This is the list of things you won't find documented elsewhere, and the answers to questions that have either never been asked or not been asked often enough to end up in the FAQ.
Rob Delaney shared some info about HTTPS connections:
Due to the nature of https connection, when jsmenu is running over a https, every time an icon is clicked all the images are re-downloaded. This is due basically to the fact that http is default pragma public, and https is default pragma private.
If you added (using mod_headers in apache) the directive header public then this will stop this occuring and the tree menu will go much faster.
For specifics on how to achieve caching with HTTPS on Apache see https://webrats.ece.rmit.edu.au/bugzilla/long_list.cgi?buglist=5
Microsoft Internet Explorer has methods available for opening modal dialog windows, see for instance the showModalDialog() reference.
Jane Koch tested running the treemenu in such a window, and it worked well. Just remember to create the necessary frameset.
David Favis-Mortlock wrote to me about the ad-blocking feature of ZoneAlarm Pro:
I don't know if anyone else has noted this yet, but the ad-blocking feature that is new with v3.0 of Zone Alarm Pro firewall must have 'Block pop-up/pop-under' ads set to OFF. If it isn't, TreeMenu will not load properly.
Every now and then I get questions about languages quite different from English. I never considered whether the menu supported RTL-directed languages before Thamir Abdullatif mailed me and asked. Together we came up with the following solution on how to make the menu support RTL-languages:
align="left" in mtmcode.js and change it to align="right"For more information about the DIR and LANG attributes in HTML see Language information and text direction in the HTML 4.01 recommendation.
Vicente Domingues provided information as to why IE reloaded all images in the tree menu after a new window had been opened. Message 1683 on the mailing list describes how to fix it. Basically, check to make sure your server sends out a correct Expires-header with the date set to sometime in the future.