// Title: Tigra Calendar
// URL: http://www.softcomplex.com/products/tigra_calendar/
// Version: 3.3 (mySQL format)
// Date: 03/09/2007
// Note: Permission given to use this script in ANY kind of applications if
//    header lines are left unchanged.
// Note: Script consists of two files: calendar?.js and calendar.html

// if two digit year input dates after this year considered 20 century.
var NUM_CENTYEAR = 30;
// is time input control required by default
var BUL_TIMECOMPONENT = false;
// are year scrolling buttons required by default
var BUL_YEARSCROLL = true;

var calendars = [];
var RE_NUM = /^\-?\d+$/;

function calendar3(obj_target,obj_month,obj_day,lang) {

	// assigning methods
	this.gen_date = cal_gen_date3;
	this.gen_time = cal_gen_time3;
	this.gen_tsmp = cal_gen_tsmp3;
	this.prs_date = cal_prs_date3;
	this.prs_time = cal_prs_time3;
	this.prs_tsmp = cal_prs_tsmp3;
	this.popup    = cal_popup3;
	this.UpdCal   = UpdateCal;

	// validate input parameters
	if (!obj_target)
		return cal_error("Error calling the calendar: no target control specified");
	if (obj_target.value == null)
		return cal_error("Error calling the calendar: parameter specified is not valid target control");
	this.target = obj_target;
	this.time_comp = BUL_TIMECOMPONENT;
	this.year_scroll = BUL_YEARSCROLL;
	
	// register in global collections
	this.id = calendars.length;
	this.lang = lang;
	this.obj_month = obj_month;
	this.obj_day = obj_day;
	calendars[this.id] = this;
}

function cal_popup3 (str_datetime) {
	if (str_datetime) {
		this.dt_current = this.prs_tsmp(str_datetime);
	}
	else {
		this.target = parent.document.getElementById(this.target.name)
		this.dt_current = this.prs_tsmp(this.target.value);
		//this.dt_current = parent.document.getElementById(this.target.name).value
//alert(this.target.name);
//alert(parent);	
//alert(parent.document.getElementById(this.target.name).value);		
//alert(this.target.value);
		this.dt_selected = this.dt_current;
	}
	if (!this.dt_current) return;

	var obj_calwindow = window.open(
		'http://' + myHost + '/calendar.php?datetime=' + this.dt_current.valueOf()+ '&id=' + this.id + '&lang=' + this.lang,
		//'http://localhost/jat/httpdocs/calendar.php?datetime=' + this.dt_current.valueOf()+ '&id=' + this.id + '&lang=' + this.lang,
		'Calendar', 'width=200,height='+(this.time_comp ? 200 : 185)+
		',status=no,resizable=no,top=200,left=200,dependent=yes,alwaysRaised=yes'
	);
	obj_calwindow.opener = window;
	obj_calwindow.focus();
}

// timestamp generating function
function cal_gen_tsmp3 (dt_datetime) {
	return(this.gen_date(dt_datetime) + ' ' + this.gen_time(dt_datetime));
}

// date generating function
function cal_gen_date3 (dt_datetime) {
	return (
		dt_datetime.getFullYear() + "-"
		+ (dt_datetime.getMonth() < 9 ? '0' : '') + (dt_datetime.getMonth() + 1) + "-"
		+ (dt_datetime.getDate() < 10 ? '0' : '') + dt_datetime.getDate()
	);
}
// time generating function
function cal_gen_time3 (dt_datetime) {
	return (
		(dt_datetime.getHours() < 10 ? '0' : '') + dt_datetime.getHours() + ":"
		+ (dt_datetime.getMinutes() < 10 ? '0' : '') + (dt_datetime.getMinutes()) + ":"
		+ (dt_datetime.getSeconds() < 10 ? '0' : '') + (dt_datetime.getSeconds())
	);
}

// timestamp parsing function
function cal_prs_tsmp3 (str_datetime) {
	// if no parameter specified return current timestamp
	if (!str_datetime)
		return (new Date());

	// if positive integer treat as milliseconds from epoch
	if (RE_NUM.exec(str_datetime))
		return new Date(str_datetime);
		
	// else treat as date in string format
	var arr_datetime = str_datetime.split(' ');
	return this.prs_time(arr_datetime[1], this.prs_date(arr_datetime[0]));
}

