diff -r c2a05fa925a1 -r 8fb5b3956b3e xlinkobj.h
--- a/xlinkobj.h	Fri Dec 08 20:18:56 2006 +0000
+++ b/xlinkobj.h	Wed Oct 24 12:21:24 2007 +0000
@@ -5,6 +5,8 @@
 
 enum XLinkState {undefinedXLink,initXLink,activeXLink,deleteXLink};
 
+/*! \brief xlinks are used to draw arbitrary connections between branches (BranchObj) in the map. */
+
 /////////////////////////////////////////////////////////////////////////////
 class XLinkObj:public MapObj {
 public: