diff -rc v6.2/Makefile v6.3/Makefile
*** v6.2/Makefile	Wed Nov 19 21:12:25 2008
--- v6.3/Makefile	Mon Dec  1 14:20:31 2008
***************
*** 1,7 ****
  all:	Pub/.copied
  
! VERNUM=6.2
! PREVNUM=6.1
  VER=v${VERNUM}
  PREV=v${PREVNUM}
  
--- 1,7 ----
  all:	Pub/.copied
  
! VERNUM=6.3
! PREVNUM=6.2
  VER=v${VERNUM}
  PREV=v${PREVNUM}
  
***************
*** 28,34 ****
  
  index.html:	${SOURCES} ${DIFFS}
  	rm -f index.html
- 	touch datefile
  	php makeindex.php.txt ${VERNUM} >index.html
  	chmod a-w index.html
  
--- 28,33 ----
diff -rc v6.2/makeindex.php.txt v6.3/makeindex.php.txt
*** v6.2/makeindex.php.txt	Wed Nov 19 21:12:25 2008
--- v6.3/makeindex.php.txt	Mon Dec  1 14:20:31 2008
***************
*** 152,158 ****
  This method is neither particularly beautiful nor ugly, but works
  the same way
  for any number of dimensions.  (I found it while trying to understand
! <a href="#affer">[Jaffer]</a> below-- the only one of the references I read).  I suspect it's
  the same solution everyone finds.)
  
  <h3>Travels are Specified by Start and End Corners</h3>
--- 152,158 ----
  This method is neither particularly beautiful nor ugly, but works
  the same way
  for any number of dimensions.  (I found it while trying to understand
! <a href="#Jaffer">[Jaffer]</a> below-- the only one of the references I read).  I suspect it's
  the same solution everyone finds.)
  
  <h3>Travels are Specified by Start and End Corners</h3>
***************
*** 360,366 ****
      return 0,  2**( ( -nChunks - 1 ) % nD )  # in Python 0 <=  a % b  < b.
  </font></pre>
  
! <h3>The Code, Tests &amp; Demos</h3>
  
  <?php
  $cmt = array(
--- 360,366 ----
      return 0,  2**( ( -nChunks - 1 ) % nD )  # in Python 0 <=  a % b  < b.
  </font></pre>
  
! <h3>The Code, Tests, Demos &amp; History</h3>
  
  <?php
  $cmt = array(
***************
*** 369,382 ****
  "hilbert_test.py" => "Tests hilbert.py functions for 1 to 3 dimensions.",
  "makeindex.php.txt" => "PHP source for this page (inserts this listing).",
  "hilbert_pic.pdf" => "Exploded views of 3D Hilbert walks.",
! "hilbert_pic.py" => "Python/pdfgen code that generates hilbert_pic.pdf"
  );
  
  $subst_url = array(
  );
  
  echo "<table>\n";
! exec( "/bin/ls -ld hilbert.py hilbert_test.py makeindex.php.txt *diff.txt hilbert_pic.py hilbert_pic.pdf Makefile", $lines );
  foreach( $lines as $line ) {
     echo "<tr>\n";
     $parts=explode( " ", $line );
--- 369,383 ----
  "hilbert_test.py" => "Tests hilbert.py functions for 1 to 3 dimensions.",
  "makeindex.php.txt" => "PHP source for this page (inserts this listing).",
  "hilbert_pic.pdf" => "Exploded views of 3D Hilbert walks.",
! "hilbert_pic.py" => "Python/pdfgen code that generates hilbert_pic.pdf",
! "old" => "differences between previous versions"
  );
  
  $subst_url = array(
  );
  
  echo "<table>\n";
! exec( "/bin/ls -ld old hilbert.py hilbert_test.py makeindex.php.txt hilbert_pic.py hilbert_pic.pdf Makefile", $lines );
  foreach( $lines as $line ) {
     echo "<tr>\n";
     $parts=explode( " ", $line );