function onColor(co,jaki) {
	co.style.backgroundColor=jaki;
}
function offColor(co,jaki) {
	co.style.backgroundColor=jaki;
}
popup="";
function okno(arg,s,x,y) {
	if (popup == '[object]') {popup.close()} else {}
	scr_width = screen.availWidth;
	scr_height = screen.availHeight;
	left_align = eval(scr_width/2)-eval(x/2);
	top_align = eval(scr_height/2)-eval(y/2);
	popup=window.open(arg,'szczegoly','toolbar=0,location=0,direction=0,status=0,resize=0,menubar=0,scrollbars='+s+',width='+x+',height='+y+',left='+left_align+',top='+top_align);
}