Did I break my auto focus device from my camera?

Okay so I was taking pictures when all of a sudden the device used to zoom and clearify and stuff got loose and now the slider to change how clear or blurry the picture is, and its as if it broke somthing and its like sliding faster than the paced usual way. By the way its a nikon D100 and the af is 35-70mm f3.3-f4.5 MACRO ZOOM. Its like making pictures brighter too and less clear? Or is it just me?

It sounds like your lens may be broken, or at least the contacts between the lens and the camera. The actual process of focusing actually happens inside the lens.
Also, the bright images may be due to the aperture remaining open in the lens and not adjusting as it should when you take a picture.step one would be to try another lens and see if you still have the problem.

Your dslr may be broken…
or
you could of changed your shutter speed, or aperture.these effect how much light gets into your shot and how long your lens allows the light in. (when you get super bright pics where you can't see anything/too dark of pics) (as well as serious motion blur if there's movement while taking a photo standiing still)

if anything, see how your lens works manually. If you can manually focus you shold be fine-plus you can get more artsy