It's there. Check out level 2 and 3 of the SAI base spec. Those include the requirement that the interfaces are implemented. Xj3D currently level 1 conformant.I meant the spec should do this, not your browser
-- Alan Hudson
President Yumetech, Inc. www.yumetech.com President Web3D Consortium www.web3d.org 206 340 8900 ------------------------------------------------------------------------- for list subscription/unsubscription, go to http://www.web3d.org/cgi-bin/public_list_signup/lwgate/listsavail.html