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/*  Copyright Mihai Bazon, 2002-2005  |  www.bazon.net/mishoo
 * -----------------------------------------------------------
 *
 * The DHTML Calendar, version 1.0 "It is happening again"
 *
 * Details and latest version at:
 * www.dynarch.com/projects/calendar
 *
 * This script is developed by Dynarch.com.  Visit us at www.dynarch.com.
 *
 * This script is distributed under the GNU Lesser General Public License.
 * Read the entire license text here: http://www.gnu.org/licenses/lgpl.html
 */

// $Id: calendar.js,v 1.51 2005/03/07 16:44:31 mishoo Exp $

/** The Calendar object constructor. */
Calendar = function (firstDayOfWeek, dateStr, onSelected, onClose) {
  // member variables
  this.activeDiv = null;
  this.currentDateEl = null;
  this.getDateStatus = null;
  this.getDateToolTip = null;
  this.getDateText = null;
  this.timeout = null;
  this.onSelected = onSelected || null;
  this.onClose = onClose || null;
  this.dragging = false;
  this.hidden = false;
  this.minYear = 1970;
  this.maxYear = 2050;
  this.dateFormat = Calendar._TT["DEF_DATE_FORMAT"];
  this.ttDateFormat = Calendar._TT["TT_DATE_FORMAT"];
  this.isPopup = true;
  this.weekNumbers = true;
  this.firstDayOfWeek =
    typeof firstDayOfWeek == "number" ? firstDayOfWeek : Calendar._FD; // 0 for Sunday, 1 for Monday, etc.
  this.showsOtherMonths = false;
  this.dateStr = dateStr;
  this.ar_days = null;
  this.showsTime = false;
  this.time24 = true;
  this.yearStep = 2;
  this.hiliteToday = true;
  this.multiple = null;
  // HTML elements
  this.table = null;
  this.element = null;
  this.tbody = null;
  this.firstdayname = null;
  // Combo boxes
  this.monthsCombo = null;
  this.yearsCombo = null;
  this.hilitedMonth = null;
  this.activeMonth = null;
  this.hilitedYear = null;
  this.activeYear = null;
  // Information
  this.dateClicked = false;

  // one-time initializations
  if (typeof Calendar._SDN == "undefined") {
    // table of short day names
    if (typeof Calendar._SDN_len == "undefined") Calendar._SDN_len = 3;
    var ar = new Array();
    for (var i = 8; i > 0; ) {
      ar[--i] = Calendar._DN[i].substr(0, Calendar._SDN_len);
    }
    Calendar._SDN = ar;
    // table of short month names
    if (typeof Calendar._SMN_len == "undefined") Calendar._SMN_len = 3;
    ar = new Array();
    for (var i = 12; i > 0; ) {
      ar[--i] = Calendar._MN[i].substr(0, Calendar._SMN_len);
    }
    Calendar._SMN = ar;
  }
};

// ** constants

/// "static", needed for event handlers.
Calendar._C = null;

/// detect a special case of "web browser"
Calendar.is_ie =
  /msie/i.test(navigator.userAgent) && !/opera/i.test(navigator.userAgent);

Calendar.is_ie5 = Calendar.is_ie && /msie 5\.0/i.test(navigator.userAgent);

/// detect Opera browser
Calendar.is_opera = /opera/i.test(navigator.userAgent);

/// detect KHTML-based browsers
Calendar.is_khtml = /Konqueror|Safari|KHTML/i.test(navigator.userAgent);

// BEGIN: UTILITY FUNCTIONS; beware that these might be moved into a separate
//        library, at some point.

Calendar.getAbsolutePos = function (el) {
  var SL = 0,
    ST = 0;
  var is_div = /^div$/i.test(el.tagName);
  if (is_div && el.scrollLeft) SL = el.scrollLeft;
  if (is_div && el.scrollTop) ST = el.scrollTop;
  var r = { x: el.offsetLeft - SL, y: el.offsetTop - ST };
  if (el.offsetParent) {
    var tmp = this.getAbsolutePos(el.offsetParent);
    r.x += tmp.x;
    r.y += tmp.y;
  }
  return r;
};

Calendar.isRelated = function (el, evt) {
  var related = evt.relatedTarget;
  if (!related) {
    var type = evt.type;
    if (type == "mouseover") {
      related = evt.fromElement;
    } else if (type == "mouseout") {
      related = evt.toElement;
    }
  }
  while (related) {
    if (related == el) {
      return true;
    }
    related = related.parentNode;
  }
  return false;
};

Calendar.removeClass = function (el, className) {
  if (!(el && el.className)) {
    return;
  }
  var cls = el.className.split(" ");
  var ar = new Array();
  for (var i = cls.length; i > 0; ) {
    if (cls[--i] != className) {
      ar[ar.length] = cls[i];
    }
  }
  el.className = ar.join(" ");
};

Calendar.addClass = function (el, className) {
  Calendar.removeClass(el, className);
  el.className += " " + className;
};

// FIXME: the following 2 functions totally suck, are useless and should be replaced immediately.
Calendar.getElement = function (ev) {
  var f = Calendar.is_ie ? window.event.srcElement : ev.currentTarget;
  while (f.nodeType != 1 || /^div$/i.test(f.tagName)) f = f.parentNode;
  return f;
};

Calendar.getTargetElement = function (ev) {
  var f = Calendar.is_ie ? window.event.srcElement : ev.target;
  while (f.nodeType != 1) f = f.parentNode;
  return f;
};

Calendar.stopEvent = function (ev) {
  ev || (ev = window.event);
  if (Calendar.is_ie) {
    ev.cancelBubble = true;
    ev.returnValue = false;
  } else {
    ev.preventDefault();
    ev.stopPropagation();
  }
  return false;
};

Calendar.addEvent = function (el, evname, func) {
  if (el.attachEvent) {
    // IE
    el.attachEvent("on" + evname, func);
  } else if (el.addEventListener) {
    // Gecko / W3C
    el.addEventListener(evname, func, true);
  } else {
    el["on" + evname] = func;
  }
};

Calendar.removeEvent = function (el, evname, func) {
  if (el.detachEvent) {
    // IE
    el.detachEvent("on" + evname, func);
  } else if (el.removeEventListener) {
    // Gecko / W3C
    el.removeEventListener(evname, func, true);
  } else {
    el["on" + evname] = null;
  }
};

