function leftArrowClick() {
	var month = $("#month_num").attr("value");
	month = parseInt(month) - 1;
	var year = $("#year_num").attr("value");
	
	if(month == 0) {
		month = 12;
		year = parseInt(year) - 1;
	}
	
	var url = scheduleCalendarProcessor;
	$("#schedule_calendar").load(url, {type:'ajax', month:month, year:year});
	
	return false;
}

function rightArrowClick() {
	var month = $("#month_num").attr("value");
	month = parseInt(month) + 1;
	var year = $("#year_num").attr("value");
	
	if(month == 13) {
		month = 1;
		year = parseInt(year) + 1;
	}
	
	var url = scheduleCalendarProcessor;
	$("#schedule_calendar").load(url, {type:'ajax', month:month, year:year});
	
	return false;
}