将数字转换成大写的人民币表达式的js函数

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  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;  }  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;  }  return ChineseStr;}