/*

dynDateTime @VERSION

A jQuery date time picker.

Author: Toolman
Version: @VERSION
Website: http://code.google.com/p/dyndatetime/

*/

(function($) {

$.fn.dynDateTime = function(options) {

        // plugin defaults
        $.fn.dynDateTime.defaults = {
                displayArea:  null,
                button:       null,
                eventName:    "click",
                ifFormat:     "%Y-%m-%d %H:%M:%S",
                daFormat:     "%Y-%m-%d %H:%M:%S",
                singleClick:  true,
                dateStatusFunc: null,
                dateText:     null,
                firstDay:     null,
                align:        "Br",
                range:        [1900, 2999],
                weekNumbers:  true,
                flat:         null,
                flatCallback: null,
                onSelect:     null,
                onClose:      null,
                onUpdate:     null,
                date:         null,
                showsTime:    true,
                timeFormat:   "24",
                electric:     true,
                step:         2,
                position:     null,
                position_css: 'absolute',
                cache:        false,
                showOthers:   true,
                multiple:     null,
                debug:        false
        };

        var opts = $.extend({}, $.fn.dynDateTime.defaults, options);

        return this.each(function() {

                //opts are shared per jQuery call; create per inputField closures of non-shared values for each instance
                var this_inputField = this;
                var this_displayArea = null;
                var this_button = null;
                var this_flat = null;
                if(opts.displayArea) {
                        try {
                                this_displayArea = eval("jQuery(this)" + opts.displayArea + ".get(0);");
                        } catch (err) {
                                opts.displayArea = null;
                        }
                }
                if(opts.button) {
                        try {
                                this_button = eval("jQuery(this)" + opts.button + ".get(0);");
                        } catch (err) {
                                opts.button = null;
                        }
                }
                if(opts.flat) {
                        try {
                                this_flat = eval("jQuery(this)" + opts.flat + ".get(0);");
                        } catch (err) {
                                opts.flat = null;
                        }
                }

                if (!(this_flat || opts.multiple || this_inputField || this_displayArea || this_button)) {
                        log("opts");
                        //nothing to do
                        return;
                }

                //default onSelect
                function onSelect(cal) {
                        var p = cal.opts;
                        var update = (cal.dateClicked || p.electric);
                        if (update && this_inputField) {
                                this_inputField.value = cal.date.print(p.ifFormat);
                                if (typeof this_inputField.onchange == "function")
                                this_inputField.onchange();
                        }
                        if (update && this_displayArea)
                        this_displayArea.innerHTML = cal.date.print(p.daFormat);
                        if (update && typeof p.onUpdate == "function")
                        p.onUpdate(cal);
                        if (update && p.flat) {
                                if (typeof p.flatCallback == "function")
                                p.flatCallback(cal);
                        }
                        if (update && p.singleClick && cal.dateClicked)
                        cal.callCloseHandler();
                };

                //flat setup
                if (this_flat != null) {

                        var cal = new Calendar(opts.firstDay, opts.date, opts.onSelect || onSelect);
                        cal.showsOtherMonths = opts.showOthers;
                        cal.showsTime = opts.showsTime;
                        cal.time24 = (opts.timeFormat == "24");
                        cal.opts = opts;
                        cal.weekNumbers = opts.weekNumbers;
                        cal.setRange(opts.range[0], opts.range[1]);
                        cal.setDateStatusHandler(opts.dateStatusFunc);
                        cal.getDateText = opts.dateText;
                        if (opts.ifFormat) {
                                cal.setDateFormat(opts.ifFormat);
                        }
                        if (this_inputField && typeof this_inputField.value == "string") {
                                //cal.parseDate(this_inputField.value);
                                log("rar");
                        }
                        cal.create(this_flat);
                        cal.show();
                        return;
                }

                //find the element to mount show/hide event
                var triggerEl = this_button || this_displayArea || this_inputField  ;

                //bolt on event
                triggerEl["on" + opts.eventName] = function() {
                        log("clicked");
                        var dateEl = this_inputField || this_displayArea;
                        var dateFmt = this_inputField ? opts.ifFormat : opts.daFormat;
                        var mustCreate = false;
                        var cal = window.calendar;
                        if (dateEl) {
                                var datevalue = Date.parseDate(dateEl.value || dateEl.innerHTML, dateFmt);
                                if (datevalue != NaN) {
                                        opts.date = datevalue;
                                }
                        }

                        if (!(cal && opts.cache)) {
                                window.calendar = cal = new Calendar(opts.firstDay,
                                        opts.date,
                                        opts.onSelect || onSelect,
                                        opts.onClose || function(cal) { cal.hide(); });
                                        cal.showsTime = opts.showsTime;
                                        cal.time24 = (opts.timeFormat == "24");
                                        cal.weekNumbers = opts.weekNumbers;
                                        mustCreate = true;
                                } else {
                                        if (opts.date)
                                        cal.setDate(opts.date);
                                        cal.hide();
                                }
                                if (opts.multiple) {
                                        cal.multiple = {};
                                        for (var i = opts.multiple.length; --i >= 0;) {
                                                var d = opts.multiple[i];
                                                var ds = d.print("%Y%m%d");
                                                cal.multiple[ds] = d;
                                        }
                                }
                                cal.showsOtherMonths = opts.showOthers;
                                cal.yearStep = opts.step;
                                cal.setRange(opts.range[0], opts.range[1]);
                                cal.opts = opts;
                                cal.setDateStatusHandler(opts.dateStatusFunc);
                                cal.getDateText = opts.dateText;
                                cal.setDateFormat(dateFmt);
                                if (mustCreate)
                                cal.create();
                                cal.refresh();
                                if (!opts.position)
                                cal.showAtElement(this_button || this_displayArea || this_inputField, opts.align);
                                else
                                cal.showAt(opts.position[0], opts.position[1]);
                                return false;
                        };
                });

                // private function for debugging
                function log(msg) {
                        if(opts.debug) {
                                window.loadFirebugConsole(); // file:// based access seems to disable this for me!
                                if (window.console && window.console.log ) window.console.log("dynDateTime: " + msg);
                        }
                };
        };
        })(jQuery);

        // Begin old dynarch code

/* Copyright Mihai Bazon, 2002-2005 | www.bazon.net/mishoo

*

*

*

*

*/

// $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 ? Calendar._FD : 0 ); // 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);
                                        }
                                };

/**

*/ 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 <mihai_bazon@yahoo.com> 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

/**

*/ 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 = this.opts.position_css;
        div.style.display = "none";
        div.style.zIndex = 10001;
}
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(-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;
                };

                /** Customization of CSS position for the calendar. */
                Calendar.prototype.setPositionCSS = function (s) {
                        this.opts.position_css = s;
                };

                /** 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.documentElement.scrollTop;
                                        br.x += document.documentElement.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 "%F":
                                                        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. */
                                Date.prototype.getWeekNumber = function() {
                                        var d = new Date(this.getFullYear(), this.getMonth(), this.getDate(), 0, 0, 0);
                                        var DoW = d.getDay();
                                        d.setDate(d.getDate() - (DoW + 6) % 7 + 3); // Nearest Thu
                                        var ms = d.valueOf(); // GMT
                                        d.setMonth(0);
                                        d.setDate(4); // Thu in Week 1
                                        return Math.round((ms - d.valueOf()) / (7 * 864e5)) + 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["%F"] = 1+m; // month, range 1 to 12
                                        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;