diff -r c1fc2c14a3ae -r 5dc13b93f8b4 lemon/bits/graph_extender.h
--- a/lemon/bits/graph_extender.h	Thu Mar 02 14:22:03 2006 +0000
+++ b/lemon/bits/graph_extender.h	Fri Mar 03 12:35:32 2006 +0000
@@ -16,16 +16,22 @@
  *
  */
 
-#ifndef LEMON_GRAPH_EXTENDER_H
-#define LEMON_GRAPH_EXTENDER_H
+#ifndef LEMON_BITS_GRAPH_EXTENDER_H
+#define LEMON_BITS_GRAPH_EXTENDER_H
 
 #include <lemon/bits/invalid.h>
 #include <lemon/error.h>
 
 #include <lemon/bits/default_map.h>
 
+///\ingroup graphbits
+///\file
+///\brief Extenders for the graph types
 namespace lemon {
 
+  /// \ingroup graphbits
+  ///
+  /// \brief Extender for the Graphs
   template <typename Base>
   class GraphExtender : public Base {
   public:
@@ -320,6 +326,9 @@
     }
   };
 
+  /// \ingroup graphbits
+  ///
+  /// \brief BaseExtender for the UGraphs
   template <typename Base>
   class UGraphBaseExtender : public Base {
 
@@ -560,6 +569,9 @@
   };
 
 
+  /// \ingroup graphbits
+  ///
+  /// \brief Extender for the UGraphs
   template <typename Base> 
   class UGraphExtender : public Base {
   public:
@@ -978,6 +990,9 @@
   };
 
 
+  /// \ingroup graphbits
+  ///
+  /// \brief BaseExtender for the BpUGraphs
   template <typename Base>
   class BpUGraphBaseExtender : public Base {
   public:
@@ -1167,6 +1182,9 @@
     }
   };
 
+  /// \ingroup graphbits
+  ///
+  /// \brief Extender for the BpUGraphs
   template <typename Base>
   class BpUGraphExtender : public Base {
   public:
@@ -1796,4 +1814,4 @@
 
 }
 
-#endif // LEMON_UNDIR_GRAPH_EXTENDER_H
+#endif