//---------------------------------------------------
// 判断闰年
//---------------------------------------------------
/**/
Date.prototype.isLeapYear = function()
{
    return (0==this.getYear()%4&&((this.getYear()%100!=0)||(this.getYear()%400==0)));
}

//---------------------------------------------------
// 日期格式化
// 格式 YYYY/yyyy/YY/yy 表示年份
// MM/M 月份
// W/w 星期
// dd/DD/d/D 日期
// hh/HH/h/H 时间
// mm/m 分钟
// ss/SS/s/S 秒
//---------------------------------------------------
Date.prototype.Format = function(formatStr)
{
    var str = formatStr;
    var Week = ['日','一','二','三','四','五','六'];

    str=str.replace(/yyyy|YYYY/,this.getFullYear());
    str=str.replace(/yy|YY/,(this.getYear() % 100)>9?(this.getYear() % 100).toString():'0' + (this.getYear() % 100));

    str=str.replace(/MM/,this.getMonth()>9?this.getMonth().toString():'0' + this.getMonth());
    str=str.replace(/M/g,this.getMonth());

    str=str.replace(/w|W/g,Week[this.getDay()]);

    str=str.replace(/dd|DD/,this.getDate()>9?this.getDate().toString():'0' + this.getDate());
    str=str.replace(/d|D/g,this.getDate());

    str=str.replace(/hh|HH/,this.getHours()>9?this.getHours().toString():'0' + this.getHours());
    str=str.replace(/h|H/g,this.getHours());
    str=str.replace(/mm/,this.getMinutes()>9?this.getMinutes().toString():'0' + this.getMinutes());
    str=str.replace(/m/g,this.getMinutes());

    str=str.replace(/ss|SS/,this.getSeconds()>9?this.getSeconds().toString():'0' + this.getSeconds());
    str=str.replace(/s|S/g,this.getSeconds());

    return str;
}

//+---------------------------------------------------
//| 求两个时间的天数差 日期格式为 YYYY-MM-dd
//+---------------------------------------------------
function daysBetween(DateOne,DateTwo)
{
    var OneMonth = DateOne.substring(5,DateOne.lastIndexOf ('-'));
    var OneDay = DateOne.substring(DateOne.length,DateOne.lastIndexOf ('-')+1);
    var OneYear = DateOne.substring(0,DateOne.indexOf ('-'));

    var TwoMonth = DateTwo.substring(5,DateTwo.lastIndexOf ('-'));
    var TwoDay = DateTwo.substring(DateTwo.length,DateTwo.lastIndexOf ('-')+1);
    var TwoYear = DateTwo.substring(0,DateTwo.indexOf ('-'));

    var cha=((Date.parse(OneMonth+'/'+OneDay+'/'+OneYear)- Date.parse(TwoMonth+'/'+TwoDay+'/'+TwoYear))/86400000);
    return Math.abs(cha);
}


//+---------------------------------------------------
//| 日期计算
//+---------------------------------------------------
Date.prototype.DateAdd = function(strInterval, Number) {
    var dtTmp = this;
    switch (strInterval) {
        case 's' :return new Date(Date.parse(dtTmp) + (1000 * Number));
        case 'n' :return new Date(Date.parse(dtTmp) + (60000 * Number));
        case 'h' :return new Date(Date.parse(dtTmp) + (3600000 * Number));
        case 'd' :return new Date(Date.parse(dtTmp) + (86400000 * Number));
        case 'w' :return new Date(Date.parse(dtTmp) + ((86400000 * 7) * Number));
        case 'q' :return new Date(dtTmp.getFullYear(), (dtTmp.getMonth()) + Number*3, dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds());
        case 'm' :return new Date(dtTmp.getFullYear(), (dtTmp.getMonth()) + Number, dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds());
        case 'y' :return new Date((dtTmp.getFullYear() + Number), dtTmp.getMonth(), dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds());
    }
}

