diff --git a/eo/src/utils/eoMonitor.h b/eo/src/utils/eoMonitor.h
index 9ac2d7a6..2789431d 100644
--- a/eo/src/utils/eoMonitor.h
+++ b/eo/src/utils/eoMonitor.h
@@ -21,7 +21,7 @@
     Contact: todos@geneura.ugr.es, http://geneura.ugr.es
              Marc.Schoenauer@polytechnique.fr
              mak@dhi.dk
-CVS Info: $Date: 2003-02-27 19:21:18 $ $Header: /home/nojhan/dev/eodev/eodev_cvs/eo/src/utils/eoMonitor.h,v 1.10 2003-02-27 19:21:18 okoenig Exp $ $Author: okoenig $ 
+CVS Info: $Date: 2004-06-15 07:09:57 $ $Header: /home/nojhan/dev/eodev/eodev_cvs/eo/src/utils/eoMonitor.h,v 1.11 2004-06-15 07:09:57 evomarc Exp $ $Author: evomarc $ 
 
  */
 //-----------------------------------------------------------------------------
@@ -55,6 +55,7 @@ public :
   */
   virtual void add(const eoParam& _param) { vec.push_back(&_param); }
 
+  virtual std::string className(void) const { return "eoMonitor"; }
 
 protected :
     typedef std::vector<const eoParam*>::iterator iterator;
diff --git a/eo/src/utils/eoStat.h b/eo/src/utils/eoStat.h
index cdf0f127..6a69f71d 100644
--- a/eo/src/utils/eoStat.h
+++ b/eo/src/utils/eoStat.h
@@ -46,6 +46,7 @@ class eoStatBase : public eoUF<const eoPop<EOT>&, void>
 {
 public:
   virtual void lastCall(const eoPop<EOT>&) {}
+  virtual std::string className(void) const { return "eoStatBase"; }
 };
 
 /**
@@ -58,6 +59,7 @@ class eoStat : public eoValueParam<T>, public eoStatBase<EOT>
 {
 public :
     eoStat(T _value, std::string _description) : eoValueParam<T>(_value, _description) {}
+  virtual std::string className(void) const { return "eoStat"; }
 };
 
 /**
@@ -68,6 +70,7 @@ class eoSortedStatBase : public eoUF<const std::vector<const EOT*>&, void>
 {
 public:
   virtual void lastCall(const std::vector<const EOT*>&) {}
+  virtual std::string className(void) const { return "eoSortedStatBase"; }
 };
 
 /**
@@ -80,6 +83,7 @@ class eoSortedStat : public eoSortedStatBase<EOT>, public eoValueParam<ParamType
 {
 public :
   eoSortedStat(ParamType _value, std::string _desc) : eoValueParam<ParamType>(_value, _desc) {}
+  virtual std::string className(void) const { return "eoSortedStat"; }
 };
 
 /**
@@ -114,6 +118,8 @@ public :
       doit(_pop, Fitness()); // specializations for scalar and std::vector
     }
 
+  virtual std::string className(void) const { return "eoAverageStat"; }
+
 private :
     
     // Specialization for pareto fitness 
@@ -174,6 +180,8 @@ public :
         value().first = result.first / n; // average
         value().second = sqrt( (result.second - n * value().first * value().first) / (n - 1.0)); // stdev
     }
+
+  virtual std::string className(void) const { return "eoSecondMomentStats"; }
 };
 
 /**
@@ -201,6 +209,7 @@ public :
         doit(_pop, Fitness());
     }
 
+  virtual std::string className(void) const { return "eoNthElementFitnessStat"; }
 private :
     
     struct CmpFitness
@@ -299,6 +308,7 @@ public :
       doit(_pop, Fitness() ); // specializations for scalar and std::vector
     }
 
+  virtual std::string className(void) const { return "eoBestFitnessStat"; }
 private :
 
     struct CmpFitness
@@ -377,6 +387,8 @@ public :
         double sz = _pop.size();
         v /= sz * sz * _pop[0].size();
     }
+  virtual std::string className(void) const { return "eoDistanceStat"; }
+
 };
 
 
diff --git a/eo/src/utils/eoStdoutMonitor.h b/eo/src/utils/eoStdoutMonitor.h
index 2cab5e81..43335a57 100644
--- a/eo/src/utils/eoStdoutMonitor.h
+++ b/eo/src/utils/eoStdoutMonitor.h
@@ -42,6 +42,7 @@ public :
       verbose(_verbose), delim(_delim), firsttime(true) {}
     eoMonitor& operator()(void);
 
+  virtual std::string className(void) const { return "eoStdoutMonitor"; }
 private :
   bool verbose;
   std::string delim;
diff --git a/eo/src/utils/eoUpdater.h b/eo/src/utils/eoUpdater.h
index c708fd5d..490d0831 100644
--- a/eo/src/utils/eoUpdater.h
+++ b/eo/src/utils/eoUpdater.h
@@ -40,6 +40,7 @@ class eoUpdater : public eoF<void>
 {
 public:
   virtual void lastCall() {}
+  virtual std::string className(void) const { return "eoUpdater"; }
 };
 
 /**
@@ -57,6 +58,7 @@ class eoIncrementor : public eoUpdater
         counter += stepsize;
     }
 
+  virtual std::string className(void) const { return "eoIncrementor"; }
 private:
     T& counter;
     T stepsize;
@@ -85,6 +87,8 @@ public :
     value() += stepsize;
   }
   
+  virtual std::string className(void) const { return "eoIncrementorParam"; }
+
 private:
   T stepsize;
 };
@@ -103,6 +107,7 @@ public :
 
     void operator()(void);
 
+  virtual std::string className(void) const { return "eoTimedStateSaver"; }
 private :
     const eoState& state;
 
@@ -132,6 +137,7 @@ public :
     virtual void lastCall(void);
     void operator()(void);
 
+  virtual std::string className(void) const { return "eoCountedStateSaver"; }
 private :
     void doItNow(void);