// Title: Tigra Calendar
// URL: http://www.softcomplex.com/products/tigra_calendar/
// Version: 3.3 (European date format)
// Date: 09/01/2005 (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 = false;

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

function calendar2(obj_day, obj_month_year, obj_pos)
{
	// assigning methods
	this.gen_date  = cal_gen_date1;
	this.gen_year  = cal_gen_year;
	this.gen_month = cal_gen_month;
	this.gen_day   = cal_gen_day;
	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.popupy     = cal_popup2;
//alert(obj_day);
//obj_day = 24;
//obj_month_year = 909;
//alert(obj_month_year);
	// validate input parameters
	//this.targetyear = obj_year;
	this.targetmonthyear = obj_month_year;
	this.targetday = obj_day;
	this.time_comp = BUL_TIMECOMPONENT;
	this.year_scroll = BUL_YEARSCROLL;
	
	// register in global collections
	this.id = calendars.length;
	this.objposid = obj_pos;
	calendars[this.id] = this;
}

function FinObjTop(obj)
{
	var curtop = 0;
	if (obj.offsetParent) 
	{
		do 
		{
			curtop += obj.offsetTop;

		} while (obj = obj.offsetParent);
		return curtop;
	}
}


function FinObjLeft(obj)
{
	var curleft = 0;
	if (obj.offsetParent) 
	{
		do 
		{
			curleft += obj.offsetLeft;

		} while (obj = obj.offsetParent);
		return curleft;
	}
}

function cal_popup1 (str_datetime) 
{
	var left = "";
	var top = "";
	var UserAgent = navigator.userAgent;
	if(this.objposid!= null)
	{
		var extra = "";
		var extra_min = "";
		if(navigator.appName == "Microsoft Internet Explorer")// IE
		{
			extra = 15;
			if(window.screenLeft>0)
				left = window.screenLeft+FinObjLeft(document.getElementById(this.objposid));
			else
				left = FinObjLeft(document.getElementById(this.objposid));
		
			if(window.screenTop>0)
				top = window.screenTop+500+extra;
			else
				top = FinObjTop(document.getElementById(this.objposid))+extra;
		}
		else // all major browsers, except Internet Explorer
		{
			if(UserAgent.search(/Chrome/)>0)//Google Chrome
			{
				extra = 105;
				extra_min = FinObjTop(document.getElementById(this.objposid))+extra+20;
			}
			else	
			{	
				extra = 180;
				extra_min = FinObjTop(document.getElementById(this.objposid))-40;
			}
		
			if(window.screenX>0)
				left = window.screenX+FinObjLeft(document.getElementById(this.objposid));
			else
				left = FinObjLeft(document.getElementById(this.objposid));
		
			if(window.screenY>0)
				top = window.screenY+extra_min;
			else
				top = FinObjTop(document.getElementById(this.objposid))+extra;
		}	
	}
	else
	{
		top = 200;
		left =200;
	}
	
	if (str_datetime) {
		this.dt_current = this.prs_tsmp(str_datetime);
	}
	else {
		this.dt_current = this.prs_tsmp(this.targetday.value+'-'+(parseInt(this.targetmonthyear.value / 100))+'-'+(this.targetmonthyear.value % 100));
		this.dt_selected = this.dt_current;
	}
	if (!this.dt_current) return;

	var obj_calwindow = window.open(
		'../../../../calendar2.html?datetime=' + this.dt_current.valueOf()+ '&id=' + this.id,
		'Calendar', 'width=200,height='+(this.time_comp ? 215 : 190)+
		',status=no,resizable=no,top='+top+',left='+left+',dependent=yes,alwaysRaised=yes'
	);
	obj_calwindow.opener = window;
	obj_calwindow.focus();
}
function cal_popup2 (x,str_datetime)
{
	var left = "";
	var top = "";
	var UserAgent = navigator.userAgent;
	if(this.objposid!= null)
	{
		var extra = "";
		var extra_min = "";
		if(navigator.appName == "Microsoft Internet Explorer")// IE
		{
			extra = 15;
			if(window.screenLeft>0)
				left = window.screenLeft+FinObjLeft(document.getElementById(this.objposid));
			else
				left = FinObjLeft(document.getElementById(this.objposid));
		
			if(window.screenTop>0)
				top = window.screenTop+500+extra;
			else
				top = FinObjTop(document.getElementById(this.objposid))+extra;
		}
		else // all major browsers, except Internet Explorer
		{
			if(UserAgent.search(/Chrome/)>0)//Google Chrome
			{
				extra = 105;
				extra_min = FinObjTop(document.getElementById(this.objposid))+extra+20;
			}
			else	
			{	
				extra = 180;
				extra_min = FinObjTop(document.getElementById(this.objposid))-40;
			}
		
			if(window.screenX>0)
				left = window.screenX+FinObjLeft(document.getElementById(this.objposid));
			else
				left = FinObjLeft(document.getElementById(this.objposid));
		
			if(window.screenY>0)
				top = window.screenY+extra_min;
			else
				top = FinObjTop(document.getElementById(this.objposid))+extra;
		}	
	}
	else
	{
		top = 200;
		left =200;
	}
	
	if (str_datetime) {
		this.dt_current = this.prs_tsmp(str_datetime);
	}
	else {
		this.dt_current = this.prs_tsmp(this.targetday.value+'-'+(parseInt(this.targetmonthyear.value / 100))+'-'+(this.targetmonthyear.value % 100));
		this.dt_selected = this.dt_current;
	}
	if (!this.dt_current) return;

	var obj_calwindow = window.open(
		'calendar2.html?datetime=' + this.dt_current.valueOf()+ '&id=' + this.id+ '&x=' + x,
		'Calendar', 'width=200,height='+(this.time_comp ? 215 : 190)+
		',status=no,resizable=no,top='+top+',left='+left+',dependent=yes,alwaysRaised=yes'
	);
	//alert(obj_calwindow);
	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()
	);
}
function cal_gen_year(dt_datetime) 
{
	return (dt_datetime.getFullYear());
}
function cal_gen_month(dt_datetime) 
{
	return (dt_datetime.getMonth() + 1);
}
function cal_gen_day(dt_datetime) 
{
	return (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
	//alert(str_datetime);
	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 = str_date.split('-');

	if (arr_date.length != 3) return cal_error ("Invalid date format: '" + str_date + "'.\nFormat accepted is dd-mm-yyyy.");
	if (!arr_date[0]) return cal_error ("Invalid date format: '" + str_date + "'.\nNo day of month value can be found.");
	if (!RE_NUM.exec(arr_date[0])) return cal_error ("Invalid day of month value: '" + arr_date[0] + "'.\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[2]) return cal_error ("Invalid date format: '" + str_date + "'.\nNo year value can be found.");
	if (!RE_NUM.exec(arr_date[2])) return cal_error ("Invalid year value: '" + arr_date[2] + "'.\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[2] < 100) arr_date[2] = Number(arr_date[2]) + (arr_date[2] < NUM_CENTYEAR ? 2000 : 1900);
	dt_date.setFullYear(arr_date[2]);

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