BELGRADE, Nov. 6 (Xinhua) -- Visiting Polish President Lech Kaczynski pledged here Thursday to sign the ratification of the Lisbon Treaty into law, reports reaching here from the Slovenian capital Ljubljana said.

    "Poland will not be an obstacle in the ratification," Kaczynski, who is on an official visit to Slovenia, said following a meeting with his Slovenian counterpart Danilo Tuerk, the Slovenian official news agency STA reported.

    Kaczynski said he was happy with the treaty, as he had succeeded in negotiations in Brussels and Lisbon last year to assert most of his demands.

    He also rejected the notion that he previously opposed the treaty because of equal rights for homosexuals envisaged in the Charter of Fundamental Rights.

    The charter will become legally binding when the Lisbon Treaty enters into force, but Britain and Poland have secured an opt-out.

    Family is "a union between one man and one woman", Kaczynski said, adding that he would never change his opinion.

    President Tuerk said same-sex unions were a fundamental ethical question raised in every society, but the answers to it are different.

    "These are issues that do not belong in the framework of EU regulation; they are the domain of individual countries and different approaches need to be respected," he said.

    The Lisbon Treaty, signed by EU heads of state and government last December, is expected to replace a failed EU constitution designed to streamline the policies of the 27-nation bloc and improve its efficiency in dealing with future challenges.

    The treaty has to be ratified by all 27 member states to take effect.