/** * DatePicker widget using Prototype and Scriptaculous. * (c) 2007 Mathieu Jondet * Eulerian Technologies * * DatePicker is freely distributable under the same terms as Prototype. * */ /** * DatePickerFormatter class for matching and stringifying dates. * * By Arturas Slajus . */ var DatePickerFormatter = Class.create(); DatePickerFormatter.prototype = { /** * Create a DatePickerFormatter. * * format: specify a format by passing 3 value array consisting of * "yyyy", "mm", "dd". Default: ["yyyy", "mm", "dd"]. * * separator: string for splitting the values. Default: "-". * * Use it like this: * var df = new DatePickerFormatter(["dd", "mm", "yyyy"], "/"); * df.current_date(); * df.match("7/7/2007"); */ initialize: function(format, separator) { if (Object.isUndefined(format)) format = ["yyyy", "mm", "dd"]; if (Object.isUndefined(separator)) separator = "-"; this._format = format; this.separator = separator; this._format_year_index = format.indexOf("yyyy"); this._format_month_index= format.indexOf("mm"); this._format_day_index = format.indexOf("dd"); this._year_regexp = /^\d{4}$/; this._month_regexp = /^0\d|1[012]|\d$/; this._day_regexp = /^0\d|[12]\d|3[01]|\d$/; }, /** * Match a string against date format. * Returns: [year, month, day] */ match: function(str) { var d = str.split(this.separator); if (d.length < 3) return false; var year = d[this._format_year_index].match(this._year_regexp); if (year) { year = year[0] } else { return false } var month = d[this._format_month_index].match(this._month_regexp); if (month) { month = month[0] } else { return false } var day = d[this._format_day_index].match(this._day_regexp); if (day) { day = day[0] } else { return false } return [year, month, day]; }, /** * Return current date according to format. */ current_date: function() { var d = new Date; return this.date_to_string( d.getFullYear(), d.getMonth() + 1, d.getDate() ); }, /** * Return a stringified date accordint to format. */ date_to_string: function(year, month, day, separator) { if (Object.isUndefined(separator)) separator = this.separator; var a = [0, 0, 0]; a[this._format_year_index] = year; a[this._format_month_index] = month.toPaddedString(2); a[this._format_day_index] = day.toPaddedString(2); return a.join(separator); } }; /** * DatePicker */ var DatePicker = Class.create(); DatePicker.prototype = { Version : '0.9.4', _relative : null, _div : null, _zindex : 1, _keepFieldEmpty: false, _daysInMonth : [31,28,31,30,31,30,31,31,30,31,30,31], _dateFormat : [ ["mm", "dd", "yyyy"], "/" ], /* language */ _language : 'en', _language_month : $H({ 'fr' : [ 'Janvier', 'Février', 'Mars', 'Avril', 'Mai', 'Juin', 'Juillet', 'Aout', 'Septembre', 'Octobre', 'Novembre', 'Décembre' ], 'en' : [ 'January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December' ], 'sp' : [ 'Enero', 'Febrero', 'Marzo', 'Abril', 'Mayo', 'Junio', 'Julio', 'Agosto', 'Septiembre', 'Octubre', 'Noviembre', 'Diciembre' ], 'it' : [ 'Gennaio', 'Febbraio', 'Marzo', 'Aprile', 'Maggio', 'Giugno', 'Luglio', 'Agosto', 'Settembre', 'Ottobre', 'Novembre', 'Dicembre' ], 'de' : [ 'Januar', 'Februar', 'März', 'April', 'Mai', 'Juni', 'Juli', 'August', 'September', 'Oktober', 'November', 'Dezember' ], 'pt' : [ 'Janeiro', 'Fevereiro', 'Março', 'Abril', 'Maio', 'Junho', 'Julho', 'Agosto', 'Setembro', 'Outubro', 'Novembro', 'Dezembro' ], 'hu' : [ 'Január', 'Február', 'Március', 'Április', 'Május', 'Június', 'Július', 'Augusztus', 'Szeptember', 'Október', 'November', 'December' ], 'lt' : [ 'Sausis', 'Vasaris', 'Kovas', 'Balandis', 'Gegužė', 'Birželis', 