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'); } ...