Usd/chf - 0.9882 ... Swiss National Bank head Jean-Pierre Roth said cooperation by central banks has worked well to mitigate tensions on money markets but only commercial banks can restore the trust needed to overcome the credit crisis. U.S. currency rebounded versus the Swiss franc on cross unwinding in chf, however, offers are reported at 0.9910/20 n further out at 0.9940/50. On the downside, bids are noted at 0.9830/35 n 0.9790/00.