'Liepa', 'Rugjūtis', 'Rusėjis', 'Spalis', 'Lapkritis', 'Gruodis' ], 'nl' : [ 'januari', 'februari', 'maart', 'april', 'mei', 'juni', 'juli', 'augustus', 'september', 'oktober', 'november', 'december' ], 'dk' : [ 'Januar', 'Februar', 'Marts', 'April', 'Maj', 'Juni', 'Juli', 'August', 'September', 'Oktober', 'November', 'December' ], 'no' : [ 'Januar', 'Februar', 'Mars', 'April', 'Mai', 'Juni', 'Juli', 'August', 'September', 'Oktober', 'November', 'Desember' ], 'lv' : [ 'Janvāris', 'Februāris', 'Marts', 'Aprīlis', 'Maijs', 'Jūnijs', 'Jūlijs', 'Augusts', 'Septembris', 'Oktobris', 'Novembris', 'Decemberis' ], 'ja' : [ '1月', '2月', '3月', '4月', '5月', '6月', '7月', '8月', '9月', '10月', '11月', '12月' ], 'fi' : [ 'Tammikuu', 'Helmikuu', 'Maaliskuu', 'Huhtikuu', 'Toukokuu', 'Kesäkuu', 'Heinäkuu', 'Elokuu', 'Syyskuu', 'Lokakuu', 'Marraskuu', 'Joulukuu' ], 'ro' : [ 'Ianuarie', 'Februarie', 'Martie', 'Aprilie', 'Mai', 'Junie', 'Julie', 'August', 'Septembrie', 'Octombrie', 'Noiembrie', 'Decembrie' ], 'zh' : [ '1 月', '2 月', '3 月', '4 月', '5 月', '6 月', '7 月', '8 月', '9 月', '10月', '11月', '12月'], 'sv' : [ 'Januari', 'Februari', 'Mars', 'April', 'Maj', 'Juni', 'Juli', 'Augusti', 'September', 'Oktober', 'November', 'December' ] }), _language_day : $H({ 'fr' : [ 'Lun', 'Mar', 'Mer', 'Jeu', 'Ven', 'Sam', 'Dim' ], 'en' : [ 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun' ], 'sp' : [ 'Lun', 'Mar', 'Mie', 'Jue', 'Vie', 'Sàb', 'Dom' ], 'it' : [ 'Lun', 'Mar', 'Mer', 'Gio', 'Ven', 'Sab', 'Dom' ], 'de' : [ 'Mon', 'Die', 'Mit', 'Don', 'Fre', 'Sam', 'Son' ], 'pt' : [ 'Seg', 'Ter', 'Qua', 'Qui', 'Sex', 'Sá', 'Dom' ], 'hu' : [ 'Hé', 'Ke', 'Sze', 'Csü', 'Pé', 'Szo', 'Vas' ], 'lt' : [ 'Pir', 'Ant', 'Tre', 'Ket', 'Pen', 'Šeš', 'Sek' ], 'nl' : [ 'ma', 'di', 'wo', 'do', 'vr', 'za', 'zo' ], 'dk' : [ 'Man', 'Tir', 'Ons', 'Tor', 'Fre', 'Lør', 'Søn' ], 'no' : [ 'Man', 'Tir', 'Ons', 'Tor', 'Fre', 'Lør', 'Sun' ], 'lv' : [ 'P', 'O', 'T', 'C', 'Pk', 'S', 'Sv' ], 'ja' : [ '月', '火', '水', '木', '金', '土', '日' ], 'fi' : [ 'Ma', 'Ti', 'Ke', 'To', 'Pe', 'La', 'Su' ], 'ro' : [ 'Lun', 'Mar', 'Mie', 'Joi', 'Vin', 'Sam', 'Dum' ], 'zh' : [ '周一', '周二', '周三', '周四', '周五', '周六', '周日' ], 'sv' : [ 'Mån', 'Tis', 'Ons', 'Tor', 'Fre', 'Lör', 'Sön' ] }), _language_close : $H({ 'fr' : 'fermer', 'en' : 'close', 'sp' : 'cierre', 'it' : 'fine', 'de' : 'schliessen', 'pt' : 'fim', 'hu' : 'bezár', 'lt' : 'udaryti', 'nl' : 'sluiten', 'dk' : 'luk', 'no' : 'lukk', 'lv' : 'aizvērt', 'ja' : '閉じる', 'fi' : 'sulje', 'ro' : 'inchide', 'zh' : '关 闭', 'sv' : 'stäng' }), /* date manipulation */ _todayDate : new Date(), _current_date : null, _clickCallback : Prototype.emptyFunction, _cellCallback : Prototype.emptyFunction, _id_datepicker : null, _disablePastDate : false, _disableFutureDate : true, _oneDayInMs : 24 * 3600 * 1000, /* positionning */ _topOffset : 30, _leftOffset : 0, _isPositionned : false, _relativePosition : true, _setPositionTop : 0, _setPositionLeft : 0, _bodyAppend : false, /* Effects Adjustment */ _showEffect : "appear", _showDuration : 1, _enableShowEffect : true, _closeEffect : "fade", _closeEffectDuration : 0.3, _enableCloseEffect : true, _closeTimer : null, _enableCloseOnBlur : false, /* afterClose : called when the close function is executed */ _afterClose : Prototype.emptyFunction, /* return the name of current month in appropriate language */ getMonthLocale : function ( month ) { return this._language_month.get(this._language)[month]; }, getLocaleClose : function () { return this._language_close.get(this._language); }, _initCurrentDate : function () { /* Create the DateFormatter */ this._df = new DatePickerFormatter(this._dateFormat[0], this._dateFormat[1]); /* check if value in field is proper, if not set to today */ this._current_date = $F(this._relative); if (! this._df.match(this._current_date)) { this._current_date = this._df.current_date(); /* set the field value ? */ if (!this._keepFieldEmpty) $(this._relative).value = this._current_date; } var a_date = this._df.match(this._current_date); this._current_year = Number(a_date[0]); this._current_mon = Number(a_date[1]) - 1; this._current_day = Number(a_date[2]); }, /* init */ initialize : function ( h_p ) { /* arguments */ this._relative= h_p["relative"]; if (h_p["language"]) this._language = h_p["language"]; this._zindex = ( h_p["zindex"] ) ? parseInt(Number(h_p["zindex"])) : 1; if (!Object.isUndefined(h_p["keepFieldEmpty"])) this._keepFieldEmpty = h_p["keepFieldEmpty"]; if (Object.isFunction(h_p["clickCallback"])) this._clickCallback = h_p["clickCallback"]; if (!Object.isUndefined(h_p["leftOffset"])) this._leftOffset = parseInt(h_p["leftOffset"]); if (!Object.isUndefined(h_p["topOffset"])) this._topOffset = parseInt(h_p["topOffset"]); if (!Object.isUndefined(h_p["relativePosition"])) this._relativePosition = h_p["relativePosition"]; if (!Object.isUndefined(h_p["showEffect"])) this._showEffect = h_p["showEffect"]; if (!Object.isUndefined(h_p["enableShowEffect"])) this._enableShowEffect = h_p["enableShowEffect"]; if (!Object.isUndefined(h_p["showDuration"])) this._showDuration = h_p["showDuration"]; if (!Object.isUndefined(h_p["closeEffect"])) this._closeEffect = h_p["closeEffect"]; if (!Object.isUndefined(h_p["enableCloseEffect"])) this._enableCloseEffect = h_p["enableCloseEffect"]; if (!Object.isUndefined(h_p["closeEffectDuration"])) this._closeEffectDuration = h_p["closeEffectDuration"]; if (Object.isFunction(h_p["afterClose"])) this._afterClose = h_p["afterClose"]; if (!Object.isUndefined(h_p["externalControl"])) this._externalControl= h_p["externalControl"]; if (!Object.isUndefined(h_p["dateFormat"])) this._dateFormat = h_p["dateFormat"]; if (Object.isFunction(h_p["cellCallback"])) this._cellCallback = h_p["cellCallback"]; this._setPositionTop = ( h_p["setPositionTop"] ) ? parseInt(Number(h_p["setPositionTop"])) : 0; this._setPositionLeft = ( h_p["setPositionLeft"] ) ? parseInt(Number(h_p["setPositionLeft"])) : 0; if (!Object.isUndefined(h_p["enableCloseOnBlur"]) && h_p["enableCloseOnBlur"]) this._enableCloseOnBlur = true; if (!Object.isUndefined(h_p["disablePastDate"]) && h_p["disablePastDate"]) this._disablePastDate = true; if (!Object.isUndefined(h_p["disableFutureDate"]) && !h_p["disableFutureDate"]) this._disableFutureDate = false; this._id_datepicker = 'datepicker-'+this._relative; this._id_datepicker_prev = this._id_datepicker+'-prev'; this._id_datepicker_next = this._id_datepicker+'-next'; this._id_datepicker_hdr = this._id_datepicker+'-header'; this._id_datepicker_ftr = this._id_datepicker+'-footer'; /* build up calendar skel */ this._div = new Element('div', { id : this._id_datepicker, className : 'datepicker', style : 'display: none; z-index:'+this._zindex }); this._div.innerHTML = '
 <<  >> 
