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   1  /*  Copyright Mihai Bazon, 2002, 2003  |  http://dynarch.com/mishoo/
   2   * ------------------------------------------------------------------
   3   *
   4   * The DHTML Calendar, version 0.9.6 "Keep cool but don't freeze"
   5   *
   6   * Details and latest version at:
   7   * http://dynarch.com/mishoo/calendar.epl
   8   *
   9   * This script is distributed under the GNU Lesser General Public License.
  10   * Read the entire license text here: http://www.gnu.org/licenses/lgpl.html
  11   */
  12  
  13  // $Id: calendar.js 20295 2006-02-15 12:31:25Z  $
  14  
  15  /** The Calendar object constructor. */
  16  Calendar = function (firstDayOfWeek, dateStr, onSelected, onClose) {
  17      // member variables
  18      this.activeDiv = null;
  19      this.currentDateEl = null;
  20      this.getDateStatus = null;
  21      this.timeout = null;
  22      this.onSelected = onSelected || null;
  23      this.onClose = onClose || null;
  24      this.dragging = false;
  25      this.hidden = false;
  26      this.minYear = 1970;
  27      this.maxYear = 2050;
  28      this.dateFormat = Calendar._TT["DEF_DATE_FORMAT"];
  29      this.ttDateFormat = Calendar._TT["TT_DATE_FORMAT"];
  30      this.isPopup = true;
  31      this.weekNumbers = true;
  32      this.firstDayOfWeek = firstDayOfWeek; // 0 for Sunday, 1 for Monday, etc.
  33      this.showsOtherMonths = false;
  34      this.dateStr = dateStr;
  35      this.ar_days = null;
  36      this.showsTime = false;
  37      this.time24 = true;
  38      this.yearStep = 2;
  39      // HTML elements
  40      this.table = null;
  41      this.element = null;
  42      this.tbody = null;
  43      this.firstdayname = null;
  44      // Combo boxes
  45      this.monthsCombo = null;
  46      this.yearsCombo = null;
  47      this.hilitedMonth = null;
  48      this.activeMonth = null;
  49      this.hilitedYear = null;
  50      this.activeYear = null;
  51      // Information
  52      this.dateClicked = false;
  53  
  54      // one-time initializations
  55      if (typeof Calendar._SDN == "undefined") {
  56          // table of short day names
  57          if (typeof Calendar._SDN_len == "undefined")
  58              Calendar._SDN_len = 3;
  59          var ar = new Array();
  60          for (var i = 8; i > 0;) {
  61              ar[--i] = Calendar._DN[i].substr(0, Calendar._SDN_len);
  62          }
  63          Calendar._SDN = ar;
  64          // table of short month names
  65          if (typeof Calendar._SMN_len == "undefined")
  66              Calendar._SMN_len = 3;
  67          ar = new Array();
  68          for (var i = 12; i > 0;) {
  69              ar[--i] = Calendar._MN[i].substr(0, Calendar._SMN_len);
  70          }
  71          Calendar._SMN = ar;
  72      }
  73  };
  74  
  75  // ** constants
  76  
  77  /// "static", needed for event handlers.
  78  Calendar._C = null;
  79  
  80  /// detect a special case of "web browser"
  81  Calendar.is_ie = ( /msie/i.test(navigator.userAgent) &&
  82             !/opera/i.test(navigator.userAgent) );
  83  
  84  Calendar.is_ie5 = ( Calendar.is_ie && /msie 5\.0/i.test(navigator.userAgent) );
  85  
  86  Calendar.is_ie5_mac = ( Calendar.is_ie && /Mac/i.test(navigator.userAgent) ); // IE 5.0 & 5.2 on Mac
  87  
  88  /// detect Opera browser
  89  Calendar.is_opera = /opera/i.test(navigator.userAgent);
  90  
  91  /// detect KHTML-based browsers
  92  Calendar.is_khtml = /Konqueror|Safari|KHTML/i.test(navigator.userAgent);
  93  
  94  // BEGIN: UTILITY FUNCTIONS; beware that these might be moved into a separate
  95  //        library, at some point.
  96  
  97  // Fills the indicated table cell with the given text. Fixes a bug on IE 5 Mac.
  98  Calendar._setCellText=function(cell,text){
  99      if(cell.firstChild) 
 100          cell.firstChild.data=text;
 101      else 
 102          cell.innerText=text;
 103  };
 104  
 105  Calendar.getAbsolutePos = function(el) {
 106      var SL = 0, ST = 0;
 107      var is_div = /^div$/i.test(el.tagName);
 108      if (is_div && el.scrollLeft)
 109          SL = el.scrollLeft;
 110      if (is_div && el.scrollTop)
 111          ST = el.scrollTop;
 112      var r = { x: el.offsetLeft - SL, y: el.offsetTop - ST };
 113      if (el.offsetParent) {
 114          var tmp = this.getAbsolutePos(el.offsetParent);
 115          r.x += tmp.x;
 116          r.y += tmp.y;
 117      }
 118      return r;
 119  };
 120  
 121  Calendar.isRelated = function (el, evt) {
 122      if(!evt) evt=event;    // IE 5 Mac evt is null
 123      var related = evt.relatedTarget;
 124      if (!related) {
 125          var type = evt.type;
 126          if (type == "mouseover") {
 127              related = evt.fromElement;
 128          } else if (type == "mouseout") {
 129              related = evt.toElement;
 130          }
 131      }
 132      while (related) {
 133          if (related == el) {
 134              return true;
 135          }
 136          related = related.parentNode;
 137      }
 138      return false;
 139  };
 140  
 141  Calendar.removeClass = function(el, className) {
 142      if (!(el && el.className)) {
 143          return;
 144      }
 145      var cls = el.className.split(" ");
 146      var ar = new Array();
 147      for (var i = cls.length; i > 0;) {
 148          if (cls[--i] != className) {
 149              ar[ar.length] = cls[i];
 150          }
 151      }
 152      el.className = ar.join(" ");
 153  };
 154  
 155  Calendar.addClass = function(el, className) {
 156      Calendar.removeClass(el, className);
 157      el.className += " " + className;
 158  };
 159  
 160  Calendar.getElement = function(ev) {
 161      if (Calendar.is_ie) {
 162          return window.event.srcElement;
 163      } else {
 164          return ev.currentTarget;
 165      }
 166  };
 167  
 168  Calendar.getTargetElement = function(ev) {
 169      if (Calendar.is_ie) {
 170          return window.event.srcElement;
 171      } else {
 172          return ev.target;
 173      }
 174  };
 175  
 176  Calendar.stopEvent = function(ev) {
 177      ev || (ev = window.event);
 178      if (Calendar.is_ie) {
 179          ev.cancelBubble = true;
 180          ev.returnValue = false;
 181      } else {
 182          ev.preventDefault();
 183          ev.stopPropagation();
 184      }
 185      return false;
 186  };
 187  
 188  Calendar.addEvent = function(el, evname, func) {
 189      if (el.attachEvent) { // IE
 190          el.attachEvent("on" + evname, func);
 191      } else if (el.addEventListener) { // Gecko / W3C
 192          el.addEventListener(evname, func, true);
 193      } else {
 194          el["on" + evname] = func;
 195      }
 196  };
 197  
 198  Calendar.removeEvent = function(el, evname, func) {
 199      if (el.detachEvent) { // IE
 200          el.detachEvent("on" + evname, func);
 201      } else if (el.removeEventListener) { // Gecko / W3C
 202          el.removeEventListener(evname, func, true);
 203      } else {
 204          el["on" + evname] = null;
 205      }
 206  };
 207  
 208  Calendar.createElement = function(type, parent) {
 209      var el = null;
 210      if (document.createElementNS) {
 211          // use the XHTML namespace; IE won't normally get here unless
 212          // _they_ "fix" the DOM2 implementation.
