code: function(id, month, year, td) {
  		var target = $(id);
  		if ($(td).hasClass(this._unselectableClass) || this._isDisabledDatepicker(target[0])) {
  			return;
  		}
  		var inst = this._getInst(target[0]);
  		inst.selectedDay = inst.currentDay = $('a', td).html();
  		inst.selectedMonth = inst.currentMonth = month;
  		inst.selectedYear = inst.currentYear = year;
  		this._selectDate(id, this._formatDate(inst,
  			inst.currentDay, inst.currentMonth, inst.currentYear));
  	}
docs: /* Action for selecting a day.