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/**
 * @version: 1.0
 * @author: @geoffreymcgill
 * @date: 2015-11-25
 * @copyright: Copyright (c) 2008-2015, Object.NET, Inc.
(http://object.net). All rights reserved.
 * @license: See LICENSE and
https://github.com/datejs/Datejs/blob/master/LICENSE
 * @website: http://datejs.com/
 */
 
(function () {
    var $D = Date, 
        $P = $D.prototype, 
        $C = $D.CultureInfo,
        p = function (s, l) {
            if (!l) {
                l = 2;
            }
            return ("000" + s).slice(l * -1);
        };
            
    /**
     * Resets the time of this Date object to 12:00 AM (00:00), which is
the start of the day.
     * @param {Boolean}  .clone() this date instance before clearing Time
     * @return {Date}    this
     */
    $P.clearTime = function () {
        this.setHours(0);
        this.setMinutes(0);
        this.setSeconds(0);
        this.setMilliseconds(0);
        return this;
    };

    /**
     * Resets the time of this Date object to the current time
('now').
     * @return {Date}    this
     */
    $P.setTimeToNow = function () {
        var n = new Date();
        this.setHours(n.getHours());
        this.setMinutes(n.getMinutes());
        this.setSeconds(n.getSeconds());
        this.setMilliseconds(n.getMilliseconds());
        return this;
    };

    /** 
     * Gets a date that is set to the current date. The time is set to the
start of the day (00:00 or 12:00 AM).
     * @return {Date}    The current date.
     */
    $D.today = function () {
        return new Date().clearTime();
    };

    /**
     * Compares the first date to the second date and returns an number
indication of their relative values.  
     * @param {Date}     First Date object to compare [Required].
     * @param {Date}     Second Date object to compare to [Required].
     * @return {Number}  -1 = date1 is lessthan date2. 0 = values are
equal. 1 = date1 is greaterthan date2.
     */
    $D.compare = function (date1, date2) {
        if (isNaN(date1) || isNaN(date2)) { 
            throw new Error(date1 + " - " + date2); 
        } else if (date1 instanceof Date && date2 instanceof Date)
{
            return (date1 < date2) ? -1 : (date1 > date2) ? 1 : 0;
        } else { 
            throw new TypeError(date1 + " - " + date2); 
        }
    };
    
    /**
     * Compares the first Date object to the second Date object and returns
true if they are equal.  
     * @param {Date}     First Date object to compare [Required]
     * @param {Date}     Second Date object to compare to [Required]
     * @return {Boolean} true if dates are equal. false if they are not
equal.
     */
    $D.equals = function (date1, date2) { 
        return (date1.compareTo(date2) === 0); 
    };

    /**
     * Gets the day number (0-6) if given a CultureInfo specific string
which is a valid dayName, abbreviatedDayName or shortestDayName (two char).
     * @param {String}   The name of the day (eg. "Monday,
"Mon", "tuesday", "tue", "We",
"we").
     * @return {Number}  The day number
     */
    $D.getDayNumberFromName = function (name) {
        var n = $C.dayNames, m = $C.abbreviatedDayNames, o =
$C.shortestDayNames, s = name.toLowerCase();
        for (var i = 0; i < n.length; i++) { 
            if (n[i].toLowerCase() == s || m[i].toLowerCase() == s ||
o[i].toLowerCase() == s) { 
                return i; 
            }
        }
        return -1;  
    };
    
    /**
     * Gets the month number (0-11) if given a Culture Info specific string
which is a valid monthName or abbreviatedMonthName.
     * @param {String}   The name of the month (eg. "February,
"Feb", "october", "oct").
     * @return {Number}  The day number
     */
    $D.getMonthNumberFromName = function (name) {
        var n = $C.monthNames, m = $C.abbreviatedMonthNames, s =
name.toLowerCase();
        for (var i = 0; i < n.length; i++) {
            if (n[i].toLowerCase() == s || m[i].toLowerCase() == s) { 
                return i; 
            }
        }
        return -1;
    };

