Index: openacs-4/packages/acs-subsite/www/resources/core.js
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-subsite/www/resources/core.js,v
diff -u -r1.5.2.1 -r1.5.2.2
--- openacs-4/packages/acs-subsite/www/resources/core.js	23 Jul 2004 06:54:07 -0000	1.5.2.1
+++ openacs-4/packages/acs-subsite/www/resources/core.js	23 Nov 2004 18:28:15 -0000	1.5.2.2
@@ -113,8 +113,9 @@
 /* HTMLArea (part of Richtext Widget) Support */
 
 function acs_initHtmlArea(editor_var, elementid) {
-    var config         = editor_var.config;
+    var config         = new HTMLArea.Config();
     config.editorURL   = "/resources/acs-templating/htmlarea/";
+    editor_var = new HTMLArea(elementid, config);
     editor_var.generate();
     return false;
 }
@@ -161,3 +162,1505 @@
   form.action = url;
   form.submit();
 }
+
+
+
+
+
+/*  Copyright Mihai Bazon, 2002, 2003  |  http://students.infoiasi.ro/~mishoo
+ * ---------------------------------------------------------------------------
+ *
+ * The DHTML Calendar, version 0.9.3 "It's still alive & keeps rocking"
+ *
+ * Details and latest version at:
+ * http://students.infoiasi.ro/~mishoo/site/calendar.epl
+ *
+ * Feel free to use this script under the terms of the GNU Lesser General
+ * Public License, as long as you do not remove or alter this notice.
+ */
+
+/** The Calendar object constructor. */
+Calendar = function (mondayFirst, dateStr, onSelected, onClose) {
+	// member variables
+	this.activeDiv = null;
+	this.currentDateEl = null;
+	this.checkDisabled = 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.mondayFirst = mondayFirst;
+	this.dateStr = dateStr;
+	this.ar_days = 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 (!Calendar._DN3) {
+		// table of short day names
+		var ar = new Array();
+		for (var i = 8; i > 0;) {
+			ar[--i] = Calendar._DN[i].substr(0, 3);
+		}
+		Calendar._DN3 = ar;
+		// table of short month names
+		ar = new Array();
+		for (var i = 12; i > 0;) {
+			ar[--i] = Calendar._MN[i].substr(0, 3);
+		}
+		Calendar._MN3 = 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) );
+
+// short day names array (initialized at first constructor call)
+Calendar._DN3 = null;
+
+// short month names array (initialized at first constructor call)
+Calendar._MN3 = null;
+
+// BEGIN: UTILITY FUNCTIONS; beware that these might be moved into a separate
+//        library, at some point.
+
+Calendar.getAbsolutePos = function(el) {
+	var r = { x: el.offsetLeft, y: el.offsetTop };
+	if (el.offsetParent) {
+		var tmp = Calendar.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;
+};
+
+Calendar.getElement = function(ev) {
+	if (Calendar.is_ie) {
+		return window.event.srcElement;
+	} else {
+		return ev.currentTarget;
+	}
+};
+
+Calendar.getTargetElement = function(ev) {
+	if (Calendar.is_ie) {
+		return window.event.srcElement;
+	} else {
+		return ev.target;
+	}
+};
+
+Calendar.stopEvent = function(ev) {
+	if (Calendar.is_ie) {
+		window.event.cancelBubble = true;
+		window.event.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 { // Opera (or old browsers)
+		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 { // Opera (or old browsers)
+		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;
+	mc.style.left = cd.offsetLeft + "px";
+	mc.style.top = (cd.offsetTop + cd.offsetHeight) + "px";
+	mc.style.display = "block";
+};
+
+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.firstChild.data = Y;
