Lehigh Valley Live – Pennsylvania cut heavily into New Jersey’s gambling revenues with the opening of its own casinos over the last 7 1/2 years. In November, New Jersey struck back with the introduction of online gambling. Pennsylvania casinos in the eastern part of the state — including Sands Casino Resort Bethlehem — get a significant portion of their business from New Jersey residents. But have the four months of online gambling in New Jersey cut into Pennsylvania’s profits? Officials say it’s too early to tell. Pennsylvania gaming revenues have been largely on the decline since New Jersey’s online gambling…