JS实现 阿拉伯数字金额转换为中文大写金额 可以处理负值

//************************* 把数字金额转换成中文大写数字的函数(可处理负值) *********************************//function changeNumMoneyToChinese(money){    var cnNums = new Array("零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖"); //汉字的数字    var cnIntRadice = new Array("", "拾", "佰", "仟"); //基本单位    var cnIntUnits = new Array("", "万", "亿", "兆"); //对应整数部分扩展单位    var cnDecUnits = new Array("角", "分", "毫", "厘"); //对应小数部分单位    var cnInteger = "整"; //整数金额时后面跟的字符    var cnIntLast = "元"; //整型完以后的单位    var maxNum = 999999999999999.9999; //最大处理的数字    var IntegerNum; //金额整数部分    var DecimalNum; //金额小数部分    var ChineseStr = ""; //输出的中文金额字符串    var parts; //分离金额后用的数组，预定义        var Symbol="";//正负值标记    if (money == "") {        return "";    }    money = parseFloat(money);    if (money >= maxNum) {        alert('超出最大处理数字');        return "";    }    if (money == 0) {        ChineseStr = cnNums[0] + cnIntLast + cnInteger;        return ChineseStr;    }    if(money<0)    {        money=-money;        Symbol="负 ";            }    money = money.toString(); //转换为字符串    if (money.indexOf(".") == -1) {        IntegerNum = money;        DecimalNum = '';    } else {        parts = money.split(".");        IntegerNum = parts[0];        DecimalNum = parts[1].substr(0, 4);    }    if (parseInt(IntegerNum, 10) > 0) { //获取整型部分转换        var zeroCount = 0;        var IntLen = IntegerNum.length;        for (var i = 0; i < IntLen; i++) {            var n = IntegerNum.substr(i, 1);            var p = IntLen - i - 1;            var q = p / 4;            var m = p % 4;            if (n == "0") {                zeroCount++;            }            else {                if (zeroCount > 0) {                    ChineseStr += cnNums[0];                }                zeroCount = 0; //归零                ChineseStr += cnNums[parseInt(n)] + cnIntRadice[m];            }            if (m == 0 && zeroCount < 4) {                ChineseStr += cnIntUnits[q];            }        }        ChineseStr += cnIntLast;        //整型部分处理完毕    }    if (DecimalNum != '') { //小数部分        var decLen = DecimalNum.length;        for (var i = 0; i < decLen; i++) {            var n = DecimalNum.substr(i, 1);            if (n != '0') {                ChineseStr += cnNums[Number(n)] + cnDecUnits[i];            }        }    }    if (ChineseStr == '') {        ChineseStr += cnNums[0] + cnIntLast + cnInteger;    } else if (DecimalNum == '') {        ChineseStr += cnInteger;    }    ChineseStr = Symbol +ChineseStr;        return ChineseStr;}