UPDATE: Total redo. Had to make initial page faster. Using JSON (and some tricks), rendering is now 30x faster - typical load time should be less than a one second. Also fixed some bugs and added some enhancements. Even works in IE 9-11. Good Lord!
Had to update php up from version 5.2 (old as hell) to at least 5.6, but is now compatible up to 7.2. Also, made more mobile friendly. Cut a lot of fat and a lot of bad coding. Overall, much more solid and secure. COOL!