Здравствуйте!
Помогите пожалуйста составить код для вычисления между двумя датами количество выходных (субота, воскресение).
Заранее спасибо!

ничё себе заявка)

рублей на 400 потягивает.

сам пытался?

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нашол вот функцию но не совсем то что надо!

function Calculate( endDay, startDay, holidaysData, changedHolidaysData, workdayCount ) {
	function FormatDate( d ) {
		return d.getDate( ) + '.' + ( d.getMonth( ) + 1 ) + '.' + d.getFullYear( );
	}
	function IsHoliday( date ) {
		return date.getDay( ) == 0 || date.getDay( ) == 6;
	}
	function IsYesterday( d, d1 ) {
		if ( ! d ) {
			return false;
		}
		var d2 = new Date( d1.getFullYear( ), d1.getMonth( ), d1.getDate( ) - 1 );
		return d2.getDate( ) == d.getDate( ) && d2.getMonth( ) == d.getMonth( ) && d2.getFullYear( ) == d.getFullYear( );
	}
	function IsSameDay( d1, d2 ) {
		return d1.getFullYear( ) == d2.getFullYear( ) && d1.getMonth( ) == d2.getMonth( ) && d1.getDate( ) == d2.getDate( );
	}
	function IsHolidayEx( d ) {
		var isH = IsHoliday( d );
		for ( var h = 0;
		h < changedHolidaysData.length;
		++ h ) {
			var holiday = changedHolidaysData[ h ];
			var dateCheck = String2Date( isH ? holiday.dateFrom : holiday.dateTo );
			if ( dateCheck.getMonth( ) == d.getMonth( ) && dateCheck.getDate( ) == d.getDate( ) && dateCheck.getFullYear( ) == d.getFullYear( ) ) {
				return ! isH;
			}
		}
		return isH;
	}
	var startDate = startDay.getTime( ) <= endDay.getTime( ) ? startDay : endDay;
	var endDate = startDay.getTime( ) <= endDay.getTime( ) ? endDay : startDay;
	var startyear = startDate.getFullYear( );
	var endyear = endDate.getFullYear( );
	var holidays = new Array( );
	var workdays = new Array( );
	for ( var y = startyear;
	y <= endyear;
	++ y )GetYearData( y );
	function GetYearData( year ) {
		var transfers = [ ];
		var lastHoliday = 0;
		var sequence = 0;
		for ( var m = 0;
		m < 12;
		++ m ) {
			for ( var d = 1;
			d < 32;
			++ d ) {
				var date = new Date( year, m, d );
				if ( date.getMonth( ) != m ) {
					continue;
				}
				var isH = false;
				for ( var h = 0;
				h < holidaysData.length;
				++ h ) {
					var holiday = holidaysData[ h ];
					var startDate = String2Date( holiday.startDate );
					var endDate = String2Date( holiday.endDate );
					if ( m >= startDate.getMonth( ) && d >= startDate.getDate( ) && m <= endDate.getMonth( ) && d <= endDate.getDate( ) ) {
						isH = true;
						if ( IsHolidayEx( date ) ) {
							transfers.push( date );
						}
					}
				}
				if ( ! isH && IsYesterday( lastHoliday, date ) ) {
					if ( IsHoliday( date ) ) {
						isH = true
					} else if ( transfers.length ) {
						var transferDate = transfers.shift( );
						isH = true;
					}
				}
				for ( var h = 0;
				h < changedHolidaysData.length;
				++ h ) {
					var holiday = changedHolidaysData[ h ];
					var dateTo = String2Date( holiday.dateTo );
					if ( dateTo.getMonth( ) == m && dateTo.getDate( ) == d && dateTo.getFullYear( ) == year ) {
						isH = true;
					}
				}
				if ( isH ) {
					holidays.push( date );
					lastHoliday = date;
				}
				if ( IsYesterday( lastHoliday, date ) ) {
					lastHoliday = 0;
				}
			}
		}
		for ( var h = 0;
		h < changedHolidaysData.length;
		++ h ) {
			var workday = changedHolidaysData[ h ];
			var dateFrom = String2Date( workday.dateFrom );
			if ( dateFrom.getFullYear( ) == year ) {
				workdays.push( dateFrom );
			}
		}
	}

	function IsStateHoliday( d ) {
		for ( var i in holidays ) {
			if ( IsSameDay( d, holidays[ i ] ) ) return true;
		}
		return false;
	}
	function IsTransferredWorkday( d ) {
		for ( var i in workdays ) {
			if ( IsSameDay( d, workdays[ i ] ) ) return true;
		}
		return false;
	}
	var counteddays = 0;
	var next = new Date( startDate.getFullYear( ), startDate.getMonth( ), startDate.getDate( ) );
	while ( next.getTime( ) < endDate.getTime( ) ) {
		if ( IsTransferredWorkday( next ) )counteddays ++; else if ( IsStateHoliday( next ) ); else if ( IsHolidayEx( next ) ); else counteddays ++;
		next = new Date( next.getFullYear( ), next.getMonth( ), next.getDate( ) + 1 );
	}
	workdayCount.SetValue( counteddays );
}