title: SDL blitting surface on surface
body: <p>Me and my friends are working on a game project, and we seem to have hit a wall. We have a system, which takes the SDL RGB surface from a namespace in different header file. We blit it to the screen, (SDL_SetVideoMode), then we blit one more from another namespace header file and we blit the second on the same screen. It overwrites the screen and we can't see the first one surface..</p>
  
  <p>Any ideas how to blit two surfaces to screen one on another?</p>