Calendar.createElement = function (type, parent) {
  var el = null;
  if (document.createElementNS) {
    // use the XHTML namespace; IE won't normally get here unless
    // _they_ "fix" the DOM2 implementation.
    el = document.createElementNS("http://www.w3.org/1999/xhtml", type);
  } else {
    el = document.createElement(type);
  }
  if (typeof parent != "undefined") {
    parent.appendChild(el);
  }
  return el;
};

// END: UTILITY FUNCTIONS

// BEGIN: CALENDAR STATIC FUNCTIONS

/** Internal -- adds a set of events to make some element behave like a button. */
Calendar._add_evs = function (el) {
  with (Calendar) {
    addEvent(el, "mouseover", dayMouseOver);
    addEvent(el, "mousedown", dayMouseDown);
    addEvent(el, "mouseout", dayMouseOut);
    if (is_ie) {
      addEvent(el, "dblclick", dayMouseDblClick);
      el.setAttribute("unselectable", true);
    }
  }
};

Calendar.findMonth = function (el) {
  if (typeof el.month != "undefined") {
    return el;
  } else if (typeof el.parentNode.month != "undefined") {
    return el.parentNode;
  }
  return null;
};

Calendar.findYear = function (el) {
  if (typeof el.year != "undefined") {
    return el;
  } else if (typeof el.parentNode.year != "undefined") {
    return el.parentNode;
  }
  return null;
};

Calendar.showMonthsCombo = function () {
  var cal = Calendar._C;
  if (!cal) {
    return false;
  }
  var cal = cal;
  var cd = cal.activeDiv;
  var mc = cal.monthsCombo;
  if (cal.hilitedMonth) {
    Calendar.removeClass(cal.hilitedMonth, "hilite");
  }
  if (cal.activeMonth) {
    Calendar.removeClass(cal.activeMonth, "active");
  }
  var mon = cal.monthsCombo.getElementsByTagName("div")[cal.date.getMonth()];
  Calendar.addClass(mon, "active");
  cal.activeMonth = mon;
  var s = mc.style;
  s.display = "block";
  if (cd.navtype < 0) s.left = cd.offsetLeft + "px";
  else {
    var mcw = mc.offsetWidth;
    if (typeof mcw == "undefined")
      // Konqueror brain-dead techniques
      mcw = 50;
    s.left = cd.offsetLeft + cd.offsetWidth - mcw + "px";
  }
  s.top = cd.offsetTop + cd.offsetHeight + "px";
};

Calendar.showYearsCombo = function (fwd) {
  var cal = Calendar._C;
  if (!cal) {
    return false;
  }
  var cal = cal;
  var cd = cal.activeDiv;
  var yc = cal.yearsCombo;
  if (cal.hilitedYear) {
    Calendar.removeClass(cal.hilitedYear, "hilite");
  }
  if (cal.activeYear) {
    Calendar.removeClass(cal.activeYear, "active");
  }
  cal.activeYear = null;
  var Y = cal.date.getFullYear() + (fwd ? 1 : -1);
  var yr = yc.firstChild;
  var show = false;
  for (var i = 12; i > 0; --i) {
    if (Y >= cal.minYear && Y <= cal.maxYear) {
      yr.innerHTML = Y;
      yr.year = Y;
      yr.style.display = "block";
      show = true;
    } else {
      yr.style.display = "none";
    }
    yr = yr.nextSibling;
    Y += fwd ? cal.yearStep : -cal.yearStep;
  }
  if (show) {
    var s = yc.style;
    s.display = "block";
    if (cd.navtype < 0) s.left = cd.offsetLeft + "px";
    else {
      var ycw = yc.offsetWidth;
      if (typeof ycw == "undefined")
        // Konqueror brain-dead techniques
        ycw = 50;
      s.left = cd.offsetLeft + cd.offsetWidth - ycw + "px";
    }
    s.top = cd.offsetTop + cd.offsetHeight + "px";
  }
};

// event handlers

Calendar.tableMouseUp = function (ev) {
  var cal = Calendar._C;
  if (!cal) {
    return false;
  }
  if (cal.timeout) {
    clearTimeout(cal.timeout);
  }
  var el = cal.activeDiv;
  if (!el) {
    return false;
  }
  var target = Calendar.getTargetElement(ev);
  ev || (ev = window.event);
  Calendar.removeClass(el, "active");
  if (target == el || target.parentNode == el) {
    Calendar.cellClick(el, ev);
  }
  var mon = Calendar.findMonth(target);
  var date = null;
  if (mon) {
    date = new Date(cal.date);
    if (mon.month != date.getMonth()) {
      date.setMonth(mon.month);
      cal.setDate(date);
      cal.dateClicked = false;
      cal.callHandler();
    }
  } else {
    var year = Calendar.findYear(target);
    if (year) {
      date = new Date(cal.date);
      if (year.year != date.getFullYear()) {
        date.setFullYear(year.year);
        cal.setDate(date);
        cal.dateClicked = false;
        cal.callHandler();
      }
    }
  }
  with (Calendar) {
    removeEvent(document, "mouseup", tableMouseUp);
    removeEvent(document, "mouseover", tableMouseOver);
    removeEvent(document, "mousemove", tableMouseOver);
    cal._hideCombos();
    _C = null;
    return stopEvent(ev);
  }
};

Calendar.tableMouseOver = function (ev) {
  var cal = Calendar._C;
  if (!cal) {
    return;
  }
  var el = cal.activeDiv;
  var target = Calendar.getTargetElement(ev);
  if (target == el || target.parentNode == el) {
    Calendar.addClass(el, "hilite active");
    Calendar.addClass(el.parentNode, "rowhilite");
  } else {
    if (
      typeof el.navtype == "undefined" ||
      (el.navtype != 50 && (el.navtype == 0 || Math.abs(el.navtype) > 2))
    )
      Calendar.removeClass(el, "active");
    Calendar.removeClass(el, "hilite");
    Calendar.removeClass(el.parentNode, "rowhilite");
  }
  ev || (ev = window.event);
  if (el.navtype == 50 && target != el) {
    var pos = Calendar.getAbsolutePos(el);
    var w = el.offsetWidth;
    var x = ev.clientX;
    var dx;
    var decrease = true;
    if (x > pos.x + w) {
      dx = x - pos.x - w;
      decrease = false;
    } else dx = pos.x - x;

    if (dx < 0) dx = 0;
    var range = el._range;
    var current = el._current;
    var count = Math.floor(dx / 10) % range.length;
    for (var i = range.length; --i >= 0; ) if (range[i] == current) break;
    while (count-- > 0)
      if (decrease) {
        if (--i < 0) i = range.length - 1;
      } else if (++i >= range.length) i = 0;
    var newval = range[i];
    el.innerHTML = newval;

