$(document).ready(function() {
$("a#single_image").fancybox({
 'overlayShow' : false,
 'zoomOpacity' : true,
 'zoomSpeedIn' : 800,
 'zoomSpeedOut' : 800,
 'easingIn' : 'easeOutBack',
 'easingOut' : 'easeInBack'
  });
$("a.group").fancybox({
 'hideOnContentClick': false,
 'zoomOpacity' : true,
 'overlayShow' : false,
 'zoomSpeedIn' : 800,
 'zoomSpeedOut' : 800,
 'easingIn' : 'easeOutBack',
 'easingOut' : 'easeInBack'
 });
});