function parse_monthyear(monthyear){
	var strs = monthyear.split('-');
	var dateObj = new Object();
	dateObj.year = strs[0];
	dateObj.month = strs[1];
	return dateObj;
}

function parse_date(dt){
	var dateNow = new Date();
	var strs = dt.split('-');
	var dateObj = new Object();
	dateObj.year = (strs.length > 0 ? parseInt(strs[0], 10) : dateNow.getFullYear());
	dateObj.month = (strs.length > 1 ? parseInt(strs[1], 10) : (dateNow.getMonth() + 1));
	dateObj.day = (strs.length > 2 ? parseInt(strs[2], 10) : dateNow.getDate());
	return dateObj;
}

function searchDateChanged(){
	calendarChanged('ddDepartDay', 'ddDepartMonth', 'dtDepart', 'ddReturnDay', 'ddReturnMonth', 'dtReturn')
}

function byPriceDateChanged(){
	calendarChanged('ddMinDay', 'ddMinMonth', 'dtMinDate', 'ddMaxDay', 'ddMaxMonth', 'dtMaxDate')
}

function calendarChanged(depDayId, depMonthId, depDateId, retDayId, retMonthId, retDateId){
	var depDateObj = parse_date(GetItemById(depDateId).value);
	var retDateObj = parse_date(GetItemById(retDateId).value);
	var depDate = new Date(depDateObj.year, depDateObj.month - 1, depDateObj.day);
	var retDate = new Date(retDateObj.year, retDateObj.month - 1, retDateObj.day);

	var today = new Date();
	if(depDate < today){
		depDate = today;
		GetItemById(depDayId).value = depDate.getDate();
		GetItemById(depMonthId).value = depDate.getFullYear() + '-' + (depDate.getMonth() + 1);
		GetItemById(depDateId).value = depDate.getFullYear() + '-' + (depDate.getMonth() + 1) + '-' + depDate.getDate();
	}

	if(retDate < depDate){
		retDate = depDate;
		GetItemById(retDayId).value = retDate.getDate();
		GetItemById(retMonthId).value = retDate.getFullYear() + '-' + (retDate.getMonth() + 1);
		GetItemById(retDateId).value = retDate.getFullYear() + '-' + (retDate.getMonth() + 1) + '-' + retDate.getDate();
	}
}

function dateDropdownChanged(depDayId, depMonthId, depDateId, retDayId, retMonthId, retDateId){
	var depDay = GetItemById(depDayId).value;
	var depYM = GetItemById(depMonthId).value
	var depMonthYear = new parse_monthyear(depYM);
	var depDate = new Date(depMonthYear.year, depMonthYear.month - 1, depDay);
	GetItemById(depDateId).value = depDate.getFullYear() + '-' + (depDate.getMonth() + 1) + '-' + depDate.getDate();

	var retDay = GetItemById(retDayId).value;
	var retYM = GetItemById(retMonthId).value
	var retMonthYear = new parse_monthyear(retYM);
	var retDate = new Date(retMonthYear.year, retMonthYear.month - 1, retDay);
	GetItemById(retDateId).value = retDate.getFullYear() + '-' + (retDate.getMonth() + 1) + '-' + retDate.getDate();

	var today = new Date();
	if(depDate < today){
		depDate = today;
	}
	GetItemById(depDayId).value = depDate.getDate();
	GetItemById(depMonthId).value = depDate.getFullYear() + '-' + (depDate.getMonth() + 1);
	GetItemById(depDateId).value = depDate.getFullYear() + '-' + (depDate.getMonth() + 1) + '-' + depDate.getDate();

	if(retDate < depDate){
		retDate = depDate;
	}
	GetItemById(retDayId).value = retDate.getDate();
	GetItemById(retMonthId).value = retDate.getFullYear() + '-' + (retDate.getMonth() + 1);
	GetItemById(retDateId).value = retDate.getFullYear() + '-' + (retDate.getMonth() + 1) + '-' + retDate.getDate();
}

