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- function arrayExists(array, x) {
- for (var i = 0; i < array.length; i++) {
- if (array[i] == x) return true;
- }
- return false;
- }
- Date.prototype.formatDate = function (input,time) {
- // formatDate :
- // a PHP date like function, for formatting date strings
- // See: http://www.php.net/date
- //
- // input : format string
- // time : epoch time (seconds, and optional)
- //
- // if time is not passed, formatting is based on
- // the current "this" date object's set time.
- //
- // supported:
- // a, A, B, d, D, F, g, G, h, H, i, j, l (lowercase L), L,
- // m, M, n, O, r, s, S, t, U, w, W, y, Y, z
- //
- // unsupported:
- // I (capital i), T, Z
- var switches = ["a", "A", "B", "d", "D", "F", "g", "G", "h", "H",
- "i", "j", "l", "L", "m", "M", "n", "O", "r", "s",
- "S", "t", "U", "w", "W", "y", "Y", "z"];
- var daysLong = ["Sunday", "Monday", "Tuesday", "Wednesday",
- "Thursday", "Friday", "Saturday"];
- var daysShort = ["Sun", "Mon", "Tue", "Wed",
- "Thu", "Fri", "Sat"];
- var monthsShort = ["Jan", "Feb", "Mar", "Apr",
- "May", "Jun", "Jul", "Aug", "Sep",
- "Oct", "Nov", "Dec"];
- var monthsLong = ["January", "February", "March", "April",
- "May", "June", "July", "August", "September",
- "October", "November", "December"];
- var daysSuffix = ["st", "nd", "rd", "th", "th", "th", "th", // 1st - 7th
- "th", "th", "th", "th", "th", "th", "th", // 8th - 14th
- "th", "th", "th", "th", "th", "th", "st", // 15th - 21st
- "nd", "rd", "th", "th", "th", "th", "th", // 22nd - 28th
- "th", "th", "st"]; // 29th - 31st
- function a() {
- // Lowercase Ante meridiem and Post meridiem
- return self.getHours() > 11? "pm" : "am";
- }
- function A() {
- // Uppercase Ante meridiem and Post meridiem
- return self.getHours() > 11? "PM" : "AM";
- }
- function B(){
- // Swatch internet time. code simply grabbed from ppk,
- // since I was feeling lazy:
- // http://www.xs4all.nl/~ppk/js/beat.html
- var off = (self.getTimezoneOffset() + 60)*60;
- var theSeconds = (self.getHours() * 3600) +
- (self.getMinutes() * 60) +
- self.getSeconds() + off;
- var beat = Math.floor(theSeconds/86.4);
- if (beat > 1000) beat -= 1000;
- if (beat < 0) beat += 1000;
- if ((""+beat).length == 1) beat = "00"+beat;
- if ((""+beat).length == 2) beat = "0"+beat;
- return beat;
- }
- function d() {
- // Day of the month, 2 digits with leading zeros
- return new String(self.getDate()).length == 1?
- "0"+self.getDate() : self.getDate();
- }
- function D() {
- // A textual representation of a day, three letters
- return daysShort[self.getDay()];
- }
- function F() {
- // A full textual representation of a month
- return monthsLong[self.getMonth()];
- }
- function g() {
- // 12-hour format of an hour without leading zeros
- return self.getHours() > 12? self.getHours()-12 : self.getHours();
- }
- function G() {
- // 24-hour format of an hour without leading zeros
- return self.getHours();
- }
- function h() {
- // 12-hour format of an hour with leading zeros
- if (self.getHours() > 12) {
- var s = new String(self.getHours()-12);
- return s.length == 1?
- "0"+ (self.getHours()-12) : self.getHours()-12;
- } else {
- var s = new String(self.getHours());
- return s.length == 1?
- "0"+self.getHours() : self.getHours();
- }
- }
- function H() {
- // 24-hour format of an hour with leading zeros
- return new String(self.getHours()).length == 1?
- "0"+self.getHours() : self.getHours();
- }
- function i() {
- // Minutes with leading zeros
- return new String(self.getMinutes()).length == 1?
- "0"+self.getMinutes() : self.getMinutes();
- }
- function j() {
- // Day of the month without leading zeros
- return self.getDate();
- }
- function l() {
- // A full textual representation of the day of the week
- return daysLong[self.getDay()];
- }
- function L() {
- // leap year or not. 1 if leap year, 0 if not.
- // the logic should match iso's 8601 standard.
- var y_ = Y();
- if (
- (y_ % 4 == 0 && y_ % 100 != 0) ||
- (y_ % 4 == 0 && y_ % 100 == 0 && y_ % 400 == 0)
- ) {
- return 1;
- } else {
- return 0;
- }
- }
- function m() {
- // Numeric representation of a month, with leading zeros
- return self.getMonth() < 9?
