As for consultations with the president, Milanovic said on Tuesday that all four parties in the SDP-run opposition coalition would come to the talks.

Responding to questions from the press outside the SDP main offices about PM Kosor's invitation for talks, Milanovic said he had known nothing as he had not received any invitation of that kind.

He again accused the premier of failing to appear in the parliament, which was requested by opposition parties, and of failing to refute the government spokesman's statement that the Opposition was behind the financing of violence at recent protest rallies.

Milanovic said that she had closed the door to dialogue by her attitude towards the Opposition and towards "common sense".

He described the invitation for talks from PM Kosor as a response to President Josipovic's initiative for talks.

He said that the parliamentary elections should be held before the referendum on the country's admission to the EU so that the referendum would not turn into voting for or against any political option and into the expression of dissatisfaction of citizens with the current authorities.

If we wrap up the accession negotiations in June, the signing of the EU accession treaty can hardly be before November of December and the referendum before the New Year. In the event that the elections are after that, they could be held in late February or early March in 2012, he said explaining the reasons why the SDP is for the elections being held before the referendum.

According to him, this strongest opposition party will not join in peaceful protest marches through Croatian cities.

The Croatian People's Party (HNS), the second strongest opposition party, said in a statement on Tuesday that it would go to the talks with President Josipovic, adding that it had not yet received any official notification about Kosor's talks with parliamentary parties.

The HNS also branded Kosor's invitation for the talks as inappropriate after she failed to come to the parliament.