//poll related function
var ToShowPoll = 1

function SetNoShowPoll() {
	ToShowPoll = 0
}

//check whether passed parameter is a valid number
function notNumber(number) {
	number = number.toString()

	for (var i=0; i<number.length; i++) {
		if (number.charAt(i) > "9" || number.charAt(i) < "0") return true
	}

	return false
}


//format number as currency
function formatCur(number, currencyCode) {
	if (number.toString() == "0") return currencyCode + " 0.00"
	if (number == "") return "on request"

	if (number < 0) {
		var sign = "-"
		number = -number
	} else var sign = ""

	number = Math.round(number * 100).toString()
	var decimal = number.substring(number.length-2, number.length)
	number = number.substring(0, number.length-2)

	var tmpNumber = ""

	for (var i=0; i<number.length; i++) {
		if (i % 3 == 0 && i != 0) tmpNumber = "," + tmpNumber
		tmpNumber = number.substring(number.length - i - 1, number.length - i) + tmpNumber
	}

	return currencyCode + " " + sign + tmpNumber + "." + decimal
}


//check whether passed validated control contains any of passes invalid characters (case insensitive)
function invalidChars(validatedControl, validatedName, charString) {
	var validatedString = trim(validatedControl.value).toLowerCase()
	charString = charString.toLowerCase()

	for (var i=0; i<validatedString.length; i++) {
		for (var j=0; j<charString.length; j++) {
			if (validatedString.charAt(i) == charString.charAt(j)) {
				var alertString = charString.split("").join("  ")
				alertString = alertString.split("     ").join("  space  ")
				alert(validatedName + " cannot contain any of the following\nillegal characters:\n\n " + alertString)
				validatedControl.focus()
				return true
			}
		}
	}

	return false
}


//check whether text-box is empty
function isEmpty(field, fieldName) {
	if (trim(field.value) == "") {
		alert("Please enter " + fieldName + ".")
		field.focus()
		return true
	}

	return false
}


//check whether selection has been made in the select-box
function notSelected(field, fieldName) {
	if (field.selectedIndex == 0) {
		alert("Please select " + fieldName + ".")
		field.focus()
		return true
	}

	return false
}


//trim string
function trim(stringToTrim) {
	var trimmedString = ""

	//left trim
	for(var i=0; i<stringToTrim.length; i++) {
		if (stringToTrim.charAt(i) != " ") break
	}

	trimmedString = stringToTrim.substring(i)

	//right trim
	for(var i=trimmedString.length-1; i>=0; i--) {
		if (trimmedString.charAt(i) != " ") break
	}

	trimmedString = trimmedString.substring(0, i + 1)

	return trimmedString
}


//validate email address
function notEmail(field) {
	var email = trim(field.value)

	if (email == "") return false

	var at = false
	var dot = false

	for (var i=0; i<email.length; i++) {
		if (email.charAt(i) == "@") at = true
		if (email.charAt(i) == "." && at) dot = true
	}

	if (at && dot && email.length > 5) return false

	alert("The e-mail you entered is not a valid e-mail address.")
	field.focus()
	return true
}


//validate ASCII Character Set 
function charCheck(field, message) {
	var txt = field.value

	for (var i=0; i<txt.length; i++) {
		if (txt.charCodeAt(i) >= 128) {	
			alert(message) 
			field.focus()
			return true
		}
	}

	return false
}



//Checks if selected item has invalid value then select item with gotoIndex
function checkInvalVal(sel, invalVal, gotoIndex) {
	if (sel.options[sel.selectedIndex].value == invalVal) {		
		sel.selectedIndex = gotoIndex
	}
}//remote scripting object constructor
function remScript(url, callBack, containerName, objName) {
	if (typeof(containerName) == "undefined")
		containerName = "rs"

	if (typeof(objName) == "undefined")
		objName = "objRS"

	this.containerName = containerName
	this.objName = objName
	this.url = url
	this.callBack = callBack
	this.busy = false
	this.createContainer = createContainer
	this.getData = getData
}

