/*  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 1.2 2010/03/18 06:39:16 Prasanth 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) );
Calendar.is_ie7up = ( Calendar.is_ie && parseFloat(navigator.userAgent.replace(/.*msie ([0-9]+).*/i, "$1" )) >= 7 );

/// 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.style.zIndex = "8000";
   }
   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 && !Calendar.is_ie7up){
         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;