+			yr.year = Y;
+			yr.style.display = "block";
+			show = true;
+		} else {
+			yr.style.display = "none";
+		}
+		yr = yr.nextSibling;
+		Y += fwd ? 2 : -2;
+	}
+	if (show) {
+		yc.style.left = cd.offsetLeft + "px";
+		yc.style.top = (cd.offsetTop + cd.offsetHeight) + "px";
+		yc.style.display = "block";
+	}
+};
+
+// 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);
+	Calendar.removeClass(el, "active");
+	if (target == el || target.parentNode == el) {
+		Calendar.cellClick(el);
+	}
+	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 {
+		Calendar.removeClass(el, "active");
+		Calendar.removeClass(el, "hilite");
+		Calendar.removeClass(el.parentNode, "rowhilite");
+	}
+	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 {
+		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");
+			}
+		}
+	}
+	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, "mouseover", stopEvent);
+		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) {
+		addClass(el, "hilite active");
+		addEvent(document, "mouseover", tableMouseOver);
+		addEvent(document, "mousemove", tableMouseOver);
+		addEvent(document, "mouseup", tableMouseUp);
+	} else if (cal.isPopup) {
+		cal._dragStart(ev);
+	}
+	if (el.navtype == -1 || el.navtype == 1) {
+		cal.timeout = setTimeout("Calendar.showMonthsCombo()", 250);
+	} else if (el.navtype == -2 || el.navtype == 2) {
+		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));
+	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) == "_") {
+			var date = null;
+			with (el.calendar.date) {
+				date = new Date(getFullYear(), getMonth(), el.caldate);
+			}
+			el.ttip = date.print(el.calendar.ttDateFormat) + el.ttip.substr(1);
+		}
+		el.calendar.tooltips.firstChild.data = 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");
+		}
+		el.calendar.tooltips.firstChild.data = _TT["SEL_DATE"];
+		return stopEvent(ev);
+	}
+};
+
+/**
+ *  A generic "click" handler :) handles all types of buttons defined in this
+ *  calendar.
+ */
+Calendar.cellClick = function(el) {
+	var cal = el.calendar;
+	var closing = false;
+	var newdate = false;
+	var date = null;
+	if (typeof el.navtype == "undefined") {
+		Calendar.removeClass(cal.currentDateEl, "selected");
+		Calendar.addClass(el, "selected");
+		closing = (cal.currentDateEl == el);
+		if (!closing) {
+			cal.currentDateEl = el;
+		}
+		cal.date.setDate(el.caldate);
+		date = cal.date;
+		newdate = true;
+		// a date was clicked
+		cal.dateClicked = true;
+	} else {
+		if (el.navtype == 200) {
+			Calendar.removeClass(el, "hilite");
+			cal.callCloseHandler();
+			return;
+		}
+		date = (el.navtype == 0) ? new Date() : new Date(cal.date);
+		// 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);
+		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 -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.setMondayFirst(!cal.mondayFirst);
+			return;
+		    case 0:
+			// TODAY will bring us here
+			if ((typeof cal.checkDisabled == "function") && cal.checkDisabled(date)) {
+				// remember, "date" was previously set to new
+				// Date() if TODAY was clicked; thus, it
+				// contains today date.
+				return false;
+			}
+			break;
+		}
+		if (!date.equalsTo(cal.date)) {
+			cal.setDate(date);
+			newdate = true;
+		}
+	}
+	if (newdate) {
+		cal.callHandler();
+	}
+	if (closing) {
+		Calendar.removeClass(el, "hilite");
+		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";
