Many Changes. Main change: comments in scrollable side bar.
Another large commit. Main change is now comments for hotspots appear in the side bar in replace of the list of hotspots. It all seems to work very intuitively.
Added the user's location as green marker number 0.
Added a tonne of javascript and converted all comment related stuff to javascript. I'm expecting to to be a little hard to understand how everything works first time around, let me know if you want me to explain.
Improved usability (I think) with things like clicking on markers taking you to that marker and displaying the info and comments for that hotspot.
Note I have removed two pages from use, and therefore the main folder, being hotspot.php and whichever one ended in .orig.php. These have been moved into the new folder old-files.
Things that still need to be done: Check all user input and validate, probably removing all single and double quotes to be safe. And the thumbs-up/thumbs-down malarcky.