/* Author: Mihai Bazon, September 2002
	 * http://students.infoiasi.ro/~mishoo
	 *
	 * Version: 0.9
	 *
	 * Feel free to use this script under the terms of the GNU General Public
	 * License, as long as you do not remove or alter this notice.
	 */
	// the Calendar object constructor.
	Calendar = function (mondayFirst, dateStr, yourHandler, yourCloseHandler) {
		// member variables
		this.activeDateEl = null;
		this.activeMonEl = null;
		this.activeYearEl = null;
		this.currentDateEl = null;
		this.disabledHandler = null;
		this.timeout = null;
		this.yourHandler = yourHandler || null;
		this.yourCloseHandler = yourCloseHandler || null;
		this.dragging = false;
		this.minYear = 1970;
		this.maxYear = 2050;
		this.dateFormat = "y-mm-dd";
		this.isPopup = true;
		this.mondayFirst = mondayFirst;
		this.dateStr = dateStr;
	};
	
	// ** constants
	
	// "static", needed for event handlers.
	Calendar._C = null;
	
	Calendar.is_ie = ( (navigator.userAgent.toLowerCase().indexOf("msie") != -1) &&
			   (navigator.userAgent.toLowerCase().indexOf("opera") == -1) );
	Calendar._MD = new Array(31,28,31,30,31,30,31,31,30,31,30,31);
	
	// ** public functions (these can be thought as static, since none of them use
	// ** "this" and they can be accessed without using an instance of the object).
	
	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._add_evs = function(el) {
		Calendar.addEvent(el, "mouseover", Calendar.dayMouseOver);
		Calendar.addEvent(el, "mousedown", Calendar.dayMouseDown);
		Calendar.addEvent(el, "mouseout", Calendar.dayMouseOut);
		if (Calendar.is_ie) {
			Calendar.addEvent(el, "dblclick", Calendar.dayMouseDblClick);
			el.setAttribute("unselectable", true);
		}
	};
	
	Calendar._del_evs = function(el) {
		Calendar.removeEvent(el, "mouseover", Calendar.dayMouseOver);
		Calendar.removeEvent(el, "mousedown", Calendar.dayMouseDown);
		Calendar.removeEvent(el, "mouseout", Calendar.dayMouseOut);
		if (Calendar.is_ie) {
			Calendar.removeEvent(el, "dblclick", Calendar.dayMouseDblClick);
		}
	};
	
	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.getMonthDays = function(year, month) {
		if (((0 == (year%4)) && ( (0 != (year%100)) || (0 == (year%400)))) && month == 1) {
			return 29;
		} else {
			return Calendar._MD[month];
		}
	};
	
	Calendar.removeClass = function(el, className) {
		if (!(el && el.className)) {
			return;
		}
		var classes = el.className.split(" ");
		var newClasses = new Array;
		for (i = 0; i < classes.length; ++i) {
			if (classes[i] != className) {
				newClasses[newClasses.length] = classes[i];
			}
		}
		el.className = newClasses.join(" ");
	};
	
	Calendar.addClass = function(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();
		}
	};
	
	Calendar.addEvent = function(el, evname, func) {
		if (Calendar.is_ie) {
			el.attachEvent("on" + evname, func);
		} else {
			el.addEventListener(evname, func, true);
		}
	};
	
	Calendar.removeEvent = function(el, evname, func) {
		if (Calendar.is_ie) {
			el.detachEvent("on" + evname, func);
		} else {
			el.removeEventListener(evname, func, 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.tableMouseUp = function(ev) {
		var cal = Calendar._C;
		if (!cal) {
			return false;
		}
		if (cal.timeout) {
			clearTimeout(cal.timeout);
		}
		var el = cal.activeDateEl;
		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);
			}
		} 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);
				}
			}
		}
		Calendar.removeEvent(document, "mouseup", Calendar.tableMouseUp);
		Calendar.removeEvent(document, "mouseover", Calendar.tableMouseOver);
		Calendar.removeEvent(document, "mousemove", Calendar.tableMouseOver);
		cal.hideCombos();
		Calendar.stopEvent(ev);
		Calendar._C = null;
	};
	
