comparison public/javascripts/calendar/.svn/text-base/calendar.js.svn-base @ 0:513646585e45

* Import Redmine trunk SVN rev 3859

+/*  Copyright Mihai Bazon, 2002-2005  |  www.bazon.net/mishoo
+ * -----------------------------------------------------------
+ *
+ * The DHTML Calendar, version 1.0 "It is happening again"
+ *
+ * Details and latest version at:
+ * www.dynarch.com/projects/calendar
+ *
+ * This script is developed by Dynarch.com.  Visit us at www.dynarch.com.
+ *
+ * This script is distributed under the GNU Lesser General Public License.
+ * Read the entire license text here: http://www.gnu.org/licenses/lgpl.html
+ */
+
+// $Id: calendar.js,v 1.51 2005/03/07 16:44:31 mishoo Exp $
+
+/** The Calendar object constructor. */
+Calendar = function (firstDayOfWeek, dateStr, onSelected, onClose) {
+	// member variables
+	this.activeDiv = null;
+	this.currentDateEl = null;
+	this.getDateStatus = null;
+	this.getDateToolTip = null;
+	this.getDateText = null;
+	this.timeout = null;
+	this.onSelected = onSelected || null;
+	this.onClose = onClose || null;
+	this.dragging = false;
+	this.hidden = false;
+	this.minYear = 1970;
+	this.maxYear = 2050;
+	this.dateFormat = Calendar._TT["DEF_DATE_FORMAT"];
+	this.ttDateFormat = Calendar._TT["TT_DATE_FORMAT"];
+	this.isPopup = true;
+	this.weekNumbers = true;
+	this.firstDayOfWeek = typeof firstDayOfWeek == "number" ? firstDayOfWeek : Calendar._FD; // 0 for Sunday, 1 for Monday, etc.
+	this.showsOtherMonths = false;
+	this.dateStr = dateStr;
+	this.ar_days = null;
+	this.showsTime = false;
+	this.time24 = true;
+	this.yearStep = 2;
+	this.hiliteToday = true;
+	this.multiple = null;
+	// HTML elements
+	this.table = null;
+	this.element = null;
+	this.tbody = null;
+	this.firstdayname = null;
+	// Combo boxes
+	this.monthsCombo = null;
+	this.yearsCombo = null;
+	this.hilitedMonth = null;
+	this.activeMonth = null;
+	this.hilitedYear = null;
+	this.activeYear = null;
+	// Information
+	this.dateClicked = false;
+
+	// one-time initializations
+	if (typeof Calendar._SDN == "undefined") {
+		// table of short day names
+		if (typeof Calendar._SDN_len == "undefined")
+			Calendar._SDN_len = 3;
+		var ar = new Array();
+		for (var i = 8; i > 0;) {
+			ar[--i] = Calendar._DN[i].substr(0, Calendar._SDN_len);
+		}
+		Calendar._SDN = ar;
+		// table of short month names
+		if (typeof Calendar._SMN_len == "undefined")
+			Calendar._SMN_len = 3;
+		ar = new Array();
+		for (var i = 12; i > 0;) {
+			ar[--i] = Calendar._MN[i].substr(0, Calendar._SMN_len);
+		}
+		Calendar._SMN = ar;
+	}
+};
+
+// ** constants
+
+/// "static", needed for event handlers.
+Calendar._C = null;
+
+/// detect a special case of "web browser"
+Calendar.is_ie = ( /msie/i.test(navigator.userAgent) &&
+		   !/opera/i.test(navigator.userAgent) );
+
+Calendar.is_ie5 = ( Calendar.is_ie && /msie 5\.0/i.test(navigator.userAgent) );
+
+/// detect Opera browser
+Calendar.is_opera = /opera/i.test(navigator.userAgent);
+
+/// detect KHTML-based browsers
+Calendar.is_khtml = /Konqueror|Safari|KHTML/i.test(navigator.userAgent);
+
+// BEGIN: UTILITY FUNCTIONS; beware that these might be moved into a separate
+//        library, at some point.
+
+Calendar.getAbsolutePos = function(el) {
+	var SL = 0, ST = 0;
+	var is_div = /^div$/i.test(el.tagName);
+	if (is_div && el.scrollLeft)
+		SL = el.scrollLeft;
+	if (is_div && el.scrollTop)
+		ST = el.scrollTop;
+	var r = { x: el.offsetLeft - SL, y: el.offsetTop - ST };
+	if (el.offsetParent) {
+		var tmp = this.getAbsolutePos(el.offsetParent);
+		r.x += tmp.x;
+		r.y += tmp.y;
+	}
+	return r;
+};
+
+Calendar.isRelated = function (el, evt) {
+	var related = evt.relatedTarget;
+	if (!related) {
+		var type = evt.type;
+		if (type == "mouseover") {
+			related = evt.fromElement;
+		} else if (type == "mouseout") {
+			related = evt.toElement;
+		}
+	}
+	while (related) {
+		if (related == el) {
+			return true;
+		}
+		related = related.parentNode;
+	}
+	return false;
+};
+
+Calendar.removeClass = function(el, className) {
+	if (!(el && el.className)) {
+		return;
+	}
+	var cls = el.className.split(" ");
+	var ar = new Array();
+	for (var i = cls.length; i > 0;) {
+		if (cls[--i] != className) {
+			ar[ar.length] = cls[i];
+		}
+	}
+	el.className = ar.join(" ");
+};
+
+Calendar.addClass = function(el, className) {
+	Calendar.removeClass(el, className);
+	el.className += " " + className;
+};
+
+// FIXME: the following 2 functions totally suck, are useless and should be replaced immediately.
+Calendar.getElement = function(ev) {
+	var f = Calendar.is_ie ? window.event.srcElement : ev.currentTarget;
+	while (f.nodeType != 1 || /^div$/i.test(f.tagName))
+		f = f.parentNode;
+	return f;
+};
+
+Calendar.getTargetElement = function(ev) {
+	var f = Calendar.is_ie ? window.event.srcElement : ev.target;
+	while (f.nodeType != 1)
+		f = f.parentNode;
+	return f;
+};
+
+Calendar.stopEvent = function(ev) {
+	ev || (ev = window.event);
+	if (Calendar.is_ie) {
+		ev.cancelBubble = true;
+		ev.returnValue = false;
+	} else {
+		ev.preventDefault();
+		ev.stopPropagation();
+	}
+	return false;
+};
+
+Calendar.addEvent = function(el, evname, func) {
+	if (el.attachEvent) { // IE
+		el.attachEvent("on" + evname, func);
+	} else if (el.addEventListener) { // Gecko / W3C
+		el.addEventListener(evname, func, true);
+	} else {
+		el["on" + evname] = func;
+	}
+};
+
+Calendar.removeEvent = function(el, evname, func) {
+	if (el.detachEvent) { // IE
+		el.detachEvent("on" + evname, func);
+	} else if (el.removeEventListener) { // Gecko / W3C
+		el.removeEventListener(evname, func, true);
+	} else {
+		el["on" + evname] = null;
+	}
+};
+
+Calendar.createElement = function(type, parent) {
+	var el = null;
+	if (document.createElementNS) {
+		// use the XHTML namespace; IE won't normally get here unless
+		// _they_ "fix" the DOM2 implementation.
