/*  Copyright Mihai Bazon, 2002-2005  |  www.bazon.net/mishoo * ----------------------------------------------------------- * * The DHTML Calendar, version 1.0 "It is happening again" * * Details and latest version at: * www.dynarch.com/projects/calendar * * This script is developed by Dynarch.com.  Visit us at www.dynarch.com. * * This script is distributed under the GNU Lesser General Public License. * Read the entire license text here: http://www.gnu.org/licenses/lgpl.html */// $Id: calendar.js,v 1.51 2005/03/07 16:44:31 mishoo Exp $/** The Calendar object constructor. */Calendar = function (firstDayOfWeek, dateStr, onSelected, onClose) {	// member variables	this.activeDiv = null;	this.currentDateEl = null;	this.getDateStatus = null;	this.getDateToolTip = null;	this.getDateText = null;	this.timeout = null;	this.onSelected = onSelected || null;	this.onClose = onClose || null;	this.dragging = false;	this.hidden = false;	this.minYear = 1970;	this.maxYear = 2050;	this.dateFormat = Calendar._TT["DEF_DATE_FORMAT"];	this.ttDateFormat = Calendar._TT["TT_DATE_FORMAT"];	this.isPopup = true;	this.weekNumbers = true;	this.firstDayOfWeek = typeof firstDayOfWeek == "number" ? firstDayOfWeek : Calendar._FD; // 0 for Sunday, 1 for Monday, etc.	this.showsOtherMonths = false;	this.dateStr = dateStr;	this.ar_days = null;	this.showsTime = false;	this.time24 = true;	this.yearStep = 2;	this.hiliteToday = true;	this.multiple = null;	// HTML elements	this.table = null;	this.element = null;	this.tbody = null;	this.firstdayname = null;	// Combo boxes	this.monthsCombo = null;	this.yearsCombo = null;	this.hilitedMonth = null;	this.activeMonth = null;	this.hilitedYear = null;	this.activeYear = null;	// Information	this.dateClicked = false;	// one-time initializations	if (typeof Calendar._SDN == "undefined") {		// table of short day names		if (typeof Calendar._SDN_len == "undefined")			Calendar._SDN_len = 3;		var ar = new Array();		for (var i = 8; i > 0;) {			ar[--i] = Calendar._DN[i].substr(0, Calendar._SDN_len);		}		Calendar._SDN = ar;		// table of short month names		if (typeof Calendar._SMN_len == "undefined")			Calendar._SMN_len = 3;		ar = new Array();		for (var i = 12; i > 0;) {			ar[--i] = Calendar._MN[i].substr(0, Calendar._SMN_len);		}		Calendar._SMN = ar;	}};// ** constants/// "static", needed for event handlers.Calendar._C = null;/// detect a special case of "web browser"Calendar.is_ie = ( /msie/i.test(navigator.userAgent) &&		   !/opera/i.test(navigator.userAgent) );Calendar.is_ie5 = ( Calendar.is_ie && /msie 5\.0/i.test(navigator.userAgent) );/// detect Opera browserCalendar.is_opera = /opera/i.test(navigator.userAgent);/// detect KHTML-based browsersCalendar.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 handlersCalendar.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");