	Calendar.tableMouseOver = function (ev) {
		var cal = Calendar._C;
		if (!cal) {
			return;
		}
		var el = cal.activeDateEl;
		var target = Calendar.getTargetElement(ev);
		if (target == el || target.parentNode == el) {
			Calendar.addClass(el, "hilite active");
		} else {
			Calendar.removeClass(el, "active");
			Calendar.removeClass(el, "hilite");
		}
		var mon = Calendar.findMonth(target);
		var date = null;
		if (mon) {
			date = new Date(cal.date);
			if (mon.month != date.getMonth()) {
				if (cal.activeMonEl) {
					Calendar.removeClass(cal.activeMonEl, "hilite");
				}
				Calendar.addClass(mon, "hilite");
				cal.activeMonEl = mon;
			}
		} else {
			var year = Calendar.findYear(target);
			if (year) {
				date = new Date(cal.date);
				if (year.year != date.getFullYear()) {
					if (cal.activeYearEl) {
						Calendar.removeClass(cal.activeYearEl, "hilite");
					}
					Calendar.addClass(year, "hilite");
					cal.activeYearEl = year;
				}
			}
		}
		Calendar.stopEvent(ev);
	};
	
	Calendar.tableMouseDown = function (ev) {
		if (Calendar.getTargetElement(ev) == Calendar.getElement(ev)) {
			Calendar.stopEvent(ev);
		}
	};
	
	Calendar.showMonthsCombo = function () {
		var cal = Calendar._C;
		if (!cal) {
			return false;
		}
		var cal = cal;
		var cd = cal.activeDateEl;
		var mc = cal.monthsCombo;
		if (cal.activeMonEl) {
			Calendar.removeClass(cal.activeMonEl, "hilite");
		}
		var mon = cal.monthsCombo.getElementsByTagName("div")[cal.date.getMonth()];
		Calendar.addClass(mon, "hilite");
		cal.activeMonEl = mon;
		mc.style.left = cd.offsetLeft;
		mc.style.top = cd.offsetTop + cd.offsetHeight;
		mc.style.display = "block";
	};
	
	Calendar.showYearsCombo = function (fwd) {
		var cal = Calendar._C;
		if (!cal) {
			return false;
		}
		var cal = cal;
		var cd = cal.activeDateEl;
		var yc = cal.yearsCombo;
		if (cal.activeYearEl) {
			Calendar.removeClass(cal.activeYearEl, "hilite");
		}
		cal.activeYearEl = null;
		var Y = cal.date.getFullYear() + (fwd ? 1 : -1);
		var yr = yc.firstChild;
		var show = false;
		for (var i = 0; i < 12; ++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;
			yc.style.top = cd.offsetTop + cd.offsetHeight;
			yc.style.display = "block";
		}
	};
	
	Calendar.calDragIt = function (ev) {
		var cal = Calendar._C;
		if (!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";
		Calendar.stopEvent(ev);
	};
	
	Calendar.calDragEnd = function (ev) {
		var cal = Calendar._C;
		cal.dragging = false;
		Calendar.removeEvent(document, "mousemove", Calendar.calDragIt);
		Calendar.removeEvent(document, "mouseover", Calendar.stopEvent);
		Calendar.removeEvent(document, "mouseup", Calendar.calDragEnd);
		Calendar.tableMouseUp(ev);
		cal.hideShowCovered();
	};
	
	Calendar.dayMouseDown = function(ev) {
		var el = Calendar.getElement(ev);
		var cal = el.calendar;
		cal.activeDateEl = el;
		Calendar._C = cal;
		if (el.navtype != 300) {
			Calendar.addClass(el, "hilite active");
			Calendar.addEvent(document, "mouseover", Calendar.tableMouseOver);
			Calendar.addEvent(document, "mousemove", Calendar.tableMouseOver);
			Calendar.addEvent(document, "mouseup", Calendar.tableMouseUp);
		} else if (cal.isPopup) {
			cal.dragStart(ev);
		}
		Calendar.stopEvent(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;
		}
	};
	