+		el = document.createElementNS("http://www.w3.org/1999/xhtml", type);
+	} else {
+		el = document.createElement(type);
+	}
+	if (typeof parent != "undefined") {
+		parent.appendChild(el);
+	}
+	return el;
+};
+
+// END: UTILITY FUNCTIONS
+
+// BEGIN: CALENDAR STATIC FUNCTIONS
+
+/** Internal -- adds a set of events to make some element behave like a button. */
+Calendar._add_evs = function(el) {
+	with (Calendar) {
+		addEvent(el, "mouseover", dayMouseOver);
+		addEvent(el, "mousedown", dayMouseDown);
+		addEvent(el, "mouseout", dayMouseOut);
+		if (is_ie) {
+			addEvent(el, "dblclick", dayMouseDblClick);
+			el.setAttribute("unselectable", true);
+		}
+	}
+};
+
+Calendar.findMonth = function(el) {
+	if (typeof el.month != "undefined") {
+		return el;
+	} else if (typeof el.parentNode.month != "undefined") {
+		return el.parentNode;
+	}
+	return null;
+};
+
+Calendar.findYear = function(el) {
+	if (typeof el.year != "undefined") {
+		return el;
+	} else if (typeof el.parentNode.year != "undefined") {
+		return el.parentNode;
+	}
+	return null;
+};
+
+Calendar.showMonthsCombo = function () {
+	var cal = Calendar._C;
+	if (!cal) {
+		return false;
+	}
+	var cal = cal;
+	var cd = cal.activeDiv;
+	var mc = cal.monthsCombo;
+	if (cal.hilitedMonth) {
+		Calendar.removeClass(cal.hilitedMonth, "hilite");
+	}
+	if (cal.activeMonth) {
+		Calendar.removeClass(cal.activeMonth, "active");
+	}
+	var mon = cal.monthsCombo.getElementsByTagName("div")[cal.date.getMonth()];
+	Calendar.addClass(mon, "active");
+	cal.activeMonth = mon;
+	var s = mc.style;
+	s.display = "block";
+	if (cd.navtype < 0)
+		s.left = cd.offsetLeft + "px";
+	else {
+		var mcw = mc.offsetWidth;
+		if (typeof mcw == "undefined")
+			// Konqueror brain-dead techniques
+			mcw = 50;
+		s.left = (cd.offsetLeft + cd.offsetWidth - mcw) + "px";
+	}
+	s.top = (cd.offsetTop + cd.offsetHeight) + "px";
+};
+
+Calendar.showYearsCombo = function (fwd) {
+	var cal = Calendar._C;
+	if (!cal) {
+		return false;
+	}
+	var cal = cal;
+	var cd = cal.activeDiv;
+	var yc = cal.yearsCombo;
+	if (cal.hilitedYear) {
+		Calendar.removeClass(cal.hilitedYear, "hilite");
+	}
+	if (cal.activeYear) {
+		Calendar.removeClass(cal.activeYear, "active");
+	}
+	cal.activeYear = null;
+	var Y = cal.date.getFullYear() + (fwd ? 1 : -1);
+	var yr = yc.firstChild;
+	var show = false;
+	for (var i = 12; i > 0; --i) {
+		if (Y >= cal.minYear && Y <= cal.maxYear) {
+			yr.innerHTML = Y;
+			yr.year = Y;
+			yr.style.display = "block";
+			show = true;
+		} else {
+			yr.style.display = "none";
+		}
+		yr = yr.nextSibling;
+		Y += fwd ? cal.yearStep : -cal.yearStep;
+	}
+	if (show) {
+		var s = yc.style;
+		s.display = "block";
+		if (cd.navtype < 0)
+			s.left = cd.offsetLeft + "px";
+		else {
+			var ycw = yc.offsetWidth;
+			if (typeof ycw == "undefined")
+				// Konqueror brain-dead techniques
+				ycw = 50;
+			s.left = (cd.offsetLeft + cd.offsetWidth - ycw) + "px";
+		}
+		s.top = (cd.offsetTop + cd.offsetHeight) + "px";
+	}
+};
+
+// event handlers
+
+Calendar.tableMouseUp = function(ev) {
+	var cal = Calendar._C;
+	if (!cal) {
+		return false;
+	}
+	if (cal.timeout) {
+		clearTimeout(cal.timeout);
+	}
+	var el = cal.activeDiv;
+	if (!el) {
+		return false;
+	}
+	var target = Calendar.getTargetElement(ev);
+	ev || (ev = window.event);
+	Calendar.removeClass(el, "active");
+	if (target == el || target.parentNode == el) {
+		Calendar.cellClick(el, ev);
+	}
+	var mon = Calendar.findMonth(target);
+	var date = null;
+	if (mon) {
+		date = new Date(cal.date);
+		if (mon.month != date.getMonth()) {
+			date.setMonth(mon.month);
+			cal.setDate(date);
+			cal.dateClicked = false;
+			cal.callHandler();
+		}
+	} else {
+		var year = Calendar.findYear(target);
+		if (year) {
+			date = new Date(cal.date);
+			if (year.year != date.getFullYear()) {
+				date.setFullYear(year.year);
+				cal.setDate(date);
+				cal.dateClicked = false;
+				cal.callHandler();
+			}
+		}
+	}
+	with (Calendar) {
+		removeEvent(document, "mouseup", tableMouseUp);
+		removeEvent(document, "mouseover", tableMouseOver);
+		removeEvent(document, "mousemove", tableMouseOver);
+		cal._hideCombos();
+		_C = null;
+		return stopEvent(ev);
+	}
+};
+
+Calendar.tableMouseOver = function (ev) {
+	var cal = Calendar._C;
+	if (!cal) {
+		return;
+	}
+	var el = cal.activeDiv;
+	var target = Calendar.getTargetElement(ev);
+	if (target == el || target.parentNode == el) {
+		Calendar.addClass(el, "hilite active");
+		Calendar.addClass(el.parentNode, "rowhilite");
+	} else {
+		if (typeof el.navtype == "undefined" || (el.navtype != 50 && (el.navtype == 0 || Math.abs(el.navtype) > 2)))
+			Calendar.removeClass(el, "active");
+		Calendar.removeClass(el, "hilite");
+		Calendar.removeClass(el.parentNode, "rowhilite");
+	}
+	ev || (ev = window.event);
+	if (el.navtype == 50 && target != el) {
+		var pos = Calendar.getAbsolutePos(el);
+		var w = el.offsetWidth;
+		var x = ev.clientX;
+		var dx;
+		var decrease = true;
+		if (x > pos.x + w) {
+			dx = x - pos.x - w;
+			decrease = false;
+		} else
+			dx = pos.x - x;
+
+		if (dx < 0) dx = 0;
+		var range = el._range;
+		var current = el._current;
+		var count = Math.floor(dx / 10) % range.length;
+		for (var i = range.length; --i >= 0;)
+			if (range[i] == current)
+				break;
+		while (count-- > 0)
+			if (decrease) {
+				if (--i < 0)
+					i = range.length - 1;
+			} else if ( ++i >= range.length )
+				i = 0;
+		var newval = range[i];
+		el.innerHTML = newval;
+
+		cal.onUpdateTime();
+	}
+	var mon = Calendar.findMonth(target);
+	if (mon) {
+		if (mon.month != cal.date.getMonth()) {
+			if (cal.hilitedMonth) {
+				Calendar.removeClass(cal.hilitedMonth, "hilite");
+			}
+			Calendar.addClass(mon, "hilite");
+			cal.hilitedMonth = mon;
+		} else if (cal.hilitedMonth) {
+			Calendar.removeClass(cal.hilitedMonth, "hilite");
+		}
+	} else {
+		if (cal.hilitedMonth) {
+			Calendar.removeClass(cal.hilitedMonth, "hilite");
+		}
+		var year = Calendar.findYear(target);
+		if (year) {
+			if (year.year != cal.date.getFullYear()) {
+				if (cal.hilitedYear) {
+					Calendar.removeClass(cal.hilitedYear, "hilite");
+				}
+				Calendar.addClass(year, "hilite");
+				cal.hilitedYear = year;
+			} else if (cal.hilitedYear) {
+				Calendar.removeClass(cal.hilitedYear, "hilite");
+			}
+		} else if (cal.hilitedYear) {
+			Calendar.removeClass(cal.hilitedYear, "hilite");
+		}
+	}
+	return Calendar.stopEvent(ev);
+};
+
+Calendar.tableMouseDown = function (ev) {
+	if (Calendar.getTargetElement(ev) == Calendar.getElement(ev)) {
+		return Calendar.stopEvent(ev);
+	}
+};
+
+Calendar.calDragIt = function (ev) {
+	var cal = Calendar._C;
+	if (!(cal && cal.dragging)) {
+		return false;
+	}
+	var posX;
+	var posY;
+	if (Calendar.is_ie) {
+		posY = window.event.clientY + document.body.scrollTop;
