XML-Driven Menu Help

hi guys
I got the codes for XML Flash dropdown menu from the very popular
http://www.kirupa.com/developer/actionscript/xml_dropdown_menu.htm
tutorial

i have gotten most of the parts working nicely but now i need one last enhancement
currently the main menu items will revert back to its original state the moment my mouse leaves it
I need the main navigation item to remain in the “rollover-ed” while the sub menu opens
(the main nav item has to have the white background and blue text while the bottom menu is opened)
please refer to my attached main_menu.jpg to have a clearer view of what i mean

I searched through the forums and found this thread


I have tried the method mentioned but it doesnt seem to work for me

:hr::hr::hr::hr::hr::hr::hr::hr::hr::hr::hr::hr:
Is there anyone who can help me?
thanks in advance