jQuery.datepicker.setDefaults({ 
    //showAnim:'fadeIn',
    dateFormat: 'd.m.yy',
    firstDay:1,
    dayNamesMin: ["Ne","Po","Út","St","Čt","Pá","So"], 
    dayNamesShort: ["Neď","Pon","Úte","Stř","Čtv","Pát","Sob"],
    dayNames: ["Neděle","Pondělí","Úterý","Středa","Čtvrtek","Pátek","Sobota"], 
    monthNamesShort: ["Led","Úno","Bře","Dub","Kvě","Črn","Črc","Srp","Zář","Říj","Lis","Pro"], 
    monthNames: ["Leden","Únor","Březen","Duben","Květen","Červen","Červenec","Srpen","Září","Říjen","Listopad","Prosinec"]
 });