NO.6 阿拉伯数字转中国大写金额JS(JavaScript方法)

<input type=text name=ACS onpropertychange="toCNY(this,CCS);">
<input type=text id=CCS style="border:0px" mce_style="border:0px" readonly>

function toCNY(fromField,toField)
{
var ss=fromField.value;
var sDispMsg = getChineseCurrencyString(ss);
if(sDispMsg==-1) alert("错误的金额!");
if(sDispMsg==-2) alert("太长的金额!");
toField.value=sDispMsg;
}

function toStdAmount(sAmount)
{
var sComma = //,/gi;
var sResult = sAmount.replace(sComma,"");
var iDotIndex = sResult.indexOf('.');
var iLength = sResult.length;
var toMatchNaNum = //D/;
if ((iDotIndex!=-1&&iLength-iDotIndex>3)
||toMatchNaNum.test(sResult.slice(iDotIndex+1,iLength)))
return -1;        //小数点后大于2位数 或 含有非数字字符
else
{
//将金额处理为标准的######.##形式 begin
if (iDotIndex==-1)
sResult = sResult+'.00';
else if (iDotIndex==0)
{
if (iLength-iDotIndex==1) sResult='0'+sResult+'00';
if (iLength-iDotIndex==2) sResult='0'+sResult+'0';
if (iLength-iDotIndex==3) sResult='0'+sResult;
}
else
{
if (iLength-iDotIndex==2) sResult=sResult+'0';
if (iLength-iDotIndex==1) sResult=sResult+'00';
}
//将金额处理为标准的######.##形式 end

//处理金额非前面的0 begin
var sTemp = "";
sTemp = sResult.slice(0,iDotIndex);
var iTemp = new Number(sTemp);
sTemp = iTemp.toString();
if (sTemp.length>16) return -2;
iDotIndex = sResult.indexOf('.');
//处理金额非前面的0 end

sResult = sTemp+sResult.slice(iDotIndex);    //返回标准的######.##形式的金额
return sResult;
}
}

function getChineseCurrencyString(sAmount)
{
var value = toStdAmount(sAmount);
if(value<0) return value;
var sCN_Num = new Array("零","壹","贰","叁","肆","伍","陆","柒","捌","玖");
var unit = new Array('元', '万', '亿', '万');
var subunit = new Array('拾', '佰', '仟');
var sCNzero = '零';

var result = "";

var iDotIndex = value.indexOf('.');

var sBeforeDot = value.slice(0, iDotIndex);
var sAfterDot = value.slice(iDotIndex);

var len = 0;
//before dot
len = sBeforeDot.length;
var i = 0, j = 0, k = 0; //j is use to subunit,k is use to unit
var oldC = '3';
var cc = '0';
result = unit[0] + result;

var oldHasN = false;
var hasN = false;
var allZero = true;
for (i = 0; i < len; i++) {
if (j == 0 && i != 0) {
if (!hasN)
{
if ((k % 2) == 0) result = result.slice(1);
}
else
{
if (oldC == '0') result = sCNzero + result;
}
result = unit[k] + result;
//oldC = '3';
oldHasN = hasN;
hasN = false;
}
cc = sBeforeDot.charAt(len - i - 1);
if (oldC == '0' && cc != oldC)
{
if (hasN) result = sCNzero + result;
}
if (cc != '0')
{
if (j != 0)
result = subunit[j - 1] + result;
var dig = '0';
dig = sCN_Num[cc];

if (dig == '0')
return false;
hasN = true;
allZero = false;
result = dig + result;
}
oldC = cc;
j++;
if (j == 4)
{
k++;
j = 0;
}
}
if (allZero) {
result = "零元";
}
else {
var bb = 0;
if (!hasN) {
bb++;
if (!oldHasN) {
bb++;
}
}
if (bb != 0)
result = result.slice(bb);
if (result.charAt(0) == '零')
result = result.slice(1);
}

//after dot
sAfterDot = sAfterDot.slice(1);
len = sAfterDot.length;
var corn = new Array('0','0');
var cornunit = new Array('角', '分');
var n = 0; //j is use to subunit,k is use to unit
var dig = '0';
corn[0] = sAfterDot.charAt(0);
if (len > 1)
corn[1] = sAfterDot.charAt(1);
else
corn[1] = '0';
if ((corn[0] ==  '0') && (corn[1] == '0'))
return result += '整';
else
if (allZero) result = "";
for (i = 0; i < 2; i++)
{
var curchar = corn[i];
dig = sCN_Num[curchar];

if (i==0)
{
if(result!=""||curchar!='0')
result += dig;
if(curchar!='0')
{
result += cornunit[0];
}
}
if (i==1&&curchar!='0') result = result+dig+cornunit[1];
}

return result;
}