	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) {
			return false;
		}
		if (el.ttip) {
			el.calendar.tooltips.firstChild.data = el.ttip;
		}
		if (el.navtype != 300) {
			Calendar.addClass(el, "hilite");
		}
		Calendar.stopEvent(ev);
	};
	
	Calendar.dayMouseOut = function(ev) {
		var el = Calendar.getElement(ev);
		if (Calendar.isRelated(el, ev) || Calendar._C) {
			return false;
		}
		Calendar.removeClass(el, "hilite");
		el.calendar.tooltips.firstChild.data = Calendar._TT["SEL_DATE"];
		Calendar.stopEvent(ev);
	};
	
	Calendar.datesEqual = function(a, b) {
		return ((a.getFullYear() == b.getFullYear()) &&
			(a.getMonth() == b.getMonth()) &&
			(a.getDate() == b.getDate()));
	};
	
	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;
			}
			date = el.caldate;
			cal.date = date;
			newdate = true;
		} else {
			if (el.navtype == 200) {
				Calendar.removeClass(el, "hilite");
				cal.callCloseHandler();
				return;
			}
			date = (el.navtype == 0) ? new Date() : new Date(cal.date);
			var year = date.getFullYear();
			var mon = date.getMonth();
			var setMonth = function (mon) {
				var day = date.getDate();
				var max = Calendar.getMonthDays(year, mon);
				if (day > max) {
					date.setDate(max);
				}
				date.setMonth(mon);
			};
			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;
			}
			if (!Calendar.datesEqual(date, cal.date)) {
				cal.setDate(date);
				newdate = el.navtype == 0;
			}
		}
		if (newdate) {
			cal.callHandler();
		}
		if (closing) {
			Calendar.removeClass(el, "hilite");
			cal.callCloseHandler();
		}
	};
	
	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 = document.createElement("table");
		this.table = table;
		table.cellSpacing = 0;
		table.cellPadding = 0;
		table.calendar = this;
		Calendar.addEvent(table, "mousedown", Calendar.tableMouseDown);
	
		var div = document.createElement("div");
		this.element = div;
		div.className = "calendar";
		if (this.isPopup) {
			div.style.position = "absolute";
			div.style.display = "none";
		}
		div.appendChild(table);
	
		var thead = document.createElement("thead");
		table.appendChild(thead);
		var cell = null;
		var row = null;
	
		var cal = this;
		var hh = function (text, cs, navtype) {
			cell = document.createElement("td");
			row.appendChild(cell);
			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 = document.createElement("tr");
		thead.appendChild(row);
		row.className = "headrow";
	
		hh("-", 1, 100).ttip = Calendar._TT["TOGGLE"];
		this.title = hh("", this.isPopup ? 5 : 6, 300);
		this.title.className = "title";
		if (this.isPopup) {
			this.title.ttip = Calendar._TT["DRAG_TO_MOVE"];
			this.title.style.cursor = "move";
			hh("X", 1, 200).ttip = Calendar._TT["CLOSE"];
		}
	
		row = document.createElement("tr");
		thead.appendChild(row);
		row.className = "headrow";
	
		hh("&#x00ab;", 1, -2).ttip = Calendar._TT["PREV_YEAR"];
		hh("&#x2039;", 1, -1).ttip = Calendar._TT["PREV_MONTH"];
		hh(Calendar._TT["TODAY"], 3, 0).ttip = Calendar._TT["GO_TODAY"];
		hh("&#x203a;", 1, 1).ttip = Calendar._TT["NEXT_MONTH"];
		hh("&#x00bb;", 1, 2).ttip = Calendar._TT["NEXT_YEAR"];
	
