window.addEvent('domready', function() {
  $$('#container a.navipic').each(function(el) {
    el.setStyle('opacity', 0.5);
    el.addEvent('mouseover', function(e) { e.stop(); el.fade(1); });
    el.addEvent('mouseout', function(e) { e.stop(); el.fade(0.5); });
  });
});