// FORM VALIDATION
function validateForm(){

   
	if(abortSuggest){ abortSuggest(); }

	var errAptDep = GetItemById('errAptDep');
	var errAptDest = GetItemById('errAptDest');
	var errDateReturn = GetItemById('errDateReturn');

	var depField = GetItemById('tbAptDep');
	var destField = GetItemById('tbAptDest');
	var depIATAField = GetItemById('tbDepIata');
	var destIATAField = GetItemById('tbDestIata');

	var chkFlightField = GetItemById('chkFlight');
	var chkTrainField = GetItemById('chkTrain');
	var chkBusField = GetItemById('chkBus');
	var chkFerryField = GetItemById('chkFerry');
	
	var chkBusinessClassField = GetItemById('cbBusinessClass');

	var isError = false;

	if(trim(depField.value) == ''){
		errAptDep.innerHTML = '<font color=red>X</font>';
		isError = true;
		FocusItem(depField);
		alert(TXT_NO_DEP_ERROR);
	}
	else{ errAptDep.innerHTML = ''; }

	if(trim(destField.value) == ''){
		errAptDest.innerHTML= '<font color=red>X</font>';
		isError = true;
		FocusItem(destField);
		alert(TXT_NO_DEST_ERROR);
	}
	else{ errAptDest.innerHTML = ''; }

	if( (depIATAField.value != '' && depIATAField.value == destIATAField.value) || 
		trim(destField.value).toLowerCase() == trim(depField.value).toLowerCase()){
		errAptDest.innerHTML= '<font color=red>X</font>';
		isError = true;
		FocusItem(destField);
		alert(TXT_SAME_DEP_DEST_ERROR);
	}
	else if(!isError){ errAptDest.innerHTML = ''; }

	var depDateElems = GetItemById('dtDepart').value.split('-');
	var retDateElems = GetItemById('dtReturn').value.split('-');
	var blnOneWay = GetItemById('optOneWay').checked;

	try{
		var dtDepart = new Date(depDateElems[0], depDateElems[1], depDateElems[2]);
		var dtReturn = new Date(retDateElems[0], retDateElems[1], retDateElems[2]);
		if(!blnOneWay && dtDepart > dtReturn){
			errDateReturn.innerHTML = '<font color=red>X</font>';
			isError = true;
		}
		else{ errDateReturn.innerHTML = ''; }
	}
	catch(e){
		errDateReturn.innerHTML = '<font color=red>X</font>';
		isError = true;
	}

	if(chkFlightField && chkTrainField && chkBusField && chkFerryField){
		var hasTransport = chkFlightField.checked || chkTrainField.checked || chkBusField.checked || chkFerryField.checked;
		if(!hasTransport){
			isError = true;
			alert(TXT_NO_TRANSPORT);
		}
	}

	var ddInfants = GetItemById('ddInfants');
	var ddAdults = GetItemById('ddAdults');
	if(ddInfants.value > ddAdults.value){				
		isError = true;
		alert(TXT_INVALID_NO_INFANTS);			
		ddInfants.focus();
	}

	if(isError){ return false; }

	var depIATA = GetItemById('tbDepIata').value;
	var destIATA = GetItemById('tbDestIata').value;

	var URL = FLIGHTS_FOLDER + (depIATA.length == 0 || destIATA.length == 0 ? 'preflysearch.aspx' : 'flysearch.aspx');
	URL += '?depcity=' + encodeURIComponent(GetItemById('tbAptDep').value);
	URL += '&depIATA=' + depIATA;
	URL += '&destIATA=' + destIATA;
	URL += '&destcity=' + encodeURIComponent(GetItemById('tbAptDest').value);
	URL += '&depart=' + GetItemById('dtDepart').value;
	URL += '&return=' + (GetItemById('optOneWay').checked ? '' : GetItemById('dtReturn').value);
	URL += '&adults=' + GetItemById('ddAdults').value;
	URL += '&infants=' + GetItemById('ddInfants').value;
	URL += '&children=' + GetItemById('ddChildren').value;
	URL += '&currency=' + GetItemById('ddCurrency').value;
	URL += '&flway=' + (GetItemById('optOneWay').checked ? 'True' : 'False');
	URL += '&flight=' + (chkFlightField ? chkFlightField.checked : 'true');

	if(chkTrainField && chkTrainField.checked)
		URL += '&train=true';

	if(chkBusField && chkBusField.checked)
		URL += '&bus=true';
		
	if(chkFerryField && chkFerryField.checked)
		URL += '&ferry=true';
		
	if(chkBusinessClassField && chkBusinessClassField.checked)
	{
		URL += '&BusinessClass=true';		
	}
	
    var lang = '';
    try{ lang = LANG_CODE; }catch(e){}
	URL += '&lang=' + lang;
	
