- Fixed base map image path to work with mod_perl.

- Added logging to file of execution times.

- Added support for filtering by eprint ID. ...

- Moved hit type filtering into SQL query where it belongs.

- Added switch to limit type of hits displayed (download vs. abstract). ...

- Added no-cache headers to all files.
- Implemented colour blending for both GD and CSS maps (but only when both
  downloads & abstracts are displayed).
- Removed extraneous content from web pages.
- Rearranged timing calculation for Google map.
- Updated documentation for Google map XML output.

- Implemented back end script for generating CSS maps. ...

- Made code more consistent across all versions.
- Finished CSS map timing code.
- Changed all .html => .php.
- Made styling of all web pages more consistent.
- Included lat/long in hash key for all cities (not just unknown) because
  there may be several different lat/long combinations that map to the same
  city name.

- Fixed missing semicolon (where did that come from???).

- Simplified timing code. ...

- Shifted "Loading" message to static HTML.

- Added PHP to calling web pages. ...

- Now uses PHP microtime() function to calculate start time.
- Made start time an argument to the final JavaScript load function.
- Parameterised number of entries to retrieve from database.
- Added counts of unmappable IP addresses.
- Changed "num_IPs" to "num_entries".
- Corrected count of distinct IP addresses (was counting duplicates).

- Got page generation timing working for GD map. ...

- Fixed incorrect map generation timing in GD map.
- Changed map sizes to be 1024 pixels wide.
- Turned Google map XML generator into a CGI.
- Cleaned up page generation timing in Google map.
- Removed obsolete XML data file.

- Renamed "coordinates" to "gd_map". ...

- Added JavaScript and HTML for GD map.
- Finished off Google map timing code.
- Updated layout of web pages.

- Generalised #! line.

- Added hit plotting script.