'; /* finally declare the event listener on input field */ Event.observe(this._relative, 'click', this.click.bindAsEventListener(this), false); /* need to append on body when doc is loaded for IE */ document.observe('dom:loaded', this.load.bindAsEventListener(this), false); /* automatically close when blur event is triggered */ if ( this._enableCloseOnBlur ) { Event.observe(this._relative, 'blur', function (e) { this._closeTimer = this.close.bind(this).delay(1); }.bindAsEventListener(this)); Event.observe(this._div, 'click', function (e) { if (this._closeTimer) { window.clearTimeout(this._closeTimer); this._closeTimer = null; } }); } }, /** * load : called when document is fully-loaded to append datepicker * to main object. */ load : function () { /* if externalControl defined set the observer on it */ if (this._externalControl) Event.observe(this._externalControl, 'click', this.click.bindAsEventListener(this), false); /* append to page */ if (this._relativeAppend) { /* append to parent node */ if ($(this._relative).parentNode) { this._div.innerHTML = this._wrap_in_iframe(this._div.innerHTML); $(this._relative).parentNode.appendChild( this._div ); } } else { /* append to body */ var body = document.getElementsByTagName("body").item(0); if (body) { this._div.innerHTML = this._wrap_in_iframe(this._div.innerHTML); body.appendChild(this._div); } if ( this._relativePosition ) { var a_pos = Element.cumulativeOffset($(this._relative)); this.setPosition(a_pos[1], a_pos[0]); } else { if (this._setPositionTop || this._setPositionLeft) this.setPosition(this._setPositionTop, this._setPositionLeft); } } /* init the date in field if needed */ this._initCurrentDate(); /* set the close locale content */ $(this._id_datepicker_ftr).innerHTML = this.getLocaleClose(); /* declare the observers for UI control */ Event.observe($(this._id_datepicker_prev), 'click', this.prevMonth.bindAsEventListener(this), false); Event.observe($(this._id_datepicker_next), 'click', this.nextMonth.bindAsEventListener(this), false); Event.observe($(this._id_datepicker_ftr), 'click', this.close.bindAsEventListener(this), false); }, /* hack for buggy form elements layering in IE */ _wrap_in_iframe : function ( content ) { return ( Prototype.Browser.IE ) ? "
" + content + "
" : content; }, /** * visible : return the visibility status of the datepicker. */ visible : function () { return $(this._id_datepicker).visible(); }, /** * click : called when input element is clicked */ click : function () { /* init the datepicker if it doesn't exists */ if ( $(this._id_datepicker) == null ) this.load(); if (!this._isPositionned && this._relativePosition) { /* position the datepicker relatively to element */ var a_lt = Element.positionedOffset($(this._relative)); $(this._id_datepicker).setStyle({ 'left' : Number(a_lt[0]+this._leftOffset)+'px', 'top' : Number(a_lt[1]+this._topOffset)+'px' }); this._isPositionned = true; } if (!this.visible()) { this._initCurrentDate(); this._redrawCalendar(); } /* eval the clickCallback function */ eval(this._clickCallback()); /* Effect toggle to fade-in / fade-out the datepicker */ if ( this._enableShowEffect ) { new Effect.toggle(this._id_datepicker, this._showEffect, { duration: this._showDuration }); } else { $(this._id_datepicker).show(); } }, /** * close : called when the datepicker is closed */ close : function () { if ( this._enableCloseEffect ) { switch(this._closeEffect) { case 'puff': new Effect.Puff(this._id_datepicker, { duration : this._closeEffectDuration }); break; case 'blindUp': new Effect.BlindUp(this._id_datepicker, { duration : this._closeEffectDuration }); break; case 'dropOut': new Effect.DropOut(this._id_datepicker, { duration : this._closeEffectDuration }); break; case 'switchOff': new Effect.SwitchOff(this._id_datepicker, { duration : this._closeEffectDuration }); break; case 'squish': new Effect.Squish(this._id_datepicker, { duration : this._closeEffectDuration }); break; case 'fold': new Effect.Fold(this._id_datepicker, { duration : this._closeEffectDuration }); break; case 'shrink': new Effect.Shrink(this._id_datepicker, { duration : this._closeEffectDuration }); break; default: new Effect.Fade(this._id_datepicker, { duration : this._closeEffectDuration }); break; }; } else { $(this._id_datepicker).hide(); } eval(this._afterClose()); }, /** * setDateFormat */ setDateFormat : function ( format, separator ) { if (Object.isUndefined(format)) format = this._dateFormat[0]; if (Object.isUndefined(separator)) separator = this._dateFormat[1]; this._dateFormat = [ format, separator ]; }, /** * setPosition : set the position of the datepicker. * param : t=top | l=left */ setPosition : function ( t, l ) { var h_pos = { 'top' : '0px', 'left' : '0px' }; if (!Object.isUndefined(t)) h_pos['top'] = Number(t)+this._topOffset+'px'; if (!Object.isUndefined(l)) h_pos['left']= Number(l)+this._leftOffset+'px'; $(this._id_datepicker).setStyle(h_pos); this._isPositionned = true; }, /** * _getMonthDays : given the year and month find the number of days. */ _getMonthDays : function ( year, month ) { if (((0 == (year%4)) && ( (0 != (year%100)) || (0 == (year%400)))) && (month == 1)) return 29; return this._daysInMonth[month]; }, /** * _buildCalendar : draw the days array for current date */ _buildCalendar : function () { var _self = this; var tbody = $(this._id_datepicker+'-tbody'); try { while ( tbody.hasChildNodes() ) tbody.removeChild(tbody.childNodes[0]); } catch ( e ) {}; /* generate day headers */ var trDay = new Element('tr'); this._language_day.get(this._language).each( function ( item ) { var td = new Element('td'); td.innerHTML = item; td.className = 'wday'; trDay.appendChild( td ); }); tbody.appendChild( trDay ); /* generate the content of days */ /* build-up days matrix */ var a_d = [ [ 0, 0, 0, 0, 0, 0, 0 ] ,[ 0, 0, 0, 0, 0, 0, 0 ] ,[ 0, 0, 0, 0, 0, 0, 0 ], [ 0, 0, 0, 0, 0, 0, 0 ], [ 0, 0, 0, 0, 0, 0, 0 ] ,[ 0, 0, 0, 0, 0, 0, 0 ] ]; /* set date at beginning of month to display */ var d = new Date(this._current_year, this._current_mon, 1, 12); /* start the day list on monday */ var startIndex = ( !d.getDay() ) ? 6 : d.getDay() - 1; var nbDaysInMonth = this._getMonthDays( this._current_year, this._current_mon); var daysIndex = 1; for ( var j = startIndex; j < 7; j++ ) { a_d[0][j] = { d : daysIndex ,m : this._current_mon ,y : this._current_year }; daysIndex++; } var a_prevMY = this._prevMonthYear(); var nbDaysInMonthPrev = this._getMonthDays(a_prevMY[1], a_prevMY[0]); for ( var j = 0; j < startIndex; j++ ) { a_d[0][j] = { d : Number(nbDaysInMonthPrev - startIndex + j + 1) ,m : Number(a_prevMY[0]) ,y : a_prevMY[1] ,c : 'outbound' }; } var switchNextMonth = false; var currentMonth = this._current_mon; var currentYear = this._current_year; for ( var i = 1; i < 6; i++ ) { for ( var j = 0; j < 7; j++ ) { a_d[i][j] = { d : daysIndex ,m : currentMonth ,y : currentYear ,c : ( switchNextMonth ) ? 'outbound' : ( ((daysIndex == this._todayDate.getDate()) && (this._current_mon == this._todayDate.getMonth()) && (this._current_year == this._todayDate.getFullYear())) ? 