JS判断干支、生肖和星座

function MagicInfo( type,birth ){ 
	var tmpstr= birth.split('-')
	var y = (tmpstr[0]*1);
	var m = (tmpstr[1]*1);
	var d = (tmpstr[2]*1);
	var result = '';
	switch (type) { 
		case 'XZ':  //星座
			var XZDict = '摩羯宝瓶双鱼白羊金牛双子巨蟹狮子处女天秤天蝎射手';
			var Zone = new Array(1222,122,222,321,421,522,622,722,822,922,1022,1122,1222);
			if((100 * m + d) >= Zone[0] || (100 * m + d) < Zone[1]){
				var i=0;
			}else{
				for(var i=1;i<12;i++){ 
					if((100 * m + d) >= Zone[i] && (100 * m + d)< Zone[i+1])	break;
				}
			}
			result = XZDict.substring(2*i,2*i+2)+'座';
			break;
		case 'GZ': //干支
			var GZDict = ['甲乙丙丁戊己庚辛壬癸','子丑寅卯辰巳午未申酉戌亥'];
			var i= y -1900+36 ;
			result = GZDict[0].charAt(i%10)+GZDict[1].charAt(i%12);
			break;
		case 'SX': //生肖
			var SXDict = '鼠牛虎兔龙蛇马羊猴鸡狗猪';
			result = SXDict.charAt((y-4)%12);
			break;
	}
	return result;
}