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POHow to disable the previous dates in the java script calender..?
 

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  1. POHow to disable the previous dates in the java script calender..?
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    <p>I am using a javascript calender in my project. It is working perfectly. But i want to disable the previous dates in the calender. Code used for that calender is as below..</p> <pre><code> /* Code starts here*/ var datepickr = (function() { var datepickrs = [], currentDate = new Date(), date = { current: { year: function() { return currentDate.getFullYear(); }, month: { integer: function() { return currentDate.getMonth(); }, string: function(full) { var date = currentDate.getMonth(); return monthToStr(date, full); } }, day: function() { return currentDate.getDate(); } }, month: { string: function(full, currentMonthView) { var date = currentMonthView; return monthToStr(date, full); }, numDays: function(currentMonthView, currentYearView) { // checks to see if february is a leap year otherwise return the respective # of days return (currentMonthView == 1 &amp;&amp; !(currentYearView &amp; 3) &amp;&amp; (currentYearView % 1e2 || !(currentYearView % 4e2))) ? 29 : daysInMonth[currentMonthView]; } } }, weekdays = ['Sun', 'Mon', 'Tues', 'Wednes', 'Thurs', 'Fri', 'Satur'], months = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'], daysInMonth = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31], suffix = { 1: 'st', 2: 'nd', 3: 'rd', 21: 'st', 22: 'nd', 23: 'rd', 31: 'st' }, buildCache = [], handlers = { calendarClick: function(e) { if(e.target.className) { switch(e.target.className) { case 'prev-month': case 'prevMonth': this.currentMonthView--; if(this.currentMonthView &lt; 0) { this.currentYearView--; this.currentMonthView = 11; } rebuildCalendar.call(this); break; case 'next-month': case 'nextMonth': this.currentMonthView++; if(this.currentMonthView &gt; 11) { this.currentYearView++; this.currentMonthView = 0; } rebuildCalendar.call(this); break; case 'day': this.element.value = formatDate(new Date(this.currentYearView, this.currentMonthView, e.target.innerHTML).getTime(), this.config.dateFormat); this.close(); break; } } }, documentClick: function(e) { if(e.target != this.element &amp;&amp; e.target != this.calendar) { var parentNode = e.target.parentNode; if(parentNode != this.calender) { while(parentNode != this.calendar) { parentNode = parentNode.parentNode; if(parentNode == null) { this.close(); break; } } } } } }; function formatDate(milliseconds, dateFormat) { var formattedDate = '', dateObj = new Date(milliseconds), format = { d: function() { var day = format.j(); return (day &lt; 10) ? '0' + day : day; }, D: function() { return weekdays[format.w()].substring(0, 3); }, j: function() { return dateObj.getDate(); }, l: function() { return weekdays[format.w()] + 'day'; }, S: function() { return suffix[format.j()] || 'th'; }, w: function() { return dateObj.getDay(); }, F: function() { return monthToStr(format.n(), true); }, m: function() { var month = format.n() + 1; return (month &lt; 10) ? '0' + month : month; }, M: function() { return monthToStr(format.n(), false); }, n: function() { return dateObj.getMonth(); }, Y: function() { return dateObj.getFullYear(); }, y: function() { return format.Y().toString().substring(2, 4); } }, formatPieces = dateFormat.split(''); foreach(formatPieces, function(formatPiece) { formattedDate += format[formatPiece] ? format[formatPiece]() : formatPiece; }); return formattedDate; } function foreach(items, callback) { var i = 0, x = items.length; for(i; i &lt; x; i++) { if(callback(items[i], i) === false) { break; } } } function addEvent(element, eventType, callback) { if(element.addEventListener) { element.addEventListener(eventType, callback, false); } else if(element.attachEvent) { var fixedCallback = function(e) { e = e || window.event; e.preventDefault = (function(e) { return function() { e.returnValue = false; } })(e); e.stopPropagation = (function(e) { return function() { e.cancelBubble = true; } })(e); e.target = e.srcElement; callback.call(element, e); }; element.attachEvent('on' + eventType, fixedCallback); } } function removeEvent(element, eventType, callback) { if(element.removeEventListener) { element.removeEventListener(eventType, callback, false); } else if(element.detachEvent) { element.detachEvent('on' + eventType, callback); } } function buildNode(nodeName, attributes, content) { var element; if(!(nodeName in buildCache)) { buildCache[nodeName] = document.createElement(nodeName); } element = buildCache[nodeName].cloneNode(false); if(attributes != null) { for(var attribute in attributes) { element[attribute] = attributes[attribute]; } } if(content != null) { if(typeof(content) == 'object') { element.appendChild(content); } else { element.innerHTML = content; } } return element; } function monthToStr(date, full) { return ((full == true) ? months[date] : ((months[date].length &gt; 3) ? months[date].substring(0, 3) : months[date])); } function isToday(day, currentMonthView, currentYearView) { return day == date.current.day() &amp;&amp; currentMonthView == date.current.month.integer() &amp;&amp; currentYearView == date.current.year(); } function buildWeekdays() { var weekdayHtml = document.createDocumentFragment(); foreach(weekdays, function(weekday) { weekdayHtml.appendChild(buildNode('th', {}, weekday.substring(0, 2))); }); return weekdayHtml; } function rebuildCalendar() { while(this.calendarBody.hasChildNodes()){ this.calendarBody.removeChild(this.calendarBody.lastChild); } var firstOfMonth = new Date(this.currentYearView, this.currentMonthView, 1).getDay(), numDays = date.month.numDays(this.currentMonthView, this.currentYearView); this.currentMonth.innerHTML = date.month.string(this.config.fullCurrentMonth, this.currentMonthView) + ' ' + this.currentYearView; this.calendarBody.appendChild(buildDays(firstOfMonth, numDays, this.currentMonthView, this.currentYearView)); } function buildCurrentMonth(config, currentMonthView, currentYearView) { return buildNode('span', { className: 'current-month' }, date.month.string(config.fullCurrentMonth, currentMonthView) + ' ' + currentYearView); } function buildMonths(config, currentMonthView, currentYearView) { var months = buildNode('div', { className: 'months' }), prevMonth = buildNode('span', { className: 'prev-month' }, buildNode('span', { className: 'prevMonth' }, '&amp;lt;')), nextMonth = buildNode('span', { className: 'next-month' }, buildNode('span', { className: 'nextMonth' }, '&amp;gt;')); months.appendChild(prevMonth); months.appendChild(nextMonth); return months; } function buildDays(firstOfMonth, numDays, currentMonthView, currentYearView) { var calendarBody = document.createDocumentFragment(), row = buildNode('tr'), dayCount = 0, i; // print out previous month's "days" for(i = 1; i &lt;= firstOfMonth; i++) { row.appendChild(buildNode('td', null, '&amp;nbsp;')); dayCount++; } for(i = 1; i &lt;= numDays; i++) { // if we have reached the end of a week, wrap to the next line if(dayCount == 7) { calendarBody.appendChild(row); row = buildNode('tr'); dayCount = 0; } var todayClassName = isToday(i, currentMonthView, currentYearView) ? { className: 'today' } : null; row.appendChild(buildNode('td', todayClassName, buildNode('span', { className: 'day' }, i))); dayCount++; } // if we haven't finished at the end of the week, start writing out the "days" for the next month for(i = 1; i &lt;= (7 - dayCount); i++) { row.appendChild(buildNode('td', null, '&amp;nbsp;')); } calendarBody.appendChild(row); return calendarBody; } function buildCalendar() { var firstOfMonth = new Date(this.currentYearView, this.currentMonthView, 1).getDay(), numDays = date.month.numDays(this.currentMonthView, this.currentYearView), self = this; var inputLeft = inputTop = 0, obj = this.element; if(obj.offsetParent) { do { inputLeft += obj.offsetLeft; inputTop += obj.offsetTop; } while (obj = obj.offsetParent); } var calendarContainer = buildNode('div', { className: 'calendar' }); calendarContainer.style.cssText = 'display: none; position: absolute; top: ' + (inputTop + this.element.offsetHeight) + 'px; left: ' + inputLeft + 'px; z-index: 100;'; this.currentMonth = buildCurrentMonth(this.config, this.currentMonthView, this.currentYearView) var months = buildMonths(this.config, this.currentMonthView, this.currentYearView); months.appendChild(this.currentMonth); var calendar = buildNode('table', null, buildNode('thead', null, buildNode('tr', { className: 'weekdays' }, buildWeekdays()))); this.calendarBody = buildNode('tbody'); this.calendarBody.appendChild(buildDays(firstOfMonth, numDays, this.currentMonthView, this.currentYearView)); calendar.appendChild(this.calendarBody); calendarContainer.appendChild(months); calendarContainer.appendChild(calendar); document.body.appendChild(calendarContainer); addEvent(calendarContainer, 'click', function(e) { handlers.calendarClick.call(self, e); }); return calendarContainer; } return function(elementId, userConfig) { var self = this; this.element = document.getElementById(elementId); this.config = { fullCurrentMonth: true, dateFormat: 'F jS, Y' }; this.currentYearView = date.current.year(); this.currentMonthView = date.current.month.integer(); if(userConfig) { for(var key in userConfig) { if(this.config.hasOwnProperty(key)) { this.config[key] = userConfig[key]; } } } this.documentClick = function(e) { handlers.documentClick.call(self, e); } this.open = function(e) { addEvent(document, 'click', self.documentClick); foreach(datepickrs, function(datepickr) { if(datepickr != self) { datepickr.close(); } }); self.calendar.style.display = 'block'; } this.close = function() { removeEvent(document, 'click', self.documentClick); self.calendar.style.display = 'none'; } this.calendar = buildCalendar.call(this); datepickrs.push(this); if(this.element.nodeName == 'INPUT') { addEvent(this.element, 'focus', this.open); } else { addEvent(this.element, 'click', this.open); } } })(); /* Code Ends here*/ </code></pre> <p>In the above code do i want to add something more or want to change something..?</p> <p>Please let me know..</p> <p>Thanks in advance, Sree ram.</p>
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      1. POHow to disable the previous dates in the java script calender..?
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    1. COYou are asking yourself if you want to add or change something? Try something first please.
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      1. POHow to disable the previous dates in the java script calender..?
      1. USMihai Iorga
 

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