if (typeof Calendar!='undefined' ) {
  Calendar.LANG("pl", "Polish", {
        fdow: 1,                // pierwszy dzień tygodnia; 0 = Niedziela, 1 = Poniedziałek, itd.
        goToday: "Idzie Dzisiaj",
        today: "Dziś",
        wk: "wk",
        weekend: "0,6",         // 0 = Niedziela, 1 = Poniedziałek, itd.
        AM: "am",
        PM: "pm",
        mn : [ "Styczeń","Luty","Marzec","Kwiecień","Maj","Czerwiec","Lipiec","Sierpień","Wrzesień","Październik","Listopad","Grudzień" ],
        smn : [ "Sty", "Lut", "Mar", "Kwi", "Maj", "Cze", "Lip", "Sie", "Wrz", "Paź", "Lis", "Gru" ],
        dn : [ "Niedziela","Poniedziałek","Wtorek","Środa","Czwartek","Piątek","Sobota","Niedziela" ],
        sdn : [ "Ni","Po","Wt","Śr","Cz","Pi","So","Ni" ],
        done: "Sporządzono" //Appears in bottom bar
});
}