Dr. Fredrick Toben of the revisionist Adelaide Institute said Friday he would defy orders to purge offensive Holocaust denial material from his Web site. Three days earlier he had apologized "unreservedly" for defying a federal court order.

In 2002, Toben was ordered to remove material doubting the existence of gas chambers and extent of the Holocaust following a case brought against him by the Executive Council of Australian Jewry.

After apologizing Tuesday in an Adelaide court and pledging to remove all the offensive material by the following week to avoid a possible jail term, Toben published a response on his Web site saying he would not remove the banned content.

Toben also told reporters his institute would continue to debate the "many contentious issues of this so-called Holocaust."

The executive council said it could resume the case if Toben refused to follow the court's order and continued to breach the Racial Discrimination Act.