* 'click_month' - (boolean) If true, the month is clickable. * DEFAULT: false * 'click_week' - (boolean) If true, will display a clickable week. * DEFAULT: false * 'click_year' - (boolean) If true, the year is clickable. * DEFAULT: false * 'full_weekdays' - (boolean) Add full weekday localized list to * javascript object. * DEFAULT: false * 'short_weekdays' - (boolean) Display only the first letter of * weekdays? * DEFAULT: false *