// Copyright (c) 2004-2009 koikikukan All Rights Reserved.
// http://www.koikikukan.com/
// License is granted if and only if this entire
// copyright notice is included. By Yujiro ARAKI.

// Ver1.00 2006.03.15 initial version.
// Ver1.01 2006.04.11 fix bug.
// Ver1.02 2006.04.15 fix bug.
// Ver1.03 2006.04.16 fix bug.
// Ver1.04 2006.08.03 fix bug.
// Ver1.05 2007.04.21 fix bug.
// Ver1.06 2009.02.17 for change low.

//======================================================
// 休日データ取得用
// cal_make.php cal_file.php ajaxCalender.js dayChecker.js とセット
//======================================================

var currentYear;
var currentMonth;
var currentDay;



function setCurrentDate() {
    data = new Date();
    currentYear = data.getYear();
    currentYear = (currentYear < 2000) ? currentYear + 1900 : currentYear;
    currentMonth = data.getMonth() + 1;
    currentDay = data.getDate();
}

function isToday(year, month, day) {
    if (year == currentYear && parseInt(month,10) == currentMonth && day == currentDay) {
        return true;
    }
    return false;
}

function isSaturday(year, month, day) {
    var week = new Date(year, month - 1, day).getDay();
    if (week == 6) {
        return true;
    }
    return false;
}

function isHoliday(year, month, day) {
    var week = new Date(year, month - 1, day).getDay();
    if (week == 0) {
        return true;
    }
    switch(parseInt(month,10)) {
    case 1:
        if (day == 1) {
            return true;
        }
        if (day == 2 && isSunday(year, month, 1)) {
            return true;
        }
        if (day == (getFirstMonday(year, month) + 7)) {
            return true;
        }
        break;
    case 2:
        if (day == 11) {
            return true;
        }
        if (day == 12 && isSunday(year, month, 11)) {
            return true;
        }
        break;
    case 3:
        if(year > 1979 && year < 2100) {
            if (day == parseInt(20.8431 + 0.242194 * (year - 1980) - parseInt((year - 1980) / 4))) {
                return true;
            }
            if (day == (parseInt(20.8431 + 0.242194 * (year - 1980) - parseInt((year - 1980) / 4)) + 1) && isSunday(year, month, day - 1)) {
                return true;
            }
        }
        break;
    case 4:
        if (day == 29) {
            return true;
        }
        if (day == 30 && isSunday(year, month, 29)) {
            return true;
        }
        break;
    case 5:
        if (day == 3 || day == 4 || day == 5) {
            return true;
        }
        if (day == 6 && (isSunday(year, month, 3) ||
                         isSunday(year, month, 4) ||
                         isSunday(year, month, 5))) {
            return true;
        }
        break;
    case 7:
        if (day == (getFirstMonday(year, month) + 14)) {
            return true;
        }
        break;
    case 9:
        if (day == (getFirstMonday(year, month) + 14)) {
            return true;
        }
        if(year > 1979 && year < 2100) {
            if (day == parseInt(23.2488 + 0.242194 * (year - 1980) - parseInt((year - 1980) / 4))) {
                return true;
            }
            if (day == (parseInt(23.2488 + 0.242194 * (year - 1980) - parseInt((year - 1980) / 4)) + 1) && isSunday(year, month, day - 1)) {
                return true;
            }
        }
        var day2 = parseInt(day, 10);
        if(day2 - 1 == (getFirstMonday(year, month) + 14))  {
            if(year > 2008 && year < 2100) {
                if (day2 + 1 == parseInt(23.2488 + 0.242194 * (year - 1980) - parseInt((year - 1980)  / 4))) {
                    return true;
                }
                if (day2 + 1 == (parseInt(23.2488 + 0.242194 * (year - 1980) - parseInt((year - 1980) / 4)) + 1) && isSunday(year, month, day - 1)) {
                    return true;
                }
            }
        }
        break;
    case 10:
        if (day == (getFirstMonday(year, month) + 7)) {
            return true;
        }
        break;
    case 11:
        if (day == 3 || day == 23) {
            return true;
        }
        if (day == 4 && isSunday(year, month, 3)) {
            return true;
        }
        if (day == 24 && isSunday(year, month, 23)) {
            return true;
        }
        break;
    case 12:
        if (day == 23) {
            return true;
        }
        if (day == 24 && isSunday(year, month, 23)) {
            return true;
        }
        break;
    }
    return false;
}

function isSunday(year, month, day) {
    var week = new Date(year, month - 1, day).getDay();
    if (week == 0) {
        return true;
    }
    return false;
}

function getFirstMonday(year, month) {
    var monday;
    for(monday = 1; monday < 8; monday++) {
        if(new Date(year, month - 1, monday).getDay() == 1) {
            break;
        }
    }
    return monday;
}

//====================================================
//    追加
//===================================================
// HTTP通信用、共通関数
function createXMLHttpRequest(){
	var XMLhttpObject = null;
	try{
		XMLhttpObject = new XMLHttpRequest();
	}catch(e){
		try{
			XMLhttpObject = new ActiveXObject("Msxml2.XMLHTTP");
		}catch(e){
			try{
				XMLhttpObject = new ActiveXObject("Microsoft.XMLHTTP");
			}catch(e){
				return null;
			}
		}
	}
	
	return XMLhttpObject;
}

//-----------------------------------------
// Cromeでは出来るが
// IEでは他のDIR内からデータを取得できない為
// cal_file.phpにて指定DIRのデータを取得する
// 上記理由により POST処理を行う
//-----------------------------------------
// httpObj.open POST用
function getFile(year, month){
	//alert(lopath);
	var stmp = "";
	httpObj = createXMLHttpRequest();
	if (httpObj){
		var sct = (new Date()).getTime();
		//phpにて読み込むファイル指定 phpからのパス
		var f=encodeURIComponent("./include/"+ year + "_kyuuichi.txt");
		//mtosのページによってDirが違う為 phpの場所をlopath にて指定
		//alert(lopath + "cal_file.php?ct=" + sct);
		httpObj.open("POST",lopath + "cal_file.php?ct=" + sct,false);
		httpObj.setRequestHeader('Content-Type',
				'application/x-www-form-urlencoded; charset=UTF-8');
		
		httpObj.onreadystatechange = function(){
			if ((httpObj.readyState == 4) && (httpObj.status == 200)){
				//var textdata = httpObj.responseText;
				//$("result").innerHTML = httpObj.responseText;
				//document.getElementById("closed_list").value = httpObj.responseText;
				stmp=httpObj.responseText;
			}
		};

		httpObj.send("file=" + f);
		
	}
	
	return stmp;
}