var ds_i_date = new Date();
ds_c_month = ds_i_date.getMonth() + 1;
ds_c_year = ds_i_date.getFullYear();

// 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;
}var ds_i_date=new Date();ds_c_month=ds_i_date.getMonth()+1;ds_c_year=ds_i_date.getFullYear();function ds_getel(id){return document.getElementById(id);}
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;}
var ds_oe=ds_getel('ds_calclass');var ds_ce=ds_getel('ds_conclass');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;var ds_monthnames=['Ocak','Şubat','Mart','Nisan','Mayıs','Haziran','Temmuz','Ağustos','Eylül','Ekim','Kasım','Aralık'];var ds_daynames=['Paz','Pzt','Sal','Çar','Per','Cum','Cmr'];function ds_template_main_above(t){return'<table cellpadding="3" cellspacing="1" class="ds_tbl">'
+'<tr>'
+'<td class="ds_head" style="cursor: pointer" onclick="ds_py();"><<</td>'
+'<td class="ds_head" style="cursor: pointer" onclick="ds_pm();"><</td>'
+'<td class="ds_head" style="cursor: pointer" onclick="ds_hi();" colspan="3">[KAPAT]</td>'
+'<td class="ds_head" style="cursor: pointer" onclick="ds_nm();">></td>'
+'<td class="ds_head" style="cursor: pointer" onclick="ds_ny();">>></td>'
+'</tr>'
+'<tr>'
+'<td colspan="7" class="ds_head">'+t+'</td>'
+'</tr>'
+'<tr>';}
function ds_template_day_row(t){return'<td class="ds_subhead">'+t+'</td>';}
function ds_template_new_week(){return'</tr><tr>';}
function ds_template_blank_cell(colspan){return'<td colspan="'+colspan+'"></td>'}
function ds_template_day(d,m,y){return'<td class="ds_cell" onclick="ds_onclick('+d+','+m+','+y+')">'+d+'</td>';}
function ds_template_main_below(){return'</tr>'
+'</table>';}
function ds_draw_calendar(m,y){ds_ob_clean();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]));}
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;ds_echo(ds_template_new_week());if(first_day!=0){ds_echo(ds_template_blank_cell(first_day));}
var j=first_day;for(i=0;i<days;i++){if(j==0&&!first_loop){ds_echo(ds_template_new_week());}
ds_echo(ds_template_day(i+1,m,y));first_loop=0;j++;j%=7;}
ds_echo(ds_template_main_below());ds_ob_flush();ds_ce.scrollIntoView();}
function ds_sh(t){ds_element=t;var ds_sh_date=new Date();ds_c_month=ds_sh_date.getMonth()+1;ds_c_year=ds_sh_date.getFullYear();ds_draw_calendar(ds_c_month,ds_c_year);ds_ce.style.display='';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';ds_ce.scrollIntoView();}
function ds_hi(){ds_ce.style.display='none';}
function ds_nm(){ds_c_month++;if(ds_c_month>12){ds_c_month=1;ds_c_year++;}
ds_draw_calendar(ds_c_month,ds_c_year);}
function ds_pm(){ds_c_month=ds_c_month-1;if(ds_c_month<1){ds_c_month=12;ds_c_year=ds_c_year-1;}
ds_draw_calendar(ds_c_month,ds_c_year);}
function ds_ny(){ds_c_year++;ds_draw_calendar(ds_c_month,ds_c_year);}
function ds_py(){ds_c_year=ds_c_year-1;ds_draw_calendar(ds_c_month,ds_c_year);}
function ds_format_date(d,m,y){m2='00'+m;m2=m2.substr(m2.length-2);d2='00'+d;d2=d2.substr(d2.length-2);return d2+'.'+m2+'.'+y;}
function ds_onclick(d,m,y){ds_hi();if(typeof(ds_element.value)!='undefined'){ds_element.value=ds_format_date(d,m,y);}else if(typeof(ds_element.innerHTML)!='undefined'){ds_element.innerHTML=ds_format_date(d,m,y);}else{alert(ds_format_date(d,m,y));}}

// 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 = [
'Ocak', 'Şubat', 'Mart', 'Nisan', 'Mayıs', 'Haziran',
'Temmuz', 'Ağustos', 'Eylül', 'Ekim', 'Kasım', 'Aralık'
]; // You can translate it for your language.

var ds_daynames = [
'Paz', 'Pzt', 'Sal', 'Çar', 'Per', 'Cum', 'Cmr'
]; // You can translate it for your language.

// Calendar template
function ds_template_main_above(t) {
	return '<table cellpadding="3" cellspacing="1" class="ds_tbl">'
	     + '<tr>'
		 + '<td class="ds_head" style="cursor: pointer" onclick="ds_py();">&lt;&lt;</td>'
		 + '<td class="ds_head" style="cursor: pointer" onclick="ds_pm();">&lt;</td>'
		 + '<td class="ds_head" style="cursor: pointer" onclick="ds_hi();" colspan="3">[KAPAT]</td>'
		 + '<td class="ds_head" style="cursor: pointer" onclick="ds_nm();">&gt;</td>'
		 + '<td class="ds_head" style="cursor: pointer" onclick="ds_ny();">&gt;&gt;</td>'
		 + '</tr>'
	     + '<tr>'
		 + '<td colspan="7" class="ds_head">' + t + '</td>'
		 + '</tr>'
		 + '<tr>';
}

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

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

function ds_template_blank_cell(colspan) {
	return '<td colspan="' + colspan + '"></td>'
}

function ds_template_day(d, m, y) {
	return '<td class="ds_cell" onclick="ds_onclick(' + d + ',' + m + ',' + y + ')">' + d + '</td>';
	// Define width the day row.
}

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

// 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) {
	// 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();
	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';
}

// 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 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));
	}
}