    cal.onUpdateTime();
  }
  var mon = Calendar.findMonth(target);
  if (mon) {
    if (mon.month != cal.date.getMonth()) {
      if (cal.hilitedMonth) {
        Calendar.removeClass(cal.hilitedMonth, "hilite");
      }
      Calendar.addClass(mon, "hilite");
      cal.hilitedMonth = mon;
    } else if (cal.hilitedMonth) {
      Calendar.removeClass(cal.hilitedMonth, "hilite");
    }
  } else {
    if (cal.hilitedMonth) {
      Calendar.removeClass(cal.hilitedMonth, "hilite");
    }
    var year = Calendar.findYear(target);
    if (year) {
      if (year.year != cal.date.getFullYear()) {
        if (cal.hilitedYear) {
          Calendar.removeClass(cal.hilitedYear, "hilite");
        }
        Calendar.addClass(year, "hilite");
        cal.hilitedYear = year;
      } else if (cal.hilitedYear) {
        Calendar.removeClass(cal.hilitedYear, "hilite");
      }
    } else if (cal.hilitedYear) {
      Calendar.removeClass(cal.hilitedYear, "hilite");
    }
  }
  return Calendar.stopEvent(ev);
};

Calendar.tableMouseDown = function (ev) {
  if (Calendar.getTargetElement(ev) == Calendar.getElement(ev)) {
    return Calendar.stopEvent(ev);
  }
};

Calendar.calDragIt = function (ev) {
  var cal = Calendar._C;
  if (!(cal && cal.dragging)) {
    return false;
  }
  var posX;
  var posY;
  if (Calendar.is_ie) {
    posY = window.event.clientY + document.body.scrollTop;
    posX = window.event.clientX + document.body.scrollLeft;
  } else {
    posX = ev.pageX;
    posY = ev.pageY;
  }
  cal.hideShowCovered();
  var st = cal.element.style;
  st.left = posX - cal.xOffs + "px";
  st.top = posY - cal.yOffs + "px";
  return Calendar.stopEvent(ev);
};

Calendar.calDragEnd = function (ev) {
  var cal = Calendar._C;
  if (!cal) {
    return false;
  }
  cal.dragging = false;
  with (Calendar) {
    removeEvent(document, "mousemove", calDragIt);
    removeEvent(document, "mouseup", calDragEnd);
    tableMouseUp(ev);
  }
  cal.hideShowCovered();
};

Calendar.dayMouseDown = function (ev) {
  var el = Calendar.getElement(ev);
  if (el.disabled) {
    return false;
  }
  var cal = el.calendar;
  cal.activeDiv = el;
  Calendar._C = cal;
  if (el.navtype != 300)
    with (Calendar) {
      if (el.navtype == 50) {
        el._current = el.innerHTML;
        addEvent(document, "mousemove", tableMouseOver);
      } else
        addEvent(
          document,
          Calendar.is_ie5 ? "mousemove" : "mouseover",
          tableMouseOver
        );
      addClass(el, "hilite active");
      addEvent(document, "mouseup", tableMouseUp);
    }
  else if (cal.isPopup) {
    cal._dragStart(ev);
  }
  if (el.navtype == -1 || el.navtype == 1) {
    if (cal.timeout) clearTimeout(cal.timeout);
    cal.timeout = setTimeout("Calendar.showMonthsCombo()", 250);
  } else if (el.navtype == -2 || el.navtype == 2) {
    if (cal.timeout) clearTimeout(cal.timeout);
    cal.timeout = setTimeout(
      el.navtype > 0
        ? "Calendar.showYearsCombo(true)"
        : "Calendar.showYearsCombo(false)",
      250
    );
  } else {
    cal.timeout = null;
  }
  return Calendar.stopEvent(ev);
};

Calendar.dayMouseDblClick = function (ev) {
  Calendar.cellClick(Calendar.getElement(ev), ev || window.event);
  if (Calendar.is_ie) {
    document.selection.empty();
  }
};

Calendar.dayMouseOver = function (ev) {
  var el = Calendar.getElement(ev);
  if (Calendar.isRelated(el, ev) || Calendar._C || el.disabled) {
    return false;
  }
  if (el.ttip) {
    if (el.ttip.substr(0, 1) == "_") {
      el.ttip = el.caldate.print(el.calendar.ttDateFormat) + el.ttip.substr(1);
    }
    el.calendar.tooltips.innerHTML = el.ttip;
  }
  if (el.navtype != 300) {
    Calendar.addClass(el, "hilite");
    if (el.caldate) {
      Calendar.addClass(el.parentNode, "rowhilite");
    }
  }
  return Calendar.stopEvent(ev);
};

Calendar.dayMouseOut = function (ev) {
  with (Calendar) {
    var el = getElement(ev);
    if (isRelated(el, ev) || _C || el.disabled) return false;
    removeClass(el, "hilite");
    if (el.caldate) removeClass(el.parentNode, "rowhilite");
    if (el.calendar) el.calendar.tooltips.innerHTML = _TT["SEL_DATE"];
    return stopEvent(ev);
  }
};

/**
 *  A generic "click" handler :) handles all types of buttons defined in this
 *  calendar.
 */
Calendar.cellClick = function (el, ev) {
  var cal = el.calendar;
  var closing = false;
  var newdate = false;
  var date = null;
  if (typeof el.navtype == "undefined") {
    if (cal.currentDateEl) {
      Calendar.removeClass(cal.currentDateEl, "selected");
      Calendar.addClass(el, "selected");
      closing = cal.currentDateEl == el;
      if (!closing) {
        cal.currentDateEl = el;
      }
    }
    cal.date.setDateOnly(el.caldate);
    date = cal.date;
    var other_month = !(cal.dateClicked = !el.otherMonth);
    if (!other_month && !cal.currentDateEl)
      cal._toggleMultipleDate(new Date(date));
    else newdate = !el.disabled;
    // a date was clicked
    if (other_month) cal._init(cal.firstDayOfWeek, date);
  } else {
    if (el.navtype == 200) {
      Calendar.removeClass(el, "hilite");
      cal.callCloseHandler();
      return;
    }
    date = new Date(cal.date);
    if (el.navtype == 0) date.setDateOnly(new Date()); // TODAY
    // unless "today" was clicked, we assume no date was clicked so
    // the selected handler will know not to close the calenar when
    // in single-click mode.
    // cal.dateClicked = (el.navtype == 0);
    cal.dateClicked = false;
    var year = date.getFullYear();
    var mon = date.getMonth();
    function setMonth(m) {
      var day = date.getDate();
      var max = date.getMonthDays(m);
      if (day > max) {
        date.setDate(max);
      }
      date.setMonth(m);
    }
    switch (el.navtype) {
      case 400:
        Calendar.removeClass(el, "hilite");
        var text = Calendar._TT["ABOUT"];
        if (typeof text != "undefined") {
          text += cal.showsTime ? Calendar._TT["ABOUT_TIME"] : "";
        } else {
          // FIXME: this should be removed as soon as lang files get updated!
          text =
            "Help and about box text is not translated into this language.\n" +
            "If you know this language and you feel generous please update\n" +
            'the corresponding file in "lang" subdir to match calendar-en.js\n' +
            "and send it back to <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