//+---------------------------------------------------
//| 比较日期差 dtEnd 格式为日期型或者 有效日期格式字符串
//+---------------------------------------------------
Date.prototype.DateDiff = function(strInterval, dtEnd) {
    var dtStart = this;
    if (typeof dtEnd == 'string' )//如果是字符串转换为日期型
    {
        dtEnd = StringToDate(dtEnd);
    }
    switch (strInterval) {
        case 's' :return parseInt((dtEnd - dtStart) / 1000);
        case 'n' :return parseInt((dtEnd - dtStart) / 60000);
        case 'h' :return parseInt((dtEnd - dtStart) / 3600000);
        case 'd' :return parseInt((dtEnd - dtStart) / 86400000);
        case 'w' :return parseInt((dtEnd - dtStart) / (86400000 * 7));
        case 'm' :return (dtEnd.getMonth()+1)+((dtEnd.getFullYear()-dtStart.getFullYear())*12) - (dtStart.getMonth()+1);
        case 'y' :return dtEnd.getFullYear() - dtStart.getFullYear();
    }
}

//+---------------------------------------------------
//| 日期输出字符串，重载了系统的toString方法
//+---------------------------------------------------
Date.prototype.toString = function(showWeek)
{
    var myDate= this;
    var str = myDate.toLocaleDateString();
    if (showWeek)
    {
        var Week = ['日','一','二','三','四','五','六'];
        str += ' 星期' + Week[myDate.getDay()];
    }
    return str;
}

//+---------------------------------------------------
//| 日期合法性验证
//| 格式为：YYYY-MM-DD或YYYY/MM/DD
//+---------------------------------------------------
function IsValidDate(DateStr)
{
    var sDate=DateStr.replace(/(^\s+|\s+$)/g,''); //去两边空格;
    if(sDate=='') return true;
    //如果格式满足YYYY-(/)MM-(/)DD或YYYY-(/)M-(/)DD或YYYY-(/)M-(/)D或YYYY-(/)MM-(/)D就替换为''
    //数据库中，合法日期可以是:YYYY-MM/DD(2003-3/21),数据库会自动转换为YYYY-MM-DD格式
    var s = sDate.replace(/[\d]{ 4,4 }[\-/]{ 1 }[\d]{ 1,2 }[\-/]{ 1 }[\d]{ 1,2 }/g,'');
    if (s=='') //说明格式满足YYYY-MM-DD或YYYY-M-DD或YYYY-M-D或YYYY-MM-D
    {
        var t=new Date(sDate.replace(/\-/g,'/'));
        var ar = sDate.split(/[-/:]/);
        if(ar[0] != t.getYear() || ar[1] != t.getMonth()+1 || ar[2] != t.getDate())
        {
            //alert('错误的日期格式！格式为：YYYY-MM-DD或YYYY/MM/DD。注意闰年。');
            return false;
        }
    }
    else
    {
        //alert('错误的日期格式！格式为：YYYY-MM-DD或YYYY/MM/DD。注意闰年。');
        return false;
    }
    return true;
}
//+---------------------------------------------------
//| 日期时间检查
//| 格式为：YYYY-MM-DD HH:MM:SS
//+---------------------------------------------------
function CheckDateTime(str)
{
    var reg = /^(\d+)-(\d{ 1,2 })-(\d{ 1,2 }) (\d{ 1,2 }):(\d{ 1,2 }):(\d{ 1,2 })$/;
    var r = str.match(reg);
    if(r==null)return false;
    r[2]=r[2]-1;
    var d= new Date(r[1],r[2],r[3],r[4],r[5],r[6]);
    if(d.getFullYear()!=r[1])return false;
    if(d.getMonth()!=r[2])return false;
    if(d.getDate()!=r[3])return false;
    if(d.getHours()!=r[4])return false;
    if(d.getMinutes()!=r[5])return false;
    if(d.getSeconds()!=r[6])return false;
    return true;
}
//+---------------------------------------------------
//| 把日期分割成数组
//+---------------------------------------------------
Date.prototype.toArray = function()
{
    var myDate = this;
    var myArray = Array();
    myArray[0] = myDate.getFullYear();
    myArray[1] = myDate.getMonth();
    myArray[2] = myDate.getDate();
    myArray[3] = myDate.getHours();
    myArray[4] = myDate.getMinutes();
    myArray[5] = myDate.getSeconds();
    return myArray;
}
//+---------------------------------------------------
//| 取得日期数据信息
//| 参数 interval 表示数据类型
//| y 年 m月 d日 w星期 ww周 h时 n分 s秒
//+---------------------------------------------------
Date.prototype.DatePart = function(interval)
{
    var myDate = this;
    var partStr='';
    var Week = ['日','一','二','三','四','五','六'];
    switch (interval)
    {
        case 'y' :partStr = myDate.getFullYear();break;
        case 'm' :partStr = myDate.getMonth()+1;break;
        case 'd' :partStr = myDate.getDate();break;
        case 'w' :partStr = Week[myDate.getDay()];break;
        case 'ww' :partStr = myDate.WeekNumOfYear();break;
        case 'h' :partStr = myDate.getHours();break;
        case 'n' :partStr = myDate.getMinutes();break;
        case 's' :partStr = myDate.getSeconds();break;
    }
    return partStr;
}
//+---------------------------------------------------
//| 取得当前日期所在月的最大天数
//+---------------------------------------------------
Date.prototype.MaxDayOfDate = function()
{
    var myDate = this;
    var ary = myDate.toArray();
    var date1 = (new Date(ary[0],ary[1]+1,1));
    var date2 = date1.dateAdd(1,'m',1);
    var result = dateDiff(date1.Format('yyyy-MM-dd'),date2.Format('yyyy-MM-dd'));
    return result;
}

