Commodity slump hits European shares, ECJ opinion lends support
* FTSEurofirst 300 down 0.6 pct after World Bank move
* Oil producers, miners lead declines amid commodities rout
* EU court gives support for ECB bond purchase programme (Adds detail, quote)
By Alistair Smout and Francesco Canepa
LONDON, Jan 14 (Reuters) - European shares fell on Wednesday, mirroring a slump in copper and oil prices after the World Bank cut its global growth forecast for this year.
However, shares trimmed losses after an adviser to Europe's top court said an ECB bond-buying programme was legal under some conditions, potentially smoothing the way for a widely anticipated quantitative easing package for the euro zone.
The FTSEurofirst 300 index of pan-European shares was down 0.6 percent at 1,367.69 points at 1104 GMT.
Oil majors BP and Total fell 2.8 and 1.6 percent, while commodity firm Glencore dropped 9.8 percent, the index's biggest faller.
Other miners such as Antofagasta, BHP Billiton and Rio Tinto fell between 5 percent and 9 percent. Continuación...