/**
 *  This function creates the calendar inside the given parent.  If _par is
 *  null than it creates a popup calendar inside the BODY element.  If _par is
 *  an element, be it BODY, then it creates a non-popup calendar (still
 *  hidden).  Some properties need to be set before calling this function.
 */
Calendar.prototype.create = function (_par) {
  var parent = null;
  if (!_par) {
    // default parent is the document body, in which case we create
    // a popup calendar.
    parent = document.getElementsByTagName("body")[0];
    this.isPopup = true;
  } else {
    parent = _par;
    this.isPopup = false;
  }
  this.date = this.dateStr ? new Date(this.dateStr) : new Date();

  var table = Calendar.createElement("table");
  this.table = table;
  table.cellSpacing = 0;
  table.cellPadding = 0;
  table.calendar = this;
  Calendar.addEvent(table, "mousedown", Calendar.tableMouseDown);

  var div = Calendar.createElement("div");
  this.element = div;
  div.className = "calendar";
  if (this.isPopup) {
    div.style.position = "absolute";
    div.style.display = "none";
  }
  div.appendChild(table);

  var thead = Calendar.createElement("thead", table);
  var cell = null;
  var row = null;

  var cal = this;
  var hh = function (text, cs, navtype) {
    cell = Calendar.createElement("td", row);
    cell.colSpan = cs;
    cell.className = "button";
    if (navtype != 0 && Math.abs(navtype) <= 2) cell.className += " nav";
    Calendar._add_evs(cell);
    cell.calendar = cal;
    cell.navtype = navtype;
    cell.innerHTML = "<div unselectable='on'>" + text + "</div>";
    return cell;
  };

  row = Calendar.createElement("tr", thead);
  var title_length = 6;
  this.isPopup && --title_length;
  this.weekNumbers && ++title_length;

  hh("?", 1, 400).ttip = Calendar._TT["INFO"];
  this.title = hh("", title_length, 300);
  this.title.className = "title";
  if (this.isPopup) {
    this.title.ttip = Calendar._TT["DRAG_TO_MOVE"];
    this.title.style.cursor = "move";
    hh("&#x00d7;", 1, 200).ttip = Calendar._TT["CLOSE"];
  }

  row = Calendar.createElement("tr", thead);
  row.className = "headrow";

  this._nav_py = hh("&#x00ab;", 1, -2);
  this._nav_py.ttip = Calendar._TT["PREV_YEAR"];

  this._nav_pm = hh("&#x2039;", 1, -1);
  this._nav_pm.ttip = Calendar._TT["PREV_MONTH"];

  this._nav_now = hh(Calendar._TT["TODAY"], this.weekNumbers ? 4 : 3, 0);
  this._nav_now.ttip = Calendar._TT["GO_TODAY"];

  this._nav_nm = hh("&#x203a;", 1, 1);
  this._nav_nm.ttip = Calendar._TT["NEXT_MONTH"];

  this._nav_ny = hh("&#x00bb;", 1, 2);
  this._nav_ny.ttip = Calendar._TT["NEXT_YEAR"];

  // day names
  row = Calendar.createElement("tr", thead);
  row.className = "daynames";
  if (this.weekNumbers) {
    cell = Calendar.createElement("td", row);
    cell.className = "name wn";
    cell.innerHTML = Calendar._TT["WK"];
  }
  for (var i = 7; i > 0; --i) {
    cell = Calendar.createElement("td", row);
    if (!i) {
      cell.navtype = 100;
      cell.calendar = this;
      Calendar._add_evs(cell);
    }
  }
  this.firstdayname = this.weekNumbers
    ? row.firstChild.nextSibling
    : row.firstChild;
  this._displayWeekdays();

  var tbody = Calendar.createElement("tbody", table);
  this.tbody = tbody;

  for (i = 6; i > 0; --i) {
    row = Calendar.createElement("tr", tbody);
    if (this.weekNumbers) {
      cell = Calendar.createElement("td", row);
    }
    for (var j = 7; j > 0; --j) {
      cell = Calendar.createElement("td", row);
      cell.calendar = this;
      Calendar._add_evs(cell);
    }
  }

  if (this.showsTime) {
    row = Calendar.createElement("tr", tbody);
    row.className = "time";

    cell = Calendar.createElement("td", row);
    cell.className = "time";
    cell.colSpan = 2;
    cell.innerHTML = Calendar._TT["TIME"] || "&nbsp;";

    cell = Calendar.createElement("td", row);
    cell.className = "time";
    cell.colSpan = this.weekNumbers ? 4 : 3;

    (function () {
      function makeTimePart(className, init, range_start, range_end) {
        var part = Calendar.createElement("span", cell);
        part.className = className;
        part.innerHTML = init;
        part.calendar = cal;
        part.ttip = Calendar._TT["TIME_PART"];
        part.navtype = 50;
        part._range = [];
        if (typeof range_start != "number") part._range = range_start;
        else {
          for (var i = range_start; i <= range_end; ++i) {
            var txt;
            if (i < 10 && range_end >= 10) txt = "0" + i;
            else txt = "" + i;
            part._range[part._range.length] = txt;
          }
        }
        Calendar._add_evs(part);
        return part;
      }
      var hrs = cal.date.getHours();
      var mins = cal.date.getMinutes();
      var t12 = !cal.time24;
      var pm = hrs > 12;
      if (t12 && pm) hrs -= 12;
      var H = makeTimePart("hour", hrs, t12 ? 1 : 0, t12 ? 12 : 23);
      var span = Calendar.createElement("span", cell);
      span.innerHTML = ":";
      span.className = "colon";
      var M = makeTimePart("minute", mins, 0, 59);
      var AP = null;
      cell = Calendar.createElement("td", row);
      cell.className = "time";
      cell.colSpan = 2;
      if (t12) AP = makeTimePart("ampm", pm ? "pm" : "am", ["am", "pm"]);
      else cell.innerHTML = "&nbsp;";

