gistfile1.el

;; js2-mode
(autoload 'js2-mode "js2" nil t)
(add-to-list 'auto-mode-alist '("\\.js$" . js2-mode))

(add-hook 'js2-mode-hook
          '(lambda ()
             (setq js2-cleanup-whitespace nil
                   js2-mirror-mode nil
                   js2-bounce-indent-flag nil)

             (defun indent-and-back-to-indentation ()
               (interactive)
               (indent-for-tab-command)
               (let ((point-of-indentation
                      (save-excursion
                        (back-to-indentation)
                        (point))))
                 (skip-chars-forward "\s " point-of-indentation)))
             (define-key js2-mode-map "\C-i" 'indent-and-back-to-indentation)
             (define-key js2-mode-map "\C-m" nil)))