As my site is still under construction, I have for now only a very basic implementation of the map (with static data) - to get the try and feel for the dynamic integration with a database.
The example can be found under:
lima_info_overview.php .
In the middle of the page is section called "Map of Lima" (clicking on the small map will open a new browser window with the real google map).
All related files are under:
wagmp_map_1.php
wagmp_maps.js
promaps_geocache_php.php
Thanks for having a look!