      cal.onSetTime = function () {
        var pm,
          hrs = this.date.getHours(),
          mins = this.date.getMinutes();
        if (t12) {
          pm = hrs >= 12;
          if (pm) hrs -= 12;
          if (hrs == 0) hrs = 12;
          AP.innerHTML = pm ? "pm" : "am";
        }
        H.innerHTML = hrs < 10 ? "0" + hrs : hrs;
        M.innerHTML = mins < 10 ? "0" + mins : mins;
      };

      cal.onUpdateTime = function () {
        var date = this.date;
        var h = parseInt(H.innerHTML, 10);
        if (t12) {
          if (/pm/i.test(AP.innerHTML) && h < 12) h += 12;
          else if (/am/i.test(AP.innerHTML) && h == 12) h = 0;
        }
        var d = date.getDate();
        var m = date.getMonth();
        var y = date.getFullYear();
        date.setHours(h);
        date.setMinutes(parseInt(M.innerHTML, 10));
        date.setFullYear(y);
        date.setMonth(m);
        date.setDate(d);
        this.dateClicked = false;
        this.callHandler();
      };
    })();
  } else {
    this.onSetTime = this.onUpdateTime = function () {};
  }

  var tfoot = Calendar.createElement("tfoot", table);

  row = Calendar.createElement("tr", tfoot);
  row.className = "footrow";

  cell = hh(Calendar._TT["SEL_DATE"], this.weekNumbers ? 8 : 7, 300);
  cell.className = "ttip";
  if (this.isPopup) {
    cell.ttip = Calendar._TT["DRAG_TO_MOVE"];
    cell.style.cursor = "move";
  }
  this.tooltips = cell;

  div = Calendar.createElement("div", this.element);
  this.monthsCombo = div;
  div.className = "combo";
  for (i = 0; i < Calendar._MN.length; ++i) {
    var mn = Calendar.createElement("div");
    mn.className = Calendar.is_ie ? "label-IEfix" : "label";
    mn.month = i;
    mn.innerHTML = Calendar._SMN[i];
    div.appendChild(mn);
  }

  div = Calendar.createElement("div", this.element);
  this.yearsCombo = div;
  div.className = "combo";
  for (i = 12; i > 0; --i) {
    var yr = Calendar.createElement("div");
    yr.className = Calendar.is_ie ? "label-IEfix" : "label";
    div.appendChild(yr);
  }

  this._init(this.firstDayOfWeek, this.date);
  parent.appendChild(this.element);
};

/** keyboard navigation, only for popup calendars */
Calendar._keyEvent = function (ev) {
  var cal = window._dynarch_popupCalendar;
  if (!cal || cal.multiple) return false;
  Calendar.is_ie && (ev = window.event);
  var act = Calendar.is_ie || ev.type == "keypress",
    K = ev.keyCode;
  if (ev.ctrlKey) {
    switch (K) {
      case 37: // KEY left
        act && Calendar.cellClick(cal._nav_pm);
        break;
      case 38: // KEY up
        act && Calendar.cellClick(cal._nav_py);
        break;
      case 39: // KEY right
        act && Calendar.cellClick(cal._nav_nm);
        break;
      case 40: // KEY down
        act && Calendar.cellClick(cal._nav_ny);
        break;
      default:
        return false;
    }
  } else
    switch (K) {
      case 32: // KEY space (now)
        Calendar.cellClick(cal._nav_now);
        break;
      case 27: // KEY esc
        act && cal.callCloseHandler();
        break;
      case 37: // KEY left
      case 38: // KEY up
      case 39: // KEY right
      case 40: // KEY down
        if (act) {
          var prev, x, y, ne, el, step;
          prev = K == 37 || K == 38;
          step = K == 37 || K == 39 ? 1 : 7;
          function setVars() {
            el = cal.currentDateEl;
            var p = el.pos;
            x = p & 15;
            y = p >> 4;
            ne = cal.ar_days[y][x];
          }
          setVars();
          function prevMonth() {
            var date = new Date(cal.date);
            date.setDate(date.getDate() - step);
            cal.setDate(date);
          }
          function nextMonth() {
            var date = new Date(cal.date);
            date.setDate(date.getDate() + step);
            cal.setDate(date);
          }
          while (1) {
            switch (K) {
              case 37: // KEY left
                if (--x >= 0) ne = cal.ar_days[y][x];
                else {
                  x = 6;
                  K = 38;
                  continue;
                }
                break;
              case 38: // KEY up
                if (--y >= 0) ne = cal.ar_days[y][x];
                else {
                  prevMonth();
                  setVars();
                }
                break;
              case 39: // KEY right
                if (++x < 7) ne = cal.ar_days[y][x];
                else {
                  x = 0;
                  K = 40;
                  continue;
                }
                break;
              case 40: // KEY down
                if (++y < cal.ar_days.length) ne = cal.ar_days[y][x];
                else {
                  nextMonth();
                  setVars();
                }
                break;
            }
            break;
          }
          if (ne) {
            if (!ne.disabled) Calendar.cellClick(ne);
            else if (prev) prevMonth();
            else nextMonth();
          }
        }
        break;
      case 13: // KEY enter
        if (act) Calendar.cellClick(cal.currentDateEl, ev);
        break;
      default:
        return false;
    }
  return Calendar.stopEvent(ev);
};

/**
 *  (RE)Initializes the calendar to the given date and firstDayOfWeek
 */
Calendar.prototype._init = function (firstDayOfWeek, date) {
  var today = new Date(),
    TY = today.getFullYear(),
    TM = today.getMonth(),
    TD = today.getDate();
  this.table.style.visibility = "hidden";
  var year = date.getFullYear();
  if (year < this.minYear) {
    year = this.minYear;
    date.setFullYear(year);
  } else if (year > this.maxYear) {
    year = this.maxYear;
    date.setFullYear(year);
  }
  this.firstDayOfWeek = firstDayOfWeek;
  this.date = new Date(date);
  var month = date.getMonth();
  var mday = date.getDate();
  var no_days = date.getMonthDays();

