//休日指定（YYYYMMDD形式）
myHoliday = new Array("20081228",
                      "20081229",
                      "20081230",
                      "20090101",
                      "20090102",
                      "20090103",
                      "20090104",
                      "20090105",
                      "20090106",
                      "20090201",
                      "20090301",
                      "20090405",
                      "20090503",
                      "20090607",
                      "20090705",
                      "20090802",
                      "20090813",
                      "20090814",
                      "20090815",
                      "20090816",
                      "20090906",
                      "20091004",
                      "20091101",
                      "20091206",
                      "20091229",
                      "20091230",
                      "20091231",
                      "20100101",
                      "20100102",
                      "20100103",
                      "20100104",
                      "20100105",
                      "20100106",
                      "20100207",
                      "20100307",
                      "20100404",
                      "20100502",
                      "20100606",
                      "20100704",
                      "20100801",
                      "20100905",
                      "20101003",
                      "20101107",
                      "20101205",
                      "20101229",
                      "20101230",
                      "20101231",
                      "20110101",
                      "20110102",
                      "20110103",
                      "20110104",
                      "20110206",
                      "20110306",
                      "20110403",
                      "20110501",
                      "20110605",
                      "20110703",
                      "20110807",
                      "20110904",
                      "20111002",
                      "20111106",
                      "20111204",
                      "20151231"
                      );

var myDate = null;

function writeCalendar(year, month, day) {
    //引数に日付が指定されていない場合は、今日の日付を取得
    if (year == null || month == null || day == null) {
        myDate = new Date();                                   // 今日の日付データ取得
    } else {
        myDate = new Date(year, month, day);
    }

    myWeekTbl = new Array("日","月","火","水","木","金","土"); // 曜日テーブル定義
    myMonthTbl= new Array(31,28,31,30,31,30,31,31,30,31,30,31);// 月テーブル定義
    myYear = myDate.getFullYear();                                 // 下２桁の西暦取得
    myYear = (myYear<2000) ? (1900+myYear) : (myYear);         // ４桁の西暦に変換
    if (((myYear%4)==0 && (myYear%100)!=0) || (myYear%400)==0) // うるう年だったら...
       myMonthTbl[1] = 29;                                     // 　２月を２９日とする
    myMonth = myDate.getMonth();                               // 月を取得(0月～11月)
    myToday = myDate.getDate();                                // 今日の'日'を退避
    myDate.setDate(1);                                         // 日付を'１日'に変えて、
    myWeek = myDate.getDay();                                  // '１日'の曜日を取得
    myTblLine = Math.ceil((myWeek+myMonthTbl[myMonth])/7);     // カレンダーの行数
    myTable   = new Array(7*myTblLine);                        // 表のセル数分定義

    for(i=0; i<7*myTblLine; i++) myTable[i]="　";              // myTableを掃除する
    for(i=0; i<myMonthTbl[myMonth]; i++)myTable[i+myWeek]=i+1; // 日付を埋め込む

    // ***********************
    // *  カレンダーの表示   *
    // ***********************
    var strCal = "";
    strCal = "<p>" + myYear + "年" + (myMonth+1) + "月の営業日カレンダー</p>"
    
    
    var preMonth = new Date(myYear, myMonth-1, 1);
    var nowDate = new Date();
    var nextMonth = new Date(myYear, myMonth+1, 1);
    strCal = strCal + "<div align='center'><p><a href='./index.html' onclick=\"writeCalendar('" + preMonth.getFullYear() + "','" + preMonth.getMonth() + "','1'); return false;\">前月</a>　　　<a href='./index.html' onclick=\"writeCalendar('" + nowDate.getFullYear() + "','" + nowDate.getMonth() + "','1'); return false;\">今月</a>　　　<a href='./index.html' onclick=\"writeCalendar('" + nextMonth.getFullYear() + "','" + nextMonth.getMonth() + "','1'); return false;\">翌月</a></p></div>";
    
    
    strCal = strCal + "<table ";						// 表の作成開始
    strCal = strCal + "bordercolor='#808080' ";
    strCal = strCal + "bordercolordark='#000000' ";
    strCal = strCal + "bordercolorlight='#C0C0C0'>";

    strCal = strCal + "<tr>";							// 曜日見出しセット
    strCal = strCal + "<th class='tdred'>日</th>";
    strCal = strCal + "<th class='tdn'>月</th>";
    strCal = strCal + "<th class='tdn'>火</th>";
    strCal = strCal + "<th class='tdn'>水</th>";
    strCal = strCal + "<th class='tdn'>木</th>";
    strCal = strCal + "<th class='tdn'>金</th>";
    strCal = strCal + "<th class='tdblue'>土</th>";
    strCal = strCal + "</tr>";

    // 日付の書き込み
    for(i=0; i<myTblLine; i++){                                 // 表の「行」のループ
       strCal = strCal + "<tr>";								// 行の開始
       for(j=0; j<7; j++){                                      // 表の「列」のループ
          strCal = strCal + "<td align='center' ";				// 列(セル)の作成
          myDat = myTable[j+(i*7)];                             // 書きこむ内容の取得
          if(j==3 && myDat != "　") {
            strCal = strCal + "bgcolor='#ffb6c1'";				// 水曜のセルの色
          }

          //水曜以外の休日のセルの色設定（水曜を休日指定にしていると表示が崩れる）
          for (k=0; k<myHoliday.length; k++) {
            if (myYear == myHoliday[k].substr(0, 4) &&
                myMonth+1 == myHoliday[k].substr(4, 2) &&
                myDat == myHoliday[k].substr(6, 2)) {
                strCal = strCal + "bgcolor='#ffb6c1'";
            }
          }

          strCal = strCal + ">";								// tdの閉じタグ
          strCal = strCal + myDat;								// 日付セット
          strCal = strCal + "</td>";							// 列(セル)の終わり
       }
       strCal = strCal + "</tr>"								// 行の終わり
    }

    strCal = strCal + "</table>";								// 表の終わり
    strCal = strCal + "<p class='datep'>※<span class='f_tdh'>■</span>は定休日です。<br />定休日：水曜・第1日曜日</p>";

    document.getElementById("cal").innerHTML = strCal;
}



function changeCalendar(param) {
    if (param == "pre") {
        writeCalendar(preMonth);
    } else {
        writeCalendar(nextMonth);
    }
}