 213          el = document.createElementNS("http://www.w3.org/1999/xhtml", type);
 214      } else {
 215          el = document.createElement(type);
 216      }
 217      if (typeof parent != "undefined") {
 218          parent.appendChild(el);
 219      }
 220      return el;
 221  };
 222  
 223  // END: UTILITY FUNCTIONS
 224  
 225  // BEGIN: CALENDAR STATIC FUNCTIONS
 226  
 227  /** Internal -- adds a set of events to make some element behave like a button. */
 228  Calendar._add_evs = function(el) {
 229      with (Calendar) {
 230          addEvent(el, "mouseover", dayMouseOver);
 231          addEvent(el, "mousedown", dayMouseDown);
 232          addEvent(el, "mouseout", dayMouseOut);
 233          if (is_ie) {
 234              addEvent(el, "dblclick", dayMouseDblClick);
 235              el.setAttribute("unselectable", true);
 236          }
 237      }
 238  };
 239  
 240  Calendar.findMonth = function(el) {
 241      if (typeof el.month != "undefined") {
 242          return el;
 243      } else if (typeof el.parentNode.month != "undefined") {
 244          return el.parentNode;
 245      }
 246      return null;
 247  };
 248  
 249  Calendar.findYear = function(el) {
 250      if (typeof el.year != "undefined") {
 251          return el;
 252      } else if (typeof el.parentNode.year != "undefined") {
 253          return el.parentNode;
 254      }
 255      return null;
 256  };
 257  
 258  Calendar.showMonthsCombo = function () {
 259      var cal = Calendar._C;
 260      if (!cal) {
 261          return false;
 262      }
 263      var cal = cal;
 264      var cd = cal.activeDiv;
 265      var mc = cal.monthsCombo;
 266      if (cal.hilitedMonth) {
 267          Calendar.removeClass(cal.hilitedMonth, "hilite");
 268      }
 269      if (cal.activeMonth) {
 270          Calendar.removeClass(cal.activeMonth, "active");
 271      }
 272      var mon = cal.monthsCombo.getElementsByTagName("div")[cal.date.getMonth()];
 273      Calendar.addClass(mon, "active");
 274      cal.activeMonth = mon;
 275      var s = mc.style;
 276      s.display = "block";
 277      if (cd.navtype < 0)
 278          s.left = cd.offsetLeft + "px";
 279      else {
 280          var mcw = mc.offsetWidth;
 281          if (typeof mcw == "undefined")
 282              // Konqueror brain-dead techniques
 283              mcw = 50;
 284          s.left = (cd.offsetLeft + cd.offsetWidth - mcw) + "px";
 285      }
 286      s.top = (cd.offsetTop + cd.offsetHeight) + "px";
 287  };
 288  
 289  Calendar.showYearsCombo = function (fwd) {
 290      var cal = Calendar._C;
 291      if (!cal) {
 292          return false;
 293      }
 294      var cal = cal;
 295      var cd = cal.activeDiv;
 296      var yc = cal.yearsCombo;
 297      if (cal.hilitedYear) {
 298          Calendar.removeClass(cal.hilitedYear, "hilite");
 299      }
 300      if (cal.activeYear) {
 301          Calendar.removeClass(cal.activeYear, "active");
 302      }
 303      cal.activeYear = null;
 304      var Y = cal.date.getFullYear() + (fwd ? 1 : -1);
 305      var yr = yc.firstChild;
 306      var show = false;
 307      for (var i = 12; i > 0; --i) {
 308          if (Y >= cal.minYear && Y <= cal.maxYear) {
 309              Calendar._setCellText(yr,Y);
 310              yr.year = Y;
 311              yr.style.display = "block";
 312              show = true;
 313          } else {
 314              yr.style.display = "none";
 315          }
 316          yr = yr.nextSibling;
 317          Y += fwd ? cal.yearStep : -cal.yearStep;
 318      }
 319      if (show) {
 320          var s = yc.style;
 321          s.display = "block";
 322          if (cd.navtype < 0)
 323              s.left = cd.offsetLeft + "px";
 324          else {
 325              var ycw = yc.offsetWidth;
 326              if (typeof ycw == "undefined")
 327                  // Konqueror brain-dead techniques
 328                  ycw = 50;
 329              s.left = (cd.offsetLeft + cd.offsetWidth - ycw) + "px";
 330          }
 331          s.top = (cd.offsetTop + cd.offsetHeight) + "px";
 332      }
 333  };
 334  
 335  // event handlers
 336  
 337  Calendar.tableMouseUp = function(ev) {
 338      var cal = Calendar._C;
 339      if (!cal) {
 340          return false;
 341      }
 342      if (cal.timeout) {
 343          clearTimeout(cal.timeout);
 344      }
 345      var el = cal.activeDiv;
 346      if (!el) {
 347          return false;
 348      }
 349      var target = Calendar.getTargetElement(ev);
 350      ev || (ev = window.event);
 351      Calendar.removeClass(el, "active");
 352      if (target == el || target.parentNode == el) {
 353          Calendar.cellClick(el, ev);
 354      }
 355      var mon = Calendar.findMonth(target);
 356      var date = null;
 357      if (mon) {
 358          date = new Date(cal.date);
 359          if (mon.month != date.getMonth()) {
 360              date.setMonth(mon.month);
 361              cal.setDate(date);
 362              cal.dateClicked = false;
 363              cal.callHandler();
 364          }
 365      } else {
 366          var year = Calendar.findYear(target);
 367          if (year) {
 368              date = new Date(cal.date);
 369              if (year.year != date.getFullYear()) {
 370                  date.setFullYear(year.year);
 371                  cal.setDate(date);
 372                  cal.dateClicked = false;
 373                  cal.callHandler();
 374              }
 375          }
 376      }
 377      with (Calendar) {
 378          removeEvent(document, "mouseup", tableMouseUp);
 379          removeEvent(document, "mouseover", tableMouseOver);
 380          removeEvent(document, "mousemove", tableMouseOver);
 381          cal._hideCombos();
 382          _C = null;
 383          return stopEvent(ev);
 384      }
 385  };
 386  
 387  Calendar.tableMouseOver = function (ev) {
 388      var cal = Calendar._C;
 389      if (!cal) {
 390          return;
 391      }
 392      var el = cal.activeDiv;
 393      var target = Calendar.getTargetElement(ev);
 394      if (target == el || target.parentNode == el) {
 395          Calendar.addClass(el, "hilite active");
 396          Calendar.addClass(el.parentNode, "rowhilite");
 397      } else {
 398          if (typeof el.navtype == "undefined" || (el.navtype != 50 && (el.navtype == 0 || Math.abs(el.navtype) > 2)))
 399              Calendar.removeClass(el, "active");
 400          Calendar.removeClass(el, "hilite");
 401          Calendar.removeClass(el.parentNode, "rowhilite");
 402      }
 403      ev || (ev = window.event);
 404      if (el.navtype == 50 && target != el) {
 405          var pos = Calendar.getAbsolutePos(el);
 406          var w = el.offsetWidth;
 407          var x = ev.clientX;
 408          var dx;
 409          var decrease = true;
 410          if (x > pos.x + w) {
 411              dx = x - pos.x - w;
 412              decrease = false;
 413          } else
 414              dx = pos.x - x;
 415  
 416          if (dx < 0) dx = 0;
 417          var range = el._range;
 418          var current = el._current;
 419          var count = Math.floor(dx / 10) % range.length;
 420          for (var i = range.length; --i >= 0;)
 421              if (range[i] == current)
 422                  break;
 423          while (count-- > 0)
 424              if (decrease) {
 425                  if (--i < 0)
 426                      i = range.length - 1;
 427              } else if ( ++i >= range.length )
 428                  i = 0;
 429          var newval = range[i];
 430          Calendar._setCellText(el,newval);
 431  
 432          cal.onUpdateTime();
 433      }
 434      var mon = Calendar.findMonth(target);
 435      if (mon) {
 436          if (mon.month != cal.date.getMonth()) {
 437              if (cal.hilitedMonth) {
 438                  Calendar.removeClass(cal.hilitedMonth, "hilite");
 439              }
 440              Calendar.addClass(mon, "hilite");
 441              cal.hilitedMonth = mon;
 442          } else if (cal.hilitedMonth) {
 443              Calendar.removeClass(cal.hilitedMonth, "hilite");
 444          }
 445      } else {
 446          if (cal.hilitedMonth) {
 447              Calendar.removeClass(cal.hilitedMonth, "hilite");
 448          }
 449          var year = Calendar.findYear(target);
 450          if (year) {
 451              if (year.year != cal.date.getFullYear()) {
 452                  if (cal.hilitedYear) {
 453                      Calendar.removeClass(cal.hilitedYear, "hilite");
 454                  }
 455                  Calendar.addClass(year, "hilite");
 456                  cal.hilitedYear = year;
 457              } else if (cal.hilitedYear) {
 458                  Calendar.removeClass(cal.hilitedYear, "hilite");
 459              }
 460          } else if (cal.hilitedYear) {
 461              Calendar.removeClass(cal.hilitedYear, "hilite");
 462          }
 463      }
 464      return Calendar.stopEvent(ev);
 465  };
 466  
