Even with the Buster Posey page so abruptly ripped out, the Giants demonstrated they still knowhow to craft a textbook victory Friday night in beating Colorado3-1. Seven innings of one-run, four-hit ball from starter Matt Cain.Three runs of offense, highlighted by Cody Ross' two-run double anda follow-up double by rookie local hero Brandon Crawford. A sterling eighth inning of relief work from Javier Lopez.