//+---------------------------------------------------
//| 取得当前日期所在周是一年中的第几周
//+---------------------------------------------------
Date.prototype.WeekNumOfYear = function()
{
    var myDate = this;
    var ary = myDate.toArray();
    var year = ary[0];
    var month = ary[1]+1;
    var day = ary[2];
    document.write('<script language=VBScript> \n');
    document.write('myDate = DateValue(\'\'+month+\'-\'+day+\'-\'+year+\'\') \n');
    document.write('result = DatePart(\'ww\', myDate) \n');
    document.write('</script>\n');
    return result;
}

//+---------------------------------------------------
//| 字符串转成日期类型
//| 格式 MM/dd/YYYY MM-dd-YYYY YYYY/MM/dd YYYY-MM-dd
//+---------------------------------------------------
function StringToDate(DateStr)
{

    var converted = Date.parse(DateStr);
    var myDate = new Date(converted);
    if (isNaN(myDate))
    {
        //var delimCahar = DateStr.indexOf('/')!=-1?'/':'-';
        var arys= DateStr.split('-');
        myDate = new Date(arys[0],--arys[1],arys[2]);
    }
    return myDate;
}


//日期相加后得到新日期 开始
Date.prototype.Format = function(fmt)
{
    var o =
    {
        "M+" : this.getMonth() + 1, //月份
        "d+" : this.getDate(), //日
        "h+" : this.getHours(), //小时
        "m+" : this.getMinutes(), //分
        "s+" : this.getSeconds(), //秒
        "q+" : Math.floor((this.getMonth() + 3) / 3), //季度
        "S" : this.getMilliseconds() //毫秒
    };
    if (/(y+)/.test(fmt))
        fmt = fmt.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
    for (var k in o)
        if (new RegExp("(" + k + ")").test(fmt))
            fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
    return fmt;
}


Date.prototype.addDays = function(d)
{
    this.setDate(this.getDate() + d);
};


Date.prototype.addWeeks = function(w)
{
    this.addDays(w * 7);
};


Date.prototype.addMonths= function(m)
{
    var d = this.getDate();
    this.setMonth(this.getMonth() + m);

    if (this.getDate() < d)
        this.setDate(0);
};


