Moving Background

Hi!

I have to make a game similar to "Color Switch" or Super Mario, that moves the background as the player moves forwards or backwards (or in the case of 'Color switch' up and down) -- (i.e. I want the effect such as when the camera follows a moving car, the frame's BG is moving in opposite direction to the car--something like that). For example in Super mario or 'Color switch', the background seems to move endlessly without a seeming end. How can i achieve this effect?? If you guys know any tutorials, have tips, or any input, i would appreciate it greatly.

Thanks!

Kasun.