		// day names
		row = document.createElement("tr");
		thead.appendChild(row);
		row.className = "daynames";
		this.daynames = row;
		for (var i = 0; i < 7; ++i) {
			cell = document.createElement("td");
			row.appendChild(cell);
			cell.appendChild(document.createTextNode(""));
			if (!i) {
				cell.navtype = 100;
				cell.calendar = this;
				Calendar._add_evs(cell);
			}
		}
		this.displayWeekdays();
	
		var tbody = document.createElement("tbody");
		table.appendChild(tbody);
	
		for (i = 0; i < 6; ++i) {
			row = document.createElement("tr");
			tbody.appendChild(row);
			for (var j = 0; j < 7; ++j) {
				cell = document.createElement("td");
				row.appendChild(cell);
				cell.appendChild(document.createTextNode(""));
				cell.calendar = this;
			}
		}
	
		var tfoot = document.createElement("tfoot");
		table.appendChild(tfoot);
	
		row = document.createElement("tr");
		tfoot.appendChild(row);
		row.className = "footrow";
	
		cell = hh(Calendar._TT["SEL_DATE"], 7, 300);
		cell.className = "ttip";
		if (this.isPopup) {
			cell.ttip = Calendar._TT["DRAG_TO_MOVE"];
			cell.style.cursor = "move";
		}
		this.tooltips = cell;
	
		div = document.createElement("div");
		this.monthsCombo = div;
		div.className = "combo";
		for (i = 0; i < Calendar._MN.length; ++i) {
			var mn = document.createElement("div");
			mn.className = "label";
			mn.month = i;
			mn.appendChild(document.createTextNode(Calendar._MN[i].substr(0, 3)));
			div.appendChild(mn);
		}
		this.element.appendChild(div);
	
		div = document.createElement("div");
		this.yearsCombo = div;
		div.className = "combo";
		for (i = 0; i < 12; ++i) {
			var yr = document.createElement("div");
			yr.className = "label";
			yr.appendChild(document.createTextNode(""));
			div.appendChild(yr);
		}
		this.element.appendChild(div);
	
		this._init(this.mondayFirst, this.date);
		parent.appendChild(this.element);
	}
	
	Calendar.prototype._init = function (mondayFirst, date) {
		var today = new Date();
		var year = date.getFullYear();
		if (year < this.minYear) {
			year = this.minYear;
		} 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 = Calendar.getMonthDays(year, month);
		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.table.getElementsByTagName("tbody")[0].firstChild;
		for (var i = 0; i < 6; ++i) {
			var cell = row.firstChild;
			if (iday > no_days) {
				row.className = "emptyrow"; continue;
			} else {
				row.className = "daysrow";
				for (var j = 0; j < 7; ++j) {
					if ((!i && j < wday) || iday > no_days) {
						cell.className = "emptycell";
					} else {
						cell.firstChild.data = iday;
						cell.className = "day";
						date.setDate(iday);
						if (this.disabledHandler && this.disabledHandler(date)) {
							Calendar.addClass(cell, "disabled");
							Calendar._del_evs(cell);
						} else {
							cell.caldate = new Date(date);
							cell.ttip =
								Calendar._DN[wday + MON].substr(0, 3) +
								", " +
								Calendar._MN[month].substr(0, 3) +
								" " + iday + ", " + year;
							Calendar._add_evs(cell);
							if (iday == mday) {
								Calendar.addClass(cell, "selected");
								this.currentDateEl = cell;
							}
							if (Calendar.datesEqual(date, today)) {
								Calendar.addClass(cell, "today");
								cell.ttip += Calendar._TT["PART_TODAY"];
							}
							if (wday == SAT || wday == SUN) {
								Calendar.addClass(cell, "weekend");
							}
						}
						++wday; ++iday;
						if (wday == 7) {
							wday = 0;
						}
					}
					cell = cell.nextSibling;
				}
			}
			row = row.nextSibling;
		}
		this.title.firstChild.data = Calendar._MN[month] + ", " + year;
	};
	
	Calendar.prototype.setDate = function (date) {
		if (!Calendar.datesEqual(date, this.date)) {
			this._init(this.mondayFirst, date);
		}
	};
	
	Calendar.prototype.setMondayFirst = function (mondayFirst) {
		this._init(mondayFirst, this.date);
		this.displayWeekdays();
	};
	
