var slAirportNames = [
	['AMS', 'Amsterdam (AMS)'],
	['ATH', 'Atene (ATH)'],
	['BCN', 'Barcelona (BCN)'],
	['BHX', 'Birmingham (BHX)'],
	['BRU', 'Bruselj (BRU)'],
	['OTP', 'Bukarešta (OTP)'],
	['DUB', 'Dublin (DUB)'],
	['VIE', 'Dunaj (VIE)'],
	['FRA', 'Frankfurt (FRA)'],
	['IST', 'Istanbul (IST)'],
	['KBP', 'Kijev (KBP)'],
	['CPH', 'Kobenhaven (CPH)'],
	['LJU', 'Ljubljana (LJU)'],
	['LGW', 'London (LGW)'],
	['MAN', 'Manchester (MAN)'],
	['SVO', 'Moskva (SVO)'],
	['MUC', 'München (MUC)'],
	['OHD', 'Ohrid (OHD)'],
	['OSL', 'Oslo (OSL)'],
	['CDG', 'Pariz (CDG)'],
	['TGD', 'Podgorica (TGD)'],
	['PRN', 'Priština (PRN)'],
	['SJJ', 'Sarajevo (SJJ)'],
	['SKP', 'Skopje (SKP)'],
	['ARN', 'Stockholm (ARN)'],
	['TIA', 'Tirana (TIA)'],
	['WAW', 'Varšava (WAW)'],
	['ZRH', 'Zürich (ZRH)']
];
var enAirportNames = [
	['AMS', 'Amsterdam (AMS)'],
	['ATH', 'Athens (ATH)'],
	['BCN', 'Barcelona (BCN)'],
	['BHX', 'Birmingham (BHX)'],
	['BRU', 'Brussels (BRU)'],
	['OTP', 'Bucharest (OTP)'],
	['CPH', 'Copenhagen (CPH)'],
	['DUB', 'Dublin (DUB)'],
	['FRA', 'Frankfurt (FRA)'],
	['IST', 'Istanbul (IST)'],
	['KBP', 'Kiev (KBP)'],
	['LJU', 'Ljubljana (LJU)'],
	['LGW', 'London (LGW)'],
	['MAN', 'Manchester (MAN)'],
	['SVO', 'Moscow (SVO)'],
	['MUC', 'Munich (MUC)'],
	['OHD', 'Ohrid (OHD)'],
	['OSL', 'Oslo (OSL)'],
	['CDG', 'Paris (CDG)'],
	['TGD', 'Podgorica (TGD)'],
	['PRN', 'Pristina (PRN)'],
	['SJJ', 'Sarajevo (SJJ)'],
	['SKP', 'Skopje (SKP)'],
	['ARN', 'Stockholm (ARN)'],
	['TIA', 'Tirana (TIA)'],
	['VIE', 'Vienna (VIE)'],
	['WAW', 'Warsaw (WAW)'],
	['ZRH', 'Zurich (ZRH)']
];

