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/*
Author: Robert Hashemian
http://www.hashemian.com/
You can use this code in any manner so long as the author's
name, Web address and this disclaimer is kept intact.
********************************************************
Usage Sample:
<script language="JavaScript" src="http://www.hashemian.com/js/NumberFormat.js"></script>
<script language="JavaScript">
document.write(FormatNumberBy3("1234512345.12345", ".", ","));
</script>
*/
// function to format a number with separators. returns formatted number.
// num - the number to be formatted
// decpoint - the decimal point character. if skipped, "." is used
// sep - the separator character. if skipped, "," is used
function formatCurrency(num, decpoint, sep) {
// check for missing parameters and use defaults if so
num = isNaN(num) || num === '' || num === null ? 0.00 : num;
num=parseFloat(num).toFixed(2);
if (arguments.length == 2) {
sep = ",";
}
if (arguments.length == 1) {
sep = ",";
decpoint = ".";
}
// need a string for operations
num = num.toString();
// separate the whole number and the fraction if possible
a = num.split(decpoint);
x = a[0]; // decimal
y = a[1]; // fraction
z = "";
if (typeof(x) != "undefined") {
// reverse the digits. regexp works from left to right.
for (i=x.length-1;i>=0;i--)
z += x.charAt(i);
// add seperators. but undo the trailing one, if there
z = z.replace(/(\d{3})/g, "$1" + sep);
if (z.slice(-sep.length) == sep)
z = z.slice(0, -sep.length);
x = "";
// reverse again to get back the number
for (i=z.length-1;i>=0;i--)
x += z.charAt(i);
// add the fraction back in, if it was there
if (typeof(y) != "undefined" && y.length > 0)
x += decpoint + y;
}
return x;
}