satnav - gps map feature in website

[gabrielkolbe]

Hi, maybe someone can give me some advice where to begin. I want to add a feature on my website, where somone can search for a property via gps - or satnav, i know this will include lontitude and latitudes, i have an idea how these work. I would guess you take a map, divide into a grid with minutes and degrees, then in som way insert these values in to a database, then. When someone does a query the place gets queried agains a database? does any one has any ideas??