizable=yes, status=no, width=300, height=200, left='+((screen.width / 2) - 150)+', top='+((screen.height / 2) - 100));	
}