// JavaScript Document
var animalArr = ['鼠','牛','虎','兔','龙','蛇','马','羊','猴','鸡','狗','猪'];
var constellationArr = ['水瓶座','双鱼座','白羊座','金牛座','双子座','巨蟹座','狮子座','处女座','天秤座','天蝎座','射手座','摩羯座'];
var weburl = "space.a8.com";

function get_animal(year,month,day) {
	if(!year) year = 1800;
	sDObj = new Date(year,month-1,day);    //当月一日日期
	lDObj = new Lunar(sDObj);     //农历    //农历年
	return (lDObj.year-1900)%12;
}

function get_constellation(month,day) {
	month = Number(month);
	day = Number(day);
	if (day <= 22){
		if (1 !== month){
			constellation = month-2;
		}else{
			constellation = 11;
		}
	} else {
		constellation = month-1;
	}
	return constellation;
}
function $F(a)
{
	return document.getElementById(a).value;	
}
function an_con_change() {
     var a = get_animal($F('by'),$F('bm'),$F('bd'));
	 if(a==-1)
	 {
	 	document.getElementById('animalimg').src='/style/k/an_'+a+'.gif';
	 	document.getElementById('animaltxt').innerHTML = "未知";		 
	 }
	 else
	 {
	 	document.getElementById('animalimg').src='/style/k/an_'+a+'.gif';
	 	document.getElementById('animaltxt').innerHTML = animalArr[a];
	 }
	 var a = get_constellation($F('bm'),$F('bd'));
	 if(a==-2)
	 {
	 	document.getElementById('conimg').src='/style/k/con_'+a+'.gif';
		document.getElementById('contxt').innerHTML = "未知";		 
	 }
	 else
	 {
	 	document.getElementById('conimg').src='/style/k/con_'+a+'.gif';
		document.getElementById('contxt').innerHTML = constellationArr[a];
	 }
}


function an_con_change_space_index(year,month,day) {
	if(year !=""){
		var a = get_animal(year,month,day);
		document.getElementById('animalimg').src='/style/k/an_'+a+'.gif';
		document.getElementById('animaltxt').innerHTML = animalArr[a];
	}
	if(month !="" && day !=""){
		var a = get_constellation(month,day);
		var starnum = a+1;
		document.getElementById('conimg').src='/style/k/con_'+a+'.gif';
		document.getElementById('contxt').innerHTML = constellationArr[a];
		document.getElementById('starurl').innerHTML = '<a href="/my/star/star,'+starnum+'.html"><img src="http://img.yy.com/y3/img/regweb/star_b'+starnum+'.gif" align="absmiddle" /></a>';
	}
	
}

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,
0x06ca0,0x0b550,0x15355,0x04da0,0x0a5b0,0x14573,0x052b0,0x0a9a8,0x0e950,0x06aa0,
0x0aea6,0x0ab50,0x04b60,0x0aae4,0x0a570,0x05260,0x0f263,0x0d950,0x05b57,0x056a0,
0x096d0,0x04dd5,0x04ad0,0x0a4d0,0x0d4d4,0x0d250,0x0d558,0x0b540,0x0b6a0,0x195a6,
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,
0x14b63);
/*****************************************************************************
日期计算
*****************************************************************************/

//====================================== 返回农历 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));
}

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

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

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

function Lunar(objDate) {
	var i, leap=0, temp=0;
	var offset   = (Date.UTC(objDate.getFullYear(),objDate.getMonth(),objDate.getDate()) - Date.UTC(1900,0,31))/86400000;
	for(i=1900; i<2050 && offset>0; i++) { 
	    temp=lYearDays(i); offset-=temp; 
	}

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

	this.year = i;

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

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

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


function test(y,m,d) {
    sDObj = new Date(y,m-1,d);    //当月一日日期
	lDObj = new Lunar(sDObj);     //农历
	lY    = lDObj.year;           //农历年
	lM    = lDObj.month;          //农历月
	lD    = lDObj.day;            //农历日
	lL    = lDObj.isLeap;         //农历是否闰月
}