This hack allows you to show and hide categories using toggled divs - not a copy of the expandable categories hack! I got it working from some help from another b2evo person, but thought it would be useful for others as a hack. I have the hack working on my site in the sidebar - works for version 1.10.
This works great on 2x!
I had to rename the function “hide” instead of toggle (as said in the forum topic) but now everything is fine!
Thank you :o)