How to customize Configurable Map Viewer (CMV) to be available on two languages choosing with button click?

I want to make this application available on two languages (MK and EN) depending on whether the user choose (click) [MK] or [EN] button.

If I set variable loc = "MK", default application language will be "MK", but if I click on button [EN] to change the application language, I don't know how to reload dojoConfig.

I would really appreciate it if someone would help me with this problem. Thank You!