	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.daynames.firstChild;
		for (var i = 0; i < 7; ++i) {
			cell.className = "day name";
			if (!i) {
				if (this.mondayFirst) {
					cell.ttip = Calendar._TT["SUN_FIRST"];
				} else {
					cell.ttip = Calendar._TT["MON_FIRST"];
				}
			}
			if (i == SUN || i == SAT) {
				Calendar.addClass(cell, "weekend");
			}
			cell.firstChild.data = Calendar._DN[i + 1 - MON].substr(0,2);
			cell = cell.nextSibling;
		}
	};
	
	Calendar.prototype.setDisabledHandler = function (unaryFunction) {
		this.disabledHandler = unaryFunction;
	};
	
	Calendar.prototype.setRange = function (a, z) {
		this.minYear = a;
		this.maxYear = z;
	};
	
	Calendar.prototype.callHandler = function () {
		if (this.yourHandler) {
			this.yourHandler(this, this.formatDate());
		}
	};
	
	Calendar.prototype.callCloseHandler = function () {
		if (this.yourCloseHandler) {
			this.yourCloseHandler(this);
		}
		this.hideShowCovered();
	};
	
	Calendar.prototype.destroy = function () {
		var el = this.element.parentNode;
		el.removeChild(this.element);
		Calendar._C = null;
		delete el;
	};
	
	Calendar.prototype.reparent = function (new_parent) {
		var el = this.element;
		el.parentNode.removeChild(el);
		new_parent.appendChild(el);
	};
	
	Calendar.prototype.show = function () {
		this.element.style.display = "block";
		this.hideShowCovered();
	};
	
	Calendar.prototype.hide = function () {
		this.element.style.display = "none";
	};
	
	Calendar.prototype.showAt = function (x, y) {
		var s = this.element.style;
		s.left = x + "px";
		s.top = y + "px";
		this.show();
	};
	
	Calendar.prototype.showAtElement = function (el) {
		var p = Calendar.getAbsolutePos(el);
		this.showAt(p.x, p.y + el.offsetHeight);
	};
	
	Calendar.prototype.hideCombos = function () {
		this.monthsCombo.style.display = "none";
		this.yearsCombo.style.display = "none";
	};
	
	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);
		Calendar.addEvent(document, "mousemove", Calendar.calDragIt);
		Calendar.addEvent(document, "mouseover", Calendar.stopEvent);
		Calendar.addEvent(document, "mouseup", Calendar.calDragEnd);
	};
	
	Calendar.prototype.setDateFormat = function (str) {
		this.dateFormat = str;
	};
	
	Calendar.prototype.formatDate = function () {
		var str = new String(this.dateFormat);
		var m = this.date.getMonth();
		var d = this.date.getDate();
		var y = this.date.getFullYear();
		var w = this.date.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['D'] = Calendar._DN[w].substr(0, 3);
		s['DD'] = Calendar._DN[w];
		s['M'] = Calendar._MN[m].substr(0, 3);
		s['MM'] = Calendar._MN[m];
		var re = /(.*)(\W|^)(d|dd|m|mm|y|yy|MM|M|DD|D)(\W|$)(.*)/;
		while (re.exec(str) != null) {
			str = RegExp.$1 + RegExp.$2 + s[RegExp.$3] + RegExp.$4 + RegExp.$5;
		}
		return str;
	};
	
	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 = a[i];
			}
			if (b[i] == 'm' || b[i] == 'mm') {
				m = a[i]-1;
			}
			if (b[i] == 'y') {
				y = a[i];
			}
			if (b[i] == 'yy') {
				y = parseInt(a[i]) + 1900;
			}
			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]) <= 12 && m == -1) {
				m = a[i]-1;
			} else if (parseInt(a[i]) > 31 && y == 0) {
				y = a[i];
			} 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 () {
		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 = 0; k < tags.length; k++) {
			var ar = document.getElementsByTagName(tags[k]);
			var cc = null;
	
			for (var i = 0; i < ar.length; i++) {
				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 ((CX1 > EX2) || (CX2 < EX1) || (CY1 > EY2) || (CY2 < EY1)) {
					cc.style.visibility = "visible";
				} else {
					cc.style.visibility = "hidden";
				}
			}
		}
	};