// Title: Tigra Calendar
// Description: See the demo at url
// URL: http://www.softcomplex.com/products/tigra_calendar/
// Version: 3.0 (European date format)
// Date: 06-20-2002 (mm-dd-yyyy)
// Author: Denis Gritcyuk <denis@softcomplex.com>
// 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
// About us: Our company provides offshore IT consulting services.
//    Contact us at sales@softcomplex.com if you have any programming task you
//    want to be handled by professionals. Our typical hourly rate is $20.

// 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 calendar1(obj_target, target_data) {

	// assing methods
	this.target_data = target_data;
	this.gen_date = cal_gen_date1;
	this.gen_time = cal_gen_time1;
	this.gen_tsmp = cal_gen_tsmp1;
	this.prs_date = cal_prs_date1;
	this.my_prs_date = my_cal_prs_date1;
	this.prs_time = cal_prs_time1;
	this.my_prs_time = my_cal_prs_time1;
	this.prs_tsmp = cal_prs_tsmp1;
	this.chk_date = check_date_time;
	this.my_chk_date = my_check_date_time;
	this.popup    = cal_popup1;

	// 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");
	if (obj_target.indexOf("-- :") > -1) { obj_target = ""; }
	this.target = obj_target;
	this.time_comp = BUL_TIMECOMPONENT;
	this.year_scroll = BUL_YEARSCROLL;
	
	// register in global collections
	this.id = calendars.length;
	calendars[this.id] = this;
}

function cal_popup1 (str_datetime) {
	this.dt_current = this.prs_tsmp(str_datetime ? str_datetime : this.target);
	if (!this.dt_current) return;
	var obj_calwindow = window.open(
		'/include/calendar/calendar.html?datetime=' + this.dt_current.valueOf()+ '&id=' + this.id + '&target_data=' + this.target_data,
		'Calendar', 'width=200,height='+(this.time_comp ? 215 : 190)+
		',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_tsmp1 (dt_datetime) {
	return(this.gen_date(dt_datetime) + ' ' + this.gen_time(dt_datetime));
}

// date generating function
function cal_gen_date1 (dt_datetime) {
	return (
		(dt_datetime.getDate() < 10 ? '0' : '') + dt_datetime.getDate() + "-"
		+ (dt_datetime.getMonth() < 9 ? '0' : '') + (dt_datetime.getMonth() + 1) + "-"
		+ dt_datetime.getFullYear()
	);
}

// time generating function
function cal_gen_time1 (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())
	);
}

// My check date
function my_check_date_time (str_datetime) {
        var arr_datetime = str_datetime.split(' ');
        if(!this.my_prs_time(arr_datetime[1], this.my_prs_date(arr_datetime[0]))) {
                //this.target.value='';
                return false;
        }
        return true;
}

// My check date
function check_date_time (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(' ');
        if(!this.prs_time(arr_datetime[1], this.prs_date(arr_datetime[0]))) {
		//this.target.value='';
		return false;
	} 
	return true;
}

// timestamp parsing function
function cal_prs_tsmp1 (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 my_cal_prs_date1 (str_date) {
 
        var arr_date = str_date.split('-');
        if (arr_date.length != 3) return cal_error ("Formato non valido: '" + str_date + "'.\n\nFormato accettato: gg-mm-aaaa ora:min.");
        if (!arr_date[0]) return cal_error ("Formato non valido: '" + str_date + "'.\n\nGiorno del mese non valido.");
        if (!RE_NUM.exec(arr_date[0])) return cal_error ("Giorno del mese non valido: '" + arr_date[0] + "'.\n\nInserire un numero intero (1..31).");
        if (!arr_date[1]) return cal_error ("Formato non valido: '" + str_date + "'.\n\nMese non valido.");
        if (!RE_NUM.exec(arr_date[1])) return cal_error ("Mese non valido: '" + arr_date[1] + "'.\n\nInserire un numero intero (1..12).");
        if (!arr_date[2]) return cal_error ("Formato non valido: '" + str_date + "'.\n\nAnno non valido.");
        if (!RE_NUM.exec(arr_date[2])) return cal_error ("Anno non valido: '" + arr_date[2] + "'.\n\nInserire un numero intero.");
 
