minor changes, mostly documentation

source/Ox/js/Format.js

@@ -483,8 +483,9 @@ Ox.formatOrdinal <f> Formats a number as an ordinal
 @*/
 Ox.formatOrdinal = function(num) {
     var str = num.toString(),
-        end = str[str.length - 1],
-        ten = str.length > 1 && str[str.length - 2] == '1';
+        len = str.length
+        end = str[len - 1],
+        ten = len > 1 && str[len - 2] == '1';
     if (end == '1' && !ten) {
         str += 'st';
     } else if (end == '2' && !ten) {
@@ -524,6 +525,8 @@ Ox.formatString <f> Basic string formatting
     'foobar'
 @*/
 
+// fixme: Ox.formatRoman() ?
+
 Ox.formatString = function (str, obj) {
     return str.replace(/\{([^}]+)\}/g, function(str, match) {
         return obj[match];