+		Calendar._add_evs(cell);
+		cell.calendar = cal;
+		cell.navtype = navtype;
+		if (text.substr(0, 1) != "&") {
+			cell.appendChild(document.createTextNode(text));
+		}
+		else {
+			// FIXME: dirty hack for entities
+			cell.innerHTML = text;
+		}
+		return cell;
+	};
+
+	row = Calendar.createElement("tr", thead);
+	var title_length = 6;
+	(this.isPopup) && --title_length;
+	(this.weekNumbers) && ++title_length;
+
+	hh("-", 1, 100).ttip = Calendar._TT["TOGGLE"];
+	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.appendChild(document.createTextNode(Calendar._TT["WK"]));
+	}
+	for (var i = 7; i > 0; --i) {
+		cell = Calendar.createElement("td", row);
+		cell.appendChild(document.createTextNode(""));
+		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);
+			cell.appendChild(document.createTextNode(""));
+		}
+		for (var j = 7; j > 0; --j) {
+			cell = Calendar.createElement("td", row);
+			cell.appendChild(document.createTextNode(""));
+			cell.calendar = this;
+			Calendar._add_evs(cell);
+		}
+	}
+
+	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 = "label";
+		mn.month = i;
+		mn.appendChild(document.createTextNode(Calendar._MN3[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 = "label";
+		yr.appendChild(document.createTextNode(""));
+		div.appendChild(yr);
+	}
+
+	this._init(this.mondayFirst, this.date);
+	parent.appendChild(this.element);
+};
+
+/** keyboard navigation, only for popup calendars */
+Calendar._keyEvent = function(ev) {
+	if (!window.calendar) {
+		return false;
+	}
+	(Calendar.is_ie) && (ev = window.event);
+	var cal = window.calendar;
+	var act = (Calendar.is_ie || ev.type == "keypress");
+	if (ev.ctrlKey) {
+		switch (ev.keyCode) {
+		    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 (ev.keyCode) {
+	    case 32: // KEY space (now)
+		Calendar.cellClick(cal._nav_now);
+		break;
+	    case 27: // KEY esc
+		act && cal.hide();
+		break;
+	    case 37: // KEY left
+	    case 38: // KEY up
+	    case 39: // KEY right
+	    case 40: // KEY down
+		if (act) {
+			var date = cal.date.getDate() - 1;
+			var el = cal.currentDateEl;
+			var ne = null;
+			var prev = (ev.keyCode == 37) || (ev.keyCode == 38);
+			switch (ev.keyCode) {
+			    case 37: // KEY left
+				(--date >= 0) && (ne = cal.ar_days[date]);
+				break;
+			    case 38: // KEY up
+				date -= 7;
+				(date >= 0) && (ne = cal.ar_days[date]);
+				break;
+			    case 39: // KEY right
+				(++date < cal.ar_days.length) && (ne = cal.ar_days[date]);
+				break;
+			    case 40: // KEY down
+				date += 7;
+				(date < cal.ar_days.length) && (ne = cal.ar_days[date]);
+				break;
+			}
+			if (!ne) {
+				if (prev) {
+					Calendar.cellClick(cal._nav_pm);
+				} else {
+					Calendar.cellClick(cal._nav_nm);
+				}
+				date = (prev) ? cal.date.getMonthDays() : 1;
+				el = cal.currentDateEl;
+				ne = cal.ar_days[date - 1];
+			}
+			Calendar.removeClass(el, "selected");
+			Calendar.addClass(ne, "selected");
+			cal.date.setDate(ne.caldate);
+			cal.callHandler();
+			cal.currentDateEl = ne;
+		}
+		break;
+	    case 13: // KEY enter
+		if (act) {
+			cal.callHandler();
+			cal.hide();
+		}
+		break;
+	    default:
+		return false;
+	}
+	return Calendar.stopEvent(ev);
+};
+
+/**
+ *  (RE)Initializes the calendar to the given date and style (if mondayFirst is
+ *  true it makes Monday the first day of week, otherwise the weeks start on
+ *  Sunday.
