var hebMonth = new Array(
	'Nisan', 'Iyyar', 'Sivan', 'Tammuz', 'Av', 'Elul',
	'Tishrei', 'Cheshvan', 'Kislev', 'Tevet', 'Shevat',
	'Adar', 'Adar I', 'Adar II');

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 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);
}
