Posted at 14:34h in The Friday BriefDespite another week of lackluster news from the economy, the S&P 500 and the Dow Jones Industrial Average are headed for their seventh straight week of gains. The Dow has declined only 5 days out of the last 30. Record takeovers so far this year are steadily driving stock prices higher. Today’s prices are up on two more takeovers and a surprise increase in consumer confidence. The Reuters/University ofMichigan's preliminary index of sentiment rose to 88.7% this month from 87.1% in April. It was the first increase in four months as strength in the labor and stock markets overcame record gasoline prices.