Warning: Please include a link to the DD script in question in your post, in this case: http://www.dynamicdrive.com/dynamici...daccordion.htm. See this thread for the proper posting format when asking a question.
Not sure I understand the question actually. You'll have to elaborate. Sub menus can be open via a URL string by specifying the ID of its header class plus the position of the sub menus to open:
Code:
<a href="target.htm?mypets=0,2,3">Target Page (1st, 3rd and 4th headers expanded by default)</a>
Bookmarks