    /**
     * Determines if the current date instance is within a LeapYear.
     * @param {Number}   The year.
     * @return {Boolean} true if date is within a LeapYear, otherwise
false.
     */
    $D.isLeapYear = function (year) { 
        return ((year % 4 === 0 && year % 100 !== 0) || year % 400
=== 0); 
    };

    /**
     * Gets the number of days in the month, given a year and month value.
Automatically corrects for LeapYear.
     * @param {Number}   The year.
     * @param {Number}   The month (0-11).
     * @return {Number}  The number of days in the month.
     */
    $D.getDaysInMonth = function (year, month) {
        return [31, ($D.isLeapYear(year) ? 29 : 28), 31, 30, 31, 30, 31,
31, 30, 31, 30, 31][month];
    };
 
    $D.getTimezoneAbbreviation = function (offset) {
        var z = $C.timezones, p;
        for (var i = 0; i < z.length; i++) {
            if (z[i].offset === offset) {
                return z[i].name;
            }
        }
        return null;
    };
    
    $D.getTimezoneOffset = function (name) {
        var z = $C.timezones, p;
        for (var i = 0; i < z.length; i++) {
            if (z[i].name === name.toUpperCase()) {
                return z[i].offset;
            }
        }
        return null;
    };

    /**
     * Returns a new Date object that is an exact date and time copy of the
original instance.
     * @return {Date}    A new Date instance
     */
    $P.clone = function () {
        return new Date(this.getTime()); 
    };

    /**
     * Compares this instance to a Date object and returns an number
indication of their relative values.  
     * @param {Date}     Date object to compare [Required]
     * @return {Number}  -1 = this is lessthan date. 0 = values are equal.
1 = this is greaterthan date.
     */
    $P.compareTo = function (date) {
        return Date.compare(this, date);
    };

    /**
     * Compares this instance to another Date object and returns true if
they are equal.  
     * @param {Date}     Date object to compare. If no date to compare, new
Date() [now] is used.
     * @return {Boolean} true if dates are equal. false if they are not
equal.
     */
    $P.equals = function (date) {
        return Date.equals(this, date || new Date());
    };

    /**
     * Determines if this instance is between a range of two dates or equal
to either the start or end dates.
     * @param {Date}     Start of range [Required]
     * @param {Date}     End of range [Required]
     * @return {Boolean} true is this is between or equal to the start and
end dates, else false
     */
    $P.between = function (start, end) {
        return this.getTime() >= start.getTime() &&
this.getTime() <= end.getTime();
    };

    /**
     * Determines if this date occurs after the date to compare to.
     * @param {Date}     Date object to compare. If no date to compare, new
Date() ("now") is used.
     * @return {Boolean} true if this date instance is greater than the
date to compare to (or "now"), otherwise false.
     */
    $P.isAfter = function (date) {
        return this.compareTo(date || new Date()) === 1;
    };

    /**
     * Determines if this date occurs before the date to compare to.
     * @param {Date}     Date object to compare. If no date to compare, new
Date() ("now") is used.
     * @return {Boolean} true if this date instance is less than the date
to compare to (or "now").
     */
    $P.isBefore = function (date) {
        return (this.compareTo(date || new Date()) === -1);
    };

    /**
     * Determines if the current Date instance occurs today.
     * @return {Boolean} true if this date instance is 'today',
otherwise false.
     */
    
    /**
     * Determines if the current Date instance occurs on the same Date as
the supplied 'date'. 
     * If no 'date' to compare to is provided, the current Date
instance is compared to 'today'. 
     * @param {date}     Date object to compare. If no date to compare, the
current Date ("now") is used.
     * @return {Boolean} true if this Date instance occurs on the same Day
as the supplied 'date'.
     */
    $P.isToday = $P.isSameDay = function (date) {
        return this.clone().clearTime().equals((date || new
Date()).clone().clearTime());
    };
    