 467  Calendar.tableMouseDown = function (ev) {
 468      if (Calendar.getTargetElement(ev) == Calendar.getElement(ev)) {
 469          return Calendar.stopEvent(ev);
 470      }
 471  };
 472  
 473  Calendar.calDragIt = function (ev) {
 474      var cal = Calendar._C;
 475      if (!(cal && cal.dragging)) {
 476          return false;
 477      }
 478      var posX;
 479      var posY;
 480      if (Calendar.is_ie) {
 481          posY = window.event.clientY + document.body.scrollTop;
 482          posX = window.event.clientX + document.body.scrollLeft;
 483      } else {
 484          posX = ev.pageX;
 485          posY = ev.pageY;
 486      }
 487      cal.hideShowCovered();
 488      var st = cal.element.style;
 489      st.left = (posX - cal.xOffs) + "px";
 490      st.top = (posY - cal.yOffs) + "px";
 491      return Calendar.stopEvent(ev);
 492  };
 493  
 494  Calendar.calDragEnd = function (ev) {
 495      var cal = Calendar._C;
 496      if (!cal) {
 497          return false;
 498      }
 499      cal.dragging = false;
 500      with (Calendar) {
 501          removeEvent(document, "mousemove", calDragIt);
 502          removeEvent(document, "mouseup", calDragEnd);
 503          tableMouseUp(ev);
 504      }
 505      cal.hideShowCovered();
 506  };
 507  
 508  Calendar.dayMouseDown = function(ev) {
 509      var el = Calendar.getElement(ev);
 510      if (el.disabled) {
 511          return false;
 512      }
 513      var cal = el.calendar;
 514      cal.activeDiv = el;
 515      Calendar._C = cal;
 516      if (el.navtype != 300) with (Calendar) {
 517          if (el.navtype == 50) {
 518              el._current = el.firstChild.data;
 519              addEvent(document, "mousemove", tableMouseOver);
 520          } else
 521              addEvent(document, Calendar.is_ie5 ? "mousemove" : "mouseover", tableMouseOver);
 522          addClass(el, "hilite active");
 523          addEvent(document, "mouseup", tableMouseUp);
 524      } else if (cal.isPopup) {
 525          cal._dragStart(ev);
 526      }
 527      if (el.navtype == -1 || el.navtype == 1) {
 528          if (cal.timeout) clearTimeout(cal.timeout);
 529          cal.timeout = setTimeout("Calendar.showMonthsCombo()", 250);
 530      } else if (el.navtype == -2 || el.navtype == 2) {
 531          if (cal.timeout) clearTimeout(cal.timeout);
 532          cal.timeout = setTimeout((el.navtype > 0) ? "Calendar.showYearsCombo(true)" : "Calendar.showYearsCombo(false)", 250);
 533      } else {
 534          cal.timeout = null;
 535      }
 536      return Calendar.stopEvent(ev);
 537  };
 538  
 539  Calendar.dayMouseDblClick = function(ev) {
 540      Calendar.cellClick(Calendar.getElement(ev), ev || window.event);
 541      if (Calendar.is_ie) {
 542          document.selection.empty();
 543      }
 544  };
 545  
 546  Calendar.dayMouseOver = function(ev) {
 547      var el = Calendar.getElement(ev);
 548      if (Calendar.isRelated(el, ev) || Calendar._C || el.disabled) {
 549          return false;
 550      }
 551      if (el.ttip) {
 552          if (el.ttip.substr(0, 1) == "_") {
 553              el.ttip = el.caldate.print(el.calendar.ttDateFormat) + el.ttip.substr(1);
 554          }
 555          Calendar._setCellText(el.calendar.tooltips,el.ttip);
 556      }
 557      if (el.navtype != 300) {
 558          Calendar.addClass(el, "hilite");
 559          if (el.caldate) {
 560              Calendar.addClass(el.parentNode, "rowhilite");
 561          }
 562      }
 563      return Calendar.stopEvent(ev);
 564  };
 565  
 566  Calendar.dayMouseOut = function(ev) {
 567      with (Calendar) {
 568          var el = getElement(ev);
 569          if (isRelated(el, ev) || _C || el.disabled) {
 570              return false;
 571          }
 572          removeClass(el, "hilite");
 573          if (el.caldate) {
 574              removeClass(el.parentNode, "rowhilite");
 575          }
 576          _setCellText(el.calendar.tooltips,_TT["SEL_DATE"]);
 577          return stopEvent(ev);
 578      }
 579  };
 580  
 581  /**
 582   *  A generic "click" handler :) handles all types of buttons defined in this
 583   *  calendar.
 584   */
 585  Calendar.cellClick = function(el, ev) {
 586      var cal = el.calendar;
 587      var closing = false;
 588      var newdate = false;
 589      var date = null;
 590      if (typeof el.navtype == "undefined") {
 591          Calendar.removeClass(cal.currentDateEl, "selected");
 592          Calendar.addClass(el, "selected");
 593          closing = (cal.currentDateEl == el);
 594          if (!closing) {
 595              cal.currentDateEl = el;
 596          }
 597          cal.date = new Date(el.caldate);
 598          date = cal.date;
 599          newdate = true;
 600          // a date was clicked
 601          if (!(cal.dateClicked = !el.otherMonth))
 602              cal._init(cal.firstDayOfWeek, date);
 603      } else {
 604          if (el.navtype == 200) {
 605              Calendar.removeClass(el, "hilite");
 606              cal.callCloseHandler();
 607              return;
 608          }
 609          date = (el.navtype == 0) ? new Date() : new Date(cal.date);
 610          // unless "today" was clicked, we assume no date was clicked so
 611          // the selected handler will know not to close the calenar when
 612          // in single-click mode.
 613          // cal.dateClicked = (el.navtype == 0);
 614          cal.dateClicked = false;
 615          var year = date.getFullYear();
 616          var mon = date.getMonth();
 617  		function setMonth(m) {
 618              var day = date.getDate();
 619              var max = date.getMonthDays(m);
 620              if (day > max) {
 621                  date.setDate(max);
 622              }
 623              date.setMonth(m);
 624          };
 625          switch (el.navtype) {
 626              case 500:
 627              cal.callWeekHandler(el.caldate);
 628              return;
 629              case 501:
 630              cal.callMonthHandler();
 631              return;
 632              case 400:
 633              Calendar.removeClass(el, "hilite");
 634              var text = Calendar._TT["ABOUT"];
 635              if (typeof text != "undefined") {
 636                  text += cal.showsTime ? Calendar._TT["ABOUT_TIME"] : "";
 637              } else {
 638                  // FIXME: this should be removed as soon as lang files get updated!
 639                  text = "Help and about box text is not translated into this language.\n" +
 640                      "If you know this language and you feel generous please update\n" +
 641                      "the corresponding file in \"lang\" subdir to match calendar-en.js\n" +
 642                      "and send it back to <mishoo@infoiasi.ro> to get it into the distribution  ;-)\n\n" +
 643                      "Thank you!\n" +
 644                      "http://dynarch.com/mishoo/calendar.epl\n";
 645              }
 646              alert(text);
 647              return;
 648              case -2:
 649              if (year > cal.minYear) {
 650                  date.setFullYear(year - 1);
 651              }
 652              break;
 653              case -1:
 654              if (mon > 0) {
 655                  setMonth(mon - 1);
 656              } else if (year-- > cal.minYear) {
 657                  date.setFullYear(year);
 658                  setMonth(11);
 659              }
 660              break;
 661              case 1:
 662              if (mon < 11) {
 663                  setMonth(mon + 1);
 664              } else if (year < cal.maxYear) {
 665                  date.setFullYear(year + 1);
 666                  setMonth(0);
 667              }
 668              break;
 669              case 2:
 670              if (year < cal.maxYear) {
 671                  date.setFullYear(year + 1);
 672              }
 673              break;
 674              case 100:
 675              cal.setFirstDayOfWeek(el.fdow);
 676              return;
 677              case 50:
 678              var range = el._range;
 679              var current = el.firstChild.data;
 680              for (var i = range.length; --i >= 0;)
 681                  if (range[i] == current)
 682                      break;
 683              if (ev && ev.shiftKey) {
 684                  if (--i < 0)
 685                      i = range.length - 1;
 686              } else if ( ++i >= range.length )
 687                  i = 0;
 688              var newval = range[i];
 689              Calendar._setCellText(el,newval);
 690              cal.onUpdateTime();
 691              return;
 692              case 0:
 693              // TODAY will bring us here
 694              if ((typeof cal.getDateStatus == "function") && cal.getDateStatus(date, date.getFullYear(), date.getMonth(), date.getDate())) {
 695                  // remember, "date" was previously set to new
 696                  // Date() if TODAY was clicked; thus, it
 697                  // contains today date.
