Using My Own Map Graphic with Location Services

I am looking for some direction to get started with creating my own map graphic. Basically, I want to have a map of different Disney World parks, using my own maps of WDW, but still use location services to allow GPS current location and pinning on the map.

Keyword: leaflet. You will need to build your own layers of the Disney World parks.

PS: Did you look into the legal aspects of this?

Thank you for the quick response. I have not yet looked into the legal aspects, though I figured (aka: I ASSumed) it was probably okay given the number of mobile apps currently on the app stores that do it already. Though I will certainly look into it before i invest much into the idea.

Thanks again!