    /**
     * Adds the specified number of milliseconds to this instance. 
     * @param {Number}   The number of milliseconds to add. The number can
be positive or negative [Required]
     * @return {Date}    this
     */
    $P.addMilliseconds = function (value) {
        this.setMilliseconds(this.getMilliseconds() + value * 1);
        return this;
    };

    /**
     * Adds the specified number of seconds to this instance. 
     * @param {Number}   The number of seconds to add. The number can be
positive or negative [Required]
     * @return {Date}    this
     */
    $P.addSeconds = function (value) { 
        return this.addMilliseconds(value * 1000); 
    };

    /**
     * Adds the specified number of seconds to this instance. 
     * @param {Number}   The number of seconds to add. The number can be
positive or negative [Required]
     * @return {Date}    this
     */
    $P.addMinutes = function (value) { 
        return this.addMilliseconds(value * 60000); /* 60*1000 */
    };

    /**
     * Adds the specified number of hours to this instance. 
     * @param {Number}   The number of hours to add. The number can be
positive or negative [Required]
     * @return {Date}    this
     */
    $P.addHours = function (value) { 
        return this.addMilliseconds(value * 3600000); /* 60*60*1000 */
    };

    /**
     * Adds the specified number of days to this instance. 
     * @param {Number}   The number of days to add. The number can be
positive or negative [Required]
     * @return {Date}    this
     */
    $P.addDays = function (value) {
        this.setDate(this.getDate() + value * 1);
        return this;
    };

    /**
     * Adds the specified number of weeks to this instance. 
     * @param {Number}   The number of weeks to add. The number can be
positive or negative [Required]
     * @return {Date}    this
     */
    $P.addWeeks = function (value) { 
        return this.addDays(value * 7);
    };

    /**
     * Adds the specified number of months to this instance. 
     * @param {Number}   The number of months to add. The number can be
positive or negative [Required]
     * @return {Date}    this
     */
    $P.addMonths = function (value) {
        var n = this.getDate();
        this.setDate(1);
        this.setMonth(this.getMonth() + value * 1);
        this.setDate(Math.min(n, $D.getDaysInMonth(this.getFullYear(),
this.getMonth())));
        return this;
    };

    /**
     * Adds the specified number of years to this instance. 
     * @param {Number}   The number of years to add. The number can be
positive or negative [Required]
     * @return {Date}    this
     */
    $P.addYears = function (value) {
        return this.addMonths(value * 12);
    };

    /**
     * Adds (or subtracts) to the value of the years, months, weeks, days,
hours, minutes, seconds, milliseconds of the date instance using given
configuration object. Positive and Negative values allowed.
     * Example
    <pre><code>
    Date.today().add( { days: 1, months: 1 } )
     
    new Date().add( { years: -1 } )
    </code></pre> 
     * @param {Object}   Configuration object containing attributes
(months, days, etc.)
     * @return {Date}    this
     */
    $P.add = function (config) {
        if (typeof config == "number") {
            this._orient = config;
            return this;    
        }
        
        var x = config;
        
        if (x.milliseconds) { 
            this.addMilliseconds(x.milliseconds); 
        }
        if (x.seconds) { 
            this.addSeconds(x.seconds); 
        }
        if (x.minutes) { 
            this.addMinutes(x.minutes); 
        }
        if (x.hours) { 
            this.addHours(x.hours); 
        }
        if (x.weeks) { 
            this.addWeeks(x.weeks); 
        }    
        if (x.months) { 
            this.addMonths(x.months); 
        }
        if (x.years) { 
            this.addYears(x.years); 
        }
        if (x.days) {
            this.addDays(x.days); 
        }
        return this;
    };
    
    var $y, $m, $d;
    