var airportRelations = [
	['AMS', ['IST', 'KBP', 'LJU', 'TGD', 'PRN', 'SJJ', 'SKP', 'TIA']],
	['ATH', ['BRU', 'LJU', 'ARN']],
	['BCN', ['BRU', 'VIE', 'LJU', 'MUC', 'PRN', 'SJJ', 'SKP', 'TIA']],
	['BHX', ['LJU', 'SKP']],
	['BRU', ['ATH', 'BCN', 'IST', 'KBP', 'LJU', 'OHD', 'OTP', 'TGD', 'PRN', 'SJJ', 'SKP', 'TIA']],
	['OTP', ['AMS', 'BRU', 'CPH', 'FRA', 'LJU', 'LGW', 'MUC', 'CDG', 'OSL', 'ARN', 'VIE', 'ZRH']],
	['DUB', ['LJU']],
	['VIE', ['BCN', 'FRA', 'IST', 'KBP', 'LJU', 'OHD', 'TGD', 'PRN', 'SJJ', 'SKP', 'TIA']],
	['FRA', ['VIE', 'IST', 'KBP', 'LJU', 'OHD', 'OSL', 'TGD', 'PRN', 'SJJ', 'SKP', 'TIA']],
	['IST', ['AMS', 'BRU', 'VIE', 'FRA', 'KBP', 'CPH', 'LJU', 'SVO', 'MUC', 'CDG', 'WAW', 'ZRH']],
	['KBP', ['AMS', 'BRU', 'VIE', 'FRA', 'IST', 'LJU', 'MUC', 'OHD', 'CDG']],
	['CPH', ['IST', 'LJU', 'OHD', 'PRN', 'SJJ', 'SKP', 'TIA']],
	['LJU', ['AMS', 'ATH', 'BCN', 'BHX', 'BRU', 'OTP', 'DUB', 'VIE', 'FRA', 'IST', 'KBP', 'CPH', 'LGW', 'MAN', 'SVO', 'MUC', 'OHD', 'OSL', 'CDG', 'TGD', 'PRN', 'SJJ', 'SKP', 'ARN', 'TIA', 'WAW', 'ZRH']],
	['LGW', ['LJU', 'PRN', 'SJJ', 'SKP', 'TIA']],
	['MAN', ['LJU']],
	['SVO', ['IST', 'LJU', 'MUC', 'OHD', 'SKP']],
	['MUC', ['BCN', 'IST', 'KBP', 'LJU', 'SVO', 'OHD', 'TGD', 'PRN', 'SJJ', 'SKP', 'TIA']],
	['OHD', ['BRU', 'VIE', 'FRA', 'KBP', 'CPH', 'LJU', 'SVO', 'MUC', 'CDG', 'WAW', 'ZRH']],
	['OSL', ['FRA', 'LJU', 'PRN', 'SJJ', 'SKP', 'TIA']],
	['CDG', ['IST', 'KBP', 'LJU', 'OHD', 'TGD', 'PRN', 'SJJ', 'SKP', 'TIA']],
	['TGD', ['AMS', 'BRU', 'VIE', 'FRA', 'LJU', 'MUC', 'CDG', 'ZRH']],
	['PRN', ['AMS', 'BCN', 'BRU', 'VIE', 'FRA', 'CPH', 'LJU', 'LGW', 'MUC', 'OSL', 'CDG', 'ARN', 'ZRH']],
	['SJJ', ['AMS', 'BCN', 'BRU', 'VIE', 'FRA', 'CPH', 'LJU', 'LGW', 'MUC', 'OSL', 'CDG', 'ARN', 'WAW', 'ZRH']],
	['SKP', ['AMS', 'BCN', 'BHX', 'BRU', 'VIE', 'FRA', 'CPH', 'LJU', 'LGW', 'SVO', 'MUC', 'ARN', 'OSL', 'CDG', 'WAW', 'ZRH']],
	['ARN', ['LJU', 'ATH', 'PRN', 'SJJ', 'SKP', 'TIA']],
	['TIA', ['AMS', 'BCN', 'BRU', 'VIE', 'FRA', 'CPH', 'LJU', 'LGW', 'MUC', 'OSL', 'CDG', 'ARN', 'ZRH']],
	['WAW', ['IST', 'LJU', 'OHD', 'SJJ', 'SKP']],
	['ZRH', ['IST', 'LJU', 'OHD', 'TGD', 'PRN', 'SJJ', 'SKP', 'TIA']]
];

var slDayNames = ['nedelja', 'ponedeljek', 'torek', 'sreda', 'četrtek', 'petek', 'sobota'];
var enDayNames = ['sunday', 'monday', 'tuesday', 'wednesday', 'thursday', 'friday', 'saturday'];

// boky: kaj pa veliki ponedeljek?
// glej {@link com.parsek.time.TimeUtils} v parsek-util, predvsem metode
// isWorkingDay
// isHoliday
// getNextWorkingDay

var holidays = [
	[0, 1],
	[0, 2],
	[1, 8],
	[3, 27],
	[4, 1],
	[4, 2],
	[5, 25],
	[7, 15],
	[9, 31],
	[10, 1],
	[11, 25],
	[11, 26]
	];

displayAirports = function(elmParam, prefix) {
	var elm = elmParam;
	if (elm == null) {
		elm = document.getElementById(prefix + 'DeparturesB');
		if (elm != null) {
			for (var m = 0, n = nullAirportNames.length; m < n; m++) {
				var airport = nullAirportNames[m][0];
				var option = document.createElement('option');
				option.value = airport;
				option.innerHTML = nullAirportNames[m][1];
				elm.appendChild(option);
        }
			}
		}
	var rets = document.getElementById(prefix + 'Returns');
	if (rets != null) {
		var airports = rets.getElementsByTagName('option');
		for (var i = airports.length - 1, j = 0; i > j; i--){
			rets.removeChild(airports[i]);
		}
		var value = elm.value;
		for (var i = 0, j = airportRelations.length; i < j; i++) {
			var relation = airportRelations[i];
			if (relation[0] == value) {
				var relations = relation[1].toString();
				for (var m = 0, n = nullAirportNames.length; m < n; m++) {
					var airport = nullAirportNames[m][0];
					if (relations.indexOf(airport) > -1) {
						var option = document.createElement('option');
						option.value = airport;
						option.innerHTML = nullAirportNames[m][1];
						rets.appendChild(option);
					}
				}
				break;
			}
		}
	}
};

