function numberToChineseCurrency(n) {
var fraction = ['角', '分'];
var digit = ['零','壹','贰','叁','肆','伍','陆','柒','捌','玖'];
var unit = [['元','万','亿'],['','拾','佰','仟']];
var head = n < 0 ? '负' : '';
n = Math.abs(n);
var s = '';
for (var i = 0; i < fraction.length; i++) {
s += (digit[Math.floor(n * 10 * Math.pow(10, i)) % 10] + fraction[i]).replace(/零./, '');
}
s = s || '整';
n = Math.floor(n);
for (var i = 0; i < unit[0].length && n > 0; i++) {
var p = '';
for (var j = 0; j < unit[1].length && n > 0; j++) {
var d = n % 10;
p = digit[d] + unit[1][j] + p;
n = Math.floor(n / 10);
}
s = p.replace(/(零.)*零$/, '')
.replace(/^$/, '零')
+ unit[0][i] + s;
}
return head + s.replace(/(零.)*零元/, '元')
.replace(/(零.)+/g, '零')
.replace(/^整$/, '零元整');
}