Visiting germany & switzerland?

so my family and i are going to be traveling around europe this summer, but we're most probably going to be starting out in Zurich. My dad lived there for five years and can still kind of speak schweizdeutsch. i think that's what it's called. i'm excited to go there, but i want to learn the language..are the any websites that will teach me schweizdeutsch or just deutsch? other than open dictionaries, and translators. i actually want to know sentences and stuff. :)