+		posX = window.event.clientX + document.body.scrollLeft;
+	} else {
+		posX = ev.pageX;
+		posY = ev.pageY;
+	}
+	cal.hideShowCovered();
+	var st = cal.element.style;
+	st.left = (posX - cal.xOffs) + "px";
+	st.top = (posY - cal.yOffs) + "px";
+	return Calendar.stopEvent(ev);
+};
+
+Calendar.calDragEnd = function (ev) {
+	var cal = Calendar._C;
+	if (!cal) {
+		return false;
+	}
+	cal.dragging = false;
+	with (Calendar) {
+		removeEvent(document, "mousemove", calDragIt);
+		removeEvent(document, "mouseup", calDragEnd);
+		tableMouseUp(ev);
+	}
+	cal.hideShowCovered();
+};
+
+Calendar.dayMouseDown = function(ev) {
+	var el = Calendar.getElement(ev);
+	if (el.disabled) {
+		return false;
+	}
+	var cal = el.calendar;
+	cal.activeDiv = el;
+	Calendar._C = cal;
+	if (el.navtype != 300) with (Calendar) {
+		if (el.navtype == 50) {
+			el._current = el.innerHTML;
+			addEvent(document, "mousemove", tableMouseOver);
+		} else
+			addEvent(document, Calendar.is_ie5 ? "mousemove" : "mouseover", tableMouseOver);
+		addClass(el, "hilite active");
+		addEvent(document, "mouseup", tableMouseUp);
+	} else if (cal.isPopup) {
+		cal._dragStart(ev);
+	}
+	if (el.navtype == -1 || el.navtype == 1) {
+		if (cal.timeout) clearTimeout(cal.timeout);
+		cal.timeout = setTimeout("Calendar.showMonthsCombo()", 250);
+	} else if (el.navtype == -2 || el.navtype == 2) {
+		if (cal.timeout) clearTimeout(cal.timeout);
+		cal.timeout = setTimeout((el.navtype > 0) ? "Calendar.showYearsCombo(true)" : "Calendar.showYearsCombo(false)", 250);
+	} else {
+		cal.timeout = null;
+	}
+	return Calendar.stopEvent(ev);
+};
+
+Calendar.dayMouseDblClick = function(ev) {
+	Calendar.cellClick(Calendar.getElement(ev), ev || window.event);
+	if (Calendar.is_ie) {
+		document.selection.empty();
+	}
+};
+
+Calendar.dayMouseOver = function(ev) {
+	var el = Calendar.getElement(ev);
+	if (Calendar.isRelated(el, ev) || Calendar._C || el.disabled) {
+		return false;
+	}
+	if (el.ttip) {
+		if (el.ttip.substr(0, 1) == "_") {
+			el.ttip = el.caldate.print(el.calendar.ttDateFormat) + el.ttip.substr(1);
+		}
+		el.calendar.tooltips.innerHTML = el.ttip;
+	}
+	if (el.navtype != 300) {
+		Calendar.addClass(el, "hilite");
+		if (el.caldate) {
+			Calendar.addClass(el.parentNode, "rowhilite");
+		}
+	}
+	return Calendar.stopEvent(ev);
+};
+
+Calendar.dayMouseOut = function(ev) {
+	with (Calendar) {
+		var el = getElement(ev);
+		if (isRelated(el, ev) || _C || el.disabled)
+			return false;
+		removeClass(el, "hilite");
+		if (el.caldate)
+			removeClass(el.parentNode, "rowhilite");
+		if (el.calendar)
+			el.calendar.tooltips.innerHTML = _TT["SEL_DATE"];
+		return stopEvent(ev);
+	}
+};
+
+/**
+ *  A generic "click" handler :) handles all types of buttons defined in this
+ *  calendar.
+ */
+Calendar.cellClick = function(el, ev) {
+	var cal = el.calendar;
+	var closing = false;
+	var newdate = false;
+	var date = null;
+	if (typeof el.navtype == "undefined") {
+		if (cal.currentDateEl) {
+			Calendar.removeClass(cal.currentDateEl, "selected");
+			Calendar.addClass(el, "selected");
+			closing = (cal.currentDateEl == el);
+			if (!closing) {
+				cal.currentDateEl = el;
+			}
+		}
+		cal.date.setDateOnly(el.caldate);
+		date = cal.date;
+		var other_month = !(cal.dateClicked = !el.otherMonth);
+		if (!other_month && !cal.currentDateEl)
+			cal._toggleMultipleDate(new Date(date));
+		else
+			newdate = !el.disabled;
+		// a date was clicked
+		if (other_month)
+			cal._init(cal.firstDayOfWeek, date);
+	} else {
+		if (el.navtype == 200) {
+			Calendar.removeClass(el, "hilite");
+			cal.callCloseHandler();
+			return;
+		}
+		date = new Date(cal.date);
+		if (el.navtype == 0)
+			date.setDateOnly(new Date()); // TODAY
+		// unless "today" was clicked, we assume no date was clicked so
+		// the selected handler will know not to close the calenar when
+		// in single-click mode.
+		// cal.dateClicked = (el.navtype == 0);
+		cal.dateClicked = false;
+		var year = date.getFullYear();
+		var mon = date.getMonth();
+		function setMonth(m) {
+			var day = date.getDate();
+			var max = date.getMonthDays(m);
+			if (day > max) {
+				date.setDate(max);
+			}
+			date.setMonth(m);
+		};
+		switch (el.navtype) {
+		    case 400:
+			Calendar.removeClass(el, "hilite");
+			var text = Calendar._TT["ABOUT"];
+			if (typeof text != "undefined") {
+				text += cal.showsTime ? Calendar._TT["ABOUT_TIME"] : "";
+			} else {
+				// FIXME: this should be removed as soon as lang files get updated!
+				text = "Help and about box text is not translated into this language.\n" +
+					"If you know this language and you feel generous please update\n" +
+					"the corresponding file in \"lang\" subdir to match calendar-en.js\n" +
+					"and send it back to <[e-mail]> to get it into the distribution  ;-)\n\n" +
+					"Thank you!\n" +
+					"http://dynarch.com/mishoo/calendar.epl\n";
+			}
+			alert(text);
+			return;
+		    case -2:
+			if (year > cal.minYear) {
+				date.setFullYear(year - 1);
+			}
+			break;
+		    case -1:
+			if (mon > 0) {
+				setMonth(mon - 1);
+			} else if (year-- > cal.minYear) {
+				date.setFullYear(year);
+				setMonth(11);
+			}
+			break;
+		    case 1:
+			if (mon < 11) {
+				setMonth(mon + 1);
+			} else if (year < cal.maxYear) {
+				date.setFullYear(year + 1);
+				setMonth(0);
+			}
+			break;
+		    case 2:
+			if (year < cal.maxYear) {
+				date.setFullYear(year + 1);
+			}
+			break;
+		    case 100:
+			cal.setFirstDayOfWeek(el.fdow);
+			return;
+		    case 50:
+			var range = el._range;
+			var current = el.innerHTML;
+			for (var i = range.length; --i >= 0;)
+				if (range[i] == current)
+					break;
+			if (ev && ev.shiftKey) {
+				if (--i < 0)
+					i = range.length - 1;
+			} else if ( ++i >= range.length )
+				i = 0;
+			var newval = range[i];
+			el.innerHTML = newval;
+			cal.onUpdateTime();
+			return;
+		    case 0:
+			// TODAY will bring us here
+			if ((typeof cal.getDateStatus == "function") &&
+			    cal.getDateStatus(date, date.getFullYear(), date.getMonth(), date.getDate())) {
+				return false;
+			}
+			break;
+		}
+		if (!date.equalsTo(cal.date)) {
+			cal.setDate(date);
+			newdate = true;
+		} else if (el.navtype == 0)
+			newdate = closing = true;
+	}
+	if (newdate) {
+		ev && cal.callHandler();
+	}
+	if (closing) {
+		Calendar.removeClass(el, "hilite");
+		ev && cal.callCloseHandler();
+	}
+};
+
+// END: CALENDAR STATIC FUNCTIONS
+
+// BEGIN: CALENDAR OBJECT FUNCTIONS
+
+/**
+ *  This function creates the calendar inside the given parent.  If _par is
+ *  null than it creates a popup calendar inside the BODY element.  If _par is
+ *  an element, be it BODY, then it creates a non-popup calendar (still
+ *  hidden).  Some properties need to be set before calling this function.
