Date.dayNames = [ "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday",
		"Friday", "Saturday" ];
Date.abbrDayNames = [ "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" ];
Date.monthNames = [ "January", "February", "March", "April", "May", "June",
		"July", "August", "September", "October", "November", "December" ];
Date.abbrMonthNames = [ "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug",
		"Sep", "Oct", "Nov", "Dec" ];
Date.firstDayOfWeek = 0;
Date.format = "yyyy-mm-dd";
Date.fullYearStart = "20";
(function() {
	function B(C, D) {
		if (!Date.prototype[C]) {
			Date.prototype[C] = D
		}
	}
	B("isLeapYear", function() {
		var C = this.getFullYear();
		return (C % 4 == 0 && C % 100 != 0) || C % 400 == 0
	});
	B("isWeekend", function() {
		return this.getDay() == 0 || this.getDay() == 6
	});
	B("isWeekDay", function() {
		return !this.isWeekend()
	});
	B("getDaysInMonth", function() {
		return [ 31, (this.isLeapYear() ? 29 : 28), 31, 30, 31, 30, 31, 31, 30,
				31, 30, 31 ][this.getMonth()]
	});
	B("getDayName", function(C) {
		return C ? Date.abbrDayNames[this.getDay()] : Date.dayNames[this
				.getDay()]
	});
	B("getMonthName", function(C) {
		return C ? Date.abbrMonthNames[this.getMonth()] : Date.monthNames[this
				.getMonth()]
	});
	B("getDayOfYear", function() {
		var C = new Date("1/1/" + this.getFullYear());
		return Math.floor((this.getTime() - C.getTime()) / 86400000)
	});
	B("getWeekOfYear", function() {
		return Math.ceil(this.getDayOfYear() / 7)
	});
	B("setDayOfYear", function(C) {
		this.setMonth(0);
		this.setDate(C);
		return this
	});
	B("addYears", function(C) {
		this.setFullYear(this.getFullYear() + C);
		return this
	});
	B("addMonths", function(D) {
		var C = this.getDate();
		this.setMonth(this.getMonth() + D);
		if (C > this.getDate()) {
			this.addDays(-this.getDate())
		}
		return this
	});
	B("addDays", function(C) {
		this.setDate(this.getDate() + C);
		return this
	});
	B("addHours", function(C) {
		this.setHours(this.getHours() + C);
		return this
	});
	B("addMinutes", function(C) {
		this.setMinutes(this.getMinutes() + C);
		return this
	});
	B("addSeconds", function(C) {
		this.setSeconds(this.getSeconds() + C);
		return this
	});
	B("zeroTime", function() {
		this.setMilliseconds(0);
		this.setSeconds(0);
		this.setMinutes(0);
		this.setHours(0);
		return this
	});
	B("asString", function(D) {
		var C = D || Date.format;
		return C.split("yyyy").join(this.getFullYear()).split("yy").join(
				(this.getFullYear() + "").substring(2)).split("mmmm").join(
				this.getMonthName(false)).split("mmm").join(
				this.getMonthName(true)).split("mm").join(
				A(this.getMonth() + 1)).split("dd").join(A(this.getDate()))
	});
	Date.fromString = function(K) {
		var G = Date.format;
		var J = new Date("01/01/1977");
		var H = 0;
		var C = G.indexOf("mmmm");
		if (C > -1) {
			for ( var E = 0; E < Date.monthNames.length; E++) {
				var D = K.substr(C, Date.monthNames[E].length);
				if (Date.monthNames[E] == D) {
					H = Date.monthNames[E].length - 4;
					break
				}
			}
			J.setMonth(E)
		} else {
			C = G.indexOf("mmm");
			if (C > -1) {
				var D = K.substr(C, 3);
				for ( var E = 0; E < Date.abbrMonthNames.length; E++) {
					if (Date.abbrMonthNames[E] == D) {
						break
					}
				}
				J.setMonth(E)
			} else {
				J.setMonth(Number(K.substr(G.indexOf("mm"), 2)) - 1)
			}
		}
		var I = G.indexOf("yyyy");
		if (I > -1) {
			if (C < I) {
				I += H
			}
			J.setFullYear(Number(K.substr(I, 4)))
		} else {
			if (C < I) {
				I += H
			}
			J.setFullYear(Number(Date.fullYearStart
					+ K.substr(G.indexOf("yy"), 2)))
		}
		var F = G.indexOf("dd");
		if (C < F) {
			F += H
		}
		J.setDate(Number(K.substr(F, 2)));
		if (isNaN(J.getTime())) {
			return false
		}
		return J
	};
	var A = function(C) {
		var D = "0" + C;
		return D.substring(D.length - 2)
	}
})();