//Скрипт подсчета таты по еврейскому календарю

//Скрипт праздников

	function makeArray() {
		this[0] = makeArray.arguments.length;
		for (i = 0; i < makeArray.arguments.length; i = i + 1)
		this[i+1] = makeArray.arguments[i];
	}
	
	var hebMonth = new makeArray('Нисана', 'Ияра', 'Сивана', 'Тамуза', 'Ава', 'Элула', 'Тишрея', 'Хешвана', 'Кислева', 'Тевета', 'Швата', 'Адара', 'Адара-алеф', 'Адара-бет');
	
	var civMonth = new makeArray('Января', 'Февраля', 'Марта', 'Апреля', 'Мая', 'Июня', 'Июля', 'Августа', 'Сентября', 'Октября', 'Ноября', 'Декабря');
	
	var weekDay = new makeArray('Sun', 'Mon', 'Tues', 'Wed', 'Thur', 'Fri', 'Shabbat');
	
	function Gauss(year) {
		var a,b,c;
		var m;
		var Mar; // "day in March" on which Pesach falls (return value)
	
		a = Math.floor((12 * year + 17) % 19);
		b = Math.floor(year % 4);
		m = 32.044093161144 + 1.5542417966212 * a + b / 4.0 - 0.0031777940220923 * year;
		if (m < 0)
			m -= 1;
		Mar = Math.floor(m);
		if (m < 0)
			m++;
		m -= Mar;
	
		c = Math.floor((Mar + 3 * year + 5 * b + 5) % 7);
		if(c == 0 && a > 11 && m >= 0.89772376543210 )
			Mar++;
		else if(c == 1 && a > 6 && m >= 0.63287037037037)
			Mar += 2;
		else if(c == 2 || c == 4 || c == 6)
			Mar++;
	
		Mar += Math.floor((year - 3760) / 100) - Math.floor((year - 3760) / 400) - 2;
		return Mar;
	}
	
	function leap(y) {
		return ((y % 400 == 0) || (y % 100 != 0 && y % 4 == 0));
	}
	
	function civMonthLength(month, year) {
		if(month == 2)
			return 28 + leap(year);
		else if(month == 4 || month == 6 || month == 9 || month == 11)
			return 30;
		else
			return 31;
	}
	
	function civ2heb(day, month, year) {
		var d = day;
		var m = month;
		var y = year;
		var hy;
		var pesach;
		var anchor;
		var adarType;
	
		m -= 2;
		if (m <= 0) { // Jan or Feb
			m += 12;
			y -= 1;
		}
	
		d += Math.floor(7 * m / 12 + 30 * (m - 1)); // day in March
		hy = y + 3760; // get Hebrew year
		pesach = Gauss(hy);
		if (d <= pesach - 15) { // before 1 Nisan
			anchor = pesach;
			d += 365;
			if(leap(y))
				d++;
			y -= 1;
			hy -= 1;
			pesach = Gauss(hy);
		}else
			anchor = Gauss(hy + 1);
	
		d -= pesach - 15;
		anchor -= pesach - 12;
		y++;
		if(leap(y))
			anchor++;
	
		for(m = 0; m < 11; m++) {
			var days;
			if(m == 7 && anchor % 30 == 2)
				days = 30; // Cheshvan
			else if(m == 8 && anchor % 30 == 0)
				days = 29; // Kislev
			else
				days = 30 - m % 2;
			if(d <= days)
				break;
			d -= days;
		}
	
		adarType = 0; // plain old Adar
		if (m == 11 && anchor >= 30) {
			if (d > 30) {
				adarType = 2; // Adar 2
				d -= 30;
			}else
				adarType = 1; // Adar 1
		}
	
		if(m >= 6) // Tishrei or after?
			hy++; // then bump up year
	
		if(m == 11) // Adar?
			m += adarType; // adjust for Adars
	
		return (d + ' ' + m + ' ' + hy);
	}
	
	function Easter(Y) {
		// based on the algorithm of Oudin
		var C = Math.floor(Y / 100);
		var N = Y - 19 * Math.floor(Y / 19);
		var K = Math.floor((C - 17) / 25);
		var I = C - Math.floor(C / 4) - Math.floor((C - K) / 3) + 19 * N + 15;
		I = I - 30*Math.floor((I / 30));
		I = I - Math.floor(I / 28) * (1 - Math.floor(I / 28) * Math.floor(29 / (I + 1)) * Math.floor((21 - N) / 11));
		var J = Y + Math.floor(Y / 4) + I + 2 - C + Math.floor(C / 4);
		J = J - 7 * Math.floor(J / 7);
		var L = I - J;
		var M = 3 + Math.floor((L + 40) / 44);
		var D = L + 28 - 31 * Math.floor(M / 4);
	
		var ret = new Object();
		ret[1] = M;
		ret[2] = D;
		return ret;
	}
	
	function DOW(day,month,year) {
		var a = Math.floor((14 - month)/12);
		var y = year - a;
		var m = month + 12*a - 2;
		var d = (day + y + Math.floor(y/4) - Math.floor(y/100) +
		Math.floor(y/400) + Math.floor((31*m)/12)) % 7;
		return d + 1;
	}
	