	// Mashup Extra redirects:
	MashupRedirects();
	

	window.location.href = URL;
	return false;
}

function MashupRedirects(){
    var checkboxes = window.document.forms[0].cblExtraDeepLinks;
	if(checkboxes == null){ return; }
	for(var iCheckBox=0; iCheckBox < checkboxes.length; iCheckBox++){
		if(checkboxes[iCheckBox].checked){	
		    // ACE #399
		    var departure = GetItemById('tbDepIata').value;
		    if(departure == ""){
		        departure = GetItemById('tbAptDep').value;
		    }

		    var destination = GetItemById('tbDestIata').value;
		    if(destination == ""){
		        destination = GetItemById('tbAptDest').value;
		    }
		    var path = ROOT_FOLDER + "redirect.aspx";
		    if(typeof REDIRECT_PATH != 'undefined'){ path = REDIRECT_PATH; }
			var URL = path;
			URL += "?opid=" + checkboxes[iCheckBox].value;
			URL += "&url=";
			URL += "&DepartAirport=" + encodeURIComponent(departure);
			URL += "&DestinationAirport=" + encodeURIComponent(destination);
			URL += "&Adults=" +  GetItemById('ddAdults').value;
			URL += "&Children=" +  GetItemById('ddChildren').value;
			URL += "&Infants=" +  GetItemById('ddInfants').value;
			URL += "&DepartureDate=" +  GetItemById('dtDepart').value;
			URL += "&ReturnDate=" + (GetItemById('optOneWay').checked ? '' : GetItemById('dtReturn').value);
			
			// A Popup blocker may stop this.
			var popupType = "scrollbars,location,resizable,status,toolbar,menubar,width=" + screen.width / 2 + ",height=" + screen.height / 2;
			var winPopup = window.open(URL,"_blank" + iCheckBox,popupType);
			if(winPopup != null){
		        // Pop-under
		        winPopup.blur();
		    }
		}
	}
}

// FORM VALIDATION
function validateDirForm(){
	var errAptDep = GetItemById('errAptDep2');
	var errAptDest = GetItemById('errAptDest2');

	var depField = GetItemById('tbAptDep2');
	var destField = GetItemById('tbAptDest2');

	var depIATAField = GetItemById('tbDepIata2');
	var destIATAField = GetItemById('tbDestIata2');
	var currency = GetItemById('ddCurrency2');

	var isError = false;

	if(trim(depField.value) == ''){
		errAptDep.innerHTML = '<font color=red>X</font>';
		isError = true;
		FocusItem(depField);
		alert(TXT_NO_DEP_ERROR);
	}
	else{ errAptDep.innerHTML = ''; }

	if(trim(destField.value) == ''){
		errAptDest.innerHTML= '<font color=red>X</font>';
		isError = true;
		FocusItem(destField);
		alert(TXT_NO_DEST_ERROR);
	}
	else{ errAptDest.innerHTML = ''; }
    
    
	if(	(depIATAField.value != '' && depIATAField.value == destIATAField.value) || 
		trim(destField.value).toLowerCase() == trim(depField.value).toLowerCase()){
		errAptDest.innerHTML= '<font color=red>X</font>';
		isError = true;
		FocusItem(destField);
		alert(TXT_SAME_DEP_DEST_ERROR);
	}
	else if(!isError){ errAptDest.innerHTML = ''; }

	var monthField = GetItemById('ddDirectoryMonth');
	var blnOneWay = GetItemById('optOneWay2').checked;

	if(isError){ return false; }

	var URL;

	if(depIATAField.value.length == 3 && destIATAField.value.length == 3)
	{
		var depCity = depField.value.replace(TXT_ALL_AIRPORTS,'');
		depCity = trim(depCity.replace(',',' ').replace('  ',' '));
		var destCity = destField.value.replace(TXT_ALL_AIRPORTS,'');
		destCity = trim(destCity.replace(',',' ').replace('  ',' '));
		var regex = /\s+/g;
		var fileName = TXT_RESULTS_NAME;
		fileName = fileName.replace('{0}', depCity);
		fileName = fileName.replace('{1}', destCity);
		fileName = fileName.replace(regex, '-');