'today' : null) }; daysIndex++; /* if at the end of the month : reset counter */ if (daysIndex > nbDaysInMonth ) { daysIndex = 1; switchNextMonth = true; if (this._current_mon + 1 > 11 ) { currentMonth = 0; currentYear += 1; } else { currentMonth += 1; } } } } /* generate days for current date */ for ( var i = 0; i < 6; i++ ) { var tr = new Element('tr'); for ( var j = 0; j < 7; j++ ) { var h_ij = a_d[i][j]; var td = new Element('td'); /* id is : datepicker-day-mon-year or depending on language other way */ /* don't forget to add 1 on month for proper formmatting */ var id = $A([ this._relative, this._df.date_to_string(h_ij["y"], h_ij["m"]+1, h_ij["d"], '-') ]).join('-'); /* set id and classname for cell if exists */ td.setAttribute('id', id); if (h_ij["c"]) td.className = h_ij["c"]; /* on onclick : rebuild date value from id of current cell */ var _curDate = new Date(); _curDate.setFullYear(h_ij["y"], h_ij["m"], h_ij["d"]); if ( this._disablePastDate || this._disableFutureDate ) { if ( this._disablePastDate ) { var _res = ( _curDate >= this._todayDate ) ? true : false; this._bindCellOnClick( td, true, _res, h_ij["c"] ); } if ( this._disableFutureDate ) { var _res = ( this._todayDate.getTime() + this._oneDayInMs > _curDate.getTime() ) ? true : false; this._bindCellOnClick( td, true, _res, h_ij["c"] ); } } else { this._bindCellOnClick( td, false ); } td.innerHTML= h_ij["d"]; tr.appendChild( td ); } tbody.appendChild( tr ); } return tbody; }, /** * _bindCellOnClick : bind the cell onclick depending on status. */ _bindCellOnClick : function ( td, wcompare, compareresult, h_ij_c ) { var doBind = false; if ( wcompare ) { if ( compareresult ) { doBind = true; } else { td.className= ( h_ij_c ) ? 'nclick_outbound' : 'nclick'; } } else { doBind = true; } if ( doBind ) { var _self = this; td.onclick = function () { $(_self._relative).value = String($(this).readAttribute('id') ).replace(_self._relative+'-','').replace(/-/g, _self._df.separator); /* if we have a cellCallback defined call it and pass it the cell */ if (_self._cellCallback) _self._cellCallback(this); _self.close(); }; } }, /** * nextMonth : redraw the calendar content for next month. */ _nextMonthYear : function () { var c_mon = this._current_mon; var c_year = this._current_year; if (c_mon + 1 > 11) { c_mon = 0; c_year += 1; } else { c_mon += 1; } return [ c_mon, c_year ]; }, nextMonth : function () { var a_next = this._nextMonthYear(); var _nextMon = a_next[0]; var _nextYear = a_next[1]; var _curDate = new Date(); _curDate.setFullYear(_nextYear, _nextMon, 1); var _res = ( this._todayDate.getTime() + this._oneDayInMs > _curDate.getTime() ) ? true : false; if ( this._disableFutureDate && !_res ) return; this._current_mon = _nextMon; this._current_year = _nextYear; this._redrawCalendar(); }, /** * prevMonth : redraw the calendar content for previous month. */ _prevMonthYear : function () { var c_mon = this._current_mon; var c_year = this._current_year; if (c_mon - 1 < 0) { c_mon = 11; c_year -= 1; } else { c_mon -= 1; } return [ c_mon, c_year ]; }, prevMonth : function () { var a_prev = this._prevMonthYear(); var _prevMon = a_prev[0]; var _prevYear = a_prev[1]; var _curDate = new Date(); _curDate.setFullYear(_prevYear, _prevMon, 1); var _res = ( _curDate >= this._todayDate ) ? true : false; if ( this._disablePastDate && !_res ) return; this._current_mon = _prevMon; this._current_year = _prevYear; this._redrawCalendar(); }, _redrawCalendar : function () { this._setLocaleHdr(); this._buildCalendar(); }, _setLocaleHdr : function () { /* next link */ var a_next = this._nextMonthYear(); $(this._id_datepicker_next).setAttribute('title', this.getMonthLocale(a_next[0])+' '+a_next[1]); /* prev link */ var a_prev = this._prevMonthYear(); $(this._id_datepicker_prev).setAttribute('title', this.getMonthLocale(a_prev[0])+' '+a_prev[1]); /* header */ $(this._id_datepicker_hdr).update('   '+this.getMonthLocale(this._current_mon)+' '+this._current_year+'   '); } };