    /**
     * Get the week number. Week one (1) is the week which contains the
first Thursday of the year. Monday is considered the first day of the week.
     * This algorithm is a JavaScript port of the work presented by Claus
T�ndering at
http://www.tondering.dk/claus/cal/node8.html#SECTION00880000000000000000
     * .getWeek() Algorithm Copyright (c) 2008 Claus Tondering.
     * The .getWeek() function does NOT convert the date to UTC. The local
datetime is used. Please use .getISOWeek() to get the week of the UTC
converted date.
     * @return {Number}  1 to 53
     */
    $P.getWeek = function () {
        var a, b, c, d, e, f, g, n, s, w;
        
        $y = (!$y) ? this.getFullYear() : $y;
        $m = (!$m) ? this.getMonth() + 1 : $m;
        $d = (!$d) ? this.getDate() : $d;

        if ($m <= 2) {
            a = $y - 1;
            b = (a / 4 | 0) - (a / 100 | 0) + (a / 400 | 0);
            c = ((a - 1) / 4 | 0) - ((a - 1) / 100 | 0) + ((a - 1) / 400 |
0);
            s = b - c;
            e = 0;
            f = $d - 1 + (31 * ($m - 1));
        } else {
            a = $y;
            b = (a / 4 | 0) - (a / 100 | 0) + (a / 400 | 0);
            c = ((a - 1) / 4 | 0) - ((a - 1) / 100 | 0) + ((a - 1) / 400 |
0);
            s = b - c;
            e = s + 1;
            f = $d + ((153 * ($m - 3) + 2) / 5) + 58 + s;
        }
        
        g = (a + b) % 7;
        d = (f + g - e) % 7;
        n = (f + 3 - d) | 0;

        if (n < 0) {
            w = 53 - ((g - s) / 5 | 0);
        } else if (n > 364 + s) {
            w = 1;
        } else {
            w = (n / 7 | 0) + 1;
        }
        
        $y = $m = $d = null;
        
        return w;
    };
    
    /**
     * Get the ISO 8601 week number. Week one ("01") is the week
which contains the first Thursday of the year. Monday is considered the
first day of the week.
     * The .getISOWeek() function does convert the date to it's UTC
value. Please use .getWeek() to get the week of the local date.
     * @return {String}  "01" to "53"
     */
    $P.getISOWeek = function () {
        $y = this.getUTCFullYear();
        $m = this.getUTCMonth() + 1;
        $d = this.getUTCDate();
        return p(this.getWeek());
    };

    /**
     * Moves the date to Monday of the week set. Week one (1) is the week
which contains the first Thursday of the year.
     * @param {Number}   A Number (1 to 53) that represents the week of the
year.
     * @return {Date}    this
     */    
    $P.setWeek = function (n) {
        return this.moveToDayOfWeek(1).addWeeks(n - this.getWeek());
    };

    // private
    var validate = function (n, min, max, name) {
        if (typeof n == "undefined") {
            return false;
        } else if (typeof n != "number") {
            throw new TypeError(n + " is not a Number."); 
        } else if (n < min || n > max) {
            throw new RangeError(n + " is not a valid value for "
+ name + "."); 
        }
        return true;
    };

    /**
     * Validates the number is within an acceptable range for milliseconds
[0-999].
     * @param {Number}   The number to check if within range.
     * @return {Boolean} true if within range, otherwise false.
     */
    $D.validateMillisecond = function (value) {
        return validate(value, 0, 999, "millisecond");
    };

    /**
     * Validates the number is within an acceptable range for seconds
[0-59].
     * @param {Number}   The number to check if within range.
     * @return {Boolean} true if within range, otherwise false.
     */
    $D.validateSecond = function (value) {
        return validate(value, 0, 59, "second");
    };

    /**
     * Validates the number is within an acceptable range for minutes
[0-59].
     * @param {Number}   The number to check if within range.
     * @return {Boolean} true if within range, otherwise false.
     */
    $D.validateMinute = function (value) {
        return validate(value, 0, 59, "minute");
    };

    /**
     * Validates the number is within an acceptable range for hours [0-23].
     * @param {Number}   The number to check if within range.
     * @return {Boolean} true if within range, otherwise false.
     */
    $D.validateHour = function (value) {
        return validate(value, 0, 23, "hour");
    };

