/adei/trunk

/*

	Date Format 1.1

	(c) 2007 Steven Levithan <stevenlevithan.com>

	MIT license

	With code by Scott Trenda (Z and o flags, and enhanced brevity)

*/

/*** dateFormat

	Accepts a date, a mask, or a date and a mask.

	Returns a formatted version of the given date.

	The date defaults to the current date/time.

	The mask defaults ``"ddd mmm d yyyy HH:MM:ss"``.

*/

var dateFormater = function () {

	var	token        = /d{1,4}|m{1,4}|yy(?:yy)?|([HhMsTt])\1?|[LloZ]|"[^"]*"|'[^']*'/g,

		timezone     = /\b(?:[PMCEA][SDP]T|(?:Pacific|Mountain|Central|Eastern|Atlantic) (?:Standard|Daylight|Prevailing) Time|(?:GMT|UTC)(?:[-+]\d{4})?)\b/g,

		timezoneClip = /[^-+\dA-Z]/g,

		pad = function (value, length) {

			value = String(value);

			length = parseInt(length) || 2;

			while (value.length < length)

				value = "0" + value;

			return value;

		};

	// Regexes and supporting functions are cached through closure

	return function (date, mask, utc) {

		// Treat the first argument as a mask if it doesn't contain any numbers

		if (

			arguments.length == 1 &&

			(typeof date == "string" || date instanceof String) &&

			!/\d/.test(date)

		) {

			mask = date;

			date = undefined;

		}

		date = date ? new Date(date) : new Date();

		if (isNaN(date))

			throw "invalid date";

		var dF = dateFormater;

		mask   = String(dF.masks[mask] || mask || dF.masks["default"]);

		if (utc) {

		    var	d = date.getUTCDate(),

			D = date.getUTCDay(),

			m = date.getUTCMonth(),

			y = date.getUTCFullYear(),

			H = date.getUTCHours(),

			M = date.getUTCMinutes(),

			s = date.getUTCSeconds(),

			L = date.getUTCMilliseconds(),

			o = 0;

		} else {

		    var	d = date.getDate(),

			D = date.getDay(),

			m = date.getMonth(),

			y = date.getFullYear(),

			H = date.getHours(),

			M = date.getMinutes(),

			s = date.getSeconds(),

			L = date.getMilliseconds(),

			o = date.getTimezoneOffset();

		}

		var	flags = {

				d:    d,

				dd:   pad(d),

				ddd:  dF.i18n.dayNames[D],

				dddd: dF.i18n.dayNames[D + 7],

				m:    m + 1,

				mm:   pad(m + 1),

				mmm:  dF.i18n.monthNames[m],

				mmmm: dF.i18n.monthNames[m + 12],

				yy:   String(y).slice(2),

				yyyy: y,

				h:    H % 12 || 12,

				hh:   pad(H % 12 || 12),

				H:    H,

				HH:   pad(H),

				M:    M,

				MM:   pad(M),

				s:    s,

				ss:   pad(s),

				l:    pad(L, 3),

				L:    pad(L > 99 ? Math.round(L / 10) : L),

				t:    H < 12 ? "a"  : "p",

				tt:   H < 12 ? "am" : "pm",

				T:    H < 12 ? "A"  : "P",

				TT:   H < 12 ? "AM" : "PM",

				Z:    utc?"GMT":(String(date).match(timezone) || [""]).pop().replace(timezoneClip, ""),

				o:    (o > 0 ? "-" : "+") + pad(Math.floor(Math.abs(o) / 60) * 100 + Math.abs(o) % 60, 4)

			};

		return mask.replace(token, function ($0) {

			return ($0 in flags) ? flags[$0] : $0.slice(1, $0.length - 1);

		});

	};

}();

// Some common format strings

dateFormater.masks = {

	"default":       "ddd mmm d yyyy HH:MM:ss",

	shortDate:       "m/d/yy",

	mediumDate:      "mmm d, yyyy",

	longDate:        "mmmm d, yyyy",

	fullDate:        "dddd, mmmm d, yyyy",

	shortTime:       "h:MM TT",

	mediumTime:      "h:MM:ss TT",

	longTime:        "h:MM:ss TT Z",

	isoDate:         "yyyy-mm-dd",

	isoTime:         "HH:MM:ss",

	isoDateTime:     "yyyy-mm-dd'T'HH:MM:ss",

	isoFullDateTime: "yyyy-mm-dd'T'HH:MM:ss.lo"

};

// Internationalization strings

dateFormater.i18n = {

	dayNames: [

		"Sun", "Mon", "Tue", "Wed", "Thr", "Fri", "Sat",

		"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"

	],

	monthNames: [

		"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec",

		"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"

	]

};

// For convenience...

Date.prototype.format = function (mask, utc) {

	return dateFormater(this, mask, utc);

}