Hello Experts, I'm wondering if it's easy to implement the "javascript expand collapse" in the published page. For example: in this page: http://en.wikipedia.org/wiki/Emacs One can click the [hide] or [show] beside the Contents. Probably in the org file, we can use: **** A Detailed section [+] to indicate this collapse? [This might be work for Sebastian again :-), but I think this feature shall be useful. ] Thanks! Xin