The U.S. dollar slipped to around the 77-yen line Thursday morning as the Japanese currency and the euro were bought back on the heels of overnight declines triggered by the poor results of a German debt auction. At noon, the dollar was quoted 77.05-10 yen, compared with Wednesday\'s 5 p.m. quotes of 77.27-37 yen in New York. Japanese financial markets were closed Wednesday for a public holiday. The euro fetched 1.3373-3379 dollar and 103.05-07 yen against 1.3338-3348 dollar and 103.16-26 yen in New York late Wednesday.