function detail(img) {
  window.open('kostra/detail.php?foto='+img, '', 'toolbars=0,resizable=1,directories=0,statusbar=1,scrollbars=1');
}

function bar(url) {
  wasOpen = false;
  win = window.open(url);
  return (typeof(win) == 'object') ? true : false;
}