luos/gulliver/js/widgets/js-calendar/lang/fr.js

if (typeof Calendar!='undefined' ) {
Calendar.LANG("fr", "Français", {
        fdow: 1,                // first day of week for this locale; 0 = Sunday, 1 = Monday, etc.
        goToday : "Aujourd'hui",
        today: "Aujourd'hui",         // appears in bottom bar
        wk: "sm.",
        weekend: "0,6",         // 0 = Sunday, 1 = Monday, etc.
        AM: "am",
        PM: "pm",
        mn : [ "Janvier","Février","Mars","Avril","Mai","Juin","Juillet","Août","Septembre","Octobre","Novembre","Décembre" ],
        smn : [ "Jan","Fév","Mar","Avr","Mai","Juin","Juil","Aou","Sep","Oct","Nov","Déc" ],
        dn : [ "Dimanche","Lundi","Mardi","Mercredi","Jeudi","Vendredi","Samedi","Dimanche" ],
        sdn : [ "Di","Lu","Ma","Me","Je","Ve","Sa","Di" ],
        done: "Fait" //Appears in bottom bar
});
}