Asian shares hang on to gains, commodities battered

By Hideyuki Sano TOKYO (Reuters) - Asian shares were set to hold on to this week's gains, while the dollar took a breather on Friday after stepping back from seven-month highs as investors grappled with the prospects of higher U.S. borrowing costs and slower global economic growth. Commodity prices were pressured, with copper near 6-1/2-year lows and a major sea freight index hitting its lowest level on record, underscoring worries over slackening world demand. MSCI's broadest index of Asia-Paci