 698                  return false;
 699              }
 700              break;
 701          }
 702          if (!date.equalsTo(cal.date)) {
 703              cal.setDate(date);
 704              newdate = true;
 705          }
 706      }
 707      if (newdate) {
 708          cal.callHandler();
 709      }
 710      if (closing) {
 711          Calendar.removeClass(el, "hilite");
 712          cal.callCloseHandler();
 713      }
 714  };
 715  
 716  // END: CALENDAR STATIC FUNCTIONS
 717  
 718  // BEGIN: CALENDAR OBJECT FUNCTIONS
 719  
 720  /**
 721   *  This function creates the calendar inside the given parent.  If _par is
 722   *  null than it creates a popup calendar inside the BODY element.  If _par is
 723   *  an element, be it BODY, then it creates a non-popup calendar (still
 724   *  hidden).  Some properties need to be set before calling this function.
 725   */
 726  Calendar.prototype.create = function (_par) {
 727      var parent = null;
 728      if (! _par) {
 729          // default parent is the document body, in which case we create
 730          // a popup calendar.
 731          parent = document.getElementsByTagName("body")[0];
 732          this.isPopup = true;
 733      } else {
 734          parent = _par;
 735          this.isPopup = false;
 736      }
 737      this.date = this.dateStr ? new Date(this.dateStr) : new Date();
 738  
 739      var table = Calendar.createElement("table");
 740      this.table = table;
 741      table.cellSpacing = 0;
 742      table.cellPadding = 0;
 743      table.calendar = this;
 744      Calendar.addEvent(table, "mousedown", Calendar.tableMouseDown);
 745  
 746      var div = Calendar.createElement("div");
 747      this.element = div;
 748      div.className = "calendar";
 749      if (this.isPopup) {
 750          div.style.position = "absolute";
 751          div.style.display = "none";
 752      }
 753      div.appendChild(table);
 754  
 755      var thead = Calendar.createElement("thead", table);
 756      var cell = null;
 757      var row = null;
 758  
 759      var cal = this;
 760      var hh = function (text, cs, navtype) {
 761          cell = Calendar.createElement("td", row);
 762          cell.colSpan = cs;
 763          cell.className = "button";
 764          if (navtype != 0 && Math.abs(navtype) <= 2)
 765              cell.className += " nav";
 766          Calendar._add_evs(cell);
 767          cell.calendar = cal;
 768          cell.navtype = navtype;
 769          if (text.substr(0, 1) != "&") {
 770              cell.appendChild(document.createTextNode(text));
 771          }
 772          else {
 773              // FIXME: dirty hack for entities
 774              cell.innerHTML = text;
 775          }
 776          return cell;
 777      };
 778  
 779      row = Calendar.createElement("tr", thead);
 780      var title_length = 6;
 781      (this.isPopup) && --title_length;
 782      (this.weekNumbers) && ++title_length;
 783  
 784      hh("?", 1, 400).ttip = Calendar._TT["INFO"];
 785      if (this.hasMonthHandler()) {
 786          this.title = hh("", title_length, 501);
 787          if (this.params.flatMonthTTip) this.title.ttip = this.params.flatMonthTTip;
 788      } else {
 789          this.title = hh("", title_length, 300);
 790      }
 791      this.title.className = "title";
 792      if (this.isPopup) {
 793          this.title.ttip = Calendar._TT["DRAG_TO_MOVE"];
 794          this.title.style.cursor = "move";
 795          hh("&#x00d7;", 1, 200).ttip = Calendar._TT["CLOSE"];
 796      }
 797  
 798      row = Calendar.createElement("tr", thead);
 799      row.className = "headrow";
 800  
 801      this._nav_py = hh("&#x00ab;", 1, -2);
 802      this._nav_py.ttip = Calendar._TT["PREV_YEAR"];
 803  
 804      this._nav_pm = hh("&#x2039;", 1, -1);
 805      this._nav_pm.ttip = Calendar._TT["PREV_MONTH"];
 806  
 807      this._nav_now = hh(Calendar._TT["TODAY"], this.weekNumbers ? 4 : 3, 0);
 808      this._nav_now.ttip = Calendar._TT["GO_TODAY"];
 809  
 810      this._nav_nm = hh("&#x203a;", 1, 1);
 811      this._nav_nm.ttip = Calendar._TT["NEXT_MONTH"];
 812  
 813      this._nav_ny = hh("&#x00bb;", 1, 2);
 814      this._nav_ny.ttip = Calendar._TT["NEXT_YEAR"];
 815  
 816      // day names
 817      row = Calendar.createElement("tr", thead);
 818      row.className = "daynames";
 819      if (this.weekNumbers) {
 820          cell = Calendar.createElement("td", row);
 821          cell.className = "name wn";
 822          cell.appendChild(document.createTextNode(Calendar._TT["WK"]));
 823      }
 824      for (var i = 7; i > 0; --i) {
 825          cell = Calendar.createElement("td", row);
 826          cell.appendChild(document.createTextNode(""));
 827          if (!i) {
 828              cell.navtype = 100;
 829              cell.calendar = this;
 830              Calendar._add_evs(cell);
 831          }
 832      }
 833      this.firstdayname = (this.weekNumbers) ? row.firstChild.nextSibling : row.firstChild;
 834      this._displayWeekdays();
 835  
 836      var tbody = Calendar.createElement("tbody", table);
 837      this.tbody = tbody;
 838  
 839      for (i = 6; i > 0; --i) {
 840          row = Calendar.createElement("tr", tbody);
 841          if (this.weekNumbers) {
 842              if (this.hasWeekHandler()) {
 843                  cell = hh("",1,500);
 844                  if (this.params.flatWeekTTip) cell.ttip = this.params.flatWeekTTip;
 845              } else {
 846                  cell = Calendar.createElement("td", row);
 847                  cell.appendChild(document.createTextNode(""));
 848              }
 849          }
 850          for (var j = 7; j > 0; --j) {
 851              cell = Calendar.createElement("td", row);
 852              cell.appendChild(document.createTextNode(""));
 853              cell.calendar = this;
 854              Calendar._add_evs(cell);
 855          }
 856      }
 857  
 858      if (this.showsTime) {
 859          row = Calendar.createElement("tr", tbody);
 860          row.className = "time";
 861  
 862          cell = Calendar.createElement("td", row);
 863          cell.className = "time";
 864          cell.colSpan = 2;
 865          cell.innerHTML = Calendar._TT["TIME"] || "&nbsp;";
 866  
 867          cell = Calendar.createElement("td", row);
 868          cell.className = "time";
 869          cell.colSpan = this.weekNumbers ? 4 : 3;
 870  
 871          (function(){
 872  			function makeTimePart(className, init, range_start, range_end) {
 873                  var part = Calendar.createElement("span", cell);
 874                  part.className = className;
 875                  part.appendChild(document.createTextNode(init));
 876                  part.calendar = cal;
 877                  part.ttip = Calendar._TT["TIME_PART"];
 878                  part.navtype = 50;
 879                  part._range = [];
 880                  if (typeof range_start != "number")
 881                      part._range = range_start;
 882                  else {
 883                      for (var i = range_start; i <= range_end; ++i) {
 884                          var txt;
 885                          if (i < 10 && range_end >= 10) txt = '0' + i;
 886                          else txt = '' + i;
 887                          part._range[part._range.length] = txt;
 888                      }
 889                  }
 890                  Calendar._add_evs(part);
 891                  return part;
 892              };
 893              var hrs = cal.date.getHours();
 894              var mins = cal.date.getMinutes();
 895              var t12 = !cal.time24;
 896              var pm = (hrs > 12);
 897              if (t12 && pm) hrs -= 12;
 898              var H = makeTimePart("hour", hrs, t12 ? 1 : 0, t12 ? 12 : 23);
 899              var span = Calendar.createElement("span", cell);
 900              span.appendChild(document.createTextNode(":"));
 901              span.className = "colon";
 902              var M = makeTimePart("minute", mins, 0, 59);
 903              var AP = null;
 904              cell = Calendar.createElement("td", row);
 905              cell.className = "time";
 906              cell.colSpan = 2;
 907              if (t12)
 908                  AP = makeTimePart("ampm", pm ? "pm" : "am", ["am", "pm"]);
 909              else
 910                  cell.innerHTML = "&nbsp;";
 911  
 912              cal.onSetTime = function() {
 913                  var hrs = this.date.getHours();
 914                  var mins = this.date.getMinutes();
 915                  var pm = (hrs > 12);
 916                  if (pm && t12) hrs -= 12;
 917                  Calendar._setCellText(H,(hrs < 10) ? ("0" + hrs) : hrs);
 918                  Calendar._setCellText(M,(mins < 10) ? ("0" + mins) : mins);
 919                  if (t12)
 920                      Calendar._setCellText(AP,pm ? "pm" : "am");
 921              };
 922  
 923              cal.onUpdateTime = function() {
 924                  var date = this.date;
 925                  var h = parseInt(H.firstChild.data, 10);
 926                  if (t12) {
 927                      if (/pm/i.test(AP.firstChild.data) && h < 12)
 928                          h += 12;
 929                      else if (/am/i.test(AP.firstChild.data) && h == 12)
 930                          h = 0;
 931                  }
 932                  var d = date.getDate();
 933                  var m = date.getMonth();
 934                  var y = date.getFullYear();
 935                  date.setHours(h);
 936                  date.setMinutes(parseInt(M.firstChild.data, 10));
 937                  date.setFullYear(y);
 938                  date.setMonth(m);
 939                  date.setDate(d);