+ */
+Calendar.prototype.create = function (_par) {
+	var parent = null;
+	if (! _par) {
+		// default parent is the document body, in which case we create
+		// a popup calendar.
+		parent = document.getElementsByTagName("body")[0];
+		this.isPopup = true;
+	} else {
+		parent = _par;
+		this.isPopup = false;
+	}
+	this.date = this.dateStr ? new Date(this.dateStr) : new Date();
+
+	var table = Calendar.createElement("table");
+	this.table = table;
+	table.cellSpacing = 0;
+	table.cellPadding = 0;
+	table.calendar = this;
+	Calendar.addEvent(table, "mousedown", Calendar.tableMouseDown);
+
+	var div = Calendar.createElement("div");
+	this.element = div;
+	div.className = "calendar";
+	if (this.isPopup) {
+		div.style.position = "absolute";
+		div.style.display = "none";
+	}
+	div.appendChild(table);
+
+	var thead = Calendar.createElement("thead", table);
+	var cell = null;
+	var row = null;
+
+	var cal = this;
+	var hh = function (text, cs, navtype) {
+		cell = Calendar.createElement("td", row);
+		cell.colSpan = cs;
+		cell.className = "button";
+		if (navtype != 0 && Math.abs(navtype) <= 2)
+			cell.className += " nav";
+		Calendar._add_evs(cell);
+		cell.calendar = cal;
+		cell.navtype = navtype;
+		cell.innerHTML = "<div unselectable='on'>" + text + "</div>";
+		return cell;
+	};
+
+	row = Calendar.createElement("tr", thead);
+	var title_length = 6;
+	(this.isPopup) && --title_length;
+	(this.weekNumbers) && ++title_length;
+
+	hh("?", 1, 400).ttip = Calendar._TT["INFO"];
+	this.title = hh("", title_length, 300);
+	this.title.className = "title";
+	if (this.isPopup) {
+		this.title.ttip = Calendar._TT["DRAG_TO_MOVE"];
+		this.title.style.cursor = "move";
+		hh("&#x00d7;", 1, 200).ttip = Calendar._TT["CLOSE"];
+	}
+
+	row = Calendar.createElement("tr", thead);
+	row.className = "headrow";
+
+	this._nav_py = hh("&#x00ab;", 1, -2);
+	this._nav_py.ttip = Calendar._TT["PREV_YEAR"];
+
+	this._nav_pm = hh("&#x2039;", 1, -1);
+	this._nav_pm.ttip = Calendar._TT["PREV_MONTH"];
+
+	this._nav_now = hh(Calendar._TT["TODAY"], this.weekNumbers ? 4 : 3, 0);
+	this._nav_now.ttip = Calendar._TT["GO_TODAY"];
+
+	this._nav_nm = hh("&#x203a;", 1, 1);
+	this._nav_nm.ttip = Calendar._TT["NEXT_MONTH"];
+
+	this._nav_ny = hh("&#x00bb;", 1, 2);
+	this._nav_ny.ttip = Calendar._TT["NEXT_YEAR"];
+
+	// day names
+	row = Calendar.createElement("tr", thead);
+	row.className = "daynames";
+	if (this.weekNumbers) {
+		cell = Calendar.createElement("td", row);
+		cell.className = "name wn";
+		cell.innerHTML = Calendar._TT["WK"];
+	}
+	for (var i = 7; i > 0; --i) {
+		cell = Calendar.createElement("td", row);
+		if (!i) {
+			cell.navtype = 100;
+			cell.calendar = this;
+			Calendar._add_evs(cell);
+		}
+	}
+	this.firstdayname = (this.weekNumbers) ? row.firstChild.nextSibling : row.firstChild;
+	this._displayWeekdays();
+
+	var tbody = Calendar.createElement("tbody", table);
+	this.tbody = tbody;
+
+	for (i = 6; i > 0; --i) {
+		row = Calendar.createElement("tr", tbody);
+		if (this.weekNumbers) {
+			cell = Calendar.createElement("td", row);
+		}
+		for (var j = 7; j > 0; --j) {
+			cell = Calendar.createElement("td", row);
+			cell.calendar = this;
+			Calendar._add_evs(cell);
+		}
+	}
+
+	if (this.showsTime) {
+		row = Calendar.createElement("tr", tbody);
+		row.className = "time";
+
+		cell = Calendar.createElement("td", row);
+		cell.className = "time";
+		cell.colSpan = 2;
+		cell.innerHTML = Calendar._TT["TIME"] || "&nbsp;";
+
+		cell = Calendar.createElement("td", row);
+		cell.className = "time";
+		cell.colSpan = this.weekNumbers ? 4 : 3;
+
+		(function(){
+			function makeTimePart(className, init, range_start, range_end) {
+				var part = Calendar.createElement("span", cell);
+				part.className = className;
+				part.innerHTML = init;
+				part.calendar = cal;
+				part.ttip = Calendar._TT["TIME_PART"];
+				part.navtype = 50;
+				part._range = [];
+				if (typeof range_start != "number")
+					part._range = range_start;
+				else {
+					for (var i = range_start; i <= range_end; ++i) {
+						var txt;
+						if (i < 10 && range_end >= 10) txt = '0' + i;
+						else txt = '' + i;
+						part._range[part._range.length] = txt;
+					}
+				}
+				Calendar._add_evs(part);
+				return part;
+			};
+			var hrs = cal.date.getHours();
+			var mins = cal.date.getMinutes();
+			var t12 = !cal.time24;
+			var pm = (hrs > 12);
+			if (t12 && pm) hrs -= 12;
+			var H = makeTimePart("hour", hrs, t12 ? 1 : 0, t12 ? 12 : 23);
+			var span = Calendar.createElement("span", cell);
+			span.innerHTML = ":";
+			span.className = "colon";
+			var M = makeTimePart("minute", mins, 0, 59);
+			var AP = null;
+			cell = Calendar.createElement("td", row);
+			cell.className = "time";
+			cell.colSpan = 2;
+			if (t12)
+				AP = makeTimePart("ampm", pm ? "pm" : "am", ["am", "pm"]);
+			else
+				cell.innerHTML = "&nbsp;";
+
+			cal.onSetTime = function() {
+				var pm, hrs = this.date.getHours(),
+					mins = this.date.getMinutes();
+				if (t12) {
+					pm = (hrs >= 12);
+					if (pm) hrs -= 12;
+					if (hrs == 0) hrs = 12;
+					AP.innerHTML = pm ? "pm" : "am";
+				}
+				H.innerHTML = (hrs < 10) ? ("0" + hrs) : hrs;
+				M.innerHTML = (mins < 10) ? ("0" + mins) : mins;
+			};
+
+			cal.onUpdateTime = function() {
+				var date = this.date;
+				var h = parseInt(H.innerHTML, 10);
+				if (t12) {
+					if (/pm/i.test(AP.innerHTML) && h < 12)
+						h += 12;
+					else if (/am/i.test(AP.innerHTML) && h == 12)
+						h = 0;
+				}
+				var d = date.getDate();
+				var m = date.getMonth();
+				var y = date.getFullYear();
+				date.setHours(h);
+				date.setMinutes(parseInt(M.innerHTML, 10));
+				date.setFullYear(y);
+				date.setMonth(m);
+				date.setDate(d);
+				this.dateClicked = false;
+				this.callHandler();
+			};
+		})();
+	} else {
+		this.onSetTime = this.onUpdateTime = function() {};
+	}
+
+	var tfoot = Calendar.createElement("tfoot", table);
+
+	row = Calendar.createElement("tr", tfoot);
+	row.className = "footrow";
+
+	cell = hh(Calendar._TT["SEL_DATE"], this.weekNumbers ? 8 : 7, 300);
+	cell.className = "ttip";
+	if (this.isPopup) {
+		cell.ttip = Calendar._TT["DRAG_TO_MOVE"];
+		cell.style.cursor = "move";
+	}
+	this.tooltips = cell;
+
+	div = Calendar.createElement("div", this.element);
+	this.monthsCombo = div;
+	div.className = "combo";
+	for (i = 0; i < Calendar._MN.length; ++i) {
+		var mn = Calendar.createElement("div");
+		mn.className = Calendar.is_ie ? "label-IEfix" : "label";
+		mn.month = i;
+		mn.innerHTML = Calendar._SMN[i];
+		div.appendChild(mn);
+	}
+
+	div = Calendar.createElement("div", this.element);
+	this.yearsCombo = div;
+	div.className = "combo";
+	for (i = 12; i > 0; --i) {
+		var yr = Calendar.createElement("div");
+		yr.className = Calendar.is_ie ? "label-IEfix" : "label";
+		div.appendChild(yr);
+	}
+
+	this._init(this.firstDayOfWeek, this.date);
+	parent.appendChild(this.element);
+};
+
+/** keyboard navigation, only for popup calendars */
+Calendar._keyEvent = function(ev) {
