I believe adding salt to the water will change the boiling point. Boils at a higher temperture without added pressure. Just like if you put salt on ice it melts, the salt raises the freezing point.
SA Friday, correct me if I'm wrong, seems like you payed attention in school. Thermodynamics, chemistry and the likes all make my head hurt so I have blocked those classes out of my memory as much as possible...5 years of studying engineering and I don't remember much.