REUTERS/Tyrone SiuTaipei (AFP) - Taiwan's top court ruled in favour of gay marriage Wednesday, a landmark decision that paves the way for the island to become the first place in Asia to legalise same-sex unions. Crowds of supporters cheered, hugged and wept as the court said that current laws preventing the practice "violated" the constitution's guarantees of freedom of marriage and equality. It gave the government two years to implement the ruling. Momentum has been growing behind the push for equal marriage rights, with Taiwan's president Tsai Ing-wen openly supporting the campaign. But there has also been anger among conservative groups, who have staged mass rallies against any change in the law. The constitutional court said that if parliament does not make the change within two years, same-sex couples could register to marry regardless, based on its interpretation.