function bindSizes() {
  var menu = $('fontSizes');
  menu && menu.observe('click', function(e) {
    var activator = e.findElement('a');
    if (!activator) return;
    e.stop();
    document.body.addClassName(activator.id);
    menu.select('a').each(function(link) {
      if (link == activator) {
        link.addClassName('selected');
      } else {
        link.removeClassName('selected');
        document.body.removeClassName(link.id);
      }
    });
  });
} // bindMenu


document.observe('dom:loaded', function() {
  bindSizes();
});