how to add a class to a child unordered list?

[saturnstroll]

I've successfully added a few classes to the first ul in wordpress' template tag: wp_page_menu,
however, I haven't been able to add a class to the child ul nested in the first li.
Anyone see what is missing?

1.function add_menuclass($ulclass) {
2.return preg_replace('/<ul>/', '<ul class="clearfix rMenu-hor rMenu">', $ulclass, 1);
3.}
4.function add_sub_menuclass($ulchildclass) {
5.return preg_replace('/<ul>/', '<ul class="rMenu-expand">', $ulchildclass, 2);
6.}
7.add_filter('wp_page_menu','add_menuclass','add_sub_menuclass');

I entered "2" at the end, see:

1.$ulchildclass, 2);

I tried adding a div as 'TheFrosty' suggested in the comments on this tutorial http://themeshaper.com/adding-class-wordpress-page-menu/, but no go.

Anyone have a helpful idea?

[saturnstroll]

Problem solved:
http://themehybrid.com/support/topic/adding-class-to-child-ul-in-wp_page_menu