* Euro slips on profit-taking after surge
* Some see more short-covering if resistance broken
* Soft U.S. jobless claims data weighs on dollar
* Yen hits 1-week high vs greenback
By Chikako Mogi and Hideyuki Sano
TOKYO, Jan 14 (Reuters) - The euro succumbed to light profit-taking on Friday, a day after staging its biggest surge in six months on solid debt sales by Spain and tough talk on inflation by the chief of the European Central Bank.
Speculation that European policy-makers may top up their war chest against attacks on euro zone sovereign debt is adding fuel to short-covering even though many market players suspect worries about the solvency of peripheral euro zone members will persist.
"The euro's latest rise is nothing more than short-covering from overselling late last year on an excessively bearish view on the euro zone. Given that the fiscal problems in the region are unresolved, investors will be cautious about chasing the currency higher," said Tsutomu Soma, manager of foreign securities at Okasan Securities.
The euro slipped 0.2 percent in Asia to $1.3330 <EUR=>, after climbing as high as $1.3383 the previous day.
The single currency had risen more than 3 percent from a four-month low of $1.2960 marked at the start of the week, making it ripe for profit-taking.
Its 55-day moving average, which was $1.3389 on Thursday and $1.3378 on Friday, is serving as immediate resistance, though a break of that level could spark another wave of short-covering.
If that happens, levels just above $1.34 could be the next hurdle, where it has a 38.2 percent retracement of the November-January slide as well as an Ichimoku cloud base.
The euro also dropped 0.5 percent against the yen to 110.11 yen <EURJPY=R> as Japanese exporters took advantage of its rise to a three-week high of 110.67 yen on Thursday to sell the currency.
But the common currency did less badly on other crosses.
It stood at 1.2855 Swiss franc <EURCHF=R>, not far from Thursday's one-month high of 1.2885 as the franc comes under pressure ahead of a meeting later in the day between the Swiss government and representatives from Swiss business associations, banks and trade unions to discuss the implications of the strong franc.
The euro also stayed close to a one-month high against the Australian dollar <EURAUD=R>.
SPAIN DEMAND
Strong demand in Spain's bond auction on Thursday, a day after a solid Portuguese debt sale, helped ease pressure on peripheral bond markets for now. [
]ECB President Jean-Claude Trichet also said prices needed to be monitored very closely after euro zone inflation jumped last month, hinting the bank could raise interest rates to contain inflation even while the bloc is gripped by a debt crisis. [
]His comments surprised market players, who had expected the bank to take a more dovish line at a time when some euro zone countries are facing strains in fund-raising.
Analysts said the euro may see some support on speculation that European policy-makers could be ready to increase the size and scope of a rescue fund.
German Finance Minister Wolfgang Schaeuble said on Thursday that it was too early to talk about the size of a permanent European bailout fund and that debate about boosting the current fund was not realistic.
However, he did say he was open to discussion about helping the existing fund make full use of its potential resources. [
]Although Germany has repeatedly rejected in public calls to extend the 440 billion euro ($570.3 billion) European Financial Stability Facility, Berlin has been discussing the possibility with its partners behind the scenes. [
]Some market players also said weak U.S. jobless claims data had hurt the dollar, indirectly helping the euro. Initial jobless claims rose to a 10-week high and sent U.S. bond yields lower. [
]"When you look at the market yesterday, the dollar was broadly weak after the initial jobless claims data. So you could argue that the market may be starting to focus on the U.S. economy, at least temporarily," said Junya Tanase, a strategist at J.P. Morgan Chase Bank.
Lower U.S. bond yields helped bring down the dollar to a one-week low of 82.47 yen <JPY=>, not far from the bottom of the ichimoku cloud, which will sit at 82.31 yen until the middle of next week.
A break below the cloud is considered a major bear signal.
As the greenback fell broadly after the data, the index of the dollar against a basket of currencies <.DXY> <=USD> stood at 79.20, not far from the bottom of its trading band since December at 78.775.
DATA RAFT
While many market players expect the dollar to be supported around December lows, a minority think it may come under pressure if a raft of U.S. data due later in the day, including retail sales and consumer prices, fall short of market expectations.
Daisuke Uno, chief strategist at Sumitomo Mitsui Banking Corp, said the euro could test its December peak of $1.35 and that the dollar could trouble a low of 80.93 yen hit at the start of this month.
"It would be futile to attempt to keep selling the euro on the debt crisis when Europe already has a safety net. I expect broad selling in the dollar," Uno said. (Additional contribution from Reuters FX analysts Krishna Kumar in Sydney and Rick Lloyd in Singapore; Editing by Joseph Radford)