How can I reload etags project path

[address@hidden]

Hi,

In my .emacs I have defined the etags project path like this:


(defvar etags-project-path "/media/storage/working" "*Base path for
your project")

(require 'etags)
(setq tags-file-name (expand-file-name "TAGS" etags-project-path))

After i open emacs, how can i point to a different project path,let's
say i have multiple project etag files, how can i switch dynamically?

Thank you.