Some ideas

[d0d0]

That would be great idea to rewrite whole app to some framework- backend and frontend. Because after a while it will be unsustainable.

• create some registration, login and flighbook
• manage own gliders
• create and manage competitions
• if there is a random CN that would be great to set it manually just for me or competition
• echoing whole page may be slower than dropping it out of php and also readability of code is better :). Referring to http://php.net/manual/en/language.basic-syntax.phpmode.php
• add some points of interest on map- airports, restricted areas...
• refactor code and translate some parts to english :)