function nav(sel) {
   if (sel.selectedIndex == -1) return;
   var opt = sel.options[sel.selectedIndex];
   if (opt && opt.value)
      location.href = opt.value;
}

// プルダウンスクリプト　ここから

function selectUrl(sel){
    if(sel.options[sel.selectedIndex].value){
        location.href = sel.options[sel.selectedIndex].value;
    }
}
 
function addSelectForMonthly(data){
    var year = data.substring(0,4);
    var month = data.substring(12,14);
    var nodes = document.getElementById('monthlylist').getElementsByTagName("option");
    for (var i = 0; i < nodes.length; i++) {
        var selectYear = nodes[i].innerHTML.substring(0,4);
        var selectMonth = nodes[i].innerHTML.substring(5,7);
        if(year == selectYear && month == selectMonth){
            nodes[i].selected = true;
        }
    }
}
 
function addSelectForCategory(data){
    var nodes = document.getElementById('categorylist').getElementsByTagName("option");
    for (var i = 0; i < nodes.length; i++) {
        if(nodes[i].innerHTML.indexOf(data) == 0){
            nodes[i].selected = true;
        }
    }
}

// プルダウンスクリプト　ここまで

// Ajaxカレンダー　ここから

var blogID;

function getCalendar(blogURL, id, path) {
    blogID = id;
    var cookie = readCookie("AjaxCal" + id);
    if(cookie != null) {
        if(blogURL.lastIndexOf("/") != blogURL.length - 1) {
            path = blogURL + "/calendar/" + cookie + "/";
        } else {
            path = blogURL + "calendar/" + cookie + "/";
        }
    }
    changeMonth(path);
}

function changeMonth(url) {
    url += "?" + (new Date()).getTime();
    new Ajax.Updater({success: 'calendar'},
                     url, {
                         method: 'get',
                         onComplete: endProcess,
                         onFailure: errorProcess
                     });
    return false;
}

function readCookie(name) {
    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for (var i = 0, len = ca.length; i < len; i++) {
        var c = ca[i];
        while (c.charAt(0)==' ') c = c.substring(1,c.length);
        if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
    }
    return null;
}

function endProcess() {
    var value = $('calendar').getElementsByTagName('table')[0].getAttribute('summary');
    setWeekendAndHoliday(value.split("/")[0], value.split("/")[1]);
    document.cookie = "AjaxCal" + blogID + "=" + value + "; path=/";
}

function errorProcess() {
    $('calendar').innerHTML = 'File Not Found';
}

function setWeekendAndHoliday(y,m) {
    setCurrentDate();
    var elements = $('calendar').getElementsByTagName("table");
    for (var j = 0, len = elements.length; j < len; j++) {
        var element = elements[j].getAttribute("summary");
        if(element == null){
            return;
        }
        var year = element.split("/")[0];
        var month = element.split("/")[1];
        if(!(year == y && month == m)){
            return;
        }
        var spans = elements[j].getElementsByTagName("span");
        var day;
        for (i = 0; i < spans.length; i++) {
            if (spans[i].parentNode.nodeName == "TD") {
                if(spans[i].innerHTML.indexOf("href") != -1){
                    day = spans[i].getElementsByTagName("a")[0].innerHTML;
                } else {
                    day = spans[i].innerHTML;
                }
                if (isHoliday(year, month, day)) {
                    spans[i].setAttribute('class', 'holiday');
                    spans[i].setAttribute('className', 'holiday');
                } else if(isSaturday(year, month, day)) {
                    spans[i].setAttribute('class', 'saturday');
                   spans[i].setAttribute('className', 'saturday');
                }
                if (isToday(year, month, day)) {
                    spans[i].parentNode.setAttribute('class', 'today');
                    spans[i].parentNode.setAttribute('className', 'today');
                }
            }
        }
    }
}

// Ajaxカレンダー　ここまで

// dayChecker　ここから

// Copyright (c) 2004-2007 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.

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;
            }
        }
        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;
}

// dayChecker　ここまで