1) Script Title: tree menu (Simple Tree Menu #1 (persist enabled)

2) Script URL (on DD): http://www.dynamicdrive.com/dynamicindex1/navigate1.htm

3) Describe problem:
i want to do this just in Simple Tree Menu #1 (persist enabled). when i click on folder 1, the folder 2 get close automatically. also OVERHAND .

i want this because i don't want that my menu get longer and my table's height get increase .

Please help me in this issue.