var classNames = new Array('holyday','xday','birthday');

var holyday = new Object();
	
if (cal_year < 1900) cal_year += 1900;
document.write("<div id='calendar'></div>");
var cal = document.getElementById("calendar");
var defaultBackgroundColors = new Object();
var to_year = cal_year;
var to_month = cal_month;
var to_day = cal_day;

function tdOver(obj){
	defaultBackgroundColors[obj] = obj.style.backgroundColor;
	obj.style.backgroundColor = '#E8EEF9';
}
function tdOut(obj){
	obj.style.backgroundColor = defaultBackgroundColors[obj];
}
function spanOver(obj){
	defaultBackgroundColors[obj] = obj.style.backgroundColor;
	obj.style.color = '#FF9900';
}
function spanOut(obj){
	obj.style.color = defaultBackgroundColors[obj];
}

function currentCal(){
	cal_year = to_year;
	cal_month = to_month;
	cal_day = to_day;
	
	search(cal_userId, cal_year, cal_month, cal_day);
	
}
function prevCal(){
	cal_month -= 1;
	if(cal_month < 1){
		cal_month = 12;
		cal_year -= 1;
	}
	
	search(cal_userId, cal_year, cal_month, 0);

}
function nextCal(){
	cal_month += 1;
	if(cal_month > 12){
		cal_month = 1;
		cal_year += 1;
	}
	
	search(cal_userId, cal_year, cal_month, 0);
	
}
function getWeek(year,month,day){
	if (month == 1 || month == 2) {
		year--;
		month += 12;
	}
	var week = Math.floor(year + Math.floor(year/4) - Math.floor(year/100) + Math.floor(year/400) + Math.floor((13 * month + 8) / 5) + day) % 7;
	return week;
}
function writeCal(year,month,day,entriedDate){
	var calendars = new Array(0,31,28,31,30,31,30,31,31,30,31,30,31);
	var weeks = new Array("日","月","火","水","木","金","土");
	var monthName = new Array('none','1月','2月','3月','4月','5月','6月','7月','8月','9月','10月','11月','12月');

	var cal_flag = 0;
	if(year % 100 == 0 || year % 4 != 0){
		if(year % 400 != 0){
			cal_flag = 0;
		}
		else{
			cal_flag = 1;
		}
	}
	else if(year % 4 == 0){
		cal_flag = 1;
	}
	else{
		cal_flag = 0;
	}
	calendars[2] += cal_flag;
	
	var cal_start_day = getWeek(year,month,1);
	var cal_tags = "<table border='0' cellspacing='0' cellpadding='0' class='calendar'>";
	cal_tags += "<tr><th colspan='7'>";
	cal_tags += "<span onMouseOver='spanOver(this);' onMouseOut='spanOut(this);' onClick='prevCal();'>&nbsp;>>&nbsp;</span>";
	cal_tags += "<span onMouseOver='spanOver(this);' onMouseOut='spanOut(this);' onClick='currentCal();'> NOW </span>";
	cal_tags += "<span onMouseOver='spanOver(this);' onMouseOut='spanOut(this);' onClick='nextCal();'>&nbsp;<<&nbsp;</span>";
	cal_tags += year + "年" + monthName[month] + "</th></tr>";
	cal_tags += "<tr class='headline'>";
	for(var i=0;i<weeks.length;i++){
		cal_tags += "<td>" + weeks[i] + "</td>";
	}
	cal_tags += "</tr><tr>";
	for(var i=0;i < cal_start_day;i++){
		cal_tags += "<td>&nbsp;</td>";
	}

	//main
	for(var cal_day_cnt = 1;cal_day_cnt <= calendars[month];cal_day_cnt++){
		var cal_day_match = year + "/" + month + "/" + cal_day_cnt;
		var dayClass = "";
		
		if(holyday[cal_day_match] != undefined){
			dayClass = ' class="'+classNames[holyday[cal_day_match]]+'"';
		}
		else if(cal_day_cnt == day){
			dayClass = ' class="Today"';
		}
		else if(cal_start_day == 0){
			dayClass = ' class="Sun"';
		}
		else if(cal_start_day == 6){
			dayClass = ' class="Sat"';
		}
		
		var existEntry = false;

		for (var entriedDateIndex = 0; entriedDateIndex < entriedDate.length; entriedDateIndex++) {
			try {
				if ( parseInt(entriedDate[entriedDateIndex],10) == cal_day_cnt) {
					existEntry = true;
					break;
				}
			} catch(e) {
				existEntry = false;
			}
		}
		
		if (existEntry) {
			cal_tags += "<td onMouseOver='tdOver(this);' onMouseOut='tdOut(this);'"+dayClass+"><div class='dailyLink'><a href='/"+cal_url+"/calendar/"+year+"-"+month+"-"+cal_day_cnt+"'>" + cal_day_cnt + "</a></div></td>";
		} else {
			cal_tags += "<td onMouseOver='tdOver(this);' onMouseOut='tdOut(this);'"+dayClass+">" + cal_day_cnt + "</td>";
		}
		if(cal_start_day == 6){
			cal_tags += "</tr>";
			if(cal_day_cnt < calendars[month]){
				cal_tags += "<tr>";
			}
			cal_start_day = 0;
		}
		else{
			cal_start_day++;
		}
	}
	while(cal_start_day <= 6 && cal_start_day != 0){
		cal_tags += "<td>&nbsp;</td>";
		if(cal_start_day == 6){
			cal_tags += "</tr>";
		}
		cal_start_day++;
	}
	cal_tags += "</table>";
	cal.innerHTML = cal_tags;
	
}

function search(userId, cal_year, cal_month, cal_day) {
    // ajax通信
    jQuery.ajax({
		dataType: "jsonp",
        data: {
        	"userId":userId,
        	"year":cal_year,
        	"month":cal_month
        },
        cache: false,
        url: "/ajax/diary/calendar.moo",
        success: function (data, status) {

    		var entriedDate = [];

        	try {
	        	entriedDate = data.showDays.replace(/"/g, "").replace("[", "").replace("]", "").split(",");
	        } catch(e) {
	        	alert(e);
	        }
	        
	        writeCal(cal_year,cal_month,cal_day,entriedDate);
        }
    });
}