    /**
     * Validates the number is within an acceptable range for the days in a
month [0-MaxDaysInMonth].
     * @param {Number}   The number to check if within range.
     * @return {Boolean} true if within range, otherwise false.
     */
    $D.validateDay = function (value, year, month) {
        return validate(value, 1, $D.getDaysInMonth(year, month),
"day");
    };

    /**
     * Validates the number is within an acceptable range for months
[0-11].
     * @param {Number}   The number to check if within range.
     * @return {Boolean} true if within range, otherwise false.
     */
    $D.validateMonth = function (value) {
        return validate(value, 0, 11, "month");
    };

    /**
     * Validates the number is within an acceptable range for years.
     * @param {Number}   The number to check if within range.
     * @return {Boolean} true if within range, otherwise false.
     */
    $D.validateYear = function (value) {
        return validate(value, 0, 9999, "year");
    };

    /**
     * Set the value of year, month, day, hour, minute, second, millisecond
of date instance using given configuration object.
     * Example
    <pre><code>
    Date.today().set( { day: 20, month: 1 } )

    new Date().set( { millisecond: 0 } )
    </code></pre>
     * 
     * @param {Object}   Configuration object containing attributes (month,
day, etc.)
     * @return {Date}    this
     */
    $P.set = function (config) {
        if ($D.validateMillisecond(config.millisecond)) {
            this.addMilliseconds(config.millisecond -
this.getMilliseconds()); 
        }
        
        if ($D.validateSecond(config.second)) {
            this.addSeconds(config.second - this.getSeconds()); 
        }
        
        if ($D.validateMinute(config.minute)) {
            this.addMinutes(config.minute - this.getMinutes()); 
        }
        
        if ($D.validateHour(config.hour)) {
            this.addHours(config.hour - this.getHours()); 
        }
        
        if ($D.validateMonth(config.month)) {
            this.addMonths(config.month - this.getMonth()); 
        }

        if ($D.validateYear(config.year)) {
            this.addYears(config.year - this.getFullYear()); 
        }
        
	    /* day has to go last because you can't validate the day without
first knowing the month */
        if ($D.validateDay(config.day, this.getFullYear(),
this.getMonth())) {
            this.addDays(config.day - this.getDate()); 
        }
        
        if (config.timezone) { 
            this.setTimezone(config.timezone); 
        }
        
        if (config.timezoneOffset) { 
            this.setTimezoneOffset(config.timezoneOffset); 
        }

        if (config.week && validate(config.week, 0, 53,
"week")) {
            this.setWeek(config.week);
        }
        
        return this;   
    };

    /**
     * Moves the date to the first day of the month.
     * @return {Date}    this
     */
    $P.moveToFirstDayOfMonth = function () {
        return this.set({ day: 1 });
    };

    /**
     * Moves the date to the last day of the month.
     * @return {Date}    this
     */
    $P.moveToLastDayOfMonth = function () { 
        return this.set({ day: $D.getDaysInMonth(this.getFullYear(),
this.getMonth())});
    };

    /**
     * Moves the date to the next n'th occurrence of the dayOfWeek
starting from the beginning of the month. The number (-1) is a magic number
and will return the last occurrence of the dayOfWeek in the month.
     * @param {Number}   The dayOfWeek to move to
     * @param {Number}   The n'th occurrence to move to. Use (-1) to
return the last occurrence in the month
     * @return {Date}    this
     */
    $P.moveToNthOccurrence = function (dayOfWeek, occurrence) {
        var shift = 0;
        if (occurrence > 0) {
            shift = occurrence - 1;
        }
        else if (occurrence === -1) {
            this.moveToLastDayOfMonth();
            if (this.getDay() !== dayOfWeek) {
                this.moveToDayOfWeek(dayOfWeek, -1);
            }
            return this;
        }
        return
this.moveToFirstDayOfMonth().addDays(-1).moveToDayOfWeek(dayOfWeek,
+1).addWeeks(shift);
    };