+ */
+Calendar.prototype._init = function (mondayFirst, date) {
+	var today = new Date();
+	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.mondayFirst = mondayFirst;
+	this.date = new Date(date);
+	var month = date.getMonth();
+	var mday = date.getDate();
+	var no_days = date.getMonthDays();
+	date.setDate(1);
+	var wday = date.getDay();
+	var MON = mondayFirst ? 1 : 0;
+	var SAT = mondayFirst ? 5 : 6;
+	var SUN = mondayFirst ? 6 : 0;
+	if (mondayFirst) {
+		wday = (wday > 0) ? (wday - 1) : 6;
+	}
+	var iday = 1;
+	var row = this.tbody.firstChild;
+	var MN = Calendar._MN3[month];
+	var hasToday = ((today.getFullYear() == year) && (today.getMonth() == month));
+	var todayDate = today.getDate();
+	var week_number = date.getWeekNumber();
+	var ar_days = new Array();
+	for (var i = 0; i < 6; ++i) {
+		if (iday > no_days) {
+			row.className = "emptyrow";
+			row = row.nextSibling;
+			continue;
+		}
+		var cell = row.firstChild;
+		if (this.weekNumbers) {
+			cell.className = "day wn";
+			cell.firstChild.data = week_number;
+			cell = cell.nextSibling;
+		}
+		++week_number;
+		row.className = "daysrow";
+		for (var j = 0; j < 7; ++j) {
+			cell.className = "day";
+			if ((!i && j < wday) || iday > no_days) {
+				// cell.className = "emptycell";
+				cell.innerHTML = "&nbsp;";
+				cell.disabled = true;
+				cell = cell.nextSibling;
+				continue;
+			}
+			cell.disabled = false;
+			cell.firstChild.data = iday;
+			if (typeof this.checkDisabled == "function") {
+				date.setDate(iday);
+				if (this.checkDisabled(date)) {
+					cell.className += " disabled";
+					cell.disabled = true;
+				}
+			}
+			if (!cell.disabled) {
+				ar_days[ar_days.length] = cell;
+				cell.caldate = iday;
+				cell.ttip = "_";
+				if (iday == mday) {
+					cell.className += " selected";
+					this.currentDateEl = cell;
+				}
+				if (hasToday && (iday == todayDate)) {
+					cell.className += " today";
+					cell.ttip += Calendar._TT["PART_TODAY"];
+				}
+				if (wday == SAT || wday == SUN) {
+					cell.className += " weekend";
+				}
+			}
+			++iday;
+			((++wday) ^ 7) || (wday = 0);
+			cell = cell.nextSibling;
+		}
+		row = row.nextSibling;
+	}
+	this.ar_days = ar_days;
+	this.title.firstChild.data = Calendar._MN[month] + ", " + year;
+	// PROFILE
+	// this.tooltips.firstChild.data = "Generated in " + ((new Date()) - today) + " ms";
+};
+
+/**
+ *  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.mondayFirst, 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.mondayFirst, this.date);
+};
+
+/** Modifies the "mondayFirst" parameter (EU/US style). */
+Calendar.prototype.setMondayFirst = function (mondayFirst) {
+	this._init(mondayFirst, 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.setDisabledHandler = function (unaryFunction) {
+	this.checkDisabled = 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;
+};
+
+/**
+ *  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) {
+	if (!window.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.calendar.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.calendar = 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 p = Calendar.getAbsolutePos(el);
+	if (!opts || typeof opts != "string") {
+		this.showAt(p.x, p.y + el.offsetHeight);
+		return true;
+	}
+	this.show();
+	var w = this.element.offsetWidth;
+	var h = this.element.offsetHeight;
+	this.hide();
+	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 "r": p.x += el.offsetWidth - w; break;
+	    case "l": break; // already there
+	}
+	this.showAt(p.x, p.y);
+};
+
+/** 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) {
+	var y = 0;
+	var m = -1;
+	var d = 0;
+	var a = str.split(/\W+/);
+	if (!fmt) {
+		fmt = this.dateFormat;
+	}
+	var b = fmt.split(/\W+/);
+	var i = 0, j = 0;
+	for (i = 0; i < a.length; ++i) {
+		if (b[i] == "D" || b[i] == "DD") {
+			continue;
+		}
+		if (b[i] == "d" || b[i] == "dd") {
+			d = parseInt(a[i], 10);
+		}
+		if (b[i] == "m" || b[i] == "mm") {
+			m = parseInt(a[i], 10) - 1;
+		}
+		if ((b[i] == "y") || (b[i] == "yy")) {
+			y = parseInt(a[i], 10);
+			(y < 100) && (y += (y > 29) ? 1900 : 2000);
+		}
+		if (b[i] == "M" || b[i] == "MM") {
+			for (j = 0; j < 12; ++j) {
+				if (Calendar._MN[j].substr(0, a[i].length).toLowerCase() == a[i].toLowerCase()) { m = j; break; }
+			}
+		}
+	}
+	if (y != 0 && m != -1 && d != 0) {
+		this.setDate(new Date(y, m, d));
+		return;
+	}
+	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) {
+		var today = new Date();
+		y = today.getFullYear();
+	}
+	if (m != -1 && d != 0) {
+		this.setDate(new Date(y, m, d));
+	}
+};
+
+Calendar.prototype.hideShowCovered = function () {
+	function getStyleProp(obj, style){
+		var value = obj.style[style];
+		if (!value) {
+			if (document.defaultView && typeof (document.defaultView.getComputedStyle) == "function") { // Gecko, W3C
+				value = document.defaultView.