 940                  this.dateClicked = false;
 941                  this.callHandler();
 942              };
 943          })();
 944      } else {
 945          this.onSetTime = this.onUpdateTime = function() {};
 946      }
 947  
 948      var tfoot = Calendar.createElement("tfoot", table);
 949  
 950      row = Calendar.createElement("tr", tfoot);
 951      row.className = "footrow";
 952  
 953      cell = hh(Calendar._TT["SEL_DATE"], this.weekNumbers ? 8 : 7, 300);
 954      cell.className = "ttip";
 955      if (this.isPopup) {
 956          cell.ttip = Calendar._TT["DRAG_TO_MOVE"];
 957          cell.style.cursor = "move";
 958      }
 959      this.tooltips = cell;
 960  
 961      div = Calendar.createElement("div", this.element);
 962      this.monthsCombo = div;
 963      div.className = "combo";
 964      for (i = 0; i < Calendar._MN.length; ++i) {
 965          var mn = Calendar.createElement("div");
 966          mn.className = Calendar.is_ie ? "label-IEfix" : "label";
 967          mn.month = i;
 968          mn.appendChild(document.createTextNode(Calendar._SMN[i]));
 969          div.appendChild(mn);
 970      }
 971  
 972      div = Calendar.createElement("div", this.element);
 973      this.yearsCombo = div;
 974      div.className = "combo";
 975      for (i = 12; i > 0; --i) {
 976          var yr = Calendar.createElement("div");
 977          yr.className = Calendar.is_ie ? "label-IEfix" : "label";
 978          yr.appendChild(document.createTextNode(""));
 979          div.appendChild(yr);
 980      }
 981  
 982      this._init(this.firstDayOfWeek, this.date);
 983      parent.appendChild(this.element);
 984  };
 985  
 986  /** keyboard navigation, only for popup calendars */
 987  Calendar._keyEvent = function(ev) {
 988      if (!window.calendar) {
 989          return false;
 990      }
 991      (Calendar.is_ie) && (ev = window.event);
 992      var cal = window.calendar;
 993      var act = (Calendar.is_ie || ev.type == "keypress");
 994      if (ev.ctrlKey) {
 995          switch (ev.keyCode) {
 996              case 37: // KEY left
 997              act && Calendar.cellClick(cal._nav_pm);
 998              break;
 999              case 38: // KEY up
1000              act && Calendar.cellClick(cal._nav_py);
1001              break;
1002              case 39: // KEY right
1003              act && Calendar.cellClick(cal._nav_nm);
1004              break;
1005              case 40: // KEY down
1006              act && Calendar.cellClick(cal._nav_ny);
1007              break;
1008              default:
1009              return false;
1010          }
1011      } else switch (ev.keyCode) {
1012          case 32: // KEY space (now)
1013          Calendar.cellClick(cal._nav_now);
1014          break;
1015          case 27: // KEY esc
1016          act && cal.callCloseHandler();
1017          break;
1018          case 37: // KEY left
1019          case 38: // KEY up
1020          case 39: // KEY right
1021          case 40: // KEY down
1022          if (act) {
1023              var date = cal.date.getDate() - 1;
1024              var el = cal.currentDateEl;
1025              var ne = null;
1026              var prev = (ev.keyCode == 37) || (ev.keyCode == 38);
1027              switch (ev.keyCode) {
1028                  case 37: // KEY left
1029                  (--date >= 0) && (ne = cal.ar_days[date]);
1030                  break;
1031                  case 38: // KEY up
1032                  date -= 7;
1033                  (date >= 0) && (ne = cal.ar_days[date]);
1034                  break;
1035                  case 39: // KEY right
1036                  (++date < cal.ar_days.length) && (ne = cal.ar_days[date]);
1037                  break;
1038                  case 40: // KEY down
1039                  date += 7;
1040                  (date < cal.ar_days.length) && (ne = cal.ar_days[date]);
1041                  break;
1042              }
1043              if (!ne) {
1044                  if (prev) {
1045                      Calendar.cellClick(cal._nav_pm);
1046                  } else {
1047                      Calendar.cellClick(cal._nav_nm);
1048                  }
1049                  date = (prev) ? cal.date.getMonthDays() : 1;
1050                  el = cal.currentDateEl;
1051                  ne = cal.ar_days[date - 1];
1052              }
1053              Calendar.removeClass(el, "selected");
1054              Calendar.addClass(ne, "selected");
1055              cal.date = new Date(ne.caldate);
1056              cal.callHandler();
1057              cal.currentDateEl = ne;
1058          }
1059          break;
1060          case 13: // KEY enter
1061          if (act) {
1062              cal.callHandler();
1063              cal.hide();
1064          }
1065          break;
1066          default:
1067          return false;
1068      }
1069      return Calendar.stopEvent(ev);
1070  };
1071  
1072  /**
1073   *  (RE)Initializes the calendar to the given date and firstDayOfWeek
1074   */
1075  Calendar.prototype._init = function (firstDayOfWeek, date) {
1076      var today = new Date();
1077      this.table.style.visibility = "hidden";
1078      var year = date.getFullYear();
1079      if (year < this.minYear) {
1080          year = this.minYear;
1081          date.setFullYear(year);
1082      } else if (year > this.maxYear) {
1083          year = this.maxYear;
1084          date.setFullYear(year);
1085      }
1086      this.firstDayOfWeek = firstDayOfWeek;
1087      this.date = new Date(date);
1088      var month = date.getMonth();
1089      var mday = date.getDate();
1090      var no_days = date.getMonthDays();
1091  
1092      // calendar voodoo for computing the first day that would actually be
1093      // displayed in the calendar, even if it's from the previous month.
1094      // WARNING: this is magic. ;-)
1095      date.setDate(1);
1096      var day1 = (date.getDay() - this.firstDayOfWeek) % 7;
1097      if (day1 < 0)
1098          day1 += 7;
1099      date.setDate(-day1);
1100      date.setDate(date.getDate() + 1);
1101  
1102      var row = this.tbody.firstChild;
1103      var MN = Calendar._SMN[month];
1104      var ar_days = new Array();
1105      var weekend = Calendar._TT["WEEKEND"];
1106      for (var i = 0; i < 6; ++i, row = row.nextSibling) {
1107          var cell = row.firstChild;
1108          if (this.weekNumbers) {
1109              cell.className = "day wn";
1110              Calendar._setCellText(cell,date.getWeekNumber());
1111              if (this.hasWeekHandler) cell.caldate = new Date(date);
1112              cell = cell.nextSibling;
1113          }
1114          row.className = "daysrow";
1115          var hasdays = false;
1116          for (var j = 0; j < 7; ++j, cell = cell.nextSibling, date.setDate(date.getDate() + 1)) {
1117              var iday = date.getDate();
1118              var wday = date.getDay();
1119              cell.className = "day";
1120              var current_month = (date.getMonth() == month);
1121              if (!current_month) {
1122                  if (this.showsOtherMonths) {
1123                      cell.className += " othermonth";
1124                      cell.otherMonth = true;
1125                  } else {
1126                      cell.className = "emptycell";
1127                      cell.innerHTML = "&nbsp;";
1128                      cell.disabled = true;
1129                      continue;
1130                  }
1131              } else {
1132                  cell.otherMonth = false;
1133                  hasdays = true;
1134              }
1135              cell.disabled = false;
1136              Calendar._setCellText(cell,iday);
1137              if (typeof this.getDateStatus == "function") {
1138                  var status = this.getDateStatus(date, year, month, iday);
1139                  if (status === true) {
1140                      cell.className += " disabled";
1141                      cell.disabled = true;
1142                  } else {
1143                      if (/disabled/i.test(status))
1144                          cell.disabled = true;
1145                      cell.className += " " + status;
1146                  }
1147              }
1148              if (!cell.disabled) {
1149                  ar_days[ar_days.length] = cell;
1150                  cell.caldate = new Date(date);
1151                  cell.ttip = "_";
1152                  if (current_month && iday == mday) {
1153                      cell.className += " selected";
1154                      this.currentDateEl = cell;
1155                  }
1156                  if (date.getFullYear() == today.getFullYear() &&
1157                      date.getMonth() == today.getMonth() &&
1158                      iday == today.getDate()) {
1159                      cell.className += " today";
1160                      cell.ttip += Calendar._TT["PART_TODAY"];
1161                  }
1162                  if (weekend.indexOf(wday.toString()) != -1) {
1163                      cell.className += cell.otherMonth ? " oweekend" : " weekend";
1164                  }
1165              }
1166          }
1167          if (!(hasdays || this.showsOtherMonths))
1168              row.className = "emptyrow";
1169      }
1170      this.ar_days = ar_days;
1171      Calendar._setCellText(this.title,this.params ? this.date.print(this.params.titleFormat) : Calendar._MN[month] + ", " + year);
1172      this.onSetTime();
1173      this.table.style.visibility = "visible";
1174      // PROFILE
1175      // Calendar._setCellText(this.tooltips,"Generated in " + ((new Date()) - today) + " ms");
1176  };
1177  
1178  /**
1179   *  Calls _init function above for going to a certain date (but only if the
1180   *  date is different than the currently selected one).
