calendar.js

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/*  Copyright Mihai Bazon, 2002-2005  |  www.bazon.net/mishoo
 * The DHTML Calendar, version 1.0 "It is happening again"
 * Details and latest version at:
 * www.dynarch.com/projects/calendar
 * This script is developed by Dynarch.com.  Visit us at www.dynarch.com.
 * This script is distributed under the GNU Lesser General Public License.
 * Read the entire license text here: http://www.gnu.org/licenses/lgpl.html
// $Id: calendar.js,v 1.51 2005/03/07 16:44:31 mishoo Exp $
/** The Calendar object constructor. */
Calendar = function (firstDayOfWeek, dateStr, onSelected, onClose) {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; 
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;this.table = null;
this.element = null;
this.tbody = null;this.firstdayname = null;this.monthsCombo = null;this.yearsCombo = null;this.hilitedMonth = null;this.activeMonth = null;this.hilitedYear = null;
this.activeYear = null;this.dateClicked = false;
if (typeof Calendar._SDN == "undefined") {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;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;}};Calendar._C = null;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_opera = /opera/i.test(navigator.userAgent);Calendar.is_khtml = /Konqueror|Safari|KHTML/i.test(navigator.userAgent);Calendar.getAbsolutePos = function(el) {var SL = 0, ST = 0;var is_div = /^div$/i.test(el.tagName);if (is_div && el.scrollLeft)SL = el.scrollLeft;if (is_div && el.scrollTop)ST = el.scrollTop;var r = { x: el.offsetLeft - SL, y: el.offsetTop - ST };if (el.offsetParent) {var tmp = this.getAbsolutePos(el.offsetParent);r.x += tmp.x;r.y += tmp.y;}return r;};Calendar.isRelated = function (el, evt) {var related = evt.relatedTarget;if (!related) {var type = evt.type;if (type == "mouseover") {related = evt.fromElement;} else if (type == "mouseout") {related = evt.toElement;}}while (related) {if (related == el) {return true;}related = related.parentNode;}return false;};Calendar.removeClass = function(el, className) {if (!(el && el.className)) {return;}var cls = el.className.split(" ");var ar = new Array();for (var i = cls.length; i > 0;) {if (cls[--i] != className) {ar[ar.length] = cls[i];}}el.className = ar.join(" ");};Calendar.addClass = function(el, className) {Calendar.removeClass(el, className);el.className += " " + className;};Calendar.getElement = function(ev) {var f = Calendar.is_ie ? window.event.srcElement : ev.currentTarget;while (f.nodeType != 1 || /^div$/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) { el.attachEvent("on" + evname, func);} else if (el.addEventListener) { el.addEventListener(evname, func, true);} else {el["on" + evname] = func;}};Calendar.removeEvent = function(el, evname, func) {if (el.detachEvent) { el.detachEvent("on" + evname, func);} else if (el.removeEventListener) { el.removeEventListener(evname, func, true);} else {el["on" + evname] = null;}};Calendar.createElement = function(type, parent) {var el = null;if (document.createElementNS) {el = document.createElementNS("http://www.w3.org/1999/xhtml", type);} else {el = document.createElement(type);}if (typeof parent != "undefined") {parent.appendChild(el);}return el;};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")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")ycw = 50;s.left = (cd.offsetLeft + cd.offsetWidth - ycw) + "px";}s.top = (cd.offsetTop + cd.offsetHeight) + "px";}};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;} elsedx = pos.x - x;if (dx < 0) dx = 0;var range = el._range;var current = el._current;var count = Math.floor(dx / 10) % range.length;for (var i = range.length; --i >= 0;)if (range[i] == current)
break;
while (count-- > 0)
if (decrease) {
if (--i < 0)
i = range.length - 1;
} else if ( ++i >= range.length )
i = 0;
var newval = range[i];
el.innerHTML = newval;cal.onUpdateTime();
}
var mon = Calendar.findMonth(target);
if (mon) {
if (mon.month != cal.date.getMonth()) {
if (cal.hilitedMonth) {
Calendar.removeClass(cal.hilitedMonth, "hilite");
}
Calendar.addClass(mon, "hilite");
cal.hilitedMonth = mon;
} else if (cal.hilitedMonth) {
Calendar.removeClass(cal.hilitedMonth, "hilite");
}
} else {
if (cal.hilitedMonth) {Calendar.removeClass(cal.hilitedMonth, "hilite");}var year = Calendar.findYear(target);if (year) {if (year.year != cal.date.getFullYear()) {if (cal.hilitedYear) {Calendar.removeClass(cal.hilitedYear, "hilite");}Calendar.addClass(year, "hilite");cal.hilitedYear = year;} else if (cal.hilitedYear) {Calendar.removeClass(cal.hilitedYear, "hilite");}} else if (cal.hilitedYear) {Calendar.removeClass(cal.hilitedYear, "hilite");}}return Calendar.stopEvent(ev);};Calendar.tableMouseDown = function (ev) {if (Calendar.getTargetElement(ev) == Calendar.getElement(ev)) {return Calendar.stopEvent(ev);}};Calendar.calDragIt = function (ev) {var cal = Calendar._C;if (!(cal && cal.dragging)) {return false;}var posX;var posY;if (Calendar.is_ie) {posY = window.event.clientY + document.body.scrollTop;posX = window.event.clientX + document.body.scrollLeft;} else {posX = ev.pageX;posY = ev.pageY;}cal.hideShowCovered();var st = cal.element.style;st.left = (posX - cal.xOffs) + "px";st.top = (posY - cal.yOffs) + "px";return Calendar.stopEvent(ev);};Calendar.calDragEnd = function (ev) {var cal = Calendar._C;if (!cal) {return false;}cal.dragging = false;with (Calendar) {removeEvent(document, "mousemove", calDragIt);removeEvent(document, "mouseup", calDragEnd);tableMouseUp(ev);}cal.hideShowCovered();};Calendar.dayMouseDown = function(ev) {var el = Calendar.getElement(ev);