  // calendar voodoo for computing the first day that would actually be
  // displayed in the calendar, even if it's from the previous month.
  // WARNING: this is magic. ;-)
  date.setDate(1);
  var day1 = (date.getDay() - this.firstDayOfWeek) % 7;
  if (day1 < 0) day1 += 7;
  date.setDate(-day1);
  date.setDate(date.getDate() + 1);

  var row = this.tbody.firstChild;
  var MN = Calendar._SMN[month];
  var ar_days = (this.ar_days = new Array());
  var weekend = Calendar._TT["WEEKEND"];
  var dates = this.multiple ? (this.datesCells = {}) : null;
  for (var i = 0; i < 6; ++i, row = row.nextSibling) {
    var cell = row.firstChild;
    if (this.weekNumbers) {
      cell.className = "day wn";
      cell.innerHTML = date.getWeekNumber();
      cell = cell.nextSibling;
    }
    row.className = "daysrow";
    var hasdays = false,
      iday,
      dpos = (ar_days[i] = []);
    for (
      var j = 0;
      j < 7;
      ++j, cell = cell.nextSibling, date.setDate(iday + 1)
    ) {
      iday = date.getDate();
      var wday = date.getDay();
      cell.className = "day";
      cell.pos = (i << 4) | j;
      dpos[j] = cell;
      var current_month = date.getMonth() == month;
      if (!current_month) {
        if (this.showsOtherMonths) {
          cell.className += " othermonth";
          cell.otherMonth = true;
        } else {
          cell.className = "emptycell";
          cell.innerHTML = "&nbsp;";
          cell.disabled = true;
          continue;
        }
      } else {
        cell.otherMonth = false;
        hasdays = true;
      }
      cell.disabled = false;
      cell.innerHTML = this.getDateText ? this.getDateText(date, iday) : iday;
      if (dates) dates[date.print("%Y%m%d")] = cell;
      if (this.getDateStatus) {
        var status = this.getDateStatus(date, year, month, iday);
        if (this.getDateToolTip) {
          var toolTip = this.getDateToolTip(date, year, month, iday);
          if (toolTip) cell.title = toolTip;
        }
        if (status === true) {
          cell.className += " disabled";
          cell.disabled = true;
        } else {
          if (/disabled/i.test(status)) cell.disabled = true;
          cell.className += " " + status;
        }
      }
      if (!cell.disabled) {
        cell.caldate = new Date(date);
        cell.ttip = "_";
        if (
          !this.multiple &&
          current_month &&
          iday == mday &&
          this.hiliteToday
        ) {
          cell.className += " selected";
          this.currentDateEl = cell;
        }
        if (date.getFullYear() == TY && date.getMonth() == TM && iday == TD) {
          cell.className += " today";
          cell.ttip += Calendar._TT["PART_TODAY"];
        }
        if (weekend.indexOf(wday.toString()) != -1)
          cell.className += cell.otherMonth ? " oweekend" : " weekend";
      }
    }
    if (!(hasdays || this.showsOtherMonths)) row.className = "emptyrow";
  }
  this.title.innerHTML = Calendar._MN[month] + ", " + year;
  this.onSetTime();
  this.table.style.visibility = "visible";
  this._initMultipleDates();
  // PROFILE
  // this.tooltips.innerHTML = "Generated in " + ((new Date()) - today) + " ms";
};

Calendar.prototype._initMultipleDates = function () {
  if (this.multiple) {
    for (var i in this.multiple) {
      var cell = this.datesCells[i];
      var d = this.multiple[i];
      if (!d) continue;
      if (cell) cell.className += " selected";
    }
  }
};

Calendar.prototype._toggleMultipleDate = function (date) {
  if (this.multiple) {
    var ds = date.print("%Y%m%d");
    var cell = this.datesCells[ds];
    if (cell) {
      var d = this.multiple[ds];
      if (!d) {
        Calendar.addClass(cell, "selected");
        this.multiple[ds] = date;
      } else {
        Calendar.removeClass(cell, "selected");
        delete this.multiple[ds];
      }
    }
  }
};

Calendar.prototype.setDateToolTipHandler = function (unaryFunction) {
  this.getDateToolTip = unaryFunction;
};

/**
 *  Calls _init function above for going to a certain date (but only if the
 *  date is different than the currently selected one).
 */
Calendar.prototype.setDate = function (date) {
  if (!date.equalsTo(this.date)) {
    this._init(this.firstDayOfWeek, date);
  }
};

/**
 *  Refreshes the calendar.  Useful if the "disabledHandler" function is
 *  dynamic, meaning that the list of disabled date can change at runtime.
 *  Just * call this function if you think that the list of disabled dates
 *  should * change.
 */
Calendar.prototype.refresh = function () {
  this._init(this.firstDayOfWeek, this.date);
};

/** Modifies the "firstDayOfWeek" parameter (pass 0 for Synday, 1 for Monday, etc.). */
Calendar.prototype.setFirstDayOfWeek = function (firstDayOfWeek) {
  this._init(firstDayOfWeek, this.date);
  this._displayWeekdays();
};

/**
 *  Allows customization of what dates are enabled.  The "unaryFunction"
 *  parameter must be a function object that receives the date (as a JS Date
 *  object) and returns a boolean value.  If the returned value is true then
 *  the passed date will be marked as disabled.
 */
Calendar.prototype.setDateStatusHandler =
  Calendar.prototype.setDisabledHandler = function (unaryFunction) {
    this.getDateStatus = unaryFunction;
  };

/** Customization of allowed year range for the calendar. */
Calendar.prototype.setRange = function (a, z) {
  this.minYear = a;
  this.maxYear = z;
};

/** Calls the first user handler (selectedHandler). */
Calendar.prototype.callHandler = function () {
  if (this.onSelected) {
    this.onSelected(this, this.date.print(this.dateFormat));
  }
};

/** Calls the second user handler (closeHandler). */
Calendar.prototype.callCloseHandler = function () {
  if (this.onClose) {
    this.onClose(this);
  }
  this.hideShowCovered();
};

/** Removes the calendar object from the DOM tree and destroys it. */
Calendar.prototype.destroy = function () {
  var el = this.element.parentNode;
  el.removeChild(this.element);
  Calendar._C = null;
  window._dynarch_popupCalendar = null;
};

/**
 *  Moves the calendar element to a different section in the DOM tree (changes
 *  its parent).
 */
Calendar.prototype.reparent = function (new_parent) {
  var el = this.element;
  el.parentNode.removeChild(el);
  new_parent.appendChild(el);
};

