For the 1998 Accords i would guess it's the Mobilzier-A0. To be 100% sure it's the best to open the ECUs cover and look inside which Immobilizer System in installed. Refer the pictures of the installation instructions you can find in the download area. (http://www.doctronic.at/download/instal ... 20fx01.pdf
If you still not sure, take a picture and send it to our office by e-mail or post in the forum.