moveDate = function(date) {
	date.setDate(date.getDate() + 1);
	date.setHours(10);
	date.setMinutes(0);
	date.setSeconds(0);
	date.setMilliseconds(0);
	return date;
};

isHoliday = function(date) {
	var month = date.getMonth();
	var day = date.getDate();
	for (var i = 0, j = holidays.length; i < j; i++) {
		var holiday = holidays[i];
		var month1 = holiday[0];
		var day1 = holiday[1];
		if (month == month1 && day == day1) return true;
	}
	return false;
};

isWeekend = function(date) {
	var weekDay = date.getDay();
	var hours = date.getHours();
	return (weekDay == 0 || weekDay == 6 || (weekDay == 5 && hours >= 18));
};

setDate = function() {
	var date = new Date();
	while (isWeekend(date) || isHoliday(date)) date = moveDate(date);
	return date;
};

selectMonth = function(date, prefix, num) {
	var selectOption = '' + date.getFullYear() + (date.getMonth() < 10 ? '0' + date.getMonth() : date.getMonth());
	var months = document.getElementById(prefix + 'Month' + num).childNodes;
	for (var k = 0, l = months.length; k < l; k++) {
		var option = months[k];
		if (option.selected) option.selected = false;
		if (option.value == selectOption) option.selected = 'selected';
	}
};

displayDays = function(num, prefix, addSevenDays) {
	var monthElm = document.getElementById(prefix + 'Month' + num);
	if (monthElm != null) {
		var date = setDate();
		var thisMonth = '' + date.getMonth();
		var thisYear = '' + date.getFullYear();
		var today = date.getDate();
		var month = monthElm.value;
		var year = month.substring(0, 4);
		month = month.substring(4, month.length);
		if (month.startsWith('0')) month = month.substring(1, month.length);
		date.setDate(1);
		date.setFullYear(year);
		date.setMonth(month);
		var day = document.getElementById(prefix + 'Day' + num);
		var days = day.getElementsByTagName('option');
		var selectedDay = day.value;
		if (selectedDay == 0) selectedDay = today;
		if (addSevenDays) {
			var sd = Number(selectedDay);
			sd += 7;
			date.setDate(sd);
			if (date.getMonth() > Number(thisMonth) || date.getFullYear() > Number(thisYear)) {
				selectMonth(date, prefix, num);
				month = date.getMonth();
				today = date.getDate();
			}
			selectedDay = '' + date.getDate();
			date.setDate(1);
		}
		for (var i = days.length - 1, j = 0; i >= j; i--){
			day.removeChild(days[i]);
		}
		var filter = month == thisMonth && year == thisYear;
		while (month == date.getMonth()) {
			if ((filter && date.getDate() >= today) || !filter) {
				var option = document.createElement('option');
				option.value = date.getDate();
				option.innerHTML = date.getDate();
				if (date.getDate() == selectedDay) option.selected = 'selected';
				day.appendChild(option);
			}
			date.setDate(date.getDate() + 1);
		}
		displayDayName(num, prefix);
	}
};

displayDayName = function(num, prefix) {
	var date = new Date();
	var month = document.getElementById(prefix + 'Month' + num).value;
	var year = month.substring(0, 4);
	month = month.substring(4, month.length);
	if (month.startsWith('0')) month = month.substring(1, month.length);
	date.setDate(1);
	date.setFullYear(year);
	date.setMonth(month);
	var day = document.getElementById(prefix + 'Day' + num).value;
	date.setDate(day);
	document.getElementById(prefix + 'DayName' + num).innerHTML = nullDayNames[date.getDay()];
};

var returnFlight = true;