+	var cal = window._dynarch_popupCalendar;
+	if (!cal || cal.multiple)
+		return false;
+	(Calendar.is_ie) && (ev = window.event);
+	var act = (Calendar.is_ie || ev.type == "keypress"),
+		K = ev.keyCode;
+	if (ev.ctrlKey) {
+		switch (K) {
+		    case 37: // KEY left
+			act && Calendar.cellClick(cal._nav_pm);
+			break;
+		    case 38: // KEY up
+			act && Calendar.cellClick(cal._nav_py);
+			break;
+		    case 39: // KEY right
+			act && Calendar.cellClick(cal._nav_nm);
+			break;
+		    case 40: // KEY down
+			act && Calendar.cellClick(cal._nav_ny);
+			break;
+		    default:
+			return false;
+		}
+	} else switch (K) {
+	    case 32: // KEY space (now)
+		Calendar.cellClick(cal._nav_now);
+		break;
+	    case 27: // KEY esc
+		act && cal.callCloseHandler();
+		break;
+	    case 37: // KEY left
+	    case 38: // KEY up
+	    case 39: // KEY right
+	    case 40: // KEY down
+		if (act) {
+			var prev, x, y, ne, el, step;
+			prev = K == 37 || K == 38;
+			step = (K == 37 || K == 39) ? 1 : 7;
+			function setVars() {
+				el = cal.currentDateEl;
+				var p = el.pos;
+				x = p & 15;
+				y = p >> 4;
+				ne = cal.ar_days[y][x];
+			};setVars();
+			function prevMonth() {
+				var date = new Date(cal.date);
+				date.setDate(date.getDate() - step);
+				cal.setDate(date);
+			};
+			function nextMonth() {
+				var date = new Date(cal.date);
+				date.setDate(date.getDate() + step);
+				cal.setDate(date);
+			};
+			while (1) {
+				switch (K) {
+				    case 37: // KEY left
+					if (--x >= 0)
+						ne = cal.ar_days[y][x];
+					else {
+						x = 6;
+						K = 38;
+						continue;
+					}
+					break;
+				    case 38: // KEY up
+					if (--y >= 0)
+						ne = cal.ar_days[y][x];
+					else {
+						prevMonth();
+						setVars();
+					}
+					break;
+				    case 39: // KEY right
+					if (++x < 7)
+						ne = cal.ar_days[y][x];
+					else {
+						x = 0;
+						K = 40;
+						continue;
+					}
+					break;
+				    case 40: // KEY down
+					if (++y < cal.ar_days.length)
+						ne = cal.ar_days[y][x];
+					else {
+						nextMonth();
+						setVars();
+					}
+					break;
+				}
+				break;
+			}
+			if (ne) {
+				if (!ne.disabled)
+					Calendar.cellClick(ne);
+				else if (prev)
+					prevMonth();
+				else
+					nextMonth();
+			}
+		}
+		break;
+	    case 13: // KEY enter
+		if (act)
+			Calendar.cellClick(cal.currentDateEl, ev);
+		break;
+	    default:
+		return false;
+	}
+	return Calendar.stopEvent(ev);
+};
+
+/**
+ *  (RE)Initializes the calendar to the given date and firstDayOfWeek
+ */
+Calendar.prototype._init = function (firstDayOfWeek, date) {
+	var today = new Date(),
+		TY = today.getFullYear(),
+		TM = today.getMonth(),
+		TD = today.getDate();
+	this.table.style.visibility = "hidden";
+	var year = date.getFullYear();
+	if (year < this.minYear) {
+		year = this.minYear;
+		date.setFullYear(year);
+	} else if (year > this.maxYear) {
+		year = this.maxYear;
+		date.setFullYear(year);
+	}
+	this.firstDayOfWeek = firstDayOfWeek;
+	this.date = new Date(date);
+	var month = date.getMonth();
+	var mday = date.getDate();
+	var no_days = date.getMonthDays();
+
+	// calendar voodoo for computing the first day that would actually be
+	// displayed in the calendar, even if it's from the previous month.
+	// WARNING: this is magic. ;-)
+	date.setDate(1);
+	var day1 = (date.getDay() - this.firstDayOfWeek) % 7;
+	if (day1 < 0)
+		day1 += 7;
+	date.setDate(0-day1);
+	date.setDate(date.getDate() + 1);
+
+	var row = this.tbody.firstChild;
+	var MN = Calendar._SMN[month];
+	var ar_days = this.ar_days = new Array();
+	var weekend = Calendar._TT["WEEKEND"];
+	var dates = this.multiple ? (this.datesCells = {}) : null;
+	for (var i = 0; i < 6; ++i, row = row.nextSibling) {
+		var cell = row.firstChild;
+		if (this.weekNumbers) {
+			cell.className = "day wn";
+			cell.innerHTML = date.getWeekNumber();
+			cell = cell.nextSibling;
+		}
+		row.className = "daysrow";
+		var hasdays = false, iday, dpos = ar_days[i] = [];
+		for (var j = 0; j < 7; ++j, cell = cell.nextSibling, date.setDate(iday + 1)) {
+			iday = date.getDate();
+			var wday = date.getDay();
+			cell.className = "day";
+			cell.pos = i << 4 | j;
+			dpos[j] = cell;
+			var current_month = (date.getMonth() == month);
+			if (!current_month) {
+				if (this.showsOtherMonths) {
+					cell.className += " othermonth";
+					cell.otherMonth = true;
+				} else {
+					cell.className = "emptycell";
+					cell.innerHTML = "&nbsp;";
+					cell.disabled = true;
+					continue;
+				}
+			} else {
+				cell.otherMonth = false;
+				hasdays = true;
+			}
+			cell.disabled = false;
+			cell.innerHTML = this.getDateText ? this.getDateText(date, iday) : iday;
+			if (dates)
+				dates[date.print("%Y%m%d")] = cell;
+			if (this.getDateStatus) {
+				var status = this.getDateStatus(date, year, month, iday);
+				if (this.getDateToolTip) {
+					var toolTip = this.getDateToolTip(date, year, month, iday);
+					if (toolTip)
+						cell.title = toolTip;
+				}
+				if (status === true) {
+					cell.className += " disabled";
+					cell.disabled = true;
+				} else {
+					if (/disabled/i.test(status))
+						cell.disabled = true;
+					cell.className += " " + status;
+				}
+			}
+			if (!cell.disabled) {
+				cell.caldate = new Date(date);
+				cell.ttip = "_";
+				if (!this.multiple && current_month
+				    && iday == mday && this.hiliteToday) {
+					cell.className += " selected";
+					this.currentDateEl = cell;
+				}
+				if (date.getFullYear() == TY &&
+				    date.getMonth() == TM &&
+				    iday == TD) {
+					cell.className += " today";
+					cell.ttip += Calendar._TT["PART_TODAY"];
+				}
+				if (weekend.indexOf(wday.toString()) != -1)
+					cell.className += cell.otherMonth ? " oweekend" : " weekend";
+			}
+		}
+		if (!(hasdays || this.showsOtherMonths))
+			row.className = "emptyrow";
+	}
+	this.title.innerHTML = Calendar._MN[month] + ", " + year;
+	this.onSetTime();
+	this.table.style.visibility = "visible";
+	this._initMultipleDates();
+	// PROFILE
+	// this.tooltips.innerHTML = "Generated in " + ((new Date()) - today) + " ms";
+};
+
+Calendar.prototype._initMultipleDates = function() {
+	if (this.multiple) {
+		for (var i in this.multiple) {
+			var cell = this.datesCells[i];
+			var d = this.multiple[i];
+			if (!d)
+				continue;
+			if (cell)
+				cell.className += " selected";
+		}
+	}
+};
+
+Calendar.prototype._toggleMultipleDate = function(date) {
+	if (this.multiple) {
+		var ds = date.print("%Y%m%d");
+		var cell = this.datesCells[ds];
+		if (cell) {
+			var d = this.multiple[ds];
+			if (!d) {
+				Calendar.addClass(cell, "selected");
+				this.multiple[ds] = date;
+			} else {
+				Calendar.removeClass(cell, "selected");
+				delete this.multiple[ds];
+			}
+		}
+	}
+};
+
+Calendar.prototype.setDateToolTipHandler = function (unaryFunction) {
+	this.getDateToolTip = unaryFunction;
+};
+
+/**
+ *  Calls _init function above for going to a certain date (but only if the
+ *  date is different than the currently selected one).