Date.prototype.addYears = function(y)
{
    var m = this.getMonth();
    this.setFullYear(this.getFullYear() + y);

    if (m < this.getMonth())
    {
        this.setDate(0);
    }
};
//日期相加后得到新日期 结束

//获得农历
var   lunarInfo=new   Array(
    0x04bd8,0x04ae0,0x0a570,0x054d5,0x0d260,0x0d950,0x16554,0x056a0,0x09ad0,0x055d2,
    0x04ae0,0x0a5b6,0x0a4d0,0x0d250,0x1d255,0x0b540,0x0d6a0,0x0ada2,0x095b0,0x14977,
    0x04970,0x0a4b0,0x0b4b5,0x06a50,0x06d40,0x1ab54,0x02b60,0x09570,0x052f2,0x04970,
    0x06566,0x0d4a0,0x0ea50,0x06e95,0x05ad0,0x02b60,0x186e3,0x092e0,0x1c8d7,0x0c950,
    0x0d4a0,0x1d8a6,0x0b550,0x056a0,0x1a5b4,0x025d0,0x092d0,0x0d2b2,0x0a950,0x0b557,
    0x06ca0,0x0b550,0x15355,0x04da0,0x0a5d0,0x14573,0x052d0,0x0a9a8,0x0e950,0x06aa0,
    0x0aea6,0x0ab50,0x04b60,0x0aae4,0x0a570,0x05260,0x0f263,0x0d950,0x05b57,0x056a0,
    0x096d0,0x04dd5,0x04ad0,0x0a4d0,0x0d4d4,0x0d250,0x0d558,0x0b540,0x0b5a0,0x195a6,
    0x095b0,0x049b0,0x0a974,0x0a4b0,0x0b27a,0x06a50,0x06d40,0x0af46,0x0ab60,0x09570,
    0x04af5,0x04970,0x064b0,0x074a3,0x0ea50,0x06b58,0x055c0,0x0ab60,0x096d5,0x092e0,
    0x0c960,0x0d954,0x0d4a0,0x0da50,0x07552,0x056a0,0x0abb7,0x025d0,0x092d0,0x0cab5,
    0x0a950,0x0b4a0,0x0baa4,0x0ad50,0x055d9,0x04ba0,0x0a5b0,0x15176,0x052b0,0x0a930,
    0x07954,0x06aa0,0x0ad50,0x05b52,0x04b60,0x0a6e6,0x0a4e0,0x0d260,0x0ea65,0x0d530,
    0x05aa0,0x076a3,0x096d0,0x04bd7,0x04ad0,0x0a4d0,0x1d0b6,0x0d250,0x0d520,0x0dd45,
    0x0b5a0,0x056d0,0x055b2,0x049b0,0x0a577,0x0a4b0,0x0aa50,0x1b255,0x06d20,0x0ada0)

var   solarMonth=new   Array(31,28,31,30,31,30,31,31,30,31,30,31);
var   Gan=new   Array("甲","乙","丙","丁","戊","己","庚","辛","壬","癸");
var   Zhi=new   Array("子","丑","寅","卯","辰","巳","午","未","申","酉","戌","亥");
var   Animals=new   Array("鼠","牛","虎","兔","龙","蛇","马","羊","猴","鸡","狗","猪");
var   solarTerm   =   new   Array("小寒","大寒","立春","雨水","惊蛰","春分","清明","谷雨","立夏","小满","芒种","夏至","小暑","大暑","立秋","处暑","白露","秋分","寒露","霜降","立冬","小雪","大雪","冬至")
var   sTermInfo   =   new   Array(0,21208,42467,63836,85337,107014,128867,150921,173149,195551,218072,240693,263343,285989,308563,331033,353350,375494,397447,419210,440795,462224,483532,504758)
var   nStr1   =   new   Array('日','一','二','三','四','五','六','七','八','九','十')
var   nStr2   =   new   Array('初','十','廿','卅','　')
var   monthName   =   new   Array("JAN","FEB","MAR","APR","MAY","JUN","JUL","AUG","SEP","OCT","NOV","DEC");

/**//*****************************************************************************
                                                                             日期计算
*****************************************************************************/

//======================================   传回农历   y年的总天数
function   lYearDays(y)   {
    var   i,   sum   =   348;
    for(i=0x8000;   i>0x8;   i>>=1)   sum   +=   (lunarInfo[y-1900]   &   i)?   1:   0
    return(sum+leapDays(y))
}

//======================================   传回农历   y年闰月的天数
function   leapDays(y)   {
    if(leapMonth(y))     return((lunarInfo[y-1900]   &   0x10000)?   30:   29)
    else   return(0)
}

