#MENU_LANG and #MENU_LANG_ECRIRE: these tags generate and display a menu of languages that enable the visitor to view the current page in the visitor’s selected language.
-  The 
#MENU_LANGtag displays the list of languages for the site. -  The 
#MENU_LANG_ECRIREtag displays the list of languages available in the private zone (and is used on the login page for the private area).