Using offline map file (any type like *.map or OSM or etc)

[Hamid]

I'm new to map development and know not very much about that. I programmed a map application with google API V3 but it is online. I need to change it to offline mode. It is not possible with google API. How can I use WebGL api to open a offline map file at browser? the web page will be at end user computer and I can control it with interface from inside of a delphi application.

  I only need to open a map file and then show some markers inside it. That's all.

  I appriciate if you provide a simple code where the api chooses the map file to show on browser. 

Thanks