pyramid_of_doom.js

gistfile1.js

Users.login(
      username,
      password,
      function () {
        usersModel.load(
          function () {
            App.navigate('profile.html',
              function () {
                alert("You've logged in!");
              },
              function (err) {
                showError(err.message);
              });
          },
          function (err) {
            showError(err.message);
          });
      },
      function (err) {
        showError(err.message);
      });