// <!-- <![CDATA[

// Project: Dynamic Date Selector (DtTvB) - 2006-03-16
// Script featured on JavaScript Kit- http://www.javascriptkit.com
// Code begin...
// Set the initial date.
var ds_i_date = new Date();
ds_c_month = ds_i_date.getMonth() + 1;
ds_c_year = ds_i_date.getFullYear();
var brother_date= new Date();
var relation = '';
var control_interval = 'No';
var no_past_days = 'No';

function Calendar_Field(GEBI,Action){
	if(Action=='Select'){
		GEBI.style.borderColor='#00CC00';
		GEBI.style.borderWidth='2px';
		GEBI.style.backgroundColor='#C9E9C5';
	}else{
		GEBI.style.borderColor='#999999';
		GEBI.style.borderWidth='1px';
		GEBI.style.backgroundColor='#FFFFCC';
	}
}

// Get Element By Id
function ds_getel(id) {
	return document.getElementById(id);
}

// Get the left and the top of the element.
function ds_getleft(el) {
	var tmp = el.offsetLeft;
	el = el.offsetParent
	while(el) {
		tmp += el.offsetLeft;
		el = el.offsetParent;
	}
	return tmp;
}
function ds_gettop(el) {
	var tmp = el.offsetTop;
	el = el.offsetParent
	while(el) {
		tmp += el.offsetTop;
		el = el.offsetParent;
	}
	return tmp;
}

// Output Element
var ds_oe = ds_getel('ds_calclass');
// Container
var ds_ce = ds_getel('ds_conclass');

// Output Buffering
var ds_ob = ''; 
function ds_ob_clean() {
	ds_ob = '';
}
function ds_ob_flush() {
	ds_oe.innerHTML = ds_ob;
	ds_ob_clean();
}
function ds_echo(t) {
	ds_ob += t;
}

var ds_element; // Text Element...

var ds_monthnames = [
'JANUARY', 'FEBRUARY', 'MARCH', 'APRIL', 'MAY', 'JUNE',
'JULY', 'AUGUST', 'SEPTEMBER', 'OCTOBER', 'NOVEMBER', 'DECEMBER'
]; // You can translate it for your language.

var ds_daynames = [
'Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'sat'
]; // You can translate it for your language.

// Calendar template
function ds_template_main_above(t) {
	return '<div class="ds_tbl">'
	    	 + '<div class="ds_Buton" >'
		 		+ '<div class="bt_Arrow" style="cursor: pointer" onclick="ds_py();"><img src="./API/S@Engine/Theme/Classic/Img/Form/Calendar/Arrow_Left_l.png" /></div>'
		 		+ '<div class="bt_Arrow" style="cursor: pointer" onclick="ds_pm();"><img src="./API/S@Engine/Theme/Classic/Img/Form/Calendar/Arrow_Left.png" /></div>'
		 		+ '<div class="ds_head" style="cursor: pointer" onclick="ds_hi();" colspan="3">[Close]</div>'
		 		+ '<div class="bt_Arrow" style="cursor: pointer" onclick="ds_nm();"><img src="./API/S@Engine/Theme/Classic/Img/Form/Calendar/Arrow_Right.png" /></div>'
		 		+ '<div class="bt_Arrow" style="cursor: pointer" onclick="ds_ny();"><img src="./API/S@Engine/Theme/Classic/Img/Form/Calendar/Arrow_Right_r.png" /></div>'
		 	+ '</div>'
	     	+ '<div>'
		 		+ '<div colspan="7" class="ds_Month">' + t + '</div>'
		 	+ '</div>'
		 + '<div>';
}

function ds_template_day_row(t) {
	return '<div class="ds_day">' + t + '</div>';
	// Define width in CSS, XHTML 1.0 Strict doesn't have width property for it.
}

function ds_template_new_week() {
	return '</div><div>';
}

function ds_template_blank_cell(colspan) {
	return '<div style="width:'+(colspan*40)+'px; float:left; height:20px;" >&nbsp;</div>'
}

