code: function initialize(y, m, d) {
    var today = dateUtils.today();
    var thisDay = dateUtils.getDay(today);
    var thisMonth = dateUtils.getMonth(today);
    var thisYear = dateUtils.getYear(today);
  
    calendar.y = y || thisYear;
    calendar.m = m || thisMonth;
    calendar.d = d || thisDay;
  
    calendar.year = yearFactory.get(calendar.y);
  }
docs: Initializes the calendar.
  @param {number} [y] year (default: this year)
  @param {number} [m] month (default: this month)
  @param {number} [d] day (default: this day)
  @private