UPDATE 1-Czech PM says to name govt by Dec 15, deal or not

(adds Social Democrat quote after meeting)

PRAGUE, Dec 6 (Reuters) - Czech Prime Minister Mirek Topolanek said on Wednesday he would name a government by the end of next week even if he fails to reach an agreement with leftists for their coalition support.

A June election handed 100 seats to leftists and 100 to centrist and right-wing parties in the lower house and nearly six months of political deadlock has ensued.

A minority cabinet of Topolanek's right-wing Civic Democrats has lost a confidence vote, and the party's attempt to form a temporary four-party coalition with the Social Democrats, centrist Greens and Christian Democrats failed when the leftists refused to take part.

"We set the end of next week as a final deadline for this attempt. We will either have a government with the negotiated support (of partners including the Social Democrats) or a government without a secured majority (in parliament)," Topolanek said after meeting President Vaclav Klaus.

Topolanek said it was unclear what the set up of the government would be, though not all four parties had to take cabinet seats.

The four parties met briefly on Wednesday, when the Civic Democrats presented a draft policy programme of seven main points to the Social Democrats.

"From the materials I have seen, there are compromises which could bring us to a positive result," Social Democrat Bohuslav Sobotka said after the meeting.

The Social Democrats have pushed for a three-party solution involving themselves, the Civic Democrats and the Christian Democrats that would rule for three years and carry out reforms to allow the country to adopt the euro by 2012.

If the Social Democrats back out of the talks, Topolanek is likely to form a three-party coalition with the Christian Democrats and the Green Party.

He would need at least one leftist deputy to cross the floor to win a confidence vote in parliament, an unlikely occurrence.

Topolanek, whose party has favoured an early election, has said the length of any coalition government mandate would depend on the range of reforms the parties agreed on.

If Topolanek's second attempt to form a government fails, the house speaker chooses a third candidate. The current house speaker is a Social Democrat, though he was elected under an agreement to step down before choosing a new candidate.

If three attempts to form a government fail, the president may call an early election. ((Reporting by Alan Crosby; editing by Elizabeth Piper: prague.newsroom@reuters.com; Reuters Messaging: alan.crosby.reuters.com@reuters.net; +420 224 190 477))

Keywords: CZECH POLITICS/