Basically means the system will automatically identify the country and the city of the users IP address and then prompt a sample of random pictures of the users closest to that specific city.....can someone please explain in detail how i can incorporate this on my site?

PS:i tried "searching"....in the forum to see if this feature is already in place it can't seem to find it....if it is could someone tell me were to go,,,,let me rephrase,:),,could someone  point me in the right directiong to do i can  implement this?

Thanks