1181   */
1182  Calendar.prototype.setDate = function (date) {
1183      if (!date.equalsTo(this.date)) {
1184          this._init(this.firstDayOfWeek, date);
1185      }
1186  };
1187  
1188  /**
1189   *  Refreshes the calendar.  Useful if the "disabledHandler" function is
1190   *  dynamic, meaning that the list of disabled date can change at runtime.
1191   *  Just * call this function if you think that the list of disabled dates
1192   *  should * change.
1193   */
1194  Calendar.prototype.refresh = function () {
1195      this._init(this.firstDayOfWeek, this.date);
1196  };
1197  
1198  /** Modifies the "firstDayOfWeek" parameter (pass 0 for Synday, 1 for Monday, etc.). */
1199  Calendar.prototype.setFirstDayOfWeek = function (firstDayOfWeek) {
1200      this._init(firstDayOfWeek, this.date);
1201      this._displayWeekdays();
1202  };
1203  
1204  /**
1205   *  Allows customization of what dates are enabled.  The "unaryFunction"
1206   *  parameter must be a function object that receives the date (as a JS Date
1207   *  object) and returns a boolean value.  If the returned value is true then
1208   *  the passed date will be marked as disabled.
1209   */
1210  Calendar.prototype.setDateStatusHandler = Calendar.prototype.setDisabledHandler = function (unaryFunction) {
1211      this.getDateStatus = unaryFunction;
1212  };
1213  
1214  /** Customization of allowed year range for the calendar. */
1215  Calendar.prototype.setRange = function (a, z) {
1216      this.minYear = a;
1217      this.maxYear = z;
1218  };
1219  
1220  /** Calls the first user handler (selectedHandler). */
1221  Calendar.prototype.callHandler = function () {
1222      if (this.onSelected) {
1223          this.onSelected(this, this.date.print(this.dateFormat));
1224      }
1225  };
1226  
1227  /** Calls the week-clicked user handler (selectedHandler). */
1228  Calendar.prototype.hasWeekHandler = function () {
1229      return this.params && this.params.flat && this.params.flatWeekCallback;
1230  };
1231  
1232  Calendar.prototype.callWeekHandler = function (weekstart) {
1233      if (this.hasWeekHandler()) {
1234          this.params.flatWeekCallback(this, weekstart);
1235      }
1236  };
1237  
1238  /** Calls the week-clicked user handler (selectedHandler). */
1239  Calendar.prototype.hasMonthHandler = function () {
1240      return this.params && this.params.flat && this.params.flatMonthCallback;
1241  };
1242  
1243  Calendar.prototype.callMonthHandler = function () {
1244      if (this.hasMonthHandler()) {
1245          var monthstart = new Date(this.date);
1246          monthstart.setDate(1);
1247          this.params.flatMonthCallback(this, monthstart);
1248      }
1249  };
1250  
1251  /** Calls the second user handler (closeHandler). */
1252  Calendar.prototype.callCloseHandler = function () {
1253      if (this.onClose) {
1254          this.onClose(this);
1255      }
1256      this.hideShowCovered();
1257  };
1258  
1259  /** Removes the calendar object from the DOM tree and destroys it. */
1260  Calendar.prototype.destroy = function () {
1261      var el = this.element.parentNode;
1262      el.removeChild(this.element);
1263      Calendar._C = null;
1264      window.calendar = null;
1265  };
1266  
1267  /**
1268   *  Moves the calendar element to a different section in the DOM tree (changes
1269   *  its parent).
1270   */
1271  Calendar.prototype.reparent = function (new_parent) {
1272      var el = this.element;
1273      el.parentNode.removeChild(el);
1274      new_parent.appendChild(el);
1275  };
1276  
1277  // This gets called when the user presses a mouse button anywhere in the
1278  // document, if the calendar is shown.  If the click was outside the open
1279  // calendar this function closes it.
1280  Calendar._checkCalendar = function(ev) {
1281      if (!window.calendar) {
1282          return false;
1283      }
1284      var el = Calendar.is_ie ? Calendar.getElement(ev) : Calendar.getTargetElement(ev);
1285      for (; el != null && el != calendar.element; el = el.parentNode);
1286      if (el == null) {
1287          // calls closeHandler which should hide the calendar.
1288          window.calendar.callCloseHandler();
1289          return Calendar.stopEvent(ev);
1290      }
1291  };
1292  
1293  /** Shows the calendar. */
1294  Calendar.prototype.show = function () {
1295      var rows = this.table.getElementsByTagName("tr");
1296      for (var i = rows.length; i > 0;) {
1297          var row = rows[--i];
1298          Calendar.removeClass(row, "rowhilite");
1299          var cells = row.getElementsByTagName("td");
1300          for (var j = cells.length; j > 0;) {
1301              var cell = cells[--j];
1302              Calendar.removeClass(cell, "hilite");
1303              Calendar.removeClass(cell, "active");
1304          }
1305      }
1306      this.element.style.display = "block";
1307      this.hidden = false;
1308      if (this.isPopup) {
1309          window.calendar = this;
1310          Calendar.addEvent(document, "keydown", Calendar._keyEvent);
1311          Calendar.addEvent(document, "keypress", Calendar._keyEvent);
1312          Calendar.addEvent(document, "mousedown", Calendar._checkCalendar);
1313      }
1314      this.hideShowCovered();
1315  
1316      if (Calendar.is_ie5_mac && !this.isPopup)
1317          this.refresh();        // else the layout is broken
1318  };
1319  
1320  /**
1321   *  Hides the calendar.  Also removes any "hilite" from the class of any TD
1322   *  element.
1323   */
1324  Calendar.prototype.hide = function () {
1325      if (this.isPopup) {
1326          Calendar.removeEvent(document, "keydown", Calendar._keyEvent);
1327          Calendar.removeEvent(document, "keypress", Calendar._keyEvent);
1328          Calendar.removeEvent(document, "mousedown", Calendar._checkCalendar);
1329      }
1330      this.element.style.display = "none";
1331      this.hidden = true;
1332      this.hideShowCovered();
1333  };
1334  
1335  /**
1336   *  Shows the calendar at a given absolute position (beware that, depending on
1337   *  the calendar element style -- position property -- this might be relative
1338   *  to the parent's containing rectangle).