		URL = FLIGHTS_FOLDER;
		if(blnOneWay){ URL += TXT_ONEWAY.replace(regex, '-') + "/"; }
		URL += depIATAField.value + "/";
		URL += destIATAField.value + "/";
		if(monthField.value != '0'){ URL += encodeURIComponent(monthField.value) + '/'; }
		URL += fileName + '.htm';
	}
	else
	{
		URL = FLIGHTS_FOLDER + 'directoryresults.aspx';
		URL += '?aptDep=' + depIATAField.value;
		URL += '&aptDest=' + destIATAField.value;
		URL += '&depcity=' + encodeURIComponent(depField.value);
		URL += '&destcity=' + encodeURIComponent(destField.value);

		if(monthField.value != '0')
			URL += '&month=' + encodeURIComponent(monthField.value);

		URL += '&currency=' + currency.value;
		URL += '&way=' + (blnOneWay ? '1' : '2');
	}

	if(currency){ setCurrencyCookie(currency.value); }
	window.location.href = URL;
	return false;
}

// FORM VALIDATION
function validateByPriceForm(){
	var depField = GetItemById('tbAptDep3');
	var depIATAField = GetItemById('tbDepIata3');
	var errAptDep = GetItemById('errAptDep3');
	var continentField = GetItemById('ddContinents');
	var countryField = GetItemById('ddCountries');
	var blnOneWay = GetItemById('optOneWay3').checked;
	var chkDateRange = GetItemById('chkDateRange');
	var maxPrice = GetItemById('tbMaxPrice');
	var currency = GetItemById('ddCurrency3');

	if(trim(depField.value) == ''){
		if(errAptDep){ errAptDep.innerHTML = '<font color=red>X</font>'; }
		FocusItem(depField);
		alert(TXT_NO_DEP_ERROR);
		return false;
	}

	var URL = BYPRICE_FOLDER;
	var depCity = depField.value.replace(TXT_ALL_AIRPORTS,'');
	depCity = trim(depCity.replace(',',' ').replace('  ',' '));
	var regex = /\s+/g;
	var fileName = TXT_BYPRICE_NAME;
	fileName = fileName.replace('{0}', depCity);
	fileName = fileName.replace(regex, '-');

	if(depIATAField.value.length == 3){ URL += depIATAField.value + "/"; }
	else{ URL += encodeURIComponent(depField.value) + "/"; }

	URL += continentField.value + (countryField.value != '' ? '-' + countryField.value : '') + "/";
	if(blnOneWay){ URL += TXT_ONEWAY.replace(regex, '-') + "/"; }

	if(maxPrice && maxPrice.value.length > 0){
		URL += maxPrice.value + "/";
	}

	if(chkDateRange && chkDateRange.checked){
		URL += GetItemById('dtMinDate').value + "/";
		URL += GetItemById('dtMaxDate').value + "/";
	}

	URL += fileName + '.htm';
	
	if(currency){ setCurrencyCookie(currency.value); }
	abortFetchCountries();
	window.location.href = URL;

	return false;
}

function ExpandPanel(id, imgID, onImg, offImg){
	var panel = GetItemById(id);
	var image = GetItemById(imgID);

	if(panel.style.display == 'none')
	{
		panel.style.display = '';
		image.src = offImg;
	}
	else
	{
		panel.style.display = 'none';
		image.src = onImg;
	}
}

function SetItemDisabled(ids, disabled){
	try{
		for(var n = 0; n < ids.length; n++){
			var elem = GetItemById(ids[n]);
			if(elem){
				elem.disabled = disabled;
				for(var i = 0; i < elem.childNodes.length; i++){
					if(elem.childNodes[i].disabled != null){
						elem.childNodes[i].disabled = disabled;
					}
				}
			}
		}
	}
	catch(e){}
}

function SetElemVisibility(id, visible){
	var elem = GetItemById(id);
	if(elem){ elem.style.display = (visible ? '' : 'none'); }
}

