diff --git a/docs/yahtmle b/docs/yahtmle
index 2ef49f6..1577ffe 100644
--- a/docs/yahtmle
+++ b/docs/yahtmle
@@ -507,29 +507,30 @@
 
 
 
+
 
 Tag table:
-Node: Top259
-Node: Intro836
-Node: Installation1234
-Node: Setting up yahtml1515
-Node: Setting environments for weblint browsers and image viewers2306
-Node: Setting environment variables for WWW pages3002
-Node: Command Invocation3973
-Node: Completion4401
-Node: Jump5917
-Node: Changing and Deleting6397
-Node: Changing tags in pairs6681
-Node: Changing entities7176
-Node: URLencoding of strings within region7712
-Node: td-enclosure/tr-enclosure8013
-Node: CSS Support8979
-Node: CSS-class completion9205
-Node: Reread CSS definition10058
-Node: Customizations10333
-Node: All customizable variables10609
-Node: Hook variables14377
-Node: Copying14503
-Node: Concept Index15294
+Node: Top256
+Node: Intro833
+Node: Installation1231
+Node: Setting up yahtml1512
+Node: Setting environments for weblint browsers and image viewers2303
+Node: Setting environment variables for WWW pages2999
+Node: Command Invocation3970
+Node: Completion4398
+Node: Jump5914
+Node: Changing and Deleting6394
+Node: Changing tags in pairs6678
+Node: Changing entities7173
+Node: URLencoding of strings within region7709
+Node: td-enclosure/tr-enclosure8010
+Node: CSS Support8976
+Node: CSS-class completion9202
+Node: Reread CSS definition10055
+Node: Customizations10330
+Node: All customizable variables10606
+Node: Hook variables14374
+Node: Copying14500
+Node: Concept Index15291
 
 End tag table
diff --git a/docs/yahtmlj b/docs/yahtmlj
index f5f5ddd..e58c5f3 100644
--- a/docs/yahtmlj
+++ b/docs/yahtmlj
@@ -322,17 +322,17 @@
 �͊m��̂Ƃ��Ƀ��^�[���L�[(�܂���C-m)�ł͂Ȃ��AC-j��������class�⊮���͂�
 �L�����Z���ł��܂��B���Ƃ���
 
-      [prefix] l                    �s���^�O�⊮���N��
-         (�܂���[prefix] l SPC)
+      `[prefix] l'                    �s���^�O�⊮���N��
+         (�܂���`[prefix] l SPC')
       tt                                  <tt></tt>�����ꂽ���̂�tt�Ɠ���
-      C-m
+      `C-m'
 
 �Ƃ����ꍇ�͑����� class= �ƕ⊮�v�����v�g���o�܂����A
 
-      [prefix] l                    �s���^�O�⊮���N��
-         (�܂���[prefix] l SPC)
+      `[prefix] l'                    �s���^�O�⊮���N��
+         (�܂���`[prefix] l SPC')
       tt                                  <tt></tt>�����ꂽ���̂�tt�Ɠ���
-      C-j
+      `C-j'
 
 �ƍŌ�� `C-j' �œ��͂����ꍇ�� class �⊮�v�����v�g�͏o�܂���B
 
@@ -511,35 +511,36 @@
 * �J�X�^�}�C�Y[�������܂���]:   Customizations.         4.
 * �L�[�A�T�C��[������������]:   Customizations.         4.
 * Demacs:                       Intro.                  4.
-* HTML��[HTML��]:               Intro.                  4.
+* HTML�[HTML��]:               Intro.                  4.
 * LaTeX:                        Intro.                  4.
 * Mule:                         Intro.                  4.
 
