[jQuery] Superfish Richard Willis second tier static

[jQuery] Superfish Richard Willis second tier static


Hello,
I am using the Richard Willis version (The first two tiers of menu are
horizontally laid-out and the third vertical.) of the Joel Birch
Superfish (http://users.tpg.com.au/j_birch/plugins/superfish/richard-
willis-example/)
I have modified the CSS to create a tab link interface. The first
tier's <li> includes an 'active' class, which allows me to hide the
non active one's children.
See example here:
http://bym01.eduka.info/Byrnecut-Group/About-Byrnecut-Group.aspx
The page above is pure CSS without JS.
Now however, I need to modify the JS to do the same.
Here is a page with the JS switched on:
http://bym01.eduka.info/Byrnecut-Group.aspx
If anyone has any pointers that'd be super (pun intended!)