function ds_template_day(d, m, y) {
	
	var today = new Date();
	today.setDate(today.getDate()-1);
	var t_day = new Date(y,m-1,d);
	var retorno;
	
	if(no_past_days=='No'){
		retorno= '<div class="ds_cell" onclick="ds_onclick(' + d + ',' + m + ',' + y + ')">' + d + '</div>';
	}else{
	
	
		if(control_interval=='No'){
			if(t_day>=today){
				retorno= '<div class="ds_cell" onclick="ds_onclick(' + d + ',' + m + ',' + y + ')">' + d + '</div>';
			}else{
				retorno= '<div class="ds_cell_blocked">' + d + '</div>';
			}
		}else{
			if((relation == 'arrive')){
				if((brother_date>t_day)&&(t_day>=today)){
					retorno= '<div class="ds_cell" onclick="ds_onclick(' + d + ',' + m + ',' + y + ')">' + d + '</div>';
				}else{
					retorno= '<div class="ds_cell_blocked">' + d + '</div>';
				}
			}else{
				if((brother_date<t_day)&&(t_day>=today)){
					retorno= '<div class="ds_cell" onclick="ds_onclick(' + d + ',' + m + ',' + y + ')">' + d + '</div>';
				}else{
					retorno= '<div class="ds_cell_blocked">' + d + '</div>';
				}
			}
		}
		if(control_interval=='Yes'){
			if((brother_date.getDate()==t_day.getDate())&&(brother_date.getMonth()==t_day.getMonth())&&(brother_date.getFullYear()==t_day.getFullYear())){
				retorno= '<div class="ds_cell_blocked">' + d + '</div>';
			}
		}
	
	}
	

	return retorno;

	// Define width the day row.
}

function ds_template_main_below() {
	return '</div>'
	     + '</div>';
}

// This one draws calendar...
function ds_draw_calendar(m, y) {
	// First clean the output buffer.
	ds_ob_clean();
	// Here we go, do the header
	ds_echo (ds_template_main_above(ds_monthnames[m - 1] + ' ' + y));
	for (i = 0; i < 7; i ++) {
		ds_echo (ds_template_day_row(ds_daynames[i]));
	}
	// Make a date object.
	var ds_dc_date = new Date();
	ds_dc_date.setMonth(m - 1);
	ds_dc_date.setFullYear(y);
	ds_dc_date.setDate(1);
	if (m == 1 || m == 3 || m == 5 || m == 7 || m == 8 || m == 10 || m == 12) {
		days = 31;
	} else if (m == 4 || m == 6 || m == 9 || m == 11) {
		days = 30;
	} else {
		days = (y % 4 == 0) ? 29 : 28;
	}
	var first_day = ds_dc_date.getDay();
	var first_loop = 1;
	// Start the first week
	ds_echo (ds_template_new_week());
	// If sunday is not the first day of the month, make a blank cell...
	if (first_day != 0) {
		ds_echo (ds_template_blank_cell(first_day));
	}
	var j = first_day;
	for (i = 0; i < days; i ++) {
		// Today is sunday, make a new week.
		// If this sunday is the first day of the month,
		// we've made a new row for you already.
		if (j == 0 && !first_loop) {
			// New week!!
			ds_echo (ds_template_new_week());
		}
		// Make a row of that day!
		ds_echo (ds_template_day(i + 1, m, y));
		// This is not first loop anymore...
		first_loop = 0;
		// What is the next day?
		j ++;
		j %= 7;
	}
	// Do the footer
	ds_echo (ds_template_main_below());
	// And let's display..
	ds_ob_flush();
	// Scroll it into view.
	//ds_ce.scrollIntoView();
}

// A function to show the calendar.
// When user click on the date, it will set the content of t.
function ds_sh(t, brother, rel, nopastdays) {
	no_past_days = nopastdays;

	if(brother!=''){
		brother_date.setDate(brother.substring(0,2)); 
		brother_date.setMonth(brother.substring(3,5)); 
		brother_date.setMonth(brother_date.getMonth()-1);
		brother_date.setFullYear(brother.substring(6,10)); 

		relation = rel;
		control_interval = 'Yes';
		