+ */
+Calendar.prototype.setDate = function (date) {
+	if (!date.equalsTo(this.date)) {
+		this._init(this.firstDayOfWeek, date);
+	}
+};
+
+/**
+ *  Refreshes the calendar.  Useful if the "disabledHandler" function is
+ *  dynamic, meaning that the list of disabled date can change at runtime.
+ *  Just * call this function if you think that the list of disabled dates
+ *  should * change.
+ */
+Calendar.prototype.refresh = function () {
+	this._init(this.firstDayOfWeek, this.date);
+};
+
+/** Modifies the "firstDayOfWeek" parameter (pass 0 for Synday, 1 for Monday, etc.). */
+Calendar.prototype.setFirstDayOfWeek = function (firstDayOfWeek) {
+	this._init(firstDayOfWeek, this.date);
+	this._displayWeekdays();
+};
+
+/**
+ *  Allows customization of what dates are enabled.  The "unaryFunction"
+ *  parameter must be a function object that receives the date (as a JS Date
+ *  object) and returns a boolean value.  If the returned value is true then
+ *  the passed date will be marked as disabled.
+ */
+Calendar.prototype.setDateStatusHandler = Calendar.prototype.setDisabledHandler = function (unaryFunction) {
+	this.getDateStatus = unaryFunction;
+};
+
+/** Customization of allowed year range for the calendar. */
+Calendar.prototype.setRange = function (a, z) {
+	this.minYear = a;
+	this.maxYear = z;
+};
+
+/** Calls the first user handler (selectedHandler). */
+Calendar.prototype.callHandler = function () {
+	if (this.onSelected) {
+		this.onSelected(this, this.date.print(this.dateFormat));
+	}
+};
+
+/** Calls the second user handler (closeHandler). */
+Calendar.prototype.callCloseHandler = function () {
+	if (this.onClose) {
+		this.onClose(this);
+	}
+	this.hideShowCovered();
+};
+
+/** Removes the calendar object from the DOM tree and destroys it. */
+Calendar.prototype.destroy = function () {
+	var el = this.element.parentNode;
+	el.removeChild(this.element);
+	Calendar._C = null;
+	window._dynarch_popupCalendar = null;
+};
+
+/**
+ *  Moves the calendar element to a different section in the DOM tree (changes
+ *  its parent).
+ */
+Calendar.prototype.reparent = function (new_parent) {
+	var el = this.element;
+	el.parentNode.removeChild(el);
+	new_parent.appendChild(el);
+};
+
+// This gets called when the user presses a mouse button anywhere in the
+// document, if the calendar is shown.  If the click was outside the open
+// calendar this function closes it.
+Calendar._checkCalendar = function(ev) {
+	var calendar = window._dynarch_popupCalendar;
+	if (!calendar) {
+		return false;
+	}
+	var el = Calendar.is_ie ? Calendar.getElement(ev) : Calendar.getTargetElement(ev);
+	for (; el != null && el != calendar.element; el = el.parentNode);
+	if (el == null) {
+		// calls closeHandler which should hide the calendar.
+		window._dynarch_popupCalendar.callCloseHandler();
+		return Calendar.stopEvent(ev);
+	}
+};
+
+/** Shows the calendar. */
+Calendar.prototype.show = function () {
+	var rows = this.table.getElementsByTagName("tr");
+	for (var i = rows.length; i > 0;) {
+		var row = rows[--i];
+		Calendar.removeClass(row, "rowhilite");
+		var cells = row.getElementsByTagName("td");
+		for (var j = cells.length; j > 0;) {
+			var cell = cells[--j];
+			Calendar.removeClass(cell, "hilite");
+			Calendar.removeClass(cell, "active");
+		}
+	}
+	this.element.style.display = "block";
+	this.hidden = false;
+	if (this.isPopup) {
+		window._dynarch_popupCalendar = this;
+		Calendar.addEvent(document, "keydown", Calendar._keyEvent);
+		Calendar.addEvent(document, "keypress", Calendar._keyEvent);
+		Calendar.addEvent(document, "mousedown", Calendar._checkCalendar);
+	}
+	this.hideShowCovered();
+};
+
+/**
+ *  Hides the calendar.  Also removes any "hilite" from the class of any TD
+ *  element.
+ */
+Calendar.prototype.hide = function () {
+	if (this.isPopup) {
+		Calendar.removeEvent(document, "keydown", Calendar._keyEvent);
+		Calendar.removeEvent(document, "keypress", Calendar._keyEvent);
+		Calendar.removeEvent(document, "mousedown", Calendar._checkCalendar);
+	}
+	this.element.style.display = "none";
+	this.hidden = true;
+	this.hideShowCovered();
+};
+
+/**
+ *  Shows the calendar at a given absolute position (beware that, depending on
+ *  the calendar element style -- position property -- this might be relative
+ *  to the parent's containing rectangle).
