(Hillsboro, OR)  --  A five-year-old girl is in critical condition, after being hit by a car while in a crosswalk in Hillsboro.  Police say a woman and her two children were hit while crossing Southeast Johnson Street near Southeast 75th Avenue yesterday morning.  The younger sibling was in a stroller, but suffered only minor injuries along with her mother.  Police say the driver remained at the scene and cooperated with officers.