Boost Mobile Sanyo Incognito phone charger help?

My dog got a hold of the charger that had came with my phone and chewed the wires up to where it wont charge anymore. I was wondering if you could buy just any charger anywhere by itself or does it have to be a specific kind? Would they give me one at the Boost Mobile store? Sorry if I sound like an idiot. I tried looking at sites but didn't get the results I wanted.