1339   */
1340  Calendar.prototype.showAt = function (x, y) {
1341      var s = this.element.style;
1342      s.left = x + "px";
1343      s.top = y + "px";
1344      this.show();
1345  };
1346  
1347  /** Shows the calendar near a given element. */
1348  Calendar.prototype.showAtElement = function (el, opts) {
1349      var self = this;
1350      var p = Calendar.getAbsolutePos(el);
1351      if (!opts || typeof opts != "string") {
1352          this.showAt(p.x, p.y + el.offsetHeight);
1353          return true;
1354      }
1355  	function fixPosition(box) {
1356          if (box.x < 0)
1357              box.x = 0;
1358          if (box.y < 0)
1359              box.y = 0;
1360          if (Calendar.is_ie5_mac) {    // the other approach gives negative values for ie5 mac
1361              var br = Calendar.getAbsolutePos(el);
1362              br.x = document.body.offsetWidth;
1363              br.y = document.body.offsetHeight;
1364          } else {
1365              var cp = document.createElement("div");
1366              var s = cp.style;
1367              s.position = "absolute";
1368              s.right = s.bottom = s.width = s.height = "0px";
1369              document.body.appendChild(cp);
1370              var br = Calendar.getAbsolutePos(cp);
1371              document.body.removeChild(cp);
1372          }
1373          if (Calendar.is_ie) {
1374              br.y += document.body.scrollTop;
1375              br.x += document.body.scrollLeft;
1376          } else {
1377              br.y += window.scrollY;
1378              br.x += window.scrollX;
1379          }
1380          var tmp = box.x + box.width - br.x;
1381          if (tmp > 0) box.x -= tmp;
1382          tmp = box.y + box.height - br.y;
1383          if (tmp > 0) box.y -= tmp;
1384      };
1385      this.element.style.display = "block";
1386      Calendar.continuation_for_the_fucking_khtml_browser = function() {
1387          var w = self.element.offsetWidth;
1388          var h = self.element.offsetHeight;
1389          self.element.style.display = "none";
1390          var valign = opts.substr(0, 1);
1391          var halign = "l";
1392          if (opts.length > 1) {
1393              halign = opts.substr(1, 1);
1394          }
1395          // vertical alignment
1396          switch (valign) {
1397              case "T": p.y -= h; break;
1398              case "B": p.y += el.offsetHeight; break;
1399              case "C": p.y += (el.offsetHeight - h) / 2; break;
1400              case "t": p.y += el.offsetHeight - h; break;
1401              case "b": break; // already there
1402          }
1403          // horizontal alignment
1404          switch (halign) {
1405              case "L": p.x -= w; break;
1406              case "R": p.x += el.offsetWidth; break;
1407              case "C": p.x += (el.offsetWidth - w) / 2; break;
1408              case "r": p.x += el.offsetWidth - w; break;
1409              case "l": break; // already there
1410          }
1411          p.width = w;
1412          p.height = h + 40;
1413          self.monthsCombo.style.display = "none";
1414          fixPosition(p);
1415          self.showAt(p.x, p.y);
1416      };
1417      if (Calendar.is_khtml)
1418          setTimeout("Calendar.continuation_for_the_fucking_khtml_browser()", 10);
1419      else
1420          Calendar.continuation_for_the_fucking_khtml_browser();
1421  };
1422  
1423  /** Customizes the date format. */
1424  Calendar.prototype.setDateFormat = function (str) {
1425      this.dateFormat = str;
1426  };
1427  
1428  /** Customizes the tooltip date format. */
1429  Calendar.prototype.setTtDateFormat = function (str) {
1430      this.ttDateFormat = str;
1431  };
1432  
1433  /**
1434   *  Tries to identify the date represented in a string.  If successful it also
1435   *  calls this.setDate which moves the calendar to the given date.
1436   */
1437  Calendar.prototype.parseDate = function (str, fmt) {
1438      var y = 0;
1439      var m = -1;
1440      var d = 0;
1441      var a = str.split(/\W+/);
1442      if (!fmt) {
1443          fmt = this.dateFormat;
1444      }
1445      var b = fmt.match(/%./g);
1446      var i = 0, j = 0;
1447      var hr = 0;
1448      var min = 0;
1449      for (i = 0; i < a.length; ++i) {
1450          if (!a[i])
1451              continue;
1452          switch (b[i]) {
1453              case "%d":
1454              case "%e":
1455              d = parseInt(a[i], 10);
1456              break;
1457  
1458              case "%m":
1459              m = parseInt(a[i], 10) - 1;
1460              break;
1461  
1462              case "%Y":
1463              case "%y":
1464              y = parseInt(a[i], 10);
1465              (y < 100) && (y += (y > 29) ? 1900 : 2000);
1466              break;
1467  
1468              case "%b":
1469              if (Calendar._SMN) {    // if we have short month-names, use them
1470                  for (j = 0; j < 12; ++j) {
1471                      if (Calendar._SMN[j].substr(0, a[i].length).toLowerCase() == a[i].toLowerCase()) { m = j; break; }
1472                  }
1473                  if (j < 12) break;
1474              }
1475              case "%B":
1476              for (j = 0; j < 12; ++j) {
1477                  if (Calendar._MN[j].substr(0, a[i].length).toLowerCase() == a[i].toLowerCase()) { m = j; break; }
1478              }
1479              break;
1480  
1481              case "%H":
1482              case "%I":
1483              case "%k":
1484              case "%l":
1485              hr = parseInt(a[i], 10);
1486              break;
1487  
1488              case "%P":
1489              case "%p":
1490              if (/pm/i.test(a[i]) && hr < 12)
1491                  hr += 12;
1492              break;
1493  
1494              case "%M":
1495              min = parseInt(a[i], 10);
1496              break;
1497          }
1498      }
1499      if (y != 0 && m != -1 && d != 0) {
1500          this.setDate(new Date(y, m, d, hr, min, 0));
1501          return;
1502      }
1503      y = 0; m = -1; d = 0;
1504      for (i = 0; i < a.length; ++i) {
1505          if (a[i].search(/[a-zA-Z]+/) != -1) {
1506              var t = -1;
1507              for (j = 0; j < 12; ++j) {
1508                  if (Calendar._MN[j].substr(0, a[i].length).toLowerCase() == a[i].toLowerCase()) { t = j; break; }
1509              }
1510              if (t != -1) {
1511                  if (m != -1) {
1512                      d = m+1;
1513                  }
1514                  m = t;
1515              }
1516          } else if (parseInt(a[i], 10) <= 12 && m == -1) {
1517              m = a[i]-1;
1518          } else if (parseInt(a[i], 10) > 31 && y == 0) {
1519              y = parseInt(a[i], 10);
1520              (y < 100) && (y += (y > 29) ? 1900 : 2000);
1521          } else if (d == 0) {
1522              d = a[i];
1523          }
1524      }
1525      if (y == 0) {
1526          var today = new Date();
1527          y = today.getFullYear();
1528      }
1529      if (m != -1 && d != 0) {
1530          this.setDate(new Date(y, m, d, hr, min, 0));
1531      }
1532  };
1533  
1534  Calendar.prototype.hideShowCovered = function () {
1535      var self = this;
1536      Calendar.continuation_for_the_fucking_khtml_browser = function() {
1537  		function getVisib(obj){
1538              var value = obj.style.visibility;
1539              if (!value) {
1540                  if (document.defaultView && typeof (document.defaultView.getComputedStyle) == "function") { // Gecko, W3C
1541                      if (!Calendar.is_khtml)
1542                          value = document.defaultView.