//create container for remote data
function createContainer(blankSrc) {
	if (typeof(blankSrc) == "undefined") {
		if (typeof(affID) == "undefined")
			blankSrc = "/blank.htm"
		else
			blankSrc = "about:blank"
	}

	if (document.layers)
		document.write("<layer name=" + this.containerName + " visibility=hidden width=0 height=0></layer>")
	else
		document.write("<iframe name=" + this.containerName + " src=" + blankSrc + " style=visibility:hidden width=0 height=0></iframe>")
}

//load container with remote data
function getData(func, args) {
	var d = new Date()
	var params = "f=" + escape(func) + "&o=" + escape(this.objName) + "&u=" + d.getTime()

	for (var i=0; i<arguments.length-1; i++) {
		params += "&p=" + escape(arguments[i+1])
	}

	if (document.layers)
		document.layers[this.containerName].src = this.url + "?" + params
	else
		window.frames[this.containerName].location.replace(this.url + "?" + params)
}
//requires initialisation of the following variables:
//curDay, curMonth (0-11), curYear

//date validation
function validDate(date, ctlDay) {
	return date.getDate() == getVal(ctlDay)
}


//clear options of select control
function clearSelect(ctl, preservedOpt) {
	for (var i=ctl.options.length-1; i>preservedOpt; i--) ctl.options[i] = null
}


//populate and set select boxes
function populateDates(frm, startBlank) {
	var preservedOpt

	if (startBlank) preservedOpt = 0
	else preservedOpt = -1

	populateDay(frm.inDay, preservedOpt)
	populateMonth(frm.inMonth, preservedOpt)
	populateYear(frm.inYear, preservedOpt)
	populateDay(frm.outDay, preservedOpt)
	populateMonth(frm.outMonth, preservedOpt)
	populateYear(frm.outYear, preservedOpt)

	setDefDates(frm, startBlank)
}


//populate day select box
function populateDay(ctl, preservedOpt) {
	clearSelect(ctl, preservedOpt)
	
	var newText
	
	for (var i=1+preservedOpt; i<32+preservedOpt; i++) {
		newText = i-preservedOpt
		if (newText < 10) newText = "0" + newText
		ctl[i] = new Option(newText, i-preservedOpt)
	}
}


//populate month select box
function populateMonth(ctl, preservedOpt) {
	var monthArray = new Array("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec")
	clearSelect(ctl, preservedOpt)
	for (var i=1+preservedOpt; i<13+preservedOpt; i++) ctl[i] = new Option(monthArray[i-1-preservedOpt], i-preservedOpt)
}


//populate year select box
function populateYear(ctl, preservedOpt) {
	clearSelect(ctl, preservedOpt)
	for (var i=1+preservedOpt; i<4+preservedOpt; i++) ctl[i] = new Option(i+curYear-1-preservedOpt, i+curYear-1-preservedOpt)
}


//set default dates
function setDefDates(frm, startBlank) {
	var defInDay, defInMonth, defInYear, defOutDay, defOutMonth, defOutYear
	var noCookie = true

	//extract dates from cookie
	var cookieArray = document.cookie.split("|")

	for (var i=0; i<cookieArray.length; i++) {
		if (cookieArray[i] == "SearchEng") {
			defInDay = parseInt(cookieArray[i+4])
			defInMonth = parseInt(cookieArray[i+5])
			defInYear = parseInt(cookieArray[i+6])
			defOutDay = parseInt(cookieArray[i+7])
			defOutMonth = parseInt(cookieArray[i+8])
			defOutYear = parseInt(cookieArray[i+9])

			noCookie = false

			break
		}
	}

	//use (today+20) for defaults if no cookie set
	if (noCookie && !startBlank) {
		var defInDate = new Date(curYear, curMonth, curDay + 20)
		var defOutDate = new Date(curYear, curMonth, curDay + 21)

		defInDay = defInDate.getDate()
		defInMonth = defInDate.getMonth() + 1
		defInYear = defInDate.getFullYear()
		defOutDay = defOutDate.getDate()
		defOutMonth = defOutDate.getMonth() + 1
		defOutYear = defOutDate.getFullYear()
	}