    /**
     * Move to the next or last dayOfWeek based on the orient value.
     * @param {Number}   The dayOfWeek to move to
     * @param {Number}   Forward (+1) or Back (-1). Defaults to +1.
[Optional]
     * @return {Date}    this
     */
    $P.moveToDayOfWeek = function (dayOfWeek, orient) {
        var diff = (dayOfWeek - this.getDay() + 7 * (orient || +1)) % 7;
        return this.addDays((diff === 0) ? diff += 7 * (orient || +1) :
diff);
    };

    /**
     * Move to the next or last month based on the orient value.
     * @param {Number}   The month to move to. 0 = January, 11 = December
     * @param {Number}   Forward (+1) or Back (-1). Defaults to +1.
[Optional]
     * @return {Date}    this
     */
    $P.moveToMonth = function (month, orient) {
        var diff = (month - this.getMonth() + 12 * (orient || +1)) % 12;
        return this.addMonths((diff === 0) ? diff += 12 * (orient || +1) :
diff);
    };

    /**
     * Get the Ordinal day (numeric day number) of the year, adjusted for
leap year.
     * @return {Number} 1 through 365 (366 in leap years)
     */
    $P.getOrdinalNumber = function () {
        return Math.ceil((this.clone().clearTime() - new
Date(this.getFullYear(), 0, 1)) / 86400000) + 1;
    };

    /**
     * Get the time zone abbreviation of the current date.
     * @return {String} The abbreviated time zone name (e.g.
"EST")
     */
    $P.getTimezone = function () {
        return $D.getTimezoneAbbreviation(this.getUTCOffset());
    };

    $P.setTimezoneOffset = function (offset) {
        var here = this.getTimezoneOffset(), there = Number(offset) * -6 /
10;
        return this.addMinutes(there - here); 
    };

    $P.setTimezone = function (offset) { 
        return this.setTimezoneOffset($D.getTimezoneOffset(offset)); 
    };

    /**
     * Indicates whether Daylight Saving Time is observed in the current
time zone.
     * @return {Boolean} true|false
     */
    $P.hasDaylightSavingTime = function () { 
        return (Date.today().set({month: 0, day: 1}).getTimezoneOffset()
!== Date.today().set({month: 6, day: 1}).getTimezoneOffset());
    };
    
    /**
     * Indicates whether this Date instance is within the Daylight Saving
Time range for the current time zone.
     * @return {Boolean} true|false
     */
    $P.isDaylightSavingTime = function () {
        return Date.today().set({month: 0, day: 1}).getTimezoneOffset() !=
this.getTimezoneOffset();
    };

    /**
     * Get the offset from UTC of the current date.
     * @return {String} The 4-character offset string prefixed with + or -
(e.g. "-0500")
     */
    $P.getUTCOffset = function () {
        var n = this.getTimezoneOffset() * -10 / 6, r;
        if (n < 0) { 
            r = (n - 10000).toString(); 
            return r.charAt(0) + r.substr(2); 
        } else { 
            r = (n + 10000).toString();  
            return "+" + r.substr(1); 
        }
    };

    /**
     * Returns the number of milliseconds between this date and date.
     * @param {Date} Defaults to now
     * @return {Number} The diff in milliseconds
     */
    $P.getElapsed = function (date) {
        return (date || new Date()) - this;
    };

    if (!$P.toISOString) {
        /**
         * Converts the current date instance into a string with an ISO
8601 format. The date is converted to it's UTC value.
         * @return {String}  ISO 8601 string of date
         */
        $P.toISOString = function () {
            // From http://www.json.org/json.js. Public Domain. 
            function f(n) {
                return n < 10 ? '0' + n : n;
            }

            return '"' + this.getUTCFullYear()   +
'-' +
                f(this.getUTCMonth() + 1) + '-' +
                f(this.getUTCDate())      + 'T' +
                f(this.getUTCHours())     + ':' +
                f(this.getUTCMinutes())   + ':' +
                f(this.getUTCSeconds())   + 'Z"';
        };
    }
    