toggleReturnDates = function(prefix) {
	var ret = document.getElementById(prefix + 'TripTypeR');
	var one = document.getElementById(prefix + 'TripTypeO');
	var elm = document.getElementById(prefix + 'Returndates');
	if (ret != null && ret.checked) {
		elm.style.display = 'block';
		returnFlight = true;
	} else if (one != null && one.checked) {
		elm.style.display = 'none';
		returnFlight = false;
	}
};

toggleFareType = function(elm, prefix) {
	var schedule = document.getElementById('fareType');
	var price = document.getElementById('fpFareType');
	var searchPage = document.getElementById('searchPage');
	var fromPage = document.getElementById('fromPage');
	if (elm.value == 'price') {
		price.style.display = 'inline';
		schedule.style.display = 'none';
		searchPage.value = 'FP';
		fromPage.value = 'ADVS';
	} else if (elm.value == 'schedule') {
		price.style.display = 'none';
		schedule.style.display = 'inline';
		searchPage.value = 'SD';
		fromPage.value = 'ADVSSD';
	}
};

togglePassengerInfo = function() {
	var obj = document.getElementById('tooltip');
	if (obj != null) {
		if (obj.style.display == null || obj.style.display == '' || obj.style.display == 'none')
			obj.style.display = 'block';
		else
			obj.style.display = 'none';
	}
};

var errorID = '';
var lastErrorID = '';

checkAirports = function(prefix) {
	var depValue = document.getElementById(prefix + 'DeparturesB').value;
	var retValue = document.getElementById(prefix + 'Returns').value;
	if (depValue == '' || retValue == '') {
		errorID = 'AirportsError'
		return false;
	}
	return true;
};

getDateForCheckDates = function(prefix, num, fieldPrefix) {
	var month = document.getElementById(prefix + 'Month' + num).value;
	var year = month.substring(0, 4);
	month = month.substring(4, month.length);
	if (month.startsWith('0')) month = month.substring(1, month.length);
	var day = document.getElementById(prefix + 'Day' + num).value;
	var hours = document.getElementById(prefix + 'Hours' + num).value;
	if (hours != 'ANY') hours = hours.substring(0, 2);
	var date = new Date();
	date.setDate(1);
	date.setFullYear(year);
	date.setMonth(month);
	date.setDate(day);
	if (hours != 'ANY') {
		date.setHours(hours);
		date.setMinutes(0);
		date.setSeconds(0);
		date.setMilliseconds(0);
	} else {
		date.setHours(23);
		date.setMinutes(59);
		date.setSeconds(59);
		date.setMilliseconds(999);
	}
	if (prefix == 'timetable') {
		if (day.length == 1) day = '0' + day;
		var m = (new Number(month) + 1) + '';
		if (m.length == 1) m = '0' + m;
		var h = 'ANY' == hours ? '0000' : hours + '00';
		document.getElementById(fieldPrefix + '_DATE').value = year + m + day + h;
		document.getElementById(fieldPrefix + '_Month').value = year + m;
		document.getElementById(fieldPrefix + '_Day').value = day;
		document.getElementById(fieldPrefix + '_Time').value = 'ANY' == hours ? hours : hours + '00';
		if ('ANY' == hours) document.getElementById(fieldPrefix + '_ANY_TIME').value = 'TRUE';
	}
	return date;
};

checkDates = function(prefix) {
	var now = setDate();
	var date1 = getDateForCheckDates(prefix, 1, 'B');
	var date2 = getDateForCheckDates(prefix, 2, 'E');
	var ret = document.getElementById(prefix + 'TripTypeR');
	var one = document.getElementById(prefix + 'TripTypeO');
	if (date1 <= now) {
		errorID = 'DateError1'
		return false;
	} else if (date1 >= date2 && (returnFlight && ret.checked)) {
		errorID = 'DateError2'
		return false;
	}
	return true;
};

checkPersons = function(prefix) {
	var adults = new Number(document.getElementById(prefix + 'Adults').value);
	var children = new Number(document.getElementById(prefix + 'Children').value);
	var infants = new Number(document.getElementById(prefix + 'Infants').value);
	if (adults < 1 && children > 0) {
		errorID = 'ChildrenError';
		return false;
	} else if (adults < 1 && infants > 0) {
		errorID = 'InfantsError1';
		return false;
	} else if (adults < infants) {
		errorID = 'InfantsError2';
		return false;
	} else if (adults < 1) {
		errorID = 'AdultsError';
		return false;
	} else if (adults + children > 9) {
		errorID = 'PersonsError';
		return false;
	}
	return true;
};

