gistfile1.js

var create_callback = function(data) {
  if (data.status == 'OK') {
    $("#inline_message").html('<h3>Thanks</h3> <p>You will receive an email once the item is available.</p>');
  } else {
    $("#inline_message").html('<h3>Oops! Looks like an error occurred.</h3> <p>Please check the email address you entered and try again.</p>');
  }

  $.fancybox({
    'href': '#inline_message'
  });                                
}