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Formatting large numbers with a javascript function (See related posts)

This function will format a large number like 23000456 to 23,000,456

function addCommas(nStr)
{
	nStr += '';
	x = nStr.split('.');
	x1 = x[0];
	x2 = x.length > 1 ? '.' + x[1] : '';
	var rgx = /(\d+)(\d{3})/;
	while (rgx.test(x1)) {
		x1 = x1.replace(rgx, '$1' + ',' + '$2');
	}
	return x1 + x2;
}

        example = addCommas(example);
to javascript by Booma on Thu Jan 25 14:59:44 -0500 2007

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