bookingStartSubmit = function(prefix) {
	lastErrorID = errorID;
	var check = false;
	var form = document.getElementById(prefix + 'Form');
	if (prefix == 'timetable') {
		check = checkAirports(prefix) && checkDates(prefix);
	} else {
		check = checkAirports(prefix) && checkDates(prefix) && checkPersons(prefix);
	}
	if (check) {
		if (lastErrorID != '') {
			document.getElementById(prefix + lastErrorID).style.display = 'none';
		}
		if (form != null) {
			var searchPage = document.getElementById('searchPage');
			var action = searchPage.value == 'FP' ? 'FlexPricerAvailability' : 'AirAvailabilityforFP';
			var oldAction = form.action;
			var actionEnd = oldAction.indexOf('.action');
			var actionStart = oldAction.firstIndexOfBackwards('/', actionEnd);

			var part = oldAction.substring(0, actionStart + 1);
			if(!part.endsWith("/")) {
				part += "/";
			}

			form.action =
				part +
				action +
				oldAction.substring(actionEnd, oldAction.length);

			form.submit();
		}
	} else {
		if (lastErrorID != '') document.getElementById(prefix + lastErrorID).style.display = 'none';
		document.getElementById(prefix + errorID).style.display = 'block';
	}
};

submitForm = function(prefix) {
	lastErrorID = errorID;
	var check = false;
	var form = document.getElementById(prefix + 'Form');
	if (prefix == 'timetable') check = checkAirports(prefix) && checkDates(prefix);
	else check = checkAirports(prefix) && checkDates(prefix) && checkPersons(prefix);
	if (check) {
		if (lastErrorID != '') document.getElementById(prefix + lastErrorID).style.display = 'none';
		if (form != null) form.submit();
	} else {
		if (lastErrorID != '') document.getElementById(prefix + lastErrorID).style.display = 'none';
		document.getElementById(prefix + errorID).style.display = 'block';
	}
};

getCoord = function(e) {
	var xcoord = 0;
	var ycoord = 0;
	if (!e) {
		if (window.event) {
			//DOM
			e = window.event;
		} else {
			//TOTAL FAILURE, WE HAVE NO WAY OF REFERENCING THE EVENT
			return;
		}
	}
	if (typeof( e.pageX ) == 'number') {
		//NS 4, NS 6+, Mozilla 0.9+
		xcoord = e.pageX;
		ycoord = e.pageY;
	} else {
		if (typeof( e.clientX ) == 'number') {
			//IE, Opera, NS 6+, Mozilla 0.9+
			//except that NS 6+ and Mozilla 0.9+ did pageX ...
			xcoord = e.clientX;
			ycoord = e.clientY;
			if (!( ( window.navigator.userAgent.indexOf('Opera') + 1 ) ||
			       ( window.ScriptEngine && ScriptEngine().indexOf('InScript') + 1 ) ||
			       window.navigator.vendor == 'KDE' )) {
				if (document.body && ( document.body.scrollLeft || document.body.scrollTop )) {
					//IE 4, 5 & 6 (in non-standards compliant mode)
					xcoord += document.body.scrollLeft;
					ycoord += document.body.scrollTop;
				} else if (document.documentElement &&
				           ( document.documentElement.scrollLeft || document.documentElement.scrollTop )) {
					//IE 6 (in standards compliant mode)
					xcoord += document.documentElement.scrollLeft;
					ycoord += document.documentElement.scrollTop;
				}
			}
		} else {
			//TOTAL FAILURE, WE HAVE NO WAY OF OBTAINING THE
			//MOUSE COORDINATES
			return;
		}
	}
	var object = document.getElementById("tooltip");
	if (object != null) {
		object.style.left = xcoord + 15 + "px";
		object.style.top = ycoord + 15 + "px";
	}
};

formInit = function() {
	displayDays(1, 'booking', false);
	displayDays(2, 'booking', true);
	toggleReturnDates('booking');

	displayDays(1, 'timetable', false);
	displayDays(2, 'timetable', true);
	toggleReturnDates('timetable');

	displayAirports(null, 'booking');
	displayAirports(null, 'timetable');
};

queueEvent = function(ev, fn) {
	if (typeof(fn) != 'function') return;
	var ofn = (window['on' + ev]) ? window['on' + ev] : function() {
	};
	window['on' + ev] = function() {
		ofn();
		fn();
	}
};

queueEvent('load', formInit);

document.onmousemove = getCoord;