Is there a way to break down application logs into smaller units in Websphere Application server for CLM apps ?

 We are setting up a CLM 5.0.2 server with WAS 8.5. The application logs like jts.log, ccm.log etc can grow to large sizes depending on errors etc. Also these files keep getting appended with messages. Is there a way to reset the logs based on date or size. Like if the file size grows bigger than 5 mb (example) it should start with a new file with name like ccm_2.log etc. This is implemented in WAS already for stdout errors. We don't want to use stopping of the server to reset / clean / delete the log files.