// This gets called when the user presses a mouse button anywhere in the
// document, if the calendar is shown.  If the click was outside the open
// calendar this function closes it.
Calendar._checkCalendar = function (ev) {
  var calendar = window._dynarch_popupCalendar;
  if (!calendar) {
    return false;
  }
  var el = Calendar.is_ie
    ? Calendar.getElement(ev)
    : Calendar.getTargetElement(ev);
  for (; el != null && el != calendar.element; el = el.parentNode);
  if (el == null) {
    // calls closeHandler which should hide the calendar.
    window._dynarch_popupCalendar.callCloseHandler();
    return Calendar.stopEvent(ev);
  }
};

/** Shows the calendar. */
Calendar.prototype.show = function () {
  var rows = this.table.getElementsByTagName("tr");
  for (var i = rows.length; i > 0; ) {
    var row = rows[--i];
    Calendar.removeClass(row, "rowhilite");
    var cells = row.getElementsByTagName("td");
    for (var j = cells.length; j > 0; ) {
      var cell = cells[--j];
      Calendar.removeClass(cell, "hilite");
      Calendar.removeClass(cell, "active");
    }
  }
  this.element.style.display = "block";
  this.hidden = false;
  if (this.isPopup) {
    window._dynarch_popupCalendar = this;
    Calendar.addEvent(document, "keydown", Calendar._keyEvent);
    Calendar.addEvent(document, "keypress", Calendar._keyEvent);
    Calendar.addEvent(document, "mousedown", Calendar._checkCalendar);
  }
  this.hideShowCovered();
};

/**
 *  Hides the calendar.  Also removes any "hilite" from the class of any TD
 *  element.
 */
Calendar.prototype.hide = function () {
  if (this.isPopup) {
    Calendar.removeEvent(document, "keydown", Calendar._keyEvent);
    Calendar.removeEvent(document, "keypress", Calendar._keyEvent);
    Calendar.removeEvent(document, "mousedown", Calendar._checkCalendar);
  }
  this.element.style.display = "none";
  this.hidden = true;
  this.hideShowCovered();
};

/**
 *  Shows the calendar at a given absolute position (beware that, depending on
 *  the calendar element style -- position property -- this might be relative
 *  to the parent's containing rectangle).
 */
Calendar.prototype.showAt = function (x, y) {
  var s = this.element.style;
  s.left = x + "px";
  s.top = y + "px";
  this.show();
};

/** Shows the calendar near a given element. */
Calendar.prototype.showAtElement = function (el, opts) {
  var self = this;
  var p = Calendar.getAbsolutePos(el);
  if (!opts || typeof opts != "string") {
    this.showAt(p.x, p.y + el.offsetHeight);
    return true;
  }
  function fixPosition(box) {
    if (box.x < 0) box.x = 0;
    if (box.y < 0) box.y = 0;
    var cp = document.createElement("div");
    var s = cp.style;
    s.position = "absolute";
    s.right = s.bottom = s.width = s.height = "0px";
    document.body.appendChild(cp);
    var br = Calendar.getAbsolutePos(cp);
    document.body.removeChild(cp);
    if (Calendar.is_ie) {
      br.y += document.body.scrollTop;
      br.x += document.body.scrollLeft;
    } else {
      br.y += window.scrollY;
      br.x += window.scrollX;
    }
    var tmp = box.x + box.width - br.x;
    if (tmp > 0) box.x -= tmp;
    tmp = box.y + box.height - br.y;
    if (tmp > 0) box.y -= tmp;
  }
  this.element.style.display = "block";
  Calendar.continuation_for_the_fucking_khtml_browser = function () {
    var w = self.element.offsetWidth;
    var h = self.element.offsetHeight;
    self.element.style.display = "none";
    var valign = opts.substr(0, 1);
    var halign = "l";
    if (opts.length > 1) {
      halign = opts.substr(1, 1);
    }
    // vertical alignment
    switch (valign) {
      case "T":
        p.y -= h;
        break;
      case "B":
        p.y += el.offsetHeight;
        break;
      case "C":
        p.y += (el.offsetHeight - h) / 2;
        break;
      case "t":
        p.y += el.offsetHeight - h;
        break;
      case "b":
        break; // already there
    }
    // horizontal alignment
    switch (halign) {
      case "L":
        p.x -= w;
        break;
      case "R":
        p.x += el.offsetWidth;
        break;
      case "C":
        p.x += (el.offsetWidth - w) / 2;
        break;
      case "l":
        p.x += el.offsetWidth - w;
        break;
      case "r":
        break; // already there
    }
    p.width = w;
    p.height = h + 40;
    self.monthsCombo.style.display = "none";
    fixPosition(p);
    self.showAt(p.x, p.y);
  };
  if (Calendar.is_khtml)
    setTimeout("Calendar.continuation_for_the_fucking_khtml_browser()", 10);
  else Calendar.continuation_for_the_fucking_khtml_browser();
};

/** Customizes the date format. */
Calendar.prototype.setDateFormat = function (str) {
  this.dateFormat = str;
};

/** Customizes the tooltip date format. */
Calendar.prototype.setTtDateFormat = function (str) {
  this.ttDateFormat = str;
};

/**
 *  Tries to identify the date represented in a string.  If successful it also
 *  calls this.setDate which moves the calendar to the given date.
 */
Calendar.prototype.parseDate = function (str, fmt) {
  if (!fmt) fmt = this.dateFormat;
  this.setDate(Date.parseDate(str, fmt));
};

Calendar.prototype.hideShowCovered = function () {
  if (!Calendar.is_ie && !Calendar.is_opera) return;
  function getVisib(obj) {
    var value = obj.style.visibility;
    if (!value) {
      if (
        document.defaultView &&
        typeof document.defaultView.getComputedStyle == "function"
      ) {
        // Gecko, W3C
        if (!Calendar.is_khtml)
          value = document.defaultView
            .getComputedStyle(obj, "")
            .getPropertyValue("visibility");
        else value = "";
      } else if (obj.currentStyle) {
        // IE
        value = obj.currentStyle.visibility;
      } else value = "";
    }
    return value;
  }

  var tags = new Array("applet", "iframe", "select");
  var el = this.element;

  var p = Calendar.getAbsolutePos(el);
  var EX1 = p.x;
  var EX2 = el.offsetWidth + EX1;
  var EY1 = p.y;
  var EY2 = el.offsetHeight + EY1;

  for (var k = tags.length; k > 0; ) {
    var ar = document.getElementsByTagName(tags[--k]);
    var cc = null;

    for (var i = ar.length; i > 0; ) {
      cc = ar[--i];

      p = Calendar.getAbsolutePos(cc);
      var CX1 = p.x;
      var CX2 = cc.offsetWidth + CX1;
      var CY1 = p.y;
      var CY2 = cc.offsetHeight + CY1;

      if (this.hidden || CX1 > EX2 || CX2 < EX1 || CY1 > EY2 || CY2 < EY1) {
        if (!cc.__msh_save_visibility) {
          cc.__msh_save_visibility = getVisib(cc);
        }
        cc.style.visibility = cc.__msh_save_visibility;
      } else {
        if (!cc.__msh_save_visibility) {
          cc.__msh_save_visibility = getVisib(cc);
        }
        cc.style.visibility = "hidden";
      }
    }
  }
};

