European Factors to Watch-Shares to open steady, eyes on U.S. shutdown

LONDON, Oct 3 (Reuters) - European shares headed for a steady open on Thursday, with uncertainty over the impact of a prolonged U.S. government shutdown offset by strong economic data from China. Markets were cautious given the likely impact of the shutdown on talks to raise the U.S. debt ceiling by mid-October, with analysts saying failure to do this would push the world's biggest economy into default and hurt the pace of economic recovery. But an upbeat survey on China's huge services