+ */
+Calendar.prototype.showAt = function (x, y) {
+	var s = this.element.style;
+	s.left = x + "px";
+	s.top = y + "px";
+	this.show();
+};
+
+/** Shows the calendar near a given element. */
+Calendar.prototype.showAtElement = function (el, opts) {
+	var self = this;
+	var p = Calendar.getAbsolutePos(el);
+	if (!opts || typeof opts != "string") {
+		this.showAt(p.x, p.y + el.offsetHeight);
+		return true;
+	}
+	function fixPosition(box) {
+		if (box.x < 0)
+			box.x = 0;
+		if (box.y < 0)
+			box.y = 0;
+		var cp = document.createElement("div");
+		var s = cp.style;
+		s.position = "absolute";
+		s.right = s.bottom = s.width = s.height = "0px";
+		document.body.appendChild(cp);
+		var br = Calendar.getAbsolutePos(cp);
+		document.body.removeChild(cp);
+		if (Calendar.is_ie) {
+			br.y += document.body.scrollTop;
+			br.x += document.body.scrollLeft;
+		} else {
+			br.y += window.scrollY;
+			br.x += window.scrollX;
+		}
+		var tmp = box.x + box.width - br.x;
+		if (tmp > 0) box.x -= tmp;
+		tmp = box.y + box.height - br.y;
+		if (tmp > 0) box.y -= tmp;
+	};
+	this.element.style.display = "block";
+	Calendar.continuation_for_the_fucking_khtml_browser = function() {
+		var w = self.element.offsetWidth;
+		var h = self.element.offsetHeight;
+		self.element.style.display = "none";
+		var valign = opts.substr(0, 1);
+		var halign = "l";
+		if (opts.length > 1) {
+			halign = opts.substr(1, 1);
+		}
+		// vertical alignment
+		switch (valign) {
+		    case "T": p.y -= h; break;
+		    case "B": p.y += el.offsetHeight; break;
+		    case "C": p.y += (el.offsetHeight - h) / 2; break;
+		    case "t": p.y += el.offsetHeight - h; break;
+		    case "b": break; // already there
+		}
+		// horizontal alignment
+		switch (halign) {
+		    case "L": p.x -= w; break;
+		    case "R": p.x += el.offsetWidth; break;
+		    case "C": p.x += (el.offsetWidth - w) / 2; break;
+		    case "l": p.x += el.offsetWidth - w; break;
+		    case "r": break; // already there
+		}
+		p.width = w;
+		p.height = h + 40;
+		self.monthsCombo.style.display = "none";
+		fixPosition(p);
+		self.showAt(p.x, p.y);
+	};
+	if (Calendar.is_khtml)
+		setTimeout("Calendar.continuation_for_the_fucking_khtml_browser()", 10);
+	else
+		Calendar.continuation_for_the_fucking_khtml_browser();
+};
+
+/** Customizes the date format. */
+Calendar.prototype.setDateFormat = function (str) {
+	this.dateFormat = str;
+};
+
+/** Customizes the tooltip date format. */
+Calendar.prototype.setTtDateFormat = function (str) {
+	this.ttDateFormat = str;
+};
+
+/**
+ *  Tries to identify the date represented in a string.  If successful it also
+ *  calls this.setDate which moves the calendar to the given date.
+ */
+Calendar.prototype.parseDate = function(str, fmt) {
+	if (!fmt)
+		fmt = this.dateFormat;
+	this.setDate(Date.parseDate(str, fmt));
+};
+
+Calendar.prototype.hideShowCovered = function () {
+	if (!Calendar.is_ie && !Calendar.is_opera)
+		return;
+	function getVisib(obj){
+		var value = obj.style.visibility;
+		if (!value) {
+			if (document.defaultView && typeof (document.defaultView.getComputedStyle) == "function") { // Gecko, W3C
+				if (!Calendar.is_khtml)
+					value = document.defaultView.
+						getComputedStyle(obj, "").getPropertyValue("visibility");
+				else
+					value = '';
+			} else if (obj.currentStyle) { // IE
+				value = obj.currentStyle.visibility;
+			} else
+				value = '';
+		}
+		return value;
+	};
+
+	var tags = new Array("applet", "iframe", "select");
+	var el = this.element;
+
+	var p = Calendar.getAbsolutePos(el);
+	var EX1 = p.x;
+	var EX2 = el.offsetWidth + EX1;
+	var EY1 = p.y;
+	var EY2 = el.offsetHeight + EY1;
+
+	for (var k = tags.length; k > 0; ) {
+		var ar = document.getElementsByTagName(tags[--k]);
+		var cc = null;
+
+		for (var i = ar.length; i > 0;) {
+			cc = ar[--i];
+
+			p = Calendar.getAbsolutePos(cc);
+			var CX1 = p.x;
+			var CX2 = cc.offsetWidth + CX1;
+			var CY1 = p.y;
+			var CY2 = cc.offsetHeight + CY1;
+
+			if (this.hidden || (CX1 > EX2) || (CX2 < EX1) || (CY1 > EY2) || (CY2 < EY1)) {
+				if (!cc.__msh_save_visibility) {
+					cc.__msh_save_visibility = getVisib(cc);
+				}
+				cc.style.visibility = cc.__msh_save_visibility;
+			} else {
+				if (!cc.__msh_save_visibility) {
+					cc.__msh_save_visibility = getVisib(cc);
+				}
+				cc.style.visibility = "hidden";
+			}
+		}
+	}
+};
+
+/** Internal function; it displays the bar with the names of the weekday. */
+Calendar.prototype._displayWeekdays = function () {
+	var fdow = this.firstDayOfWeek;
+	var cell = this.firstdayname;
+	var weekend = Calendar._TT["WEEKEND"];
+	for (var i = 0; i < 7; ++i) {
+		cell.className = "day name";
+		var realday = (i + fdow) % 7;
+		if (i) {
+			cell.ttip = Calendar._TT["DAY_FIRST"].replace("%s", Calendar._DN[realday]);
+			cell.navtype = 100;
+			cell.calendar = this;
+			cell.fdow = realday;
+			Calendar._add_evs(cell);
+		}
+		if (weekend.indexOf(realday.toString()) != -1) {
+			Calendar.addClass(cell, "weekend");
+		}
+		cell.innerHTML = Calendar._SDN[(i + fdow) % 7];
+		cell = cell.nextSibling;
+	}
+};
+
+/** Internal function.  Hides all combo boxes that might be displayed. */
+Calendar.prototype._hideCombos = function () {
+	this.monthsCombo.style.display = "none";
+	this.yearsCombo.style.display = "none";
+};
+
+/** Internal function.  Starts dragging the element. */
+Calendar.prototype._dragStart = function (ev) {
+	if (this.dragging) {
+		return;
+	}
+	this.dragging = true;
+	var posX;
+	var posY;
+	if (Calendar.is_ie) {
+		posY = window.event.clientY + document.body.scrollTop;
+		posX = window.event.clientX + document.body.scrollLeft;
+	} else {
+		posY = ev.clientY + window.scrollY;
+		posX = ev.clientX + window.scrollX;
+	}
+	var st = this.element.style;
+	this.xOffs = posX - parseInt(st.left);
+	this.yOffs = posY - parseInt(st.top);
+	with (Calendar) {
+		addEvent(document, "mousemove", calDragIt);
+		addEvent(document, "mouseup", calDragEnd);
+	}
+};
+
+// BEGIN: DATE OBJECT PATCHES
+
+/** Adds the number of days array to the Date object. */
+Date._MD = new Array(31,28,31,30,31,30,31,31,30,31,30,31);
+
+/** Constants used for time computations */
+Date.SECOND = 1000 /* milliseconds */;
+Date.MINUTE = 60 * Date.SECOND;
+Date.HOUR   = 60 * Date.MINUTE;
+Date.DAY    = 24 * Date.HOUR;
+Date.WEEK   =  7 * Date.DAY;
+
+Date.parseDate = function(str, fmt) {
+	var today = new Date();
+	var y = 0;
+	var m = -1;
+	var d = 0;
+	var a = str.split(/\W+/);
+	var b = fmt.match(/%./g);
+	var i = 0, j = 0;
+	var hr = 0;
+	var min = 0;
+	for (i = 0; i < a.length; ++i) {
+		if (!a[i])
+			continue;
+		switch (b[i]) {
+		    case "%d":
+		    case "%e":
+			d = parseInt(a[i], 10);
+			break;
+
+		    case "%m":
+			m = parseInt(a[i], 10) - 1;
+			break;
+
+		    case "%Y":
+		    case "%y":
+			y = parseInt(a[i], 10);
+			(y < 100) && (y += (y > 29) ? 1900 : 2000);
+			break;
+
+		    case "%b":
+		    case "%B":
+			for (j = 0; j < 12; ++j) {
+				if (Calendar._MN[j].substr(0, a[i].length).toLowerCase() == a[i].toLowerCase()) { m = j; break; }
+			}
+			break;
+
+		    case "%H":
+		    case "%I":
+		    case "%k":
+		    case "%l":
+			hr = parseInt(a[i], 10);
+			break;
+
+		    case "%P":
+		    case "%p":
+			if (/pm/i.test(a[i]) && hr < 12)
+				hr += 12;
+			else if (/am/i.test(a[i]) && hr >= 12)
+				hr -= 12;
+			break;
+
+		    case "%M":
+			min = parseInt(a[i], 10);
+			break;
+		}
+	}
+	if (isNaN(y)) y = today.getFullYear();
+	if (isNaN(m)) m = today.getMonth();
+	if (isNaN(d)) d = today.getDate();
+	if (isNaN(hr)) hr = today.getHours();
+	if (isNaN(min)) min = today.getMinutes();
+	if (y != 0 && m != -1 && d != 0)
+		return new Date(y, m, d, hr, min, 0);
+	y = 0; m = -1; d = 0;
+	for (i = 0; i < a.length; ++i) {
+		if (a[i].search(/[a-zA-Z]+/) != -1) {
+			var t = -1;
+			for (j = 0; j < 12; ++j) {
+				if (Calendar._MN[j].substr(0, a[i].length).toLowerCase() == a[i].toLowerCase()) { t = j; break; }
+			}
+			if (t != -1) {
+				if (m != -1) {
+					d = m+1;
+				}
+				m = t;
+			}
+		} else if (parseInt(a[i], 10) <= 12 && m == -1) {
+			m = a[i]-1;
+		} else if (parseInt(a[i], 10) > 31 && y == 0) {
+			y = parseInt(a[i], 10);
+			(y < 100) && (y += (y > 29) ? 1900 : 2000);
+		} else if (d == 0) {
+			d = a[i];
+		}
+	}
+	if (y == 0)
+		y = today.getFullYear();
+	if (m != -1 && d != 0)
+		return new Date(y, m, d, hr, min, 0);
+	return today;
+};
+
+/** Returns the number of days in the current month */
+Date.prototype.getMonthDays = function(month) {
+	var year = this.getFullYear();
+	if (typeof month == "undefined") {
+		month = this.getMonth();
+	}
+	if (((0 == (year%4)) && ( (0 != (year%100)) || (0 == (year%400)))) && month == 1) {
+		return 29;
+	} else {
+		return Date._MD[month];
+	}
+};
+
+/** Returns the number of day in the year. */
+Date.prototype.getDayOfYear = function() {
+	var now = new Date(this.getFullYear(), this.getMonth(), this.getDate(), 0, 0, 0);
+	var then = new Date(this.getFullYear(), 0, 0, 0, 0, 0);
+	var time = now - then;
+	return Math.floor(time / Date.DAY);
+};
+
+/** Returns the number of the week in year, as defined in ISO 8601.