/** Internal function; it displays the bar with the names of the weekday. */
Calendar.prototype._displayWeekdays = function () {
  var fdow = this.firstDayOfWeek;
  var cell = this.firstdayname;
  var weekend = Calendar._TT["WEEKEND"];
  for (var i = 0; i < 7; ++i) {
    cell.className = "day name";
    var realday = (i + fdow) % 7;
    if (i) {
      cell.ttip = Calendar._TT["DAY_FIRST"].replace(
        "%s",
        Calendar._DN[realday]
      );
      cell.navtype = 100;
      cell.calendar = this;
      cell.fdow = realday;
      Calendar._add_evs(cell);
    }
    if (weekend.indexOf(realday.toString()) != -1) {
      Calendar.addClass(cell, "weekend");
    }
    cell.innerHTML = Calendar._SDN[(i + fdow) % 7];
    cell = cell.nextSibling;
  }
};

/** Internal function.  Hides all combo boxes that might be displayed. */
Calendar.prototype._hideCombos = function () {
  this.monthsCombo.style.display = "none";
  this.yearsCombo.style.display = "none";
};

/** Internal function.  Starts dragging the element. */
Calendar.prototype._dragStart = function (ev) {
  if (this.dragging) {
    return;
  }
  this.dragging = true;
  var posX;
  var posY;
  if (Calendar.is_ie) {
    posY = window.event.clientY + document.body.scrollTop;
    posX = window.event.clientX + document.body.scrollLeft;
  } else {
    posY = ev.clientY + window.scrollY;
    posX = ev.clientX + window.scrollX;
  }
  var st = this.element.style;
  this.xOffs = posX - parseInt(st.left);
  this.yOffs = posY - parseInt(st.top);
  with (Calendar) {
    addEvent(document, "mousemove", calDragIt);
    addEvent(document, "mouseup", calDragEnd);
  }
};

// BEGIN: DATE OBJECT PATCHES

/** Adds the number of days array to the Date object. */
Date._MD = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);

/** Constants used for time computations */
Date.SECOND = 1000 /* milliseconds */;
Date.MINUTE = 60 * Date.SECOND;
Date.HOUR = 60 * Date.MINUTE;
Date.DAY = 24 * Date.HOUR;
Date.WEEK = 7 * Date.DAY;

Date.parseDate = function (str, fmt) {
  var today = new Date();
  var y = 0;
  var m = -1;
  var d = 0;
  var a = str.split(/\W+/);
  var b = fmt.match(/%./g);
  var i = 0,
    j = 0;
  var hr = 0;
  var min = 0;
  for (i = 0; i < a.length; ++i) {
    if (!a[i]) continue;
    switch (b[i]) {
      case "%d":
      case "%e":
        d = parseInt(a[i], 10);
        break;

      case "%m":
        m = parseInt(a[i], 10) - 1;
        break;

      case "%Y":
      case "%y":
        y = parseInt(a[i], 10);
        y < 100 && (y += y > 29 ? 1900 : 2000);
        break;

      case "%b":
      case "%B":
        for (j = 0; j < 12; ++j) {
          if (
            Calendar._MN[j].substr(0, a[i].length).toLowerCase() ==
            a[i].toLowerCase()
          ) {
            m = j;
            break;
          }
        }
        break;

      case "%H":
      case "%I":
      case "%k":
      case "%l":
        hr = parseInt(a[i], 10);
        break;

      case "%P":
      case "%p":
        if (/pm/i.test(a[i]) && hr < 12) hr += 12;
        else if (/am/i.test(a[i]) && hr >= 12) hr -= 12;
        break;

      case "%M":
        min = parseInt(a[i], 10);
        break;
    }
  }
  if (isNaN(y)) y = today.getFullYear();
  if (isNaN(m)) m = today.getMonth();
  if (isNaN(d)) d = today.getDate();
  if (isNaN(hr)) hr = today.getHours();
  if (isNaN(min)) min = today.getMinutes();
  if (y != 0 && m != -1 && d != 0) return new Date(y, m, d, hr, min, 0);
  y = 0;
  m = -1;
  d = 0;
  for (i = 0; i < a.length; ++i) {
    if (a[i].search(/[a-zA-Z]+/) != -1) {
      var t = -1;
      for (j = 0; j < 12; ++j) {
        if (
          Calendar._MN[j].substr(0, a[i].length).toLowerCase() ==
          a[i].toLowerCase()
        ) {
          t = j;
          break;
        }
      }
      if (t != -1) {
        if (m != -1) {
          d = m + 1;
        }
        m = t;
      }
    } else if (parseInt(a[i], 10) <= 12 && m == -1) {
      m = a[i] - 1;
    } else if (parseInt(a[i], 10) > 31 && y == 0) {
      y = parseInt(a[i], 10);
      y < 100 && (y += y > 29 ? 1900 : 2000);
    } else if (d == 0) {
      d = a[i];
    }
  }
  if (y == 0) y = today.getFullYear();
  if (m != -1 && d != 0) return new Date(y, m, d, hr, min, 0);
  return today;
};

/** Returns the number of days in the current month */
Date.prototype.getMonthDays = function (month) {
  var year = this.getFullYear();
  if (typeof month == "undefined") {
    month = this.getMonth();
  }
  if (0 == year % 4 && (0 != year % 100 || 0 == year % 400) && month == 1) {
    return 29;
  } else {
    return Date._MD[month];
  }
};

/** Returns the number of day in the year. */
Date.prototype.getDayOfYear = function () {
  var now = new Date(
    this.getFullYear(),
    this.getMonth(),
    this.getDate(),
    0,
    0,
    0
  );
  var then = new Date(this.getFullYear(), 0, 0, 0, 0, 0);
  var time = now - then;
  return Math.floor(time / Date.DAY);
};

/** Returns the number of the week in year, as defined in ISO 8601. */
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["%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;