+					getComputedStyle(obj, "").getPropertyValue(style);
+			} else if (obj.currentStyle) { // IE
+				value = obj.currentStyle[style];
+			} else {
+				value = obj.style[style];
+			}
+		}
+		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 = getStyleProp(cc, "visibility");
+				}
+				cc.style.visibility = cc.__msh_save_visibility;
+			} else {
+				if (!cc.__msh_save_visibility) {
+					cc.__msh_save_visibility = getStyleProp(cc, "visibility");
+				}
+				cc.style.visibility = "hidden";
+			}
+		}
+	}
+};
+
+/** Internal function; it displays the bar with the names of the weekday. */
+Calendar.prototype._displayWeekdays = function () {
+	var MON = this.mondayFirst ? 0 : 1;
+	var SUN = this.mondayFirst ? 6 : 0;
+	var SAT = this.mondayFirst ? 5 : 6;
+	var cell = this.firstdayname;
+	for (var i = 0; i < 7; ++i) {
+		cell.className = "day name";
+		if (!i) {
+			cell.ttip = this.mondayFirst ? Calendar._TT["SUN_FIRST"] : Calendar._TT["MON_FIRST"];
+			cell.navtype = 100;
+			cell.calendar = this;
+			Calendar._add_evs(cell);
+		}
+		if (i == SUN || i == SAT) {
+			Calendar.addClass(cell, "weekend");
+		}
+		cell.firstChild.data = Calendar._DN3[i + 1 - MON];
+		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, "mouseover", stopEvent);
+		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;
+
+/** 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 the week.  The algorithm was "stolen" from PPK's
+ * website, hope it's correct :) http://www.xs4all.nl/~ppk/js/week.html */
+Date.prototype.getWeekNumber = function() {
+	var now = new Date(this.getFullYear(), this.getMonth(), this.getDate(), 0, 0, 0);
+	var then = new Date(this.getFullYear(), 0, 1, 0, 0, 0);
+	var time = now - then;
+	var day = then.getDay();
+	(day > 3) && (day -= 4) || (day += 3);
+	return Math.round(((time / Date.DAY) + day) / 7);
+};
+
+/** Checks dates equality (ignores time) */
+Date.prototype.equalsTo = function(date) {
+	return ((this.getFullYear() == date.getFullYear()) &&
+		(this.getMonth() == date.getMonth()) &&
+		(this.getDate() == date.getDate()));
+};
+
+/** Prints the date in a string according to the given format. */
+Date.prototype.print = function (frm) {
+	var str = new String(frm);
+	var m = this.getMonth();
+	var d = this.getDate();
+	var y = this.getFullYear();
+	var wn = this.getWeekNumber();
+	var w = this.getDay();
+	var s = new Array();
+	s["d"] = d;
+	s["dd"] = (d < 10) ? ("0" + d) : d;
+	s["m"] = 1+m;
+	s["mm"] = (m < 9) ? ("0" + (1+m)) : (1+m);
+	s["y"] = y;
+	s["yy"] = new String(y).substr(2, 2);
+	s["w"] = wn;
+	s["ww"] = (wn < 10) ? ("0" + wn) : wn;
+	with (Calendar) {
+		s["D"] = _DN3[w];
+		s["DD"] = _DN[w];
+		s["M"] = _MN3[m];
+		s["MM"] = _MN[m];
+	}
+	var re = /(.*)(\W|^)(d|dd|m|mm|y|yy|MM|M|DD|D|w|ww)(\W|$)(.*)/;
+	while (re.exec(str) != null) {
+		str = RegExp.$1 + RegExp.$2 + s[RegExp.$3] + RegExp.$4 + RegExp.$5;
+	}
+	return str;
+};
+
+// END: DATE OBJECT PATCHES
+
+// global object that remembers the calendar
+window.calendar = null;
+
+
+
+
+
+
+
+
+
+// ** I18N
+Calendar._DN = new Array
+("Sunday",
+ "Monday",
+ "Tuesday",
+ "Wednesday",
+ "Thursday",
+ "Friday",
+ "Saturday",
+ "Sunday");
+Calendar._MN = new Array
+("January",
+ "February",
+ "March",
+ "April",
+ "May",
+ "June",
+ "July",
+ "August",