- "0"+(self.getMonth()+1) :
- self.getMonth()+1;
- }
- function M() {
- // A short textual representation of a month, three letters
- return monthsShort[self.getMonth()];
- }
- function n() {
- // Numeric representation of a month, without leading zeros
- return self.getMonth()+1;
- }
- function O() {
- // Difference to Greenwich time (GMT) in hours
- var os = Math.abs(self.getTimezoneOffset());
- var h = ""+Math.floor(os/60);
- var m = ""+(os%60);
- h.length == 1? h = "0"+h:1;
- m.length == 1? m = "0"+m:1;
- return self.getTimezoneOffset() < 0 ? "+"+h+m : "-"+h+m;
- }
- function r() {
- // RFC 822 formatted date
- var r; // result
- // Thu , 21 Dec 2000
- r = D() + ", " + j() + " " + M() + " " + Y() +
- // 16 : 01 : 07 +0200
- " " + H() + ":" + i() + ":" + s() + " " + O();
- return r;
- }
- function S() {
- // English ordinal suffix for the day of the month, 2 characters
- return daysSuffix[self.getDate()-1];
- }
- function s() {
- // Seconds, with leading zeros
- return new String(self.getSeconds()).length == 1?
- "0"+self.getSeconds() : self.getSeconds();
- }
- function t() {
- // thanks to Matt Bannon for some much needed code-fixes here!
- var daysinmonths = [null,31,28,31,30,31,30,31,31,30,31,30,31];
- if (L()==1 && n()==2) return 29; // leap day
- return daysinmonths[n()];
- }
- function U() {
- // Seconds since the Unix Epoch (January 1 1970 00:00:00 GMT)
- return Math.round(self.getTime()/1000);
- }
- function W() {
- // Weeknumber, as per ISO specification:
- // http://www.cl.cam.ac.uk/~mgk25/iso-time.html
- // if the day is three days before newyears eve,
- // there's a chance it's "week 1" of next year.
- // here we check for that.
- var beforeNY = 364+L() - z();
- var afterNY = z();
- var weekday = w()!=0?w()-1:6; // makes sunday (0), into 6.
- if (beforeNY <= 2 && weekday <= 2-beforeNY) {
- return 1;
- }
- // similarly, if the day is within threedays of newyears
- // there's a chance it belongs in the old year.
- var ny = new Date("January 1 " + Y() + " 00:00:00");
- var nyDay = ny.getDay()!=0?ny.getDay()-1:6;
- if (
- (afterNY <= 2) &&
- (nyDay >=4) &&
- (afterNY >= (6-nyDay))
- ) {
- // Since I'm not sure we can just always return 53,
- // i call the function here again, using the last day
- // of the previous year, as the date, and then just
- // return that week.
- var prevNY = new Date("December 31 " + (Y()-1) + " 00:00:00");
- return prevNY.formatDate("W");
- }
- // week 1, is the week that has the first thursday in it.
- // note that this value is not zero index.
- if (nyDay <= 3) {
- // first day of the year fell on a thursday, or earlier.
- return 1 + Math.floor( ( z() + nyDay ) / 7 );
- } else {
- // first day of the year fell on a friday, or later.
- return 1 + Math.floor( ( z() - ( 7 - nyDay ) ) / 7 );
- }
- }
- function w() {
- // Numeric representation of the day of the week
- return self.getDay();
- }
- function Y() {
- // A full numeric representation of a year, 4 digits
- // we first check, if getFullYear is supported. if it
- // is, we just use that. ppks code is nice, but wont
- // work with dates outside 1900-2038, or something like that
- if (self.getFullYear) {
- var newDate = new Date("January 1 2001 00:00:00 +0000");
- var x = newDate .getFullYear();
- if (x == 2001) {
- // i trust the method now
- return self.getFullYear();
- }
- }
- // else, do this:
- // codes thanks to ppk:
- // http://www.xs4all.nl/~ppk/js/introdate.html
- var x = self.getYear();
- var y = x % 100;
- y += (y < 38) ? 2000 : 1900;
- return y;
- }
- function y() {
- // A two-digit representation of a year
- var y = Y()+"";
- return y.substring(y.length-2,y.length);
- }
- function z() {
- // The day of the year, zero indexed! 0 through 366
- var t = new Date("January 1 " + Y() + " 00:00:00");
- var diff = self.getTime() - t.getTime();
- return Math.floor(diff/1000/60/60/24);
- }
- var self = this;
- if (time) {
- // save time
- var prevTime = self.getTime();
- self.setTime(time);
- }
- var ia = input.split("");
- var ij = 0;
- while (ia[ij]) {
- if (ia[ij] == "\\") {
- // this is our way of allowing users to escape stuff
- ia.splice(ij,1);
- } else {
- if (arrayExists(switches,ia[ij])) {
- ia[ij] = eval(ia[ij] + "()");
- }
- }
- ij++;
- }
- // reset time, back to what it was
- if (prevTime) {
- self.setTime(prevTime);
- }
- return ia.join("");
- }
- var date = new Date("1/1/2007 1:11:11");
- for (i = 0; i < 500; ++i) {
- var shortFormat = date.formatDate("Y-m-d");
- var longFormat = date.formatDate("l, F d, Y g:i:s A");
- date.setTime(date.getTime() + 84266956);
- }
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