1 function convertCurrency(currencyDigits) {
2 var MAXIMUM_NUMBER = 1000000000000.00;
3
4 var CN_ZERO = "零";
5 var CN_ONE = "壹";
6 var CN_TWO = "贰";
7 var CN_THREE = "叁";
8 var CN_FOUR = "肆";
9 var CN_FIVE = "伍";
10 var CN_SIX = "陆";
11 var CN_SEVEN = "柒";
12 var CN_EIGHT = "捌";
13 var CN_NINE = "玖";
14 var CN_TEN = "拾";
15 var CN_HUNDRED = "佰";
16 var CN_THOUSAND = "仟";
17 var CN_TEN_THOUSAND = "万";
18 var CN_HUNDRED_MILLION = "亿";
19 var CN_SYMBOL = "人民币";
20 var CN_DOLLAR = "元";
21 var CN_TEN_CENT = "角";
22 var CN_CENT = "分";
23 var CN_INTEGER = "整";
24
25 var integral; // integral part
26 var decimal; // decimal part
27 var outputCharacters = ""; // result.
28 var parts;
29 var digits, radices, bigRadices, decimals;
30 var zeroCount;
31 var i, p, d;
32 var quotient, modulus;
33
34 if (currencyDigits != null) {
35 currencyDigits = currencyDigits.toString();
36 currencyDigits = currencyDigits.replace(/,/g, ""); // Remove comma delimiters.
37 currencyDigits = currencyDigits.replace(/^0+/, ""); // Trim zeros at the beginning.
38
39 if (Number(currencyDigits) < MAXIMUM_NUMBER) {
40 if (Number(currencyDigits) < 0) {
41 outputCharacters += "负";
42 currencyDigits = Math.abs(Number(currencyDigits)).toString();
43 }
44
45 parts = currencyDigits.split("."); // separate the number by decimal point
46 if (parts.length > 1) {
47 integral = parts[0];
48 decimal = parts[1];
49 decimal = decimal.substr(0, 2);// two decimal places
50 } else {
51 integral = parts[0];
52 decimal = "";
53 }
54
55 digits = new Array(CN_ZERO, CN_ONE, CN_TWO, CN_THREE, CN_FOUR, CN_FIVE, CN_SIX, CN_SEVEN, CN_EIGHT, CN_NINE);
56 radices = new Array("", CN_TEN, CN_HUNDRED, CN_THOUSAND);
57 bigRadices = new Array("", CN_TEN_THOUSAND, CN_HUNDRED_MILLION);
58 decimals = new Array(CN_TEN_CENT, CN_CENT);
59
60 if (Number(integral) > 0) {
61 zeroCount = 0;
62 for (i = 0; i < integral.length; i++) {
63 p = integral.length - i - 1;
64 d = integral.substr(i, 1);
65 quotient = p / 4;
66 modulus = p % 4;
67 if (d == "0") {
68 zeroCount++;
69 } else {
70 if (zeroCount > 0) {
71 outputCharacters += digits[0];
72 }
73 zeroCount = 0;
74 outputCharacters += digits[Number(d)] + radices[modulus];
75 }
76 if (modulus == 0 && zeroCount < 4) {
77 outputCharacters += bigRadices[quotient];
78 }
79 }
80 outputCharacters += CN_DOLLAR;
81 }
82
83 if (decimal != "") {
84 for (i = 0; i < decimal.length; i++) {
85 d = decimal.substr(i, 1);
86 if (d != "0") {
87 outputCharacters += digits[Number(d)] + decimals[i];
88 }
89 }
90 }
91 if (outputCharacters == "") {
92 outputCharacters = CN_ZERO + CN_DOLLAR;
93 }
94 if (decimal == "") {
95 outputCharacters += CN_INTEGER;
96 }
97 outputCharacters = "" + outputCharacters + "";
98 }
99 }
100 return outputCharacters;
101 }
