var maxpeople = 0;
var firstday = "";
var lastday =  "";


//document.step1.hotelselect.selectedIndex=0;
function buildselect(theSelect, theMax){
	var tSelected=theSelect.selectedIndex;
	theSelect.options.length=0;
	theSelect.options[0]=new Option("---");
	theSelect.options[0].value=0;
	for (i=1;i<=theMax;i++)
		theSelect.options[theSelect.options.length]=new Option(i);
	}
	
function displayinfo(theHotel){
	var tName="info_" + theHotel;
	document.getElementById('hotelinfo').innerHTML=document.getElementById(tName).innerHTML
	}
	
function enable(theMaxPlaces, theFirstDay,theLastDay, theHotel){
	document.getElementById("fields").style.display='block';
	document.getElementById("submit").disabled=false;
	maxpeople=theMaxPlaces;
	firstday=theFirstDay;
	lastday=theLastDay;
	buildselect(document.step1.numbambini, theMaxPlaces);
	buildselect(document.step1.numadulti, theMaxPlaces);
	document.step1.hotel.value=theHotel;
	
	calArrivo = new CalendarPopup();
	calArrivo.setReturnFunction("setArrivoPopup");
	//calArrivo.addDisabledDates(null, "2006-04-20");
	calArrivo.firstday=firstday
	calArrivo.lastday=lastday
	calArrivo.addDisabledDates(null, firstday);
	calArrivo.addDisabledDates(lastday, null);
	
	calPartenza = new CalendarPopup();
	calPartenza.firstday=firstday
	calPartenza.lastday=lastday
	calPartenza.setReturnFunction("setPartenzaPopup");
	calPartenza.addDisabledDates(null, firstday);
	calPartenza.addDisabledDates(lastday, null);
	}
	
function disable(){
	document.getElementById("fields").style.display='none';
	document.getElementById("submit").disabled=true;
	document.step1.hotelselect.selectedIndex=0;
	}
	
	
var calArrivo = new CalendarPopup();
//alert(calArrivo);

calArrivo.setReturnFunction("setArrivoPopup");
function setArrivoPopup(y,m,d) {
	//alert(y + "/" + m + "/" + d)
	document.step1.arrive_y.value=y;
	document.step1.arrive_m.selectedIndex=m;
	for (var i=0; i<document.step1.arrive_d.options.length; i++) {
		if (document.step1.arrive_d.options[i].value==d) {
			document.step1.arrive_d.selectedIndex=i;
		}
	}
}
var calPartenza = new CalendarPopup();
calPartenza.setReturnFunction("setPartenzaPopup");

function setPartenzaPopup(y,m,d) {
	document.step1.departure_y.value=y;
	document.step1.departure_m.selectedIndex=m;
	for (var i=0; i<document.step1.departure_d.options.length; i++) {
		if (document.step1.departure_d.options[i].value==d) {
			document.step1.departure_d.selectedIndex=i;
		}
	}
}
function getDateString(y_obj,m_obj,d_obj) {
	var y = y_obj.options[y_obj.selectedIndex].value;
	var m = m_obj.options[m_obj.selectedIndex].value;
	var d = d_obj.options[d_obj.selectedIndex].value;
	if (y=="" || m=="") { return null; }
	if (d=="") { d=1; }
	return str= y+'-'+m+'-'+d;
}

function addZero(arg) {
	if(arg < 10) return '0' + arg;
		else return arg;
	}
	
function checkForm(form){ 
	var tErrors="";
	//var adulti = parseInt(form.numadulti.options[form.numadulti.selectedIndex].value);
	//var bambini_312 = parseInt(form.numbambini.options[form.numbambini.selectedIndex].value);
	var adulti = form.numadulti.selectedIndex;
	var bambini_312 = form.numbambini.selectedIndex;
	var arrive = new Date();
	var departure = new Date();
	
	
	if (form.arrive_d.selectedIndex == 0){
		tErrors+=s_indgcheckin + "\n\n";
		}
	if (form.arrive_m.selectedIndex == 0){
		tErrors+=s_indmcheckin + "\n\n";
		}
	if (form.arrive_y.selectedIndex == 0){
		tErrors+=s_indacheckin + "\n\n";
		}
	if (form.departure_d.selectedIndex == 0){
		tErrors+=s_indgcheckout + "\n\n";
		}
	if (form.departure_m.selectedIndex == 0){
		tErrors+=s_indmcheckout + "\n\n";
		}
	if (form.departure_y.selectedIndex == 0){
		tErrors+=s_indacheckout + "\n\n";
		}
		
