Fire displaces Janesville family

A Janesville family of four, and their pets, may be alive today thanks to a working smoke detector.  Authorities say the family was alerted to a fire, in their attached garage at 1516 Manor Drive, a little before midnight Wednesday.  Firefighters were on the scene for about four hours.  Damage is extensive and the family will need a new place to stay.   Authorities are investigating the cause.