function LoadSuggest(item,iata,lang,img,sendFunc,widthScale){
	if(!widthScale){ widthScale = 1.8; }
	UnInstall();
	InstallAC(document.CFLiveSearch, item, GetItemById(iata), LANG_ROOT_PATH + 'AJAX/SuggestResult.aspx', lang, GetItemById(img), sendFunc, widthScale);
}

function ContinentListChanged(elem, targetId, val){
	if(val == ''){ elem.selectedIndex -= 1; }
	if(elem){ FetchCountries(targetId, elem.value); }
}

function FocusItem(elem){
	elem.focus();
	elem.select();
}

function ValidateNumeric(evt, ctl){
	if(!evt && window.event){ evt = window.event; }
	var keyCode = evt.keyCode;	
	var MAX_LENGTH = 999999999;

	//navigation keys
	switch(keyCode){
		case 8: //backspace
		case 9: //tab
		case 35://end		
		case 36://home		
		case 37://left arrow
		case 39://right arrow
		case 46://delete
		case 144://num lock
			return true;
	}

	if((keyCode >= 45 && keyCode <= 57) || (keyCode >= 96 && keyCode <= 105)){
		var selLength = (document.selection ? document.selection.createRange().text : ctl.selectionEnd - ctl.selectionStart);
		if (selLength == 0 && parseInt(ctl.value + "" + String.fromCharCode(keyCode), 10) > MAX_LENGTH) {alert(TXT_AMOUNT_TOO_LARGE); evt.returnValue = false; return false;}
		return true;
	}
		
	evt.returnValue = false;
	return false;
}

// Trim leading/trailing whitespace off string
function trim(str){
	return str.replace(/^\s+|\s+$/g, '')
};

function GetItemById(id){
	return (document.all ? document.all[id] : document.getElementById(id));
}

function setCurrencyCookie(value){
	var docUri = new URI(document.domain);
	var host = null;
	if(docUri.DomainName.length > 0 && docUri.TLD.length > 0){ host = docUri.DomainName + docUri.TLD; }

	var dt = new Date();
	dt.setFullYear(dt.getFullYear()+1);
	cookieManager.setCookie('Currency', value, dt, '/', host);
}

var URI = function(url) {
	this.Url = "";
	this.TLD = "";
	this.DomainName = "";
	this.SubDomain = null;
	try{
		if(url.match(new RegExp(/^http\:\/\/|^https\:\/\/|^ftp\:\/[\/]/i))){
			url = url.replace(new RegExp(/^http\:\/\/|^https\:\/\/|^ftp\:\/[\/]/i), "");
		}
		url = url.replace(new RegExp(/\/(.*)/),""); 
		this.Url = trim(url);

		if(url.match(new RegExp(/\.[a-z]{2,3}\.[a-z]{2}$/i))){
			this.TLD = url.match(new RegExp(/\.[a-z]{2,3}\.[a-z]{2}$/i))[0];
			url = url.replace(this.TLD, ""); 
		}
		else if(url.match(new RegExp(/\.[a-z]{2,4}$/i))){
			this.TLD = url.match(new RegExp(/\.[a-z]{2,4}$/i))[0];
			url = url.replace(this.TLD, ""); 
		}

		if(url.indexOf(".") != -1){
			var ixDot = url.indexOf(".");
			this.DomainName = url.substr(ixDot+1);
			this.SubDomain = url.substr(0,ixDot);
		}
		else{ this.DomainName = url; }
	}
	catch(e){}
};

var cookieManager = {
	setCookie: function(name, value, expires, path, domain, secure){
		document.cookie = name + '=' + value +
			(expires ? '; expires=' + expires.toGMTString() : '') +
			(path ? '; path=' + path : '') +
			(domain ? '; domain=' + domain : '') +
			(secure ? '; secure' : '');
	},
	getCookie: function(name){
		var arg = name + '[\=]([^\;]*)?';
		var re = new RegExp(arg);
		var m = re.exec(document.cookie);

		if(m == null) return m;
		else return m[1];
	},
	getValue: function(text, name){
		var arg = name + '[\=]([^\;|^\&]*)?';
		var re = new RegExp(arg);
		var m = re.exec(text);

		if(m == null) return m;
		else return m[1];
	}
};