if (el.disabled) {
return false;
}
var cal = el.calendar;
cal.activeDiv = el;
Calendar._C = cal;
if (el.navtype != 300) with (Calendar) {
if (el.navtype == 50) {
el._current = el.innerHTML;
addEvent(document, "mousemove", tableMouseOver);
} else
addEvent(document, Calendar.is_ie5 ? "mousemove" : "mouseover", tableMouseOver);
addClass(el, "hilite active");
addEvent(document, "mouseup", tableMouseUp);
} else if (cal.isPopup) {
cal._dragStart(ev);
}
if (el.navtype == -1 || el.navtype == 1) {
if (cal.timeout) clearTimeout(cal.timeout);
cal.timeout = setTimeout("Calendar.showMonthsCombo()", 250);
} else if (el.navtype == -2 || el.navtype == 2) {
if (cal.timeout) clearTimeout(cal.timeout);
cal.timeout = setTimeout((el.navtype > 0) ? "Calendar.showYearsCombo(true)" : "Calendar.showYearsCombo(false)", 250);
} else {
cal.timeout = null;
}
return Calendar.stopEvent(ev);
};Calendar.dayMouseDblClick = function(ev) {
Calendar.cellClick(Calendar.getElement(ev), ev || window.event);
if (Calendar.is_ie) {
document.selection.empty();
}
};Calendar.dayMouseOver = function(ev) {
var el = Calendar.getElement(ev);
if (Calendar.isRelated(el, ev) || Calendar._C || el.disabled) {
return false;
}
if (el.ttip) {
if (el.ttip.substr(0, 1) == "_") {
el.ttip = el.caldate.print(el.calendar.ttDateFormat) + el.ttip.substr(1);
}
el.calendar.tooltips.innerHTML = el.ttip;
}
if (el.navtype != 300) {
Calendar.addClass(el, "hilite");
if (el.caldate) {
Calendar.addClass(el.parentNode, "rowhilite");
}
}
return Calendar.stopEvent(ev);
};Calendar.dayMouseOut = function(ev) {
with (Calendar) {
var el = getElement(ev);
if (isRelated(el, ev) || _C || el.disabled)
return false;
removeClass(el, "hilite");
if (el.caldate)
removeClass(el.parentNode, "rowhilite");
if (el.calendar)
el.calendar.tooltips.innerHTML = _TT["SEL_DATE"];
return stopEvent(ev);
}
};
Calendar.cellClick = function(el, ev) {
var cal = el.calendar;
var closing = false;
var newdate = false;
var date = null;
if (typeof el.navtype == "undefined") {
if (cal.currentDateEl) {
Calendar.removeClass(cal.currentDateEl, "selected");
Calendar.addClass(el, "selected");
closing = (cal.currentDateEl == el);
if (!closing) {
cal.currentDateEl = el;
}
}
cal.date.setDateOnly(el.caldate);
date = cal.date;
var other_month = !(cal.dateClicked = !el.otherMonth);
if (!other_month && !cal.currentDateEl)
cal._toggleMultipleDate(new Date(date));
else
newdate = !el.disabled;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()); 
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 {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 <[e-mail]> 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: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();
}
};
Calendar.prototype.create = function (_par) {
var parent = null;
if (! _par) {
parent = document.getElementsByTagName("body")[0];
this.isPopup = true;
} else {
parent = _par;
this.isPopup = false;
}
this.date = this.dateStr ? new Date(this.dateStr) : new Date();var table = Calendar.createElement("table");
this.table = table;
table.cellSpacing = 0;
table.cellPadding = 0;
table.calendar = this;
Calendar.addEvent(table, "mousedown", Calendar.tableMouseDown);var div = Calendar.createElement("div");
this.element = div;
div.className = "calendar";
if (this.isPopup) {
div.style.position = "absolute";
div.style.display = "none";
}
div.appendChild(table);var thead = Calendar.createElement("thead", table);
var cell = null;
var row = null;var cal = this;
var hh = function (text, cs, navtype) {
cell = Calendar.createElement("td", row);
cell.colSpan = cs;
cell.className = "button";
if (navtype != 0 && Math.abs(navtype) <= 2)
cell.className += " nav";
Calendar._add_evs(cell);
cell.calendar = cal;
cell.navtype = navtype;
cell.innerHTML = "<div unselectable='on'>" + text + "</div>";
return cell;
};row = Calendar.createElement("tr", thead);
var title_length = 6;
(this.isPopup) && --title_length;
(this.weekNumbers) && ++title_length;hh("?", 1, 400).ttip = Calendar._TT["INFO"];
this.title = hh("", title_length, 300);
this.title.className = "title";
if (this.isPopup) {
this.title.ttip = Calendar._TT["DRAG_TO_MOVE"];
this.title.style.cursor = "move";
hh("&#x00d7;", 1, 200).ttip = Calendar._TT["CLOSE"];
}row = Calendar.createElement("tr", thead);
row.className = "headrow";this._nav_py = hh("&#x00ab;", 1, -2);
this._nav_py.ttip = Calendar._TT["PREV_YEAR"];this._nav_pm = hh("‹", 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("›", 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"];
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