public synchronized void enableDebugging(boolean enable, DebugLogger logger)
{
 Logger.enabled = enable;

 if (enable == false)
 {
 Logger.logger = null;
 }
 else
 {
 if (logger == null)
 {
 Logger.logger = new DebugLogger()
 {

 public void log(int level, String className, String message)
 {
 long now = System.currentTimeMillis();
 System.err.println(now + " : " + className + ": " + message);
 }
 };
 }
 }
}