// date parsing function
function cal_prs_date3 (str_date) {

	var arr_date = str_date.split('-');

	if (arr_date.length != 3) return alert ("Invalid date format: '" + str_date + "'.\nFormat accepted is yyyy-mm-dd.");

	if (!arr_date[0]) return alert ("Invalid date format: '" + str_date + "'.\nNo year value can be found.");
	if (!RE_NUM.exec(arr_date[0])) return alert ("Invalid year value: '" + arr_date[0] + "'.\nAllowed values are unsigned integers.");

	if (!arr_date[1]) return alert ("Invalid date format: '" + str_date + "'.\nNo month value can be found.");
	if (!RE_NUM.exec(arr_date[1])) return alert ("Invalid month value: '" + arr_date[1] + "'.\nAllowed values are unsigned integers.");

	if (!arr_date[2]) return alert ("Invalid date format: '" + str_date + "'.\nNo day of month value can be found.");
	if (!RE_NUM.exec(arr_date[2])) return alert ("Invalid day of month value: '" + arr_date[2] + "'.\nAllowed values are unsigned integers.");



	var dt_date = new Date();
	dt_date.setDate(1);

	if (arr_date[0] < 100) arr_date[0] = Number(arr_date[0]) + (arr_date[0] < NUM_CENTYEAR ? 2000 : 1900);
	dt_date.setFullYear(arr_date[0]);


	if (arr_date[1] < 1 || arr_date[1] > 12) return alert ("Invalid month value: '" + arr_date[1] + "'.\nAllowed range is 01-12.");
	dt_date.setMonth(arr_date[1] - 1);
	 

	var dt_numdays = new Date(arr_date[0], arr_date[1], 0);
	dt_date.setDate(arr_date[2]);
	if (dt_date.getMonth() != (arr_date[1]-1)) return alert ("Invalid day of month value: '" + arr_date[2] + "'.\nAllowed range is 01-"+dt_numdays.getDate()+".");

	return (dt_date)
}

// time parsing function
function cal_prs_time3 (str_time, dt_date) {

	if (!dt_date) return null;
	var arr_time = String(str_time ? str_time : '').split(':');

	if (!arr_time[0]) dt_date.setHours(0);
	else if (RE_NUM.exec(arr_time[0])) 
		if (arr_time[0] < 24) dt_date.setHours(arr_time[0]);
		else return cal_error ("Invalid hours value: '" + arr_time[0] + "'.\nAllowed range is 00-23.");
	else return cal_error ("Invalid hours value: '" + arr_time[0] + "'.\nAllowed values are unsigned integers.");
	
	if (!arr_time[1]) dt_date.setMinutes(0);
	else if (RE_NUM.exec(arr_time[1]))
		if (arr_time[1] < 60) dt_date.setMinutes(arr_time[1]);
		else return cal_error ("Invalid minutes value: '" + arr_time[1] + "'.\nAllowed range is 00-59.");
	else return cal_error ("Invalid minutes value: '" + arr_time[1] + "'.\nAllowed values are unsigned integers.");

	if (!arr_time[2]) dt_date.setSeconds(0);
	else if (RE_NUM.exec(arr_time[2]))
		if (arr_time[2] < 60) dt_date.setSeconds(arr_time[2]);
		else return cal_error ("Invalid seconds value: '" + arr_time[2] + "'.\nAllowed range is 00-59.");
	else return cal_error ("Invalid seconds value: '" + arr_time[2] + "'.\nAllowed values are unsigned integers.");

	dt_date.setMilliseconds(0);
	return dt_date;
}

function cal_error (str_message) {
	alert (str_message);
	return null;
}

function UpdateCal() {
   var FormValues = this.target.value.split("-");
   //var FormValues = parent.document.getElementById(this.target.name).value.split("-");
   var values = new Array();
   values[0] = FormValues[0]+FormValues[1];
   values[1] = FormValues[2];
   for (var i = 0; i < document.getElementById(this.obj_month).options.length; i++) {
      if (document.getElementById(this.obj_month).options[i].value == values[0]) {
         document.getElementById(this.obj_month).selectedIndex = i
         break
      }
   }
	document.getElementById(this.obj_day).value = values[1]

   if(this.target.id == "startTimeCal")
      changeMonthFrom();
   else if(this.target.id == "endTimeCal")
      changeMonthTo();
   else if(this.target.id == "hotelsStartTimeCal")
      changeHotelsMonthFrom();
   else if(this.target.id == "hotelsEndTimeCal")
      changeHotelsMonthTo();
   else if(this.target.id == "racStartTimeCal")
      changeRacMonthFrom();
   else if(this.target.id == "racEndTimeCal")
      changeRacMonthTo();

   for (var i = 0; i < document.getElementById(this.obj_day).options.length; i++) {
      if (document.getElementById(this.obj_day).options[i].value == values[1]) {
         document.getElementById(this.obj_day).selectedIndex = i
         break
      }
   }
	
   if(this.target.id == "startTimeCal")
      setToNextWeek();
   else if(this.target.id == "hotelsStartTimeCal")
      setHotelsToNextWeek();
   else if(this.target.id == "racStartTimeCal")
      setRacToNextWeek();