//======================================   传回农历   y年闰哪个月   1-12   ,   没闰传回   0
function   leapMonth(y)   {
    return(lunarInfo[y-1900]   &   0xf)
}

//======================================   传回农历   y年m月的总天数
function   monthDays(y,m)   {
    return(   (lunarInfo[y-1900]   &   (0x10000>>m))?   30:   29   )
}

//======================================   算出农历,   传入日期物件,   传回农历日期物件
//                                                                               该物件属性有   .year   .month   .day   .isLeap   .yearCyl   .dayCyl   .monCyl
function   Lunar(objDate)   {

    var   i,   leap=0,   temp=0
    var   baseDate   =   new   Date(1900,0,31)
    var   offset       =   (objDate   -   baseDate)/86400000

    this.dayCyl   =   offset   +   40
    this.monCyl   =   14

    for(i=1900;   i<2050   &&   offset>0;   i++)   {
        temp   =   lYearDays(i)
        offset   -=   temp
        this.monCyl   +=   12
    }

    if(offset<0)   {
        offset   +=   temp;
        i--;
        this.monCyl   -=   12
    }

    this.year   =   i
    this.yearCyl   =   i-1864

    leap   =   leapMonth(i)   //闰哪个月
    this.isLeap   =   false

    for(i=1;   i<13   &&   offset>0;   i++)   {
        //闰月
        if(leap>0   &&   i==(leap+1)   &&   this.isLeap==false)
        {
            --i;   this.isLeap   =   true;   temp   =   leapDays(this.year);
        }
        else
        {
            temp   =   monthDays(this.year,   i);
        }

        //解除闰月
        if(this.isLeap==true   &&   i==(leap+1))   this.isLeap   =   false

        offset   -=   temp
        if(this.isLeap   ==   false)   this.monCyl   ++
    }

    if(offset==0   &&   leap>0   &&   i==leap+1)
        if(this.isLeap)
        {
            this.isLeap   =   false;
        }
        else
        {
            this.isLeap   =   true;   --i;   --this.monCyl;
        }

    if(offset<0){
        offset   +=   temp;   --i;   --this.monCyl;
    }

    this.month   =   i
    this.day   =   offset   +   1
}

//==============================传回国历   y年某m+1月的天数
function   solarDays(y,m)   {
    if(m==1)
        return(((y%4   ==   0)   &&   (y%100   !=   0)   ||   (y%400   ==   0))?   29:   28)
    else
        return(solarMonth[m])
}
//==============================   传入   offset   传回干支,   0=甲子
function   cyclical(num)   {
    return(Gan[num%10]+Zhi[num%12])
}

//======================   中文日期
function   cDay(d){
    var   s;

    switch   (d)   {
        case   10:
            s   =   '初十';   break;
        case   20:
            s   =   '二十';   break;
            break;
        case   30:
            s   =   '三十';   break;
            break;
        default   :
            s   =   nStr2[Math.floor(d/10)];
            s   +=   nStr1[d%10];
    }
    return(s);
}
//======================   中文月份
function   cMonth(m){
    var   s;

    switch   (m)   {
        case   1:
            s   =   '正月';   break;
        case   2:
            s   =   '二月';   break;
        case   3:
            s   =   '三月';   break;
        case   4:
            s   =   '四月';   break;
        case   5:
            s   =   '五月';   break;
        case   6:
            s   =   '六月';   break;
        case   7:
            s   =   '七月';   break;
        case   8:
            s   =   '八月';   break;
        case   9:
            s   =   '九月';   break;
        case   10:
            s   =   '十月';   break;
        case   11:
            s   =   '十一月';   break;
        case   12:
            s   =   '十二月';   break;
        default   :
            break;
    }
    return(s);
}

function   GetLunarDay(YearStr,MonthStr,DayStr)
{
    var   sDObj=new   Date(parseInt(YearStr),parseInt(MonthStr)-1,parseInt(DayStr));
    var   lDObj=new   Lunar(sDObj);           //农历
    return  cMonth(lDObj.month)+cDay(lDObj.day);
}
//获得农历结束