    // private
    $P._toString = $P.toString;

    /**
     * Converts the value of the current Date object to its equivalent
string representation.
     * Format Specifiers
    <pre>
    CUSTOM DATE AND TIME FORMAT STRINGS
    Format  Description                                                    
             Example
    ------ 
---------------------------------------------------------------------------
 -----------------------
     s      The seconds of the minute between 0-59.                        
             "0" to "59"
     ss     The seconds of the minute with leading zero if required.       
             "00" to "59"
     
     m      The minute of the hour between 0-59.                           
             "0"  or "59"
     mm     The minute of the hour with leading zero if required.          
             "00" or "59"
     
     h      The hour of the day between 1-12.                              
             "1"  to "12"
     hh     The hour of the day with leading zero if required.             
             "01" to "12"
     
     H      The hour of the day between 0-23.                              
             "0"  to "23"
     HH     The hour of the day with leading zero if required.             
             "00" to "23"
     
     d      The day of the month between 1 and 31.                         
             "1"  to "31"
     dd     The day of the month with leading zero if required.            
             "01" to "31"
     ddd    Abbreviated day name. $C.abbreviatedDayNames.                  
             "Mon" to "Sun" 
     dddd   The full day name. $C.dayNames.                                
             "Monday" to "Sunday"
     
     M      The month of the year between 1-12.                            
             "1" to "12"
     MM     The month of the year with leading zero if required.           
             "01" to "12"
     MMM    Abbreviated month name. $C.abbreviatedMonthNames.              
             "Jan" to "Dec"
     MMMM   The full month name. $C.monthNames.                            
             "January" to "December"

     yy     The year as a two-digit number.                                
             "99" or "08"
     yyyy   The full four digit year.                                      
             "1999" or "2008"
     
     t      Displays the first character of the A.M./P.M. designator.      
             "A" or "P"
            $C.amDesignator or $C.pmDesignator
     tt     Displays the A.M./P.M. designator.                             
             "AM" or "PM"
            $C.amDesignator or $C.pmDesignator
     
     S      The ordinal suffix ("st, "nd", "rd" or
"th") of the current day.            "st, "nd",
"rd" or "th"

|| *Format* || *Description* || *Example* ||
|| d      || The CultureInfo shortDate Format Pattern                      
              || "M/d/yyyy" ||
|| D      || The CultureInfo longDate Format Pattern                       
              || "dddd, MMMM dd, yyyy" ||
|| F      || The CultureInfo fullDateTime Format Pattern                   
              || "dddd, MMMM dd, yyyy h:mm:ss tt" ||
|| m      || The CultureInfo monthDay Format Pattern                       
              || "MMMM dd" ||
|| r      || The CultureInfo rfc1123 Format Pattern                        
              || "ddd, dd MMM yyyy HH:mm:ss GMT" ||
|| s      || The CultureInfo sortableDateTime Format Pattern               
              || "yyyy-MM-ddTHH:mm:ss" ||
|| t      || The CultureInfo shortTime Format Pattern                      
              || "h:mm tt" ||
|| T      || The CultureInfo longTime Format Pattern                       
              || "h:mm:ss tt" ||
|| u      || The CultureInfo universalSortableDateTime Format Pattern      
              || "yyyy-MM-dd HH:mm:ssZ" ||
|| y      || The CultureInfo yearMonth Format Pattern                      
              || "MMMM, yyyy" ||
     