	arrive.setFullYear(form.arrive_y.options[form.arrive_y.selectedIndex].value, form.arrive_m.selectedIndex - 1, form.arrive_d.selectedIndex);
	departure.setFullYear(form.departure_y.options[form.departure_y.selectedIndex].value, form.departure_m.selectedIndex - 1, form.departure_d.selectedIndex);
	
	switch(form.arrive_m.selectedIndex) {
		case 4:
			if(form.arrive_d.selectedIndex > 30)
				tErrors+=s_inddcheckinv + "\n\n";
			break;
		case 6:
			if(form.arrive_d.selectedIndex > 30)
				tErrors+=s_inddcheckinv + "\n\n";
			break;
		case 9:
			if(form.arrive_d.selectedIndex > 30)
				tErrors+=s_inddcheckinv + "\n\n";
			break;
		case 11:
			if(form.arrive_d.selectedIndex > 30)
				tErrors+=s_inddcheckinv + "\n\n";
			break;
		case 2:
			if(form.arrive_d.selectedIndex > 29)
				tErrors+=s_inddcheckinv + "\n\n";
			else if((form.arrive_d.selectedIndex > 28) && ((parseInt(form.arrive_y.options[form.arrive_y.selectedIndex].value) % 4) != 0)){
				tErrors+=s_inddcheckinv + "\n\n";
				}
			break;
		}
		
		
	switch(form.departure_m.selectedIndex) {
		case 4:
			if(form.departure_d.selectedIndex > 30)
				tErrors+=s_inddcheckoutv;
			break;
		case 6:
			if(form.departure_d.selectedIndex > 30)
				tErrors+=s_inddcheckoutv;
			break;
		case 9:
			if(form.departure_d.selectedIndex > 30)
				tErrors+=s_inddcheckoutv;
			break;
		case 11:
			if(form.departure_d.selectedIndex > 30)
				tErrors+=s_inddcheckoutv;
			break;
		case 2:
			if(form.departure_d.selectedIndex > 29)
				tErrors+=s_inddcheckoutv;
			else if((form.departure_d.selectedIndex > 28) && ((parseInt(form.departure_y.options[form.departure_y.selectedIndex].value) % 4) != 0))
				tErrors+=s_inddcheckoutv;
			break;
		}
		
		
	var firstdayI = parseInt(firstday.replace(/-/g, ''));
	var lastdayI = parseInt(lastday.replace(/-/g, ''));
	var arriveI = parseInt(form.departure_y.options[form.arrive_y.selectedIndex].value + addZero(form.arrive_m.selectedIndex) + addZero(form.arrive_d.selectedIndex));
	var departureI = parseInt(form.departure_y.options[form.departure_y.selectedIndex].value + addZero(form.departure_m.selectedIndex) + addZero(form.departure_d.selectedIndex));
	
	if((arriveI < firstdayI) || (arriveI > lastdayI)) tErrors+= s_datacheckinc + invertiData(firstday) + s_datacheckinc2 + invertiData(lastday) + ".\n\n";
	if((departureI < firstdayI) || (departureI > lastdayI)) tErrors+= s_datacheckoutc + invertiData(firstday) + s_datacheckinc2 + invertiData(lastday) + ".\n\n";
	
	if (form.numadulti.selectedIndex == 0){
		tErrors += s_indadulti;
		}
	if((adulti + bambini_312) > maxpeople){
		tErrors += s_totsup + maxpeople + s_totsup2;
		}
	if(arriveI >= departureI){
		tErrors += s_gsucc;
		}
	if (tErrors!=""){
		alert(tErrors);
		return false;
		}
	return true;
}
function invertiData(arg) {
	if(arg.length == 10) {
		var giorno = arg.substring(8, 10);
		var mese = arg.substring(5, 7);
		var anno = arg.substring(0, 4);
		return giorno + '-' + mese + '-' + anno;
		}
	else
		return '';
	}