// Title: Tigra Calendar
// URL: http://www.softcomplex.com/products/tigra_calendar/
// Version: 3.2 (American date format)
// Date: 10/14/2002 (mm/dd/yyyy)
// Feedback: feedback@softcomplex.com (specify product title in the subject)
// 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.
//
//    $Id$

// 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+$/;
var separatordate = '/'
function calendar2(obj_target) {

	// assing methods
	this.gen_date = cal_gen_date2;
	this.gen_time = cal_gen_time2;
	this.gen_tsmp = cal_gen_tsmp2;
	this.prs_date = cal_prs_date2;
	this.prs_time = cal_prs_time2;
	this.prs_tsmp = cal_prs_tsmp2;
	this.popup    = cal_popup2;
	this.cal_setdate = cal_setdate;
	this.cal_clearDataTime = cal_clearDataTime;
	
	// 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 tardet control");
	this.target = obj_target;
	this.time_comp = BUL_TIMECOMPONENT;
	this.year_scroll = BUL_YEARSCROLL;
	this.fdisplay = "MMM, d yyyy";
	this.fdata = "yyyy-mm-dd";
	// register in global collections
	this.id = calendars.length;
	calendars[this.id] = this;
}
function showCalendar(e,separetor,fdisplay,fdata){				
    calendar = new calendar2(e);		
    if(fdisplay) calendar.fdisplay = fdisplay
	if(fdata) calendar.fdata = fdata;	
    calendar.year_scroll = true;
    calendar.time_comp = false;
    calendar.popup();		    
    
}
function isValidTime(value) {
   var hasMeridian = false;      
   var re = /^\d{1,2}[:]\d{2}([:]\d{2})?( [aApP][mM]?)?$/;
   if (!re.test(value)) { return false; }
   if (value.toLowerCase().indexOf("p") != -1) { hasMeridian = true; }
   if (value.toLowerCase().indexOf("a") != -1) { hasMeridian = true; }
   var values = value.split(":");
   if ( (parseFloat(values[0]) < 0) || (parseFloat(values[0]) > 23) ) { return false; }
   if (hasMeridian) {
      if ( (parseFloat(values[0]) < 1) || (parseFloat(values[0]) > 12) ) { return false; }
   }
   if ( (parseFloat(values[1]) < 0) || (parseFloat(values[1]) > 59) ) { return false; }
   if (values.length > 2) {
      if ( (parseFloat(values[2]) < 0) || (parseFloat(values[2]) > 59) ) { return false; }
   }
   return true;
}

function validTime(e,separetor,fdisplay,fdata){	
	var ed = document.getElementById(e.id + "_display");
	var timeData = new Date(getDateFromFormat(e.value+"",fdata));	
	if (!isValidTime(ed.value)){
		ed.value = formatDate(timeData,fdisplay);
		alert("INVALID data!!!");
		return false
	}		
	try{	
		var timeNew = new Date(getDateFromFormat(ed.value,fdisplay));			
		timeData.setHours(timeNew.getHours(),timeNew.getMinutes(),timeNew.getSeconds(),timeNew.getMilliseconds())
		e.value = formatDate(timeData,fdata)		
		if(ed) ed.value = formatDate(timeData,fdisplay)		
	} catch(e){
		alert("INVALID data!!!");
		//ed.value = formatDate(new Date(getDateFromFormat(e.value,fdata),fdisplay)
	}	
	return true;
}
function cal_clearDataTime(){
    this.target.value = ""
	e = document.getElementById(this.target.id + "_display");
	if(e)
		e.value = "";
	if (window.onChangeDate) window.onChangeDate(this.target.id);
}
function cal_setdate(date){
	var x = getDateFromFormat(date,"MM/dd/yyyy")	
	this.target.value = formatDate(new Date(x),this.fdata)
	e = document.getElementById(this.target.id + "_display");
	if(e)
		e.value = formatDate(new Date(date),this.fdisplay)	
	if (window.onChangeDate) window.onChangeDate(this.target.id);
}
function cal_popup2 (str_datetime) {		
	this.dt_current = this.prs_tsmp(str_datetime ? str_datetime : this.target.value.length > 0 ? formatDate(new Date(getDateFromFormat(this.target.value,this.fdata)),'MM/dd/yyyy'):"");	
	if (!this.dt_current) return;
	/*
  openPopupFocus('calendar.html?datetime=' + this.dt_current.valueOf()+ '&id=' + this.id, 
            "Calendar", 198, 300, 'width=198,height='+(this.time_comp ? 215 : 153)+
		',toolbar=no,status=no,directories=no,menubar=no,resizable=yes,scrollable=no',true, true);
		*/
	LangToUseId = (window.__LangToUseId)? window.__LangToUseId : 'en';	
  this.strdate = this.dt_current
  	var obj_calwindow = window.open(
		'calendar.psp?appkey='+__appkey+'&LangToUseId='+LangToUseId+'&datetime=' + this.dt_current.valueOf()+ '&id=' + this.id,
		'Calendar', 'width=198,height='+(this.time_comp ? 365 : 190)+ /* changed this to 190 to allow 6 week months to fit */
		',status=no,statusbar=no,resizable=no,top=200,left=300,dependent=yes,alwaysRaised=yes'
	);
	obj_calwindow.opener = window;
	obj_calwindow.focus();
	
}

// timestamp generating function
function cal_gen_tsmp2 (dt_datetime) {
	return(this.gen_date(dt_datetime) + ' ' + this.gen_time(dt_datetime));
}

// date generating function
function cal_gen_date2 (dt_datetime) {
	return (
		(dt_datetime.getMonth() < 9 ? '0' : '') + (dt_datetime.getMonth() + 1) + "/"
		+ (dt_datetime.getDate() < 10 ? '0' : '') + dt_datetime.getDate() + "/"
		+ dt_datetime.getFullYear()
	);
}
// time generating function
function cal_gen_time2 (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_tsmp2 (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_date2 (str_date) {
	
	var arr_date = str_date.split(separatordate);

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

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

	if (arr_date[0] < 1 || arr_date[0] > 12) return alert ("Invalid month value: '" + arr_date[0] + "'.\nAllowed range is 01-12.");
	dt_date.setMonth(arr_date[0]-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[0], 0);
	dt_date.setDate(arr_date[1]);
	if (dt_date.getMonth() != (arr_date[0]-1)) return alert ("Invalid day of month value: '" + arr_date[1] + "'.\nAllowed range is 01-"+dt_numdays.getDate()+".");

	return (dt_date)
}

// time parsing function
function cal_prs_time2 (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;
}