* @param callback the callback to call once a date has been selected

	 */

	SetDateWindow(WindowDesc *desc, WindowNumber window_number, Window *parent, TimerGameCalendar::Date initial_date, TimerGameCalendar::Year min_year, TimerGameCalendar::Year max_year, SetDateCallback *callback, void *callback_data) :

			Window(desc),

			callback(callback),

			callback_data(callback_data),

	{

		assert(this->min_year <= this->max_year);

		this->parent = parent;

		this->InitNested(window_number);

		if (initial_date == 0) initial_date = TimerGameCalendar::date;