 
 
+
 
 Tag table:
-Node: Top260
-Node: Intro729
-Node: Installation1008
-Node: yahtml�N���̂��߂̐ݒ�1196
-Node: lint�v���O����/�u���E�U/�C���[�W�����[�A�‹����̐ݒ�1850
-Node: WWW�y�[�W�‹��p�ϐ��̐ݒ�2350
-Node: Command Invocation3121
-Node: Completion3448
-Node: Jump4432
-Node: Changing and Deleting4831
-Node: �΃^�O�̕ύX5005
-Node: �����Q�Ƃւ̕ύX5355
-Node: ���W������������URLencode5738
-Node: td����/tr����5972
-Node: CSS Support6601
-Node: CSS-class completion6799
-Node: Reread CSS file7783
-Node: Customizations8005
-Node: All customizable variables8229
-Node: Hook variables11227
-Node: Copying11339
-Node: Concept Index11842
+Node: Top257
+Node: Intro726
+Node: Installation1005
+Node: yahtml�N���̂��߂̐ݒ�1193
+Node: lint�v���O����/�u���E�U/�C���[�W�����[�A�‹����̐ݒ�1847
+Node: WWW�y�[�W�‹��p�ϐ��̐ݒ�2347
+Node: Command Invocation3118
+Node: Completion3445
+Node: Jump4429
+Node: Changing and Deleting4828
+Node: �΃^�O�̕ύX5002
+Node: �����Q�Ƃւ̕ύX5352
+Node: ���W������������URLencode5735
+Node: td����/tr����5969
+Node: CSS Support6598
+Node: CSS-class completion6796
+Node: Reread CSS file7792
+Node: Customizations8014
+Node: All customizable variables8238
+Node: Hook variables11236
+Node: Copying11348
+Node: Concept Index11851
 
 End tag table
diff --git a/docs/yatexj b/docs/yatexj
index 68808ec..ed1b627 100644
--- a/docs/yatexj
+++ b/docs/yatexj
Binary files differ
diff --git a/newpage.rb b/newpage.rb
index 6d9db1e..23baa0c 100755
--- a/newpage.rb
+++ b/newpage.rb
@@ -3,7 +3,7 @@
 # Create new HTML file referring other HTML file in the same directory.
 # (C)2010 by HIROSE Yuuji [yuuji@yatex.org]
 # Last modified Mon Sep  6 16:16:33 2010 on firestorm
-# $Id$
+# $Id: newpage.rb,v 33c8875f52f9 2012-01-12 12:26 +0900 yuuji $
 # http://www.yatex.org
 # Example:
 #	newpage.rb		Create new index.html by copying template.
diff --git a/yahtml.el b/yahtml.el
index d2facb5..0fa7097 100644
--- a/yahtml.el
+++ b/yahtml.el
@@ -1,7 +1,7 @@
 ;;; yahtml.el --- Yet Another HTML mode -*- coding: sjis -*-
 ;;; (c) 1994-2013 by HIROSE Yuuji [yuuji(@)yatex.org]
 ;;; Last modified Mon Dec 22 22:17:24 2014 on firestorm
-;;; $Id$
+;;; $Id: yahtml.el,v 1.78 2014/12/25 15:11:02 yuuji Rel $
 
 (defconst yahtml-revision-number "1.77"
   "Revision number of running yahtml.el")
diff --git a/yatex.el b/yatex.el
index 3849def..3aae474 100644
--- a/yatex.el
+++ b/yatex.el
@@ -1,7 +1,7 @@
 ;;; yatex.el --- Yet Another tex-mode for emacs //�쒹// -*- coding: sjis -*-
 ;;; (c)1991-2014 by HIROSE Yuuji.[yuuji@yatex.org]
 ;;; Last modified Fri Dec 26 00:04:43 2014 on firestorm
-;;; $Id$
+;;; $Id: yatex.el,v 1.78 2014/12/25 15:11:02 yuuji Rel $
 ;;; The latest version of this software is always available at;
 ;;; http://www.yatex.org/
 
diff --git a/yatex19.el b/yatex19.el
index d415107..5e5ff56 100644
--- a/yatex19.el
+++ b/yatex19.el
@@ -1,7 +1,7 @@
 ;;; yatex19.el -- YaTeX facilities for Emacs 19 or later
 ;;; (c)1994-2013 by HIROSE Yuuji.[yuuji@yatex.org]
 ;;; Last modified Sun Dec 21 14:03:48 2014 on firestorm
-;;; $Id$
+;;; $Id: yatex19.el,v 1.78 2014/12/25 15:11:02 yuuji Rel $
 