	}else{
		control_interval = 'No';
	}
	
	if(ds_element){
		Calendar_Field(ds_element,'UnSelect');
	}
	Calendar_Field(t,'Select');
	
	// Set the element to set...
	ds_element = t;
	// Make a new date, and set the current month and year.
	var ds_sh_date = new Date();
	
	//Aqui indicamos el mes de partida. Dependera de si es un calendario chained o no.
	if(brother!=''){
		ds_c_month = brother.substring(3,5);
		ds_c_year = brother.substring(6,10);
	}else{
		ds_c_month = ds_sh_date.getMonth() + 1;
		ds_c_year = ds_sh_date.getFullYear();
	}
	// Draw the calendar
	ds_draw_calendar(ds_c_month, ds_c_year);
	// To change the position properly, we must show it first.
	ds_ce.style.display = '';
	// Move the calendar container!
	the_left = ds_getleft(t);
	the_top = ds_gettop(t) + t.offsetHeight;
	ds_ce.style.left = the_left + 'px';
	ds_ce.style.top = the_top + 'px';
	// Scroll it into view.
	//ds_ce.scrollIntoView();
}

// Hide the calendar.
function ds_hi() {
	ds_ce.style.display = 'none';
	Calendar_Field(ds_element,'UnSelect');
}

// Moves to the next month...
function ds_nm() {
	// Increase the current month.
	ds_c_month ++;
	// We have passed December, let's go to the next year.
	// Increase the current year, and set the current month to January.
	if (ds_c_month > 12) {
		ds_c_month = 1; 
		ds_c_year++;
	}
	// Redraw the calendar.
	ds_draw_calendar(ds_c_month, ds_c_year);
}

// Moves to the previous month...
function ds_pm() {
	ds_c_month = ds_c_month - 1; // Can't use dash-dash here, it will make the page invalid.
	// We have passed January, let's go back to the previous year.
	// Decrease the current year, and set the current month to December.
	if (ds_c_month < 1) {
		ds_c_month = 12; 
		ds_c_year = ds_c_year - 1; // Can't use dash-dash here, it will make the page invalid.
	}
	// Redraw the calendar.
	ds_draw_calendar(ds_c_month, ds_c_year);
}

// Moves to the next year...
function ds_ny() {
	// Increase the current year.
	ds_c_year++;
	// Redraw the calendar.
	ds_draw_calendar(ds_c_month, ds_c_year);
}

// Moves to the previous year...
function ds_py() {
	// Decrease the current year.
	ds_c_year = ds_c_year - 1; // Can't use dash-dash here, it will make the page invalid.
	// Redraw the calendar.
	ds_draw_calendar(ds_c_month, ds_c_year);
}

// Format the date to output.
function ds_format_date(d, m, y) {
	// 2 digits month.
	m2 = '00' + m;
	m2 = m2.substr(m2.length - 2);
	// 2 digits day.
	d2 = '00' + d;
	d2 = d2.substr(d2.length - 2);
	// YYYY-MM-DD
//	return y + '-' + m2 + '-' + d2;
	return d2 + '-' + m2 + '-' + y;
}

// When the user clicks the day.
function ds_onclick(d, m, y) {
	// Hide the calendar.
	ds_hi();
	// Set the value of it, if we can.
	if (typeof(ds_element.value) != 'undefined') {
		ds_element.value = ds_format_date(d, m, y);
	// Maybe we want to set the HTML in it.
	} else if (typeof(ds_element.innerHTML) != 'undefined') {
		ds_element.innerHTML = ds_format_date(d, m, y);
	// I don't know how should we display it, just alert it to user.
	} else {
		alert (ds_format_date(d, m, y));
	}
}

// And here is the end.

// ]]> -->