Added some internal documentation comments to the custom map controls
Added START_X and START_Y JavaScript variables, indicating the center of the supported area.  Also, minor cosmetic mod to the page-search-settings button on the Search panel
* removed some unneeded code from LOCATION declaration (anchor coords, but no popup)

* in onLocationFound() fixed an issue that the "if outside supported area" code was being invoked on every locationfound event, causing the map to recenter every few seconds.  the recentering now only happens the first time (well, unless you have AUTO_RECENTER enabled, but that goes without saying)

* performBrowseMap() now uses START_X and START_Y instead of GPS location. doing a Browse is really doing a search, so supplying your own coordinates isn't really a Browse as much as a Near Me... and if you're out of the area that's not so great

And added a few notes about upcoming changes to popups
Replaced the popup bubbles on the map, with a slide-in panel at the bottom of the map page. Looks great.
Also added highlighting of the markers via CSS class.
So now bringing up info is quite attractive-looking, and requires no reconfiguration if fields change.
Removed some debueeing, so both EventLocations and Places will draw onto the map. Oops.
Added a X button to the #map_infopanel so it can be closed.

Also, added some padding to the #map_infopanel so it doesn't crowd the bottom