* 3 : parameters = map of cgi parameters
*
* CGI Parameters :
- * type : Selects the type of banner between "trans", "logo",
- * and "auto". Defaults to "logo" if absent or invalid.
+ * type : Selects the type of banner between "trans", "pattern",
+ * and "auto". Defaults to "pattern" if absent or invalid.
* "auto" means to select as if we were image-blocking.
* (Only the first character really counts; b and t are
* equivalent).