var calendar_load = new Image(43,11);
calendar_load.src = "calendar/calendar.gif";

var calendar_left = new Image(38,38);
calendar_left.src = "calendar/left.png";

var calendar_right = new Image(38,38);
calendar_right.src = "calendar/right.png";

var myDate = new Date();
var myYear = myDate.getFullYear();//YYYY format
var myMonth = myDate.getMonth() + 1;//1-12 format
var myDay = 1;//temporary

function load_cal_next(selector)
{
	if(myMonth==12)
	{
		myMonth = 1;
		myYear++;
	}
	else
	{
		myMonth++;
	}
	load_cal(selector);
}

function load_cal_prev(selector)
{
	if(myMonth==1)
	{
		myMonth = 12;
		myYear--;
	}
	else
	{
		myMonth--;
	}
	load_cal(selector);
}

function load_cal(selector)
{
	$(selector).html("<div style='text-align:center;margin-top:33px;margin-bottom:33px;'><img src='"+calendar_load.src+"'></div>");
	$(selector).load('calendar/calendar.php',{date:format_date(myYear,myMonth,myDay)});
}

function format_date(year,month,day)
{
	var ret_year = '' + year;
	
	if(month < 10)
	{
		var ret_month = '0' + month;
	}
	else
	{
		var ret_month = '' + month;
	}
	
	if(day < 10)
	{
		var ret_day = '0' + day;
	}
	else
	{
		var ret_day = '' + day;
	}
	
	return ret_year + '-' + ret_month + '-' + ret_day;
}