Show:
                            /**
                             * The `datatype` module is an alias for three utilities, Y.Date,
                             * Y.Number and Y.XML, that provide type-conversion and string-formatting
                             * convenience methods for various JavaScript object types.
                             *
                             * @module datatype
                             * @main datatype
                             */
                            
                            /**
                             * The Date Utility provides type-conversion and string-formatting
                             * convenience methods for Dates.
                             *
                             * @module datatype-date
                             * @main datatype-date
                             */
                            
                            /**
                             * Date module.
                             *
                             * @module datatype-date
                             */
                            
                            /**
                             * Format date module implements strftime formatters for javascript based on the
                             * Open Group specification defined at
                             * http://www.opengroup.org/onlinepubs/007908799/xsh/strftime.html
                             * This implementation does not include modified conversion specifiers (i.e., Ex and Ox)
                             *
                             * @module datatype-date
                             * @submodule datatype-date-format
                             */
                            
                            /**
                             * Date provides a set of utility functions to operate against Date objects.
                             *
                             * @class Date
                             * @static
                             */
                            
                            /**
                             * Pad a number with leading spaces, zeroes or something else
                             * @method xPad
                             * @param x {Number}    The number to be padded
                             * @param pad {String}  The character to pad the number with
                             * @param r {Number}    (optional) The base of the pad, eg, 10 implies to two digits, 100 implies to 3 digits.
                             * @private
                             */
                            var xPad=function (x, pad, r)
                            {
                                if(typeof r === "undefined")
                                {
                                    r=10;
                                }
                                pad = pad + "";
                                for( ; parseInt(x, 10)<r && r>1; r/=10) {
                                    x = pad + x;
                                }
                                return x.toString();
                            };
                            
                            var Dt = {
                                formats: {
                                    a: function (d, l) { return l.a[d.getDay()]; },
                                    A: function (d, l) { return l.A[d.getDay()]; },
                                    b: function (d, l) { return l.b[d.getMonth()]; },
                                    B: function (d, l) { return l.B[d.getMonth()]; },
                                    C: function (d) { return xPad(parseInt(d.getFullYear()/100, 10), 0); },
                                    d: ["getDate", "0"],
                                    e: ["getDate", " "],
                                    E: "getDate",
                                    g: function (d) { return xPad(parseInt(Dt.formats.G(d)%100, 10), 0); },
                                    G: function (d) {
                                            var y = d.getFullYear();
                                            var V = parseInt(Dt.formats.V(d), 10);
                                            var W = parseInt(Dt.formats.W(d), 10);
                            
                                            if(W > V) {
                                                y++;
                                            } else if(W===0 && V>=52) {
                                                y--;
                                            }
                            
                                            return y;
                                        },
                                    H: ["getHours", "0"],
                                    I: function (d) { var I=d.getHours()%12; return xPad(I===0?12:I, 0); },
                                    j: function (d) {
                                            var gmd_1 = new Date("" + d.getFullYear() + "/1/1 GMT");
                                            var gmdate = new Date("" + d.getFullYear() + "/" + (d.getMonth()+1) + "/" + d.getDate() + " GMT");
                                            var ms = gmdate - gmd_1;
                                            var doy = parseInt(ms/60000/60/24, 10)+1;
                                            return xPad(doy, 0, 100);
                                        },
                                    k: ["getHours", " "],
                                    l: function (d) { var I=d.getHours()%12; return xPad(I===0?12:I, " "); },
                                    m: function (d) { return xPad(d.getMonth()+1, 0); },
                                    M: ["getMinutes", "0"],
                                    p: function (d, l) { return l.p[d.getHours() >= 12 ? 1 : 0 ]; },
                                    P: function (d, l) { return l.P[d.getHours() >= 12 ? 1 : 0 ]; },
                                    s: function (d, l) { return parseInt(d.getTime()/1000, 10); },
                                    S: ["getSeconds", "0"],
                                    u: function (d) { var dow = d.getDay(); return dow===0?7:dow; },
                                    U: function (d) {
                                            var doy = parseInt(Dt.formats.j(d), 10);
                                            var rdow = 6-d.getDay();
                                            var woy = parseInt((doy+rdow)/7, 10);
                                            return xPad(woy, 0);
                                        },
                                    V: function (d) {
                                            var woy = parseInt(Dt.formats.W(d), 10);
                                            var dow1_1 = (new Date("" + d.getFullYear() + "/1/1")).getDay();
                                            // First week is 01 and not 00 as in the case of %U and %W,
                                            // so we add 1 to the final result except if day 1 of the year
                                            // is a Monday (then %W returns 01).
                                            // We also need to subtract 1 if the day 1 of the year is
                                            // Friday-Sunday, so the resulting equation becomes:
                                            var idow = woy + (dow1_1 > 4 || dow1_1 <= 1 ? 0 : 1);
                                            if(idow === 53 && (new Date("" + d.getFullYear() + "/12/31")).getDay() < 4)
                                            {
                                                idow = 1;
                                            }
                                            else if(idow === 0)
                                            {
                                                idow = Dt.formats.V(new Date("" + (d.getFullYear()-1) + "/12/31"));
                                            }
                            
