(San Francisco, CA)  --  Brandon Crawford belted a two-run homer as the red-hot Giants doubled up the Brewers, 4-2, in San Francisco.  Gregor Blanco and Brandon Belt plated a run apiece for the Giants, who have won six straight to move to within a half-game of the first-place Dodgers.  Chris Heston went seven innings to improve to 11-and-5.  Sergio Romo secured his second save.  Jonathan Lucroy knocked in a run and scored in the sixth for Milwaukee, which has dropped three in-a-row.  Kyle Lohse [[ lowsh ]] allowed all four runs to fall to 5-and-12.