var ChinaData=new Array(100);
var madd=new Array(12);
var tgString="甲乙丙丁戊己庚辛壬癸";
var dzString="子丑寅卯辰巳午未申酉戌亥";
var numString="一二三四五六七八九十";
var monString="正二三四五六七八九十冬腊";
var weekString="日一二三四五六";
var sx="鼠牛虎兔龙蛇马羊猴鸡狗猪";
var cYear,cMonth,cDay,TheDate;
ChinaData = new Array(0xA4B,0x5164B,0x6A5,0x6D4,0x415B5,0x2B6,0x957,0x2092F,0x497,0x60C96,0xD4A,0xEA5,0x50DA9,0x5AD,0x2B6,0x3126E, 0x92E,0x7192D,0xC95,0xD4A,0x61B4A,0xB55,0x56A,0x4155B, 0x25D,0x92D,0x2192B,0xA95,0x71695,0x6CA,0xB55,0x50AB5,0x4DA,0xA5B,0x30A57,0x52B,0x8152A,0xE95,0x6AA,0x615AA,0xAB5,0x4B6,0x414AE,0xA57,0x526,0x31D26,0xD95,0x70B55,0x56A,0x96D,0x5095D,0x4AD,0xA4D,0x41A4D,0xD25,0x81AA5,0xB54,0xB6A,0x612DA,0x95B,0x49B,0x41497,0xA4B,0xA164B, 0x6A5,0x6D4,0x615B4,0xAB6,0x957,0x5092F,0x497,0x64B, 0x30D4A,0xEA5,0x80D65,0x5AC,0xAB6,0x5126D,0x92E,0xC96,0x41A95,0xD4A,0xDA5,0x20B55,0x56A,0x7155B,0x25D,0x92D,0x5192B,0xA95,0xB4A,0x416AA,0xAD5,0x90AB5,0x4BA,0xA5B, 0x60A57,0x52B,0xA93,0x40E95);
madd[0]=0;
madd[1]=31;
madd[2]=59;
madd[3]=90;
madd[4]=120;
madd[5]=151;
madd[6]=181;
madd[7]=212; 
madd[8]=243;
madd[9]=273;
madd[10]=304;
madd[11]=334;

function GetBit(m, n) {
    return (m >> n) & 1;
}
function e2c() {
    TheDate = (arguments.length != 3) ? new Date() : new Date(arguments[0], arguments[1], arguments[2]);
    var total, m, n, k;
    var isEnd = false;
    var tmp = TheDate.getYear();
    if (tmp < 1900) {
        tmp += 1900;
    }
    total = (tmp - 1921) * 365 + Math.floor((tmp - 1921) / 4) + madd[TheDate.getMonth()] + TheDate.getDate() - 38;

    if (TheDate.getYear() % 4 == 0 && TheDate.getMonth() > 1) {
        total++;
    }
    for (m = 0; ; m++) {
        k = (ChinaData[m] < 0xfff) ? 11 : 12;
        for (n = k; n >= 0; n--) {
            if (total <= 29 + GetBit(ChinaData[m], n)) {
                isEnd = true; break;
            }
            total = total - 29 - GetBit(ChinaData[m], n);
        }
        if (isEnd) break;
    }
    cYear = 1921 + m;
    cMonth = k - n + 1;
    cDay = total;
    if (k == 12) {
        if (cMonth == Math.floor(ChinaData[m] / 0x10000) + 1) {
            cMonth = 1 - cMonth;
        }
        if (cMonth > Math.floor(ChinaData[m] / 0x10000) + 1) {
            cMonth--;
        }
    }
}

function GetcDateString() {
    var tmp = "";
    tmp += tgString.charAt((cYear - 4) % 10);
    tmp += dzString.charAt((cYear - 4) % 12);
    tmp += "(";
    tmp += sx.charAt((cYear - 4) % 12);
    tmp += ")年 ";
    if (cMonth < 1) {
        tmp += "(闰)";
        tmp += monString.charAt(-cMonth - 1);
    } else {
        tmp += monString.charAt(cMonth - 1);
    }
    tmp += "月";
    tmp += (cDay < 11) ? "初" : ((cDay < 20) ? "十" : ((cDay < 30) ? "廿" : "三十"));
    if (cDay % 10 != 0 || cDay == 10) {
        tmp += numString.charAt((cDay - 1) % 10);
    }
    return tmp;
}

function GetLunarDay(solarYear, solarMonth, solarDay) {
    //solarYear = solarYear<1900?(1900+solarYear):solarYear;
    if (solarYear < 1921 || solarYear > 2020) {
        return "";
    } else {
        solarMonth = (parseInt(solarMonth) > 0) ? (solarMonth - 1) : 11;
        e2c(solarYear, solarMonth, solarDay);
        return GetcDateString();
    }
}


function showCal(d) {
    var date = d ? d : new Date();

    var yy = date.getFullYear();
    var mm = date.getMonth() + 1;
    var dd = date.getDate();
    var ww = date.getDay();
    var ss = parseInt(date.getTime() / 1000);
    if (yy < 100) yy = "19" + yy;
    return GetLunarDay(yy, mm, dd);
}

function showWork(d) {
    var date = d ? d : new Date();
    return new Array("星期天", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六")[date.getDay()];
}