	function NthDOW(nth,weekday,month,year) {
		if (nth > 0)
			return (nth - 1) * 7 + 1 + (7 + weekday - DOW((nth - 1) * 7 + 1, month, year)) % 7;
		var days = civMonthLength(month, year);
		return days - (DOW(days, month, year) - weekday + 7) % 7;
	}
	
	function holidays(cday, cmonth, cyear) {
		// American civil holidays and some major religious holiday
		if (cmonth == 1 && cday == 1)
			return "New Year's Day";
		else if (cmonth == 2 && cday == 12)
			return "Lincoln's Birthday";
		else if (cmonth == 2 && cday == 14)
			return "Valentine's Day";
		else if (cmonth == 2 && cday == NthDOW(3, 2, 2, cyear))
			return "President's Day";
		else if (cmonth == 3 && cday == 17)
			return "St. Patrick's Day";
		else if (cmonth == 3 || cmonth == 4) {
			var e = Easter(cyear);
			if (cmonth == e[1] && cday == e[2])
				return "Easter";
		}else if (cmonth == 5 && cday == NthDOW(2, 1, 5, cyear))
			return "Mother's Day";
		else if (cmonth == 5 && cday == NthDOW(3, 7, 5, cyear))
			return "Armed Forces Day";
		else if (cmonth == 5 && cday == NthDOW(0, 2, 5, cyear))
			return "Memorial Day";
		else if (cmonth == 6 && cday == 14)
			return "Flag Day";
		else if (cmonth == 6 && cday == NthDOW(3, 1, 6, cyear))
			return "Father's Day";
		else if (cmonth == 7 && cday == 4)
			return "Independence Day";
		else if (cmonth == 9 && cday == NthDOW(1, 2, 9, cyear))
			return "Labor Day";
		else if (cmonth == 10 && cday == NthDOW(2, 2, 10, cyear))
			return "Columbus Day";
		else if (cmonth == 10 && cday == 31)
			return "Halloween";
		else if (cmonth == 11 && cday == 11)
			return "Veterans' Day";
		else if (cmonth == 11 && cday == NthDOW(4, 5, 11, cyear))
			return "Thanksgiving";
		else if (cmonth == 12 && cday == 25)
			return "Christmas";
		return "";
	}
	
	function moadim(cday, cmonth, cyear, hday, hmonth, dow) {
		if(hmonth == 6) {
			if(hday == 1 || hday == 2)
				return "Rosh Hashana"
			else if(hday == 3 && dow != 7)
				return "Fast of Gedalia";
			else if(hday == 4 && dow == 1)
				return "Fast of Gedalia";
			else if(hday == 10)
				return "Yom Kippur"
			else if(hday >= 15 && hday <= 22)
				return "Sukkot"
			else if(hday == 23)
				return "Sukkot (d)"
		}else if(hmonth == 8) {
			if(hday >= 25)
				return "Chanukkah"
		}else if(hmonth == 9) {
			if(hday <= 2) {
				return "Chanukkah"
			}else if(hday == 3) {// Kislev can be malei or chaser
				if(cday == 1) {
					cday = 29;
					cmonth = 11;
				}else if(cday == 2) {
					cday = 30;
					cmonth = 11;
				}else
					cday -= 3;
			
				var hdate = civ2heb(cday, cmonth, cyear);
				hd = eval(hdate.substring(0, hdate.indexOf(' ')));
				
				if(hd == 29)
					return "Chanukkah"
			}else if(hday == 10)
				return "Fast of Tevet"
		}else if(hmonth == 10) {
			if(hday==15)
				return "Tu b'Shvat"
		}else if(hmonth == 11 || hmonth == 13) {
			if(hday == 11 && dow == 5)
				return "Taanit Esther"
		else if(hday == 13 && dow != 7)
			return "Taanit Esther"
		else if(hday == 14)
			return "Purim"
		else if(hday == 15)
			return "Shushan Purim"
		}else if(hmonth == 0) {
			if(hday == 12 && dow == 5)
				return "Taanit Bechorot"
			else if(hday == 14 && dow != 7)
				return "Taanit Bechorot"
			else if(hday >= 15 && hday <= 21)
				return "Pesach"
			else if(hday == 22)
				return "Pesach (d)"
		}else if(hmonth == 1) {
			if(hday == 3 && dow == 5)
				return "Yom Ha'Atzmaut"
			else if(hday == 4 && dow == 5)
				return "Yom Ha'Atzmaut"
			else if(hday == 5 && dow != 6 && dow != 7)
				return "Yom Ha'Atzmaut"
		
			if(hday == 14)
				return "Pesah sheni"
			else if(hday == 18)
				return "Lag B'Omer"
			if(hday == 28)
				return "Yom Yerushalayim"
		}else if(hmonth == 2) {
			if(hday == 6)
				return "Shavuot"
			else if(hday == 7)
				return "Shavuot (d)"
		}else if(hmonth == 3) {
			if(hday == 17 && dow != 7)
				return "Fast of Tammuz"
			if(hday == 18 && dow == 1)
				return "Fast of Tammuz"
		}else if(hmonth == 4) {
			if(hday == 9 && dow != 7)
				return "Tisha B'Av"
			if(hday == 10 && dow == 1)
				return "Tisha B'Av"
			if(hday == 15)
				return "Tu B'Av"
		}
		return "";
	}