I am trying to get an accordion style menu to stay open when a link is clicked.

I am trying to get an accordion style menu to stay open when a link is clicked.

Let me see if I can explain this. The site is:  https://spraybooths-com.3dcartstores.com/  On the left side bar you will see a menu titled Our Products. The top two categories have sub cats and some of the subcats have further sub -cats under them. IF you open up two or three layers deep in one of these items, then click on an individual item the entire menu closed back down. I would like for it to stay open unless the user clicks on another expandable item. This site is build on the 3D cart store system, which I have only been exposed to for a few weeks as my new job has several sites on this system. I am trying to find a work around so I don't have to retype the entire menu since there are like 50 items in it counting sub-items. I want the sub items to remain open when a sub category is clicked on or an individual item in a sub category.

If you go to the url I gave above and view source you can see the coded page with all the javascript linked in and some scripts put directly in the head section of the page. The first link of the menu starts on line 153 of the code. The entire page is built in a table format.. 

If you need any other information from me please ask and I will give you as much info as I can to try and get this resovled. Thanks.