NEW YORK, Feb 6 - The dollar fell 1 percent against the euro, sterling and Swiss franc on Friday, extending losses after a weaker-than-expected January U.S. payrolls report. U.S. payrolls expanded by 112,000 in January, below consensus forecasts for a 150,000. The dollar fell as far as $1.2682 per euro and 1.2349 Swiss francs in the wake of the data. It also fell against the British pound, hitting a two-week low at $1.8518 . The euro's leap against the dollar also lifted it 1 percent to a two-week high against the yen .//