                                            return xPad(idow, 0);
                                        },
                                    w: "getDay",
                                    W: function (d) {
                                            var doy = parseInt(Dt.formats.j(d), 10);
                                            var rdow = 7-Dt.formats.u(d);
                                            var woy = parseInt((doy+rdow)/7, 10);
                                            return xPad(woy, 0, 10);
                                        },
                                    y: function (d) { return xPad(d.getFullYear()%100, 0); },
                                    Y: "getFullYear",
                                    z: function (d) {
                                            var o = d.getTimezoneOffset();
                                            var H = xPad(parseInt(Math.abs(o/60), 10), 0);
                                            var M = xPad(Math.abs(o%60), 0);
                                            return (o>0?"-":"+") + H + M;
                                        },
                                    Z: function (d) {
                                        var tz = d.toString().replace(/^.*:\d\d( GMT[+-]\d+)? \(?([A-Za-z ]+)\)?\d*$/, "$2").replace(/[a-z ]/g, "");
                                        if(tz.length > 4) {
                                            tz = Dt.formats.z(d);
                                        }
                                        return tz;
                                    },
                                    "%": function (d) { return "%"; }
                                },
                            
                                aggregates: {
                                    c: "locale",
                                    D: "%m/%d/%y",
                                    F: "%Y-%m-%d",
                                    h: "%b",
                                    n: "\n",
                                    r: "%I:%M:%S %p",
                                    R: "%H:%M",
                                    t: "\t",
                                    T: "%H:%M:%S",
                                    x: "locale",
                                    X: "locale"
                                    //"+": "%a %b %e %T %Z %Y"
                                },
                            
                                 /**
                                 * Takes a native JavaScript Date and formats it as a string for display to user.
                                 *
                                 * @for Date
                                 * @method format
                                 * @param oDate {Date} Date.
                                 * @param oConfig {Object} (Optional) Object literal of configuration values:
                                 *  <dl>
                                 *   <dt>format {HTML} (Optional)</dt>
                                 *   <dd>
                                 *   <p>
                                 *   Any strftime string is supported, such as "%I:%M:%S %p". strftime has several format specifiers defined by the Open group at
                                 *   <a href="http://www.opengroup.org/onlinepubs/007908799/xsh/strftime.html">http://www.opengroup.org/onlinepubs/007908799/xsh/strftime.html</a>
                                 *   PHP added a few of its own, defined at <a href="http://www.php.net/strftime">http://www.php.net/strftime</a>
                                 *   </p>
                                 *   <p>
                                 *   This javascript implementation supports all the PHP specifiers and a few more.  The full list is below.
                                 *   </p>
                                 *   <p>
                                 *   If not specified, it defaults to the ISO 8601 standard date format: %Y-%m-%d.
                                 *   </p>
                                 *   <dl>
                                 *  <dt>%a</dt> <dd>abbreviated weekday name according to the current locale</dd>
                                 *  <dt>%A</dt> <dd>full weekday name according to the current locale</dd>
                                 *  <dt>%b</dt> <dd>abbreviated month name according to the current locale</dd>
                                 *  <dt>%B</dt> <dd>full month name according to the current locale</dd>
                                 *  <dt>%c</dt> <dd>preferred date and time representation for the current locale</dd>
                                 *  <dt>%C</dt> <dd>century number (the year divided by 100 and truncated to an integer, range 00 to 99)</dd>
                                 *  <dt>%d</dt> <dd>day of the month as a decimal number (range 01 to 31)</dd>
                                 *  <dt>%D</dt> <dd>same as %m/%d/%y</dd>
                                 *  <dt>%e</dt> <dd>day of the month as a decimal number, a single digit is preceded by a space (range " 1" to "31")</dd>
                                 *  <dt>%E</dt> <dd>day of the month as a decimal number (range 1 to 31)</dd>
                                 *  <dt>%F</dt> <dd>same as %Y-%m-%d (ISO 8601 date format)</dd>
                                 *  <dt>%g</dt> <dd>like %G, but without the century</dd>
                                 *  <dt>%G</dt> <dd>The 4-digit year corresponding to the ISO week number</dd>
                                 *  <dt>%h</dt> <dd>same as %b</dd>
                                 *  <dt>%H</dt> <dd>hour as a decimal number using a 24-hour clock (range 00 to 23)</dd>
                                 *  <dt>%I</dt> <dd>hour as a decimal number using a 12-hour clock (range 01 to 12)</dd>
                                 *  <dt>%j</dt> <dd>day of the year as a decimal number (range 001 to 366)</dd>
                                 *  <dt>%k</dt> <dd>hour as a decimal number using a 24-hour clock (range 0 to 23); single digits are preceded by a blank. (See also %H.)</dd>
                                 *  <dt>%l</dt> <dd>hour as a decimal number using a 12-hour clock (range 1 to 12); single digits are preceded by a blank. (See also %I.) </dd>
                                 *  <dt>%m</dt> <dd>month as a decimal number (range 01 to 12)</dd>
                                 *  <dt>%M</dt> <dd>minute as a decimal number</dd>
                                 *  <dt>%n</dt> <dd>newline character</dd>
                                 *  <dt>%p</dt> <dd>either "AM" or "PM" according to the given time value, or the corresponding strings for the current locale</dd>
                                 *  <dt>%P</dt> <dd>like %p, but lower case</dd>
                                 *  <dt>%r</dt> <dd>time in a.m. and p.m. notation equal to %I:%M:%S %p</dd>
                                 *  <dt>%R</dt> <dd>time in 24 hour notation equal to %H:%M</dd>
                                 *  <dt>%s</dt> <dd>number of seconds since the Epoch, ie, since 1970-01-01 00:00:00 UTC</dd>
                                 *  <dt>%S</dt> <dd>second as a decimal number</dd>
                                 *  <dt>%t</dt> <dd>tab character</dd>
                                 *  <dt>%T</dt> <dd>current time, equal to %H:%M:%S</dd>
                                 *  <dt>%u</dt> <dd>weekday as a decimal number [1,7], with 1 representing Monday</dd>
                                 *  <dt>%U</dt> <dd>week number of the current year as a decimal number, starting with the
                                 *          first Sunday as the first day of the first week</dd>
                                 *  <dt>%V</dt> <dd>The ISO 8601:1988 week number of the current year as a decimal number,
                                 *          range 01 to 53, where week 1 is the first week that has at least 4 days
                                 *          in the current year, and with Monday as the first day of the week.</dd>
                                 *  <dt>%w</dt> <dd>day of the week as a decimal, Sunday being 0</dd>
                                 *  <dt>%W</dt> <dd>week number of the current year as a decimal number, starting with the
                                 *          first Monday as the first day of the first week</dd>
                                 *  <dt>%x</dt> <dd>preferred date representation for the current locale without the time</dd>
                                 *  <dt>%X</dt> <dd>preferred time representation for the current locale without the date</dd>
                                 *  <dt>%y</dt> <dd>year as a decimal number without a century (range 00 to 99)</dd>
                                 *  <dt>%Y</dt> <dd>year as a decimal number including the century</dd>
                                 *  <dt>%z</dt> <dd>numerical time zone representation</dd>
                                 *  <dt>%Z</dt> <dd>time zone name or abbreviation</dd>
                                 *  <dt>%%</dt> <dd>a literal "%" character</dd>
                                 *   </dl>
                                 *  </dd>
                                 * </dl>
                                 * @return {HTML} Formatted date for display.
                                 */
                                format : function (oDate, oConfig) {
                                    oConfig = oConfig || {};
                            
