KUALA LUMPUR, Malaysia, (CWNews.com) - A Malaysian woman has filed suit against the government, demanding they allow her to switch the religious affiliation her identity card from Muslim to Christian.The government has said she needs permission from an Islamic court first, but the woman, who is unidentified for security reasons, contends that the country's constitution guarantees freedom of religion. Government lawyers say that the freedom is not absolute and should be subject to other sections of the constitution-- like one allowing religious groups to manage their own affairs. Malaysia is officially Muslim, but other religious groups are generally tolerated.Two state governments last year proposed sending Muslims who wanted to leave Islam for mandatory terms at a rehabilitation center to reconsider their apostasy. The central government of Prime Minister Mahathir Mohamad -- himself a moderate Muslim -- blocked the proposal but then started drafting its own apostasy law. That plan was shelved after quiet protests from various groups, including a petition from 29 Muslim businessmen.