//    document.getElementById(this.obj_month).value = values[0];
//    document.getElementById(this.obj_day).value = values[1];
//    alert(this.target.value);
//    alert(document.getElementById(this.obj_month).value);
//    alert(document.getElementById(this.obj_day).value);
	decideSubmitText();
}

function UpdateCalInput(id) {
   if(id == "startTimeCal"){
      UpdateCalInputStart();
   } else if(id == "endTimeCal") {
      UpdateCalInputEnd();
   } else if(id == "hotelsStartTimeCal") {
      UpdateHotelsCalInputStart();
   } else if(id == "hotelsEndTimeCal") {
      UpdateHotelsCalInputEnd();
   } else if(id == "racStartTimeCal") {
      UpdateRacCalInputStart();
   } else if(id == "racEndTimeCal") {
      UpdateRacCalInputEnd();
   } else {
      UpdateCalInputStart();
      UpdateCalInputEnd();
	   UpdateHotelsCalInputStart();
	   UpdateHotelsCalInputEnd();
	   UpdateRacCalInputStart();
	   UpdateRacCalInputEnd();
	}
}

function UpdateCalInputStart() {
	if (document.flight_order_form.endTimeDay) {	
	   day = document.flight_order_form.startTimeDay.value-0;
	   year = document.flight_order_form.startTimeMon.value.substring(0,4);
	   month = document.flight_order_form.startTimeMon.value.substring(4,6);
	   if (document.getElementById('startTimeCal'))
	   	document.getElementById('startTimeCal').value = year + "-" + month + "-" + day;
	}
}

function UpdateCalInputEnd() {
	if (document.flight_order_form.endTimeDay) {	
	   day = document.flight_order_form.endTimeDay.value-0;
	   year = document.flight_order_form.endTimeMon.value.substring(0,4);
	   month = document.flight_order_form.endTimeMon.value.substring(4,6);
	   if (document.getElementById('endTimeCal'))
	   	document.getElementById('endTimeCal').value = year + "-" + month + "-" + day;
	}
}
function UpdateHotelsCalInput() {
   UpdateHotelsCalInputStart();
   UpdateHotelsCalInputEnd();
}

function UpdateHotelsCalInputStart() {
	if (document.flight_order_form.hotelsStartTimeDay) {	
	   day = document.flight_order_form.hotelsStartTimeDay.value-0;
	   year = document.flight_order_form.hotelsStartTimeMon.value.substring(0,4);
	   month = document.flight_order_form.hotelsStartTimeMon.value.substring(4,6);
	   if (document.getElementById('hotelsStartTimeCal'))
	   	document.getElementById('hotelsStartTimeCal').value = year + "-" + month + "-" + day;
	//alert(document.getElementById('hotelsStartTimeCal'));
	//alert(document.getElementById('hotelsStartTimeCal').value);
	}
}

function UpdateHotelsCalInputEnd() {
	if (document.flight_order_form.hotelsEndTimeDay) {	
	   day = document.flight_order_form.hotelsEndTimeDay.value-0;
	   year = document.flight_order_form.hotelsEndTimeMon.value.substring(0,4);
	   month = document.flight_order_form.hotelsEndTimeMon.value.substring(4,6);
	   if (document.getElementById('hotelsEndTimeCal'))
	   	document.getElementById('hotelsEndTimeCal').value = year + "-" + month + "-" + day;
	}
}
function UpdateRacCalInput() {
   UpdateRacCalInputStart();
   UpdateRacCalInputEnd();
}

function UpdateRacCalInputStart() {
	if (document.flight_order_form.racStartTimeDay) {
	   day = document.flight_order_form.racStartTimeDay.value-0;
	   year = document.flight_order_form.racStartTimeMon.value.substring(0,4);
	   month = document.flight_order_form.racStartTimeMon.value.substring(4,6);
	   if (document.getElementById('racStartTimeCal'))
	   	document.getElementById('racStartTimeCal').value = year + "-" + month + "-" + day;
	}
}

function UpdateRacCalInputEnd() {
	if (document.flight_order_form.racEndTimeDay) {
	   day = document.flight_order_form.racEndTimeDay.value-0;
	   year = document.flight_order_form.racEndTimeMon.value.substring(0,4);
	   month = document.flight_order_form.racEndTimeMon.value.substring(4,6);
//alert(document.getElementById('racEndTimeCal').value);
//alert('... setting to: '+day);
	   if (document.getElementById('racEndTimeCal'))
	   	document.getElementById('racEndTimeCal').value = year + "-" + month + "-" + day;
	}
}