nothing according to wiki!
"Hot dogs are also called frankfurters, or franks for short, named for the city of Frankfurt, Germany where sausages in a bun originated, similar to hot dogs, but made exclusively of pork. Another term for hot dogs is wieners or weenies, referring to the city of Vienna, Austria, whose German name is "Wien", home to a sausage made of a mixture of pork and beef. Hot dogs are sometimes derisively called tube steaks.[1] In Australia, the term frankfurt is used rather than frankfurter. In the German speaking countries, except Austria, hot dog sausages are generally called Wiener or Wiener W�rstchen (W�rstchen means "little sausage"). In Swiss German, it is called Wienerli, while in Austria the terms Frankfurter or Frankfurter W�rstel are used.
In the United Kingdom the term hot dog refers to the combination of sausage and bun, with the terms frankfurter or 'hot dog sausage' being more common terms for the sausage itself. As such hot dogs are sometimes made with British sausages, typically cooked by grilling or frying. When prepared using a frankfurter they may be sold and marketed as German or American-style hot dogs."