         @resizeHandler = _resizeHandler
 
 
-
+        ###*
+         * Initialize the buffer.
+         * The buffer lists all the created thumbs, keep a reference on the
+         * first (top most) and the last (bottom most) thumb.
+         * The buffer is a closed double linked chain.
+         * Each element of the chain is a "thumb" with a previous (prev) and
+         * next (next) element.
+         * "closed" means that buffer.last.prev == buffer.first
+         * data structure : see the beginning of this file.
+        ###
         _initBuffer = ()=>
 
             thumb$ = document.createElement('img')

#   . in a variable name, Pt means "Pointer". The safe zone is define by a
#     start pointer and an end pointer, themselves defined
#     by a rank, y monthRk and inMonthRk
#
# 2/ @months
#   [ {nPhotos:45, month:"201503"}, ... ]

#       longList.resizeHandler()
#
# -- SEMANTIC / CONVENTIONS --
#
#
# 1/ syntax
#   . a variable name ending with a '$' is a reference to a node in the DOM
