An image map can have either of two file formats, client-side (CSIM) or server-side (NCSA, CERN). You can change the format here.
1. Select [CSIM] when you select client-side and select [NCSA] or [CERN] when you select server-side for the "Image Map Editor".
2. With the [Map] field, specify a map name for the client side and a map file name for the server-side.
3. Click the [OK] button.
=> When the map specified in the [Map] field is already being used in the current document, or if the specified file name already exists, a message is displayed. Specify another map name or map file.