function number_format(number, decimals, dec_point, thousands_sep) {
                var i, j, kw, kd, km;
                if (isNaN(decimals = Math.abs(decimals))) { decimals = 2; }
                if (dec_point == undefined) { dec_point = ","; }
                if (thousands_sep == undefined) { thousands_sep = "."; }
                i = parseInt(number = (+number || 0).toFixed(decimals)) + "";
                if ((j = i.length) > 3) { j = j % 3; } else { j = 0; }
                km = (j ? i.substr(0, j) + thousands_sep : "");
                kw = i.substr(j).replace(/(\d{3})(?=\d)/g, "$1" + thousands_sep);
                kd = (decimals ? dec_point + Math.abs(number - i).toFixed(decimals).replace(/-/, 0).slice(2) : "");
                return km + kw + kd;
            }