	//set dates
	if (!noCookie || !startBlank) {
		setVal(frm.inDay, defInDay)
		setVal(frm.inMonth, defInMonth)
		setVal(frm.inYear, defInYear)
		setVal(frm.outDay, defOutDay)
		setVal(frm.outMonth, defOutMonth)
		setVal(frm.outYear, defOutYear)
	}
}


//set select box value
function setVal(ctl, newVal) {
	for (var i=0; i<ctl.length; i++) {
		if (ctl[i].value == newVal) {
			ctl[i].selected = true
			ctl.selectedIndex = i
			break
		}
	}
}


//get select box value
function getVal(ctl) {
	return ctl[ctl.selectedIndex].value
}


//reset out date to (in date + 1)
function resetOutDate(frm) {
	var newOutDate = new Date(getVal(frm.inYear), getVal(frm.inMonth) - 1, parseInt(getVal(frm.inDay)) + 1)

	var newOutDay = newOutDate.getDate()
	var newOutMonth = newOutDate.getMonth() + 1
	var newOutYear = newOutDate.getFullYear()

	setVal(frm.outDay, newOutDay)
	setVal(frm.outMonth, newOutMonth)
	setVal(frm.outYear, newOutYear)
}


//check whether selected value of select box is empty string
function emptySel(ctl) {
	if (getVal(ctl) == "") {
		alert("Please enter your Travel Dates.")
		ctl.focus()
		return true
	}

	return false
}


//validate dates and save them to cookie
function validateDates(frm) {
	if (emptySel(frm.inDay) || emptySel(frm.inMonth) || emptySel(frm.inYear) || emptySel(frm.outDay) || emptySel(frm.outMonth) || emptySel(frm.outYear))
		return false

	var checkinDate = new Date(getVal(frm.inYear), getVal(frm.inMonth) - 1, getVal(frm.inDay))
	var checkoutDate = new Date(getVal(frm.outYear), getVal(frm.outMonth) - 1, getVal(frm.outDay))

	//validate checkin date
	if (!validDate(checkinDate, frm.inDay)) {
		alert("Please enter a valid Checkin Date.")
		frm.inDay.focus()
		return false
	}

	var curDate = new Date(curYear, curMonth, curDay)

	if (checkinDate - curDate < 0) {
		alert("The Checkin Date you have entered is in the past.")
		frm.inDay.focus()
		return false
	}

	//validate checkout date
	if (!validDate(checkoutDate, frm.outDay)) {
		alert("Please enter a valid Checkout Date.")
		frm.outDay.focus()
		return false
	}

	//validate checkin - checkout difference
	if (checkoutDate - checkinDate > 2160000000) {  //25 days in milliseconds
		alert("Your period of stay should be not longer than 25 nights.\n\nIf you wish to book for more than 25 nights,\nplease send us an e-mail with your request.")
		frm.outDay.focus()
		return false
	}

	if (checkoutDate - checkinDate <= 0) {
		alert("The Checkout Date should be greater than the Checkin Date.")
		frm.outDay.focus()
		return false
	}

	//save dates to cookie
	setDatesCookie(getVal(frm.inDay), getVal(frm.inMonth), getVal(frm.inYear), getVal(frm.outDay), getVal(frm.outMonth), getVal(frm.outYear))

	return true
}


//save dates to cookie
function setDatesCookie(inDay, inMonth, inYear, outDay, outMonth, outYear) {
	var arrCookie = document.cookie.split("|")
	var i

	var defCountry = ""
	var defCity = ""
	var defSuburb = ""

	for (i=0; i<arrCookie.length; i++) {
		if (arrCookie[i] == "SearchEng") {
			defCountry = arrCookie[i+1]
			defCity = arrCookie[i+2]
			defSuburb = arrCookie[i+3]

			break
		}
	}

	document.cookie = "|SearchEng|" + defCountry + "|" + defCity + "|" + defSuburb + "|"
		+ inDay + "|" + inMonth + "|" + inYear + "|"
		+ outDay + "|" + outMonth + "|" + outYear + "|"
		+ ";path=/"
}
//wekdays array
var wkdArray = new Array("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat")

//stas 24/01/2002
var initialised  //andrew!!

var curDay, curMonth, curYear
var arrCountries, arrCur, arrData
var sourceCtl, targetCtl
var defSuburb  //andrew!!

