function $(id) {
	return document.getElementById(id);
}

var win= null;
function pict(photo,w,h){
var winl = (screen.width-w)/2;
var wint = (screen.height-h)/2;
var myname='Picture';
var settings ='height='+h+',';
settings +='width='+w+',';
settings +='top='+wint+',';
settings +='left='+winl+',';
settings +='scrollbars=no,';
settings +='resizable=no';
win=window.open('/obrazek.php?x='+photo,myname,settings);
if(parseInt(navigator.appVersion) >= 4){win.window.focus();}
}
function submenu(id) {
	var sub = $('sub_'+id);
	var z = $('zwijaki').value;
	var zw = z.split(';');
	var ile = zw.length;
	for(i=0;i<ile;i++) {
		var nr = zw[i];
		$('sub_'+nr).style.display = "none";
	}
	sub.style.display = "block";
}