1543                              getComputedStyle(obj, "").getPropertyValue("visibility");
1544                      else
1545                          value = '';
1546                  } else if (obj.currentStyle) { // IE
1547                      value = obj.currentStyle.visibility;
1548                  } else
1549                      value = '';
1550              }
1551              return value;
1552          };
1553  
1554          var tags = new Array("applet", "iframe", "select");
1555          var el = self.element;
1556  
1557          var p = Calendar.getAbsolutePos(el);
1558          var EX1 = p.x;
1559          var EX2 = el.offsetWidth + EX1;
1560          var EY1 = p.y;
1561          var EY2 = el.offsetHeight + EY1;
1562  
1563          for (var k = tags.length; k > 0; ) {
1564              var ar = document.getElementsByTagName(tags[--k]);
1565              var cc = null;
1566  
1567              for (var i = ar.length; i > 0;) {
1568                  cc = ar[--i];
1569  
1570                  p = Calendar.getAbsolutePos(cc);
1571                  var CX1 = p.x;
1572                  var CX2 = cc.offsetWidth + CX1;
1573                  var CY1 = p.y;
1574                  var CY2 = cc.offsetHeight + CY1;
1575  
1576                  if (self.hidden || (CX1 > EX2) || (CX2 < EX1) || (CY1 > EY2) || (CY2 < EY1)) {
1577                      if (!cc.__msh_save_visibility) {
1578                          cc.__msh_save_visibility = getVisib(cc);
1579                      }
1580                      cc.style.visibility = cc.__msh_save_visibility;
1581                  } else {
1582                      if (!cc.__msh_save_visibility) {
1583                          cc.__msh_save_visibility = getVisib(cc);
1584                      }
1585                      cc.style.visibility = "hidden";
1586                  }
1587              }
1588          }
1589      };
1590      if (Calendar.is_khtml)
1591          setTimeout("Calendar.continuation_for_the_fucking_khtml_browser()", 10);
1592      else
1593          Calendar.continuation_for_the_fucking_khtml_browser();
1594  };
1595  
1596  /** Internal function; it displays the bar with the names of the weekday. */
1597  Calendar.prototype._displayWeekdays = function () {
1598      var fdow = this.firstDayOfWeek;
1599      var cell = this.firstdayname;
1600      var weekend = Calendar._TT["WEEKEND"];
1601      for (var i = 0; i < 7; ++i) {
1602          cell.className = "day name";
1603          var realday = (i + fdow) % 7;
1604          if (i && !(this.params && this.params.disableFirstDowChange)) {
1605              cell.ttip = Calendar._TT["DAY_FIRST"].replace("%s", Calendar._DN[realday]);
1606              cell.navtype = 100;
1607              cell.calendar = this;
1608              cell.fdow = realday;
1609              Calendar._add_evs(cell);
1610          }
1611          if (weekend.indexOf(realday.toString()) != -1) {
1612              Calendar.addClass(cell, "weekend");
1613          }
1614          Calendar._setCellText(cell,Calendar._SDN[(i + fdow) % 7]);
1615          cell = cell.nextSibling;
1616      }
1617  };
1618  
1619  /** Internal function.  Hides all combo boxes that might be displayed. */
1620  Calendar.prototype._hideCombos = function () {
1621      this.monthsCombo.style.display = "none";
1622      this.yearsCombo.style.display = "none";
1623  };
1624  
1625  /** Internal function.  Starts dragging the element. */
1626  Calendar.prototype._dragStart = function (ev) {
1627      if (this.dragging) {
1628          return;
1629      }
1630      this.dragging = true;
1631      var posX;
1632      var posY;
1633      if (Calendar.is_ie) {
1634          posY = window.event.clientY + document.body.scrollTop;
1635          posX = window.event.clientX + document.body.scrollLeft;
1636      } else {
1637          posY = ev.clientY + window.scrollY;
1638          posX = ev.clientX + window.scrollX;
1639      }
1640      var st = this.element.style;
1641      this.xOffs = posX - parseInt(st.left);
1642      this.yOffs = posY - parseInt(st.top);
1643      with (Calendar) {
1644          addEvent(document, "mousemove", calDragIt);
1645          addEvent(document, "mouseup", calDragEnd);
1646      }
1647  };
1648  
1649  // BEGIN: DATE OBJECT PATCHES
1650  
1651  /** Adds the number of days array to the Date object. */
1652  Date._MD = new Array(31,28,31,30,31,30,31,31,30,31,30,31);
1653  
1654  /** Constants used for time computations */
1655  Date.SECOND = 1000 /* milliseconds */;
1656  Date.MINUTE = 60 * Date.SECOND;
1657  Date.HOUR   = 60 * Date.MINUTE;
1658  Date.DAY    = 24 * Date.HOUR;
1659  Date.WEEK   =  7 * Date.DAY;
1660  
1661  /** Returns the number of days in the current month */
1662  Date.prototype.getMonthDays = function(month) {
1663      var year = this.getFullYear();
1664      if (typeof month == "undefined") {
1665          month = this.getMonth();
1666      }
1667      if (((0 == (year%4)) && ( (0 != (year%100)) || (0 == (year%400)))) && month == 1) {
1668          return 29;
1669      } else {
1670          return Date._MD[month];
1671      }
1672  };
1673  
1674  /** Returns the number of day in the year. */
1675  Date.prototype.getDayOfYear = function() {
1676      var now = new Date(this.getFullYear(), this.getMonth(), this.getDate(), 0, 0, 0);
1677      var then = new Date(this.getFullYear(), 0, 0, 0, 0, 0);
1678      var time = now - then;
1679      return Math.floor(time / Date.DAY);
1680  };
1681  
1682  /** Returns the number of the week in year, as defined in ISO 8601. */
1683  Date.prototype.getWeekNumber = function() {
1684      var d = new Date(this.getFullYear(), this.getMonth(), this.getDate(), 0, 0, 0);
1685      var DoW = d.getDay();
1686      d.setDate(d.getDate() - (DoW + 6) % 7 + 3); // Nearest Thu
1687      var ms = d.valueOf(); // GMT
1688      d.setMonth(0);
1689      d.setDate(4); // Thu in Week 1
1690      return Math.round((ms - d.valueOf()) / (7 * 864e5)) + 1;
1691  };
1692  
1693  /** Checks dates equality (ignores time) */
1694  Date.prototype.equalsTo = function(date) {
1695      return ((this.getFullYear() == date.getFullYear()) &&
1696          (this.getMonth() == date.getMonth()) &&
1697          (this.getDate() == date.getDate()) &&
1698          (this.getHours() == date.getHours()) &&
1699          (this.getMinutes() == date.getMinutes()));
1700  };
1701  
1702  /** Prints the date in a string according to the given format. */
1703  Date.prototype.print = function (str) {
1704      var m = this.getMonth();
1705      var d = this.getDate();
1706      var y = this.getFullYear();
1707      var wn = this.getWeekNumber();
1708      var w = this.getDay();
1709      var s = {};
1710      var hr = this.getHours();
1711      var pm = (hr >= 12);
1712      var ir = (pm) ? (hr - 12) : hr;
1713      var dy = this.getDayOfYear();
1714      if (ir == 0)
1715          ir = 12;
1716      var min = this.getMinutes();
1717      var sec = this.getSeconds();
1718      s["%a"] = Calendar._SDN[w]; // abbreviated weekday name [FIXME: I18N]
1719      s["%A"] = Calendar._DN[w]; // full weekday name
1720      s["%b"] = Calendar._SMN[m]; // abbreviated month name [FIXME: I18N]
1721      s["%B"] = Calendar._MN[m]; // full month name
1722      // FIXME: %c : preferred date and time representation for the current locale
1723      s["%C"] = 1 + Math.floor(y / 100); // the century number
1724      s["%d"] = (d < 10) ? ("0" + d) : d; // the day of the month (range 01 to 31)
1725      s["%e"] = d; // the day of the month (range 1 to 31)
1726      // FIXME: %D : american date style: %m/%d/%y
1727      // FIXME: %E, %F, %G, %g, %h (man strftime)
1728      s["%H"] = (hr < 10) ? ("0" + hr) : hr; // hour, range 00 to 23 (24h format)
1729      s["%I"] = (ir < 10) ? ("0" + ir) : ir; // hour, range 01 to 12 (12h format)
1730      s["%j"] = (dy < 100) ? ((dy < 10) ? ("00" + dy) : ("0" + dy)) : dy; // day of the year (range 001 to 366)
1731      s["%k"] = hr;        // hour, range 0 to 23 (24h format)
1732      s["%l"] = ir;        // hour, range 1 to 12 (12h format)
1733      s["%m"] = (m < 9) ? ("0" + (1+m)) : (1+m); // month, range 01 to 12
1734      s["%M"] = (min < 10) ? ("0" + min) : min; // minute, range 00 to 59
1735      s["%n"] = "\n";        // a newline character
1736      s["%p"] = pm ? "PM" : "AM";
1737      s["%P"] = pm ? "pm" : "am";
1738      // FIXME: %r : the time in am/pm notation %I:%M:%S %p
1739      // FIXME: %R : the time in 24-hour notation %H:%M
1740      s["%s"] = Math.floor(this.getTime() / 1000);
1741      s["%S"] = (sec < 10) ? ("0" + sec) : sec; // seconds, range 00 to 59
1742      s["%t"] = "\t";        // a tab character
1743      // FIXME: %T : the time in 24-hour notation (%H:%M:%S)
1744      s["%U"] = s["%W"] = s["%V"] = (wn < 10) ? ("0" + wn) : wn;
1745      s["%u"] = w + 1;    // the day of the week (range 1 to 7, 1 = MON)
1746      s["%w"] = w;        // the day of the week (range 0 to 6, 0 = SUN)
1747      // FIXME: %x : preferred date representation for the current locale without the time
1748      // FIXME: %X : preferred time representation for the current locale without the date
1749      s["%y"] = ('' + y).substr(2, 2); // year without the century (range 00 to 99)
1750      s["%Y"] = y;        // year with the century
1751      s["%%"] = "%";        // a literal '%' character
1752  
1753      var re = /%./g;
1754      var a = str.match(re);
1755      for (var i = 0; i < a.length; i++) {
1756          var tmp = s[a[i]];
1757          if (tmp) {
1758              re = new RegExp(a[i], 'g');
1759              str = str.replace(re, tmp);
1760          }
1761      }
1762      return str;
1763  };
1764  
1765  Date.prototype.__msh_oldSetFullYear = Date.prototype.setFullYear;
1766  Date.prototype.setFullYear = function(y) {
1767      var d = new Date(this);
1768      d.__msh_oldSetFullYear(y);
1769      if (d.getMonth() != this.getMonth())
1770          this.setDate(28);
1771      this.__msh_oldSetFullYear(y);
1772  };
1773  
1774  // END: DATE OBJECT PATCHES
1775  
1776  
1777  // global object that remembers the calendar
1778  window.calendar = null;