//index of last selected city
var lastCity = 0


//initialise dates
function initDates(frm) {
	populateDates(frm, false)
	setWkd(frm)
}


//initialise search engine
function initSearchEng() {
	sourceCtl = ""
	targetCtl = ""
	arrLoading = new Array("loading...          ")

	arrData = new Array()
	arrData["city"] = new Array()
	arrData["suburb"] = new Array()

	defSuburb = ""

	initialised = false

	//extract default country, city and suburb from cookie
	var cookieArray = document.cookie.split("|")

	for (var i=0; i<cookieArray.length; i++) {
		if (cookieArray[i] == "SearchEng") {
			defCountry = cookieArray[i+1]	//declared in SearchEngine.inc
			defCity = cookieArray[i+2]	//declared in SearchEngine.inc
			defSuburb = cookieArray[i+3]
			break
		}
	}

	//stas 24/01/2002

	//lock form controls
	setAccess(false, frm.country, frm.city, frm.suburb, frm.sb)

	//display "loading..." in the controls that will be repopulated
	populate(frm.country, arrLoading)
	populate(frm.city, arrLoading)
	populate(frm.suburb, arrLoading)

	//get remote data
	objRS.busy = true
	objRS.getData("HCSearchEngineGetCountries", disabled, affID)
}


//set select box text
function setText(ctl, newText) {
	for (var i=0; i<ctl.length; i++) {
		if (ctl[i].text == newText) {
			ctl[i].selected = true
			ctl.selectedIndex = i
			return true
		}
	}

	return false
}


//get select box's text
function getText(selBox) {
	return selBox[selBox.selectedIndex].text
}


//handle country-change event
function countryChange(ctl) {
	//reset currency
	frm.curCode.value = arrCur[ctl.selectedIndex]

	//repopulate cities
	sourceCtl = ctl
	targetCtl = frm.city

	lastCity = 0

	ctlChange("HCSearchEngineGetCities")
}


//handle city-change event
function cityChange(ctl) {
	if (getText(ctl).substr(1, 3) == "---"){
		ctl.selectedIndex = lastCity
		return
	}

	sourceCtl = ctl
	targetCtl = frm.suburb

	lastCity = ctl.selectedIndex

	ctlChange("HCSearchEngineGetSuburbs")
}


//handle control-change event
function ctlChange(func) {
	var selArray = arrData[targetCtl.name][getText(sourceCtl)]

	if (typeof(selArray) == "undefined") {
		//lock form controls
		setAccess(false, frm.country, frm.city, frm.suburb, frm.sb)

		//display "loading..." in the controls that will be repopulated
		populate(targetCtl, arrLoading)
		if (targetCtl == frm.city) populate(frm.suburb, arrLoading)

		//get remote data
		objRS.busy = true
		objRS.getData(func, disabled, affID, getText(sourceCtl))
	} else
		rsCallBack(selArray)
}


//remote scripting callback function
function rsCallBack(data) {
	//for ... Netscape 6
	if (typeof(initialised) == "undefined") return

	//stas 24/01/2002
	if (!initialised) {
		initialised = true  //andrew!!

		//set current date
		curDay = data[0]
		curMonth = data[1]
		curYear = data[2]

		//initialise dates		//andrew!!
		initDates(frm)

		//countries array
		arrCountries = data[3]

		//currencies array
		arrCur = data[4]

		//unlock form controls
		//setAccess(true, frm.country, frm.city, frm.suburb, frm.sb)  //andrew!!
		//objRS.busy = false  //andrew!!