+    This function is only correct if `this` is the first day of the week. */
+Date.prototype.getWeekNumber = function() {
+	var d =  new Date(this.getFullYear(), this.getMonth(), this.getDate());
+	var days = 1000*60*60*24; // one day in milliseconds
+	
+	// get the thursday of the current week
+	var this_thursday = new Date(
+		d.valueOf() // selected date
+		- (d.getDay() % 7)*days   // previous sunday
+		+ 4*days                  // + 4 days
+	).valueOf();
+	
+	// the thursday in the first week of the year
+	var first_thursday = new Date(
+		new Date(this.getFullYear(), 0, 4).valueOf() // January 4 is in the first week by definition
+		- (d.getDay() % 7)*days   // previous sunday
+		+ 4*days                  // + 4 days
+	).valueOf();
+	
+	return Math.round((this_thursday - first_thursday) / (7*days)) + 1;
+};
+
+/** Checks date and time equality */
+Date.prototype.equalsTo = function(date) {
+	return ((this.getFullYear() == date.getFullYear()) &&
+		(this.getMonth() == date.getMonth()) &&
+		(this.getDate() == date.getDate()) &&
+		(this.getHours() == date.getHours()) &&
+		(this.getMinutes() == date.getMinutes()));
+};
+
+/** Set only the year, month, date parts (keep existing time) */
+Date.prototype.setDateOnly = function(date) {
+	var tmp = new Date(date);
+	this.setDate(1);
+	this.setFullYear(tmp.getFullYear());
+	this.setMonth(tmp.getMonth());
+	this.setDate(tmp.getDate());
+};
+
+/** Prints the date in a string according to the given format. */
+Date.prototype.print = function (str) {
+	var m = this.getMonth();
+	var d = this.getDate();
+	var y = this.getFullYear();
+	var wn = this.getWeekNumber();
+	var w = this.getDay();
+	var s = {};
+	var hr = this.getHours();
+	var pm = (hr >= 12);
+	var ir = (pm) ? (hr - 12) : hr;
+	var dy = this.getDayOfYear();
+	if (ir == 0)
+		ir = 12;
+	var min = this.getMinutes();
+	var sec = this.getSeconds();
+	s["%a"] = Calendar._SDN[w]; // abbreviated weekday name [FIXME: I18N]
+	s["%A"] = Calendar._DN[w]; // full weekday name
+	s["%b"] = Calendar._SMN[m]; // abbreviated month name [FIXME: I18N]
+	s["%B"] = Calendar._MN[m]; // full month name
+	// FIXME: %c : preferred date and time representation for the current locale
+	s["%C"] = 1 + Math.floor(y / 100); // the century number
+	s["%d"] = (d < 10) ? ("0" + d) : d; // the day of the month (range 01 to 31)
+	s["%e"] = d; // the day of the month (range 1 to 31)
+	// FIXME: %D : american date style: %m/%d/%y
+	// FIXME: %E, %F, %G, %g, %h (man strftime)
+	s["%H"] = (hr < 10) ? ("0" + hr) : hr; // hour, range 00 to 23 (24h format)
+	s["%I"] = (ir < 10) ? ("0" + ir) : ir; // hour, range 01 to 12 (12h format)
+	s["%j"] = (dy < 100) ? ((dy < 10) ? ("00" + dy) : ("0" + dy)) : dy; // day of the year (range 001 to 366)
+	s["%k"] = hr;		// hour, range 0 to 23 (24h format)
+	s["%l"] = ir;		// hour, range 1 to 12 (12h format)
+	s["%m"] = (m < 9) ? ("0" + (1+m)) : (1+m); // month, range 01 to 12
+	s["%M"] = (min < 10) ? ("0" + min) : min; // minute, range 00 to 59
+	s["%n"] = "\n";		// a newline character
+	s["%p"] = pm ? "PM" : "AM";
+	s["%P"] = pm ? "pm" : "am";
+	// FIXME: %r : the time in am/pm notation %I:%M:%S %p
+	// FIXME: %R : the time in 24-hour notation %H:%M
+	s["%s"] = Math.floor(this.getTime() / 1000);
+	s["%S"] = (sec < 10) ? ("0" + sec) : sec; // seconds, range 00 to 59
+	s["%t"] = "\t";		// a tab character
+	// FIXME: %T : the time in 24-hour notation (%H:%M:%S)
+	s["%U"] = s["%W"] = s["%V"] = (wn < 10) ? ("0" + wn) : wn;
+	s["%u"] = w + 1;	// the day of the week (range 1 to 7, 1 = MON)
+	s["%w"] = w;		// the day of the week (range 0 to 6, 0 = SUN)
+	// FIXME: %x : preferred date representation for the current locale without the time
+	// FIXME: %X : preferred time representation for the current locale without the date
+	s["%y"] = ('' + y).substr(2, 2); // year without the century (range 00 to 99)
+	s["%Y"] = y;		// year with the century
+	s["%%"] = "%";		// a literal '%' character
+
+	var re = /%./g;
+	if (!Calendar.is_ie5 && !Calendar.is_khtml)
+		return str.replace(re, function (par) { return s[par] || par; });
+
+	var a = str.match(re);
+	for (var i = 0; i < a.length; i++) {
+		var tmp = s[a[i]];
+		if (tmp) {
+			re = new RegExp(a[i], 'g');
+			str = str.replace(re, tmp);
+		}
+	}
+
+	return str;
+};
+
+Date.prototype.__msh_oldSetFullYear = Date.prototype.setFullYear;
+Date.prototype.setFullYear = function(y) {
+	var d = new Date(this);
+	d.__msh_oldSetFullYear(y);
+	if (d.getMonth() != this.getMonth())
+		this.setDate(28);
+	this.__msh_oldSetFullYear(y);
+};
+
+// END: DATE OBJECT PATCHES
+
+
+// global object that remembers the calendar
+window._dynarch_popupCalendar = null;