function selected(cal, date) {
	cal.sel.value = date;
	if (cal.dateClicked && (cal.sel.id.substr(0,5) == "datep"))
		cal.callCloseHandler();
}

function closeHandler(cal) {
	cal.hide();
	_dynarch_popupCalendar = null;
}

function showCalendar(id, format, showsTime, showsOtherMonths) {
	var el = document.getElementById(id);
	if (_dynarch_popupCalendar != null) {
		_dynarch_popupCalendar.hide();
	} else {
		var cal = new Calendar(1, null, selected, closeHandler);
		if (!format) {
			format = '%d.%m.%Y';
		}
		if (typeof showsTime == "string") {
			cal.showsTime = true;
			cal.time24 = (showsTime == "24");
		}
		if (showsOtherMonths) {
			cal.showsOtherMonths = true;
		}
		_dynarch_popupCalendar = cal;
		cal.setRange(1900, 2070);
		cal.create();
	}
	_dynarch_popupCalendar.setDateFormat(format);
	_dynarch_popupCalendar.parseDate(el.value);
	_dynarch_popupCalendar.sel = el;
	_dynarch_popupCalendar.showAtElement(el.nextSibling, "br");
	return false;
}

var MINUTE = 60 * 1000;
var HOUR = 60 * MINUTE;
var DAY = 24 * HOUR;
var WEEK = 7 * DAY;

function isDisabled(date) {
	var today = new Date();
	return (Math.abs(date.getTime() - today.getTime()) / DAY) > 10;
}