		//populate and set country box
		populate(frm.country, arrCountries)
		setText(frm.country, defCountry)

		countryChange(frm.country)

		return
	}

	//save downloaded data to data array
	arrData[targetCtl.name][getText(sourceCtl)] = data

	//populate target select box
	populate(targetCtl, data)

	//unlock form controls
	setAccess(true, frm.country, frm.city, frm.suburb, frm.sb)

	objRS.busy = false
	if (targetCtl == frm.city) cityChange(frm.city)
}


//populate select box with data
function populate(selBox, data) {
	var startNum = 0
	selBox.length = 0

	if (selBox.name == "suburb" && data[0].substring(0, 10) != "loading...") {
		selBox[0] = new Option("All Suburbs", "")
		startNum = 1
	}

	for (var i=0; i<data.length; i++) selBox[i+startNum] = new Option(data[i])
	selBox.selectedIndex = 0

	//set default and clear it after first use
	if (selBox.name == "city") {
		if (setText(selBox, defCity)) defCity = ""
	} else {
		if (setText(selBox, defSuburb)) defSuburb = ""
	}
}


//set access to the passed controls
function setAccess(access, ctls) {
	var ctl

	if (document.layers) {
		for (var i=1; i<arguments.length; i++) {
			ctl = arguments[i]
			if (typeof(ctl) != "object") continue

			if (access)
				ctl.onFocus = ""
			else {
				ctl.onFocus = ctl.blur
				ctl.blur()
			}
		}
	} else {
		for (var i=1; i<arguments.length; i++) {
			ctl = arguments[i]
			if (typeof(ctl) != "object") continue
			ctl.disabled = !access
		}
	}
}


//submit the form
function submitForm(frm, searchBy) {
	frm.searchBy.value = searchBy

	if (searchBy == "Name") {
		//validate hotel name
		if (invalidChars(frm.hotelName, "Hotel Name", "%")) return
		
		if (trim(frm.hotelName.value).length < 3) {
			alert("Hotel Name should be at least 3 characters long.")
			frm.hotelName.focus()
			return
		}
	} else {
		//do not submit the form if remote scripting object is busy
		if (objRS.busy) return

		//validate from rate
		if (notNumber(trim(frm.rateFrom.value))) {
			alert("Please enter a valid From Rate.")
			frm.rateFrom.focus()
			return
		}
		
		//validate to rate
		if (notNumber(trim(frm.rateTo.value))) {
			alert("Please enter a valid To Rate.")
			frm.rateTo.focus()
			return
		}
		
		//check that (from rate) < (to rate)
		if (trim(frm.rateFrom.value).length > 0 && trim(frm.rateTo.value).length > 0) {
			if (parseInt(frm.rateFrom.value) > parseInt(frm.rateTo.value)) {
				alert("The To Rate should be not less than the From Rate.")
				frm.rateTo.focus()
				return
			}
		}
		
		//check that at least one star rating is selected
		if (!(frm.star3.checked || frm.star4.checked || frm.star5.checked)) {
			alert("Please select at least one Star Rating.")
			frm.star5.focus()
			return
		}
	}

	//save selected country, city and suburb to cookie
	document.cookie = "|SearchEng|" + getText(frm.country) + "|" + getText(frm.city) + "|" + getText(frm.suburb) + "|"
		+ ";path=/"

	//check dates and submit the form
	if (validateDates(frm)) frm.submit()
}


//prosess key-press event in hotel name text-box
function keyPressed(frm, pressedKeyCode) {
	if (pressedKeyCode == 13) submitForm(frm, "Name")
}


//set weekdays
function setWkd(frm) {
	var checkinDate = new Date(getVal(frm.inYear), getVal(frm.inMonth) - 1, getVal(frm.inDay))
	var checkoutDate = new Date(getVal(frm.outYear), getVal(frm.outMonth) - 1, getVal(frm.outDay))

	frm.inWkd.value = "(" + wkdArray[checkinDate.getDay()] + ")"
	frm.outWkd.value = "(" + wkdArray[checkoutDate.getDay()] + ")"

	var numNights = Math.round((checkoutDate - checkinDate) / 86400000)

	if (Math.abs(numNights) == 1)
		numNights += " night"
	else
		numNights += " nights"

	frm.lenStay.value = numNights
}