 ;;; Code:
 ;(require 'yatex)
diff --git a/yatex23.el b/yatex23.el
index e2526ea..f8ac11b 100644
--- a/yatex23.el
+++ b/yatex23.el
@@ -1,7 +1,7 @@
 ;;; yatex23.el --- YaTeX facilities for Emacs 23 or later -*- coding: sjis -*-
 ;;; (c)2014 by HIROSE Yuuji.[yuuji@yatex.org]
 ;;; Last modified Tue Dec 23 12:44:35 2014 on firestorm
-;;; $Id$
+;;; $Id: yatex23.el,v 1.78 2014/12/25 15:11:02 yuuji Rel $
 
 ;;; Code:
 (defvar YaTeX-dnd-auto-figure "figure"
diff --git a/yatexadd.el b/yatexadd.el
index 10ca059..1538eca 100644
--- a/yatexadd.el
+++ b/yatexadd.el
@@ -2,7 +2,7 @@
 ;;; yatexadd.el rev.21
 ;;; (c)1991-2014 by HIROSE Yuuji.[yuuji@yatex.org]
 ;;; Last modified Sat Dec 20 14:55:10 2014 on firestorm
-;;; $Id$
+;;; $Id: yatexadd.el,v 1.78 2014/12/25 15:25:17 yuuji Exp $
 
 ;;; Code:
 ;;;
diff --git a/yatexenv.el b/yatexenv.el
index 044deed..59eb4e8 100644
--- a/yatexenv.el
+++ b/yatexenv.el
@@ -1,7 +1,7 @@
 ;;; yatexenv.el --- YaTeX environment-specific functions
 ;;; (c) 1994-2013 by HIROSE Yuuji.[yuuji@yatex.org]
 ;;; Last modified Mon Dec 22 12:49:03 2014 on firestorm
-;;; $Id$
+;;; $Id: yatexenv.el,v 1.78 2014/12/25 15:11:02 yuuji Rel $
 
 ;;; Code:
 ;;;
diff --git a/yatexgen.el b/yatexgen.el
index ee59e90..9ad851d 100644
--- a/yatexgen.el
+++ b/yatexgen.el
@@ -2,7 +2,7 @@
 
 ;;; (c)1991-1995,1999,2000 by HIROSE Yuuji.[yuuji@yatex.org]
 ;;; Last modified Sun Dec 21 14:04:49 2014 on firestorm
-;;; $Id$
+;;; $Id: yatexgen.el,v 1.78 2014/12/25 15:11:02 yuuji Rel $
 
 ;;; Code:
 (require 'yatex)
diff --git a/yatexhie.el b/yatexhie.el
index 842394a..b88dacf 100644
--- a/yatexhie.el
+++ b/yatexhie.el
@@ -2,7 +2,7 @@
 ;;; 
 ;;; (c)1995-2013 by HIROSE Yuuji [yuuji@yatex.org]
 ;;; Last modified Sun Dec 21 14:05:20 2014 on firestorm
-;;; $Id$
+;;; $Id: yatexhie.el,v 1.78 2014/12/25 15:11:02 yuuji Rel $
 
 ;;; Code:
 ;; ----- Customizable variables -----
diff --git a/yatexhlp.el b/yatexhlp.el
index 13309ca..279b25d 100644
--- a/yatexhlp.el
+++ b/yatexhlp.el
@@ -2,7 +2,7 @@
 ;;; 
 ;;; (c)1994,1998,2004,2014 by HIROSE Yuuji.[yuuji@yatex.org]
 ;;; Last modified Sun Dec 21 22:55:07 2014 on firestorm
-;;; $Id$
+;;; $Id: yatexhlp.el,v 1.78 2014/12/25 15:11:02 yuuji Rel $
 
 ;;; Code:
 (let ((help-file (concat "YATEXHLP."
diff --git a/yatexlib.el b/yatexlib.el
index 961f72a..78dc48a 100644
--- a/yatexlib.el
+++ b/yatexlib.el
@@ -2,7 +2,7 @@
 ;;; 
 ;;; (c)1994-2013 by HIROSE Yuuji.[yuuji@yatex.org]
 ;;; Last modified Sun Dec 21 23:55:30 2014 on firestorm
-;;; $Id$
+;;; $Id: yatexlib.el,v 1.78 2014/12/25 15:11:02 yuuji Rel $