// Title: Tigra Calendar
// URL: http://www.softcomplex.com/products/tigra_calendar/
// Version: 3.2 (European date format)
// Date: 10/14/2002 (mm/dd/yyyy)
// 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+$/;

//variables for holding images of calendar icon
//are set on first call to cal_init
var bInitiated = false;
var imgActive = null;
var imgDisabled = null;

function calendar1(obj_target) {

        // assigning methods
        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.prs_time = cal_prs_time1;
        this.prs_tsmp = cal_prs_tsmp1;
        this.popup    = cal_popup1;
        this.activate = cal_activate1;//function for disabling/enabling
        this.active   = true;//variable usefull for the above function
        //this.url_cal  = 'http://www.eurosite.ro/'; //- set by the calling script
        //this.url_img  = 'http://www.eurosite.ro/images/'; //- set by the calling script
        this.init     = cal_init;
        this.debug    = false;
        this.img	  = 0;//img object

        // 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;
        this.language = 'EN';
        this.rezType = 1; //tipul de input ptr. care se vrea rezultatul, 1 este text, 2 reprez 3 selecturi
        this.format = 0; //0: mysql [yyyy-mm-dd], 1: romanian [dd.mm.yyyy]
        this.selDay = null; //inputurile de tip select
        this.selMonth = null;
        this.selYear = null;
        this.dmy_date = '00.00.0000';//data in format d.m.Y
	    this.minYear = '2004';
	    this.maxYear = '2010';

        // register in global collections
        this.id = calendars.length;
        calendars[this.id] = this;
		//alert(calendars[1] + " " + calendars[2] + " " + this.language);
}

function cal_init(){
	//setting images if needed
	if (!bInitiated){
		bInitiated = true;
		imgActive = new Image;
		imgActive.src = this.url_img + 'cal.gif';
		imgDisabled = new Image;
		imgDisabled.src = this.url_img + 'cal_disabled.gif';
	}

	//numai pentru calendarul din 3 selecturi de aici in colo
	if (this.rezType != 2)
		return;

	var ARR_MONTHS = new Array(
	    new Array('Ian','Feb','Mar','Apr','Mai','Iun','Iul','Aug','Sep','Oct','Noi','Dec'),
	    new Array('Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec'),
	    new Array('Jan','Feb','Mär','Apr','Mai','Jun','Jul','Aug','Sep','Okt','Nov','Dez')
	);

	switch (this.language) {
		case 'DE': lIndex = 2; break;
		case 'EN': lIndex = 1; break;
		default: lIndex = 0;
	}

    a_date = this.dmy_date.split('.');//d.m.Y

	//day
	for (i=1; i<=31; i++) {
		v = (i<10)? ('0'+i):(''+i);
		this.selDay.options[i-1] = new Option(v)
		this.selDay.options[i-1].value = v;
	}
	this.selDay.value = a_date[0];

    //month
	for (i=1; i<=12; i++) {
		v = (i<10)? ('0'+i):(''+i);
        this.selMonth.options[i-1] = new Option(ARR_MONTHS[lIndex][i-1])
        this.selMonth.options[i-1].value = v;
	}
    this.selMonth.value = a_date[1];

	//year
	for (v=this.minYear, i=0; v<=this.maxYear; v++, i++){
        this.selYear.options[i] = new Option(v)
        this.selYear.options[i].value = v;
	}
    this.selYear.value = a_date[2];
}

function cal_popup1 (str_datetime) {
		if (!this.active)
			return;

        if (!str_datetime && this.rezType == 2) {
                //iau data din select
                str_datetime = this.selYear.value+"-"+this.selMonth.value+"-"+this.selDay.value;
        }
        //alert(str_datetime+" - "+this.rezType);

        this.dt_current = this.prs_tsmp(str_datetime ? str_datetime : this.target.value);
        if (!this.dt_current) return;

        winHeight = (this.time_comp ? 210 : 205); //215:190
        winWidth = 220;
        winTop 	= (screen.height - winHeight ) / 2;
        winLeft = (screen.width - winWidth ) / 2;
        var obj_calwindow = window.open(this.url_cal +
                'show_cal.html?datetime=' + this.dt_current.valueOf()+ '&id=' + this.id,
                'Calendar', 'width='+winWidth+',height='+winHeight+
                ',status=no,resizable=no,top='+winTop+',left='+winLeft+',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));
}

function cal_activate1(bActive){
	this.active = bActive;

	if (this.rezType == 1){
		//text
		this.target.readOnly = (bActive)? false : true;
		this.target.style.backgroundColor = (bActive)? "":"#C0C0C0";
	}
	else {
		//3 selects
        this.selDay.disabled = (bActive)? false : true;
		this.selDay.style.backgroundColor = (bActive)? "":"#C0C0C0";
        this.selMonth.disabled = (bActive)? false : true;
		this.selMonth.style.backgroundColor = (bActive)? "":"#C0C0C0";
        this.selYear.disabled = (bActive)? false : true;
		this.selYear.style.backgroundColor = (bActive)? "":"#C0C0C0";
	}

	//image
	this.img.src = (bActive)? imgActive.src : imgDisabled.src;
}

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

// 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 cal_prs_date1 (str_date) {

        var arr_date = (this.format)? str_date.split('.') : str_date.split('-');
        var i_an = (this.format)? 2 : 0;
        var i_zi = (this.format)? 0 : 2;

        if (arr_date.length != 3) return cal_error ("Invalid date format: '" + str_date + "'.\nFormat accepted is " + ((this.format)? "dd.mm.yyyy":"yyyy-mm-dd."));
        if (!arr_date[i_zi]) return cal_error ("Invalid date format: '" + str_date + "'.\nNo day of month value can be found.");
        if (!RE_NUM.exec(arr_date[2])) return cal_error ("Invalid day of month value: '" + arr_date[2] + "'.\nAllowed values are unsigned integers.");
        if (!arr_date[1]) return cal_error ("Invalid date format: '" + str_date + "'.\nNo month value can be found.");
        if (!RE_NUM.exec(arr_date[1])) return cal_error ("Invalid month value: '" + arr_date[1] + "'.\nAllowed values are unsigned integers.");
        if (!arr_date[i_an]) return cal_error ("Invalid date format: '" + str_date + "'.\nNo year value can be found.");
        if (!RE_NUM.exec(arr_date[0])) return cal_error ("Invalid year value: '" + arr_date[0] + "'.\nAllowed values are unsigned integers.");

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

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

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

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

        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[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;
}