    STANDARD DATE AND TIME FORMAT STRINGS
    Format  Description                                                    
             Example ("en-US")
    ------ 
---------------------------------------------------------------------------
 -----------------------
     d      The CultureInfo shortDate Format Pattern                       
             "M/d/yyyy"
     D      The CultureInfo longDate Format Pattern                        
             "dddd, MMMM dd, yyyy"
     F      The CultureInfo fullDateTime Format Pattern                    
             "dddd, MMMM dd, yyyy h:mm:ss tt"
     m      The CultureInfo monthDay Format Pattern                        
             "MMMM dd"
     r      The CultureInfo rfc1123 Format Pattern                         
             "ddd, dd MMM yyyy HH:mm:ss GMT"
     s      The CultureInfo sortableDateTime Format Pattern                
             "yyyy-MM-ddTHH:mm:ss"
     t      The CultureInfo shortTime Format Pattern                       
             "h:mm tt"
     T      The CultureInfo longTime Format Pattern                        
             "h:mm:ss tt"
     u      The CultureInfo universalSortableDateTime Format Pattern       
             "yyyy-MM-dd HH:mm:ssZ"
     y      The CultureInfo yearMonth Format Pattern                       
             "MMMM, yyyy"
    </pre>
     * @param {String}   A format string consisting of one or more format
spcifiers [Optional].
     * @return {String}  A string representation of the current Date
object.
     */
    $P.toString = function (format) {
        var x = this;
        
        // Standard Date and Time Format Strings. Formats pulled from
CultureInfo file and
        // may vary by culture. 
        if (format && format.length == 1) {
            var c = $C.formatPatterns;
            x.t = x.toString;
            switch (format) {
            case "d": 
                return x.t(c.shortDate);
            case "D":
                return x.t(c.longDate);
            case "F":
                return x.t(c.fullDateTime);
            case "m":
                return x.t(c.monthDay);
            case "r":
                return x.t(c.rfc1123);
            case "s":
                return x.t(c.sortableDateTime);
            case "t":
                return x.t(c.shortTime);
            case "T":
                return x.t(c.longTime);
            case "u":
                return x.t(c.universalSortableDateTime);
            case "y":
                return x.t(c.yearMonth);
            }    
        }
        
        var ord = function (n) {
                switch (n * 1) {
                case 1: 
                case 21: 
                case 31: 
                    return "st";
                case 2: 
                case 22: 
                    return "nd";
                case 3: 
                case 23: 
                    return "rd";
                default: 
                    return "th";
                }
            };
        
        return format ?
format.replace(/(\\)?(dd?d?d?|MM?M?M?|yy?y?y?|hh?|HH?|mm?|ss?|tt?|S)/g, 
        function (m) {
            if (m.charAt(0) === "\\") {
                return m.replace("\\", "");
            }
            x.h = x.getHours;
            switch (m) {
            case "hh":
                return p(x.h() < 13 ? (x.h() === 0 ? 12 : x.h()) :
(x.h() - 12));
            case "h":
                return x.h() < 13 ? (x.h() === 0 ? 12 : x.h()) : (x.h()
- 12);
            case "HH":
                return p(x.h());
            case "H":
                return x.h();
            case "mm":
                return p(x.getMinutes());
            case "m":
                return x.getMinutes();
            case "ss":
                return p(x.getSeconds());
            case "s":
                return x.getSeconds();
            case "yyyy":
                return p(x.getFullYear(), 4);
            case "yy":
                return p(x.getFullYear());
            case "dddd":
                return $C.dayNames[x.getDay()];
            case "ddd":
                return $C.abbreviatedDayNames[x.getDay()];
            case "dd":
                return p(x.getDate());
            case "d":
                return x.getDate();
            case "MMMM":
                return $C.monthNames[x.getMonth()];
            case "MMM":
                return $C.abbreviatedMonthNames[x.getMonth()];
            case "MM":
                return p((x.getMonth() + 1));
            case "M":
                return x.getMonth() + 1;
            case "t":
                return x.h() < 12 ? $C.amDesignator.substring(0, 1) :
$C.pmDesignator.substring(0, 1);
            case "tt":
                return x.h() < 12 ? $C.amDesignator : $C.pmDesignator;
            case "S":
                return ord(x.getDate());
            default: 
                return m;
            }
        }
        ) : this._toString();
    };
}());