                                    if(!Y.Lang.isDate(oDate)) {
                                        Y.log("format called without a date", "WARN", "date");
                                        return Y.Lang.isValue(oDate) ? oDate : "";
                                    }
                            
                                    var format, resources, compatMode, sLocale, LOCALE;
                            
                                    format = oConfig.format || "%Y-%m-%d";
                            
                                    resources = Y.Intl.get('datatype-date-format');
                            
                                    var replace_aggs = function (m0, m1) {
                                        if (compatMode && m1 === "r") {
                                            return resources[m1];
                                        }
                                        var f = Dt.aggregates[m1];
                                        return (f === "locale" ? resources[m1] : f);
                                    };
                            
                                    var replace_formats = function (m0, m1) {
                                        var f = Dt.formats[m1];
                                        switch(Y.Lang.type(f)) {
                                            case "string":                  // string => built in date function
                                                return oDate[f]();
                                            case "function":                // function => our own function
                                                return f.call(oDate, oDate, resources);
                                            case "array":                   // built in function with padding
                                                if(Y.Lang.type(f[0]) === "string") {
                                                    return xPad(oDate[f[0]](), f[1]);
                                                } // no break; (fall through to default:)
                                            default:
                                                Y.log("unrecognised replacement type, please file a bug (format: " + oConfig.format + ")", "WARN", "date");
                                                return m1;
                                        }
                                    };
                            
                                    // First replace aggregates (run in a loop because an agg may be made up of other aggs)
                                    while(format.match(/%[cDFhnrRtTxX]/)) {
                                        format = format.replace(/%([cDFhnrRtTxX])/g, replace_aggs);
                                    }
                            
                                    // Now replace formats (do not run in a loop otherwise %%a will be replace with the value of %a)
                                    var str = format.replace(/%([aAbBCdeEgGHIjklmMpPsSuUVwWyYzZ%])/g, replace_formats);
                            
                                    replace_aggs = replace_formats = undefined;
                            
                                    return str;
                                }
                            };
                            
                            Y.mix(Y.namespace("Date"), Dt);
                            
                            
                            Y.namespace("DataType");
                            Y.DataType.Date = Y.Date;