--- trunk/mdtools/md_code/simulation_module.F90	2003/01/24 21:36:52	246
+++ trunk/mdtools/md_code/simulation_module.F90	2003/01/27 18:28:11	247
@@ -41,9 +41,11 @@ module simulation
 !! WARNING: use_pbc hardcoded, fixme
   logical :: use_pbc = .true.
   logical :: setSim = .false.
-  
+
+!! array for saving previous positions for neighbor lists.  
   real( kind = dp ), allocatable,dimension(:,:),save :: q0
 
+
   public :: check
   public :: save_nlist
   public :: wrap