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