+ "September",
+ "October",
+ "November",
+ "December");
+
+// tooltips
+Calendar._TT = {};
+Calendar._TT["TOGGLE"] = "Toggle first day of week";
+Calendar._TT["PREV_YEAR"] = "Prev. year (hold for menu)";
+Calendar._TT["PREV_MONTH"] = "Prev. month (hold for menu)";
+Calendar._TT["GO_TODAY"] = "Go Today";
+Calendar._TT["NEXT_MONTH"] = "Next month (hold for menu)";
+Calendar._TT["NEXT_YEAR"] = "Next year (hold for menu)";
+Calendar._TT["SEL_DATE"] = "Select date";
+Calendar._TT["DRAG_TO_MOVE"] = "Drag to move";
+Calendar._TT["PART_TODAY"] = " (today)";
+Calendar._TT["MON_FIRST"] = "Display Monday first";
+Calendar._TT["SUN_FIRST"] = "Display Sunday first";
+Calendar._TT["CLOSE"] = "Close";
+Calendar._TT["TODAY"] = "Today";
+
+// date formats
+Calendar._TT["DEF_DATE_FORMAT"] = "y-mm-dd";
+Calendar._TT["TT_DATE_FORMAT"] = "D, M d";
+
+Calendar._TT["WK"] = "wk";
+
+
+
+
+
+
+
+
+
+var calendar = null; // remember the calendar object so that we reuse
+                     // it and avoid creating another
+
+// This function gets called when an end-user clicks on some date
+function selected(cal, date) {
+  cal.sel.value = date; // just update the value of the input field
+}
+
+// And this gets called when the end-user clicks on the _selected_ date,
+// or clicks the "Close" (X) button.  It just hides the calendar without
+// destroying it.
+function closeHandler(cal) {
+  cal.hide();                   // hide the calendar
+
+  // don't check mousedown on document anymore (used to be able to hide the
+  // calendar when someone clicks outside it, see the showCalendar function).
+  Calendar.removeEvent(document, "mousedown", checkCalendar);
+}
+
+// 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.
+function checkCalendar(ev) {
+  var el = Calendar.is_ie ? Calendar.getElement(ev) : Calendar.getTargetElement(ev);
+  for (; el != null; el = el.parentNode)
+    // FIXME: allow end-user to click some link without closing the
+    // calendar.  Good to see real-time stylesheet change :)
+    if (el == calendar.element || el.tagName == "A") break;
+  if (el == null) {
+    // calls closeHandler which should hide the calendar.
+    calendar.callCloseHandler(); Calendar.stopEvent(ev);
+  }
+}
+
+// This function shows the calendar under the element having the given id.
+// It takes care of catching "mousedown" signals on document and hiding the
+// calendar if the click was outside.
+function showCalendar(id) {
+  var el = document.getElementById(id);
+  if (calendar != null) {
+    // we already have one created, so just update it.
+    calendar.hide();            // hide the existing calendar
+    calendar.parseDate(el.value); // set it to a new date
+  } else {
+    // first-time call, create the calendar
+    var cal = new Calendar(true, null, selected, closeHandler);
+    calendar = cal;             // remember the calendar in the global
+    cal.setRange(1900, 2070);   // min/max year allowed
+    calendar.create();          // create a popup calendar
+  }
+  calendar.sel = el;            // inform it about the input field in use
+  calendar.showAtElement(el);   // show the calendar next to the input field
+  // catch mousedown on the document
+  Calendar.addEvent(document, "mousedown", checkCalendar);
+  return false;
+}
+