Tsang Yok-sing has pledged to resign from the Executive Council if elected as Legislative Council president next month, but he says he will not quit the political party he founded. Mr Tsang - who in 1992 founded the Democratic Alliance for Betterment of Hong Kong, a predecessor of the Democratic Alliance for the Betterment and Progress of Hong Kong - said in an interview with RTHK yesterday that he did not see the need for a Legco president to cut party ties because a president's impartiality hinged on actual performance. He said he would resign from Exco and other government-appointed posts if he became Legco president. He is clear favourite. 'The duty of the legislature is to monitor the executive authorities,' he said. 'It is inappropriate for the Legco president to take up most of the appointed posts offered by the government.' But Mr Tsang has not yet decided whether to follow incumbent Rita Fan Hsu Lai-tai's practice of refraining from voting. Mrs Fan held to a pledge she made in 1998 to waive her voting rights in Legco to maintain the president's neutrality. According to the convention of the British Parliament, the Speaker of the House of Commons remains non-partisan and renounces all party affiliation. The Speaker does not take part in debate nor vote, except to resolve ties, and even then, subject to conventions that maintain his or her non-partisan status. In 1996, then Legco president Andrew Wong Wang-fat voted 'no' after a ballot on Emily Lau Wai-hing's motion urging Beijing to allow the first chief executive and legislature of the special administrative region to be elected by one person, one vote was tied. Mr Wong's casting vote in favour of the status quo was not challenged. Liberal Party legislator Jeffrey Lam Kin-fung said the successor to Mrs Fan should follow the convention that the Legco president did not vote except to break a tie. Li Pang-kwong, a political analyst from Lingnan University, said it was not a big problem for a Legco chief to retain his party membership, but he should be an inactive party member. 'He should also stick to the convention of only casting a vote when the votes are tied,' Dr Li said. Ma Ngok, a political scientist from Chinese University, said Mr Tsang's neutrality would be called into question if he insisted on voting in Legco. DAB chairman Tam Yiu-chung said lawmakers it had approached had not opposed Mr Tsang retaining his party membership if elected. 'Mr Tsang was only rasing a question for public discussion ... and has not made up his mind on the issue,' Mr Tam said. Lawmakers are scheduled to elect the president on October 8.