        if (arr_date[1] < 1 || arr_date[1] > 12) return cal_error ("Mese non valido: '" + arr_date[1] + "'.\n\nInserire un numero intero (1..12).");
 
        if (arr_date[2] < 100) arr_date[2] = Number(arr_date[2]) + (arr_date[2] < NUM_CENTYEAR ? 2000 : 1900);
 
        var dt_numdays = new Date(arr_date[2], arr_date[1], 0);
        if (arr_date[0] < 1 || arr_date[0] > dt_numdays.getDate()) return cal_error ("Giorno del mese non valido: '" +
arr_date[0] + "'.\n\nInserire un numero intero  (1.."+dt_numdays.getDate()+").");
        
        var dt_date = new Date(arr_date[2], arr_date[1]-1, arr_date[0]);
 
        return (dt_date)
}

// date parsing function
function cal_prs_date1 (str_date) {

	var arr_date = str_date.split('-');
	/*if (arr_date.length != 3) return cal_error ("Formato non valido: '" + str_date + "'.\n\nFormato accettato: gg-mm-aaaa ora:min.");
	if (!arr_date[0]) return cal_error ("Formato non valido: '" + str_date + "'.\n\nGiorno del mese non valido.");
	if (!RE_NUM.exec(arr_date[0])) return cal_error ("Giorno del mese non valido: '" + arr_date[0] + "'.\n\nInserire un numero intero (1..31).");
	if (!arr_date[1]) return cal_error ("Formato non valido: '" + str_date + "'.\n\nMese non valido.");
	if (!RE_NUM.exec(arr_date[1])) return cal_error ("Mese non valido: '" + arr_date[1] + "'.\n\nInserire un numero intero (1..12).");
	if (!arr_date[2]) return cal_error ("Formato non valido: '" + str_date + "'.\n\nAnno non valido.");
	if (!RE_NUM.exec(arr_date[2])) return cal_error ("Anno non valido: '" + arr_date[2] + "'.\n\nInserire un numero intero.");

	if (arr_date[1] < 1 || arr_date[1] > 12) return cal_error ("Mese non valido: '" + arr_date[1] + "'.\n\nInserire un numero intero (1..12).");
	 
	if (arr_date[2] < 100) arr_date[2] = Number(arr_date[2]) + (arr_date[2] < NUM_CENTYEAR ? 2000 : 1900);

	var dt_numdays = new Date(arr_date[2], arr_date[1], 0);
	if (arr_date[0] < 1 || arr_date[0] > dt_numdays.getDate()) return cal_error ("Giorno del mese non valido: '" + arr_date[0] + "'.\n\nInserire un numero intero  (1.."+dt_numdays.getDate()+").");
	*/
	var dt_date = new Date(arr_date[2], arr_date[1]-1, arr_date[0]);

	return (dt_date)
}


// time parsing function
function my_cal_prs_time1 (str_time, dt_date) {
 
        if (!dt_date) return null;
        var arr_time = String(str_time ? str_time : '').split(':');
 
	if (arr_time.length < 2) return cal_error ("Formato non valido: '" + str_time + "'.\n\nFormato accettato: ora:min.");
	if (!arr_time[0]) return cal_error ("Formato non valido: '" + str_time + "'.\n\nOra non valida.");
	if (!RE_NUM.exec(arr_time[0])) return cal_error ("Ora non valida: '" + arr_time[0] + "'.\n\nInserire un numero intero (1..23).");
	if (!arr_time[1]) return cal_error ("Formato non valido: '" + str_time + "'.\n\nMinuti non validi.");
	if (!RE_NUM.exec(arr_time[0])) return cal_error ("Minuti non valida: '" + arr_time[1] + "'.\n\nInserire un numero intero (0..59).");

        dt_date.setMilliseconds(0);
        return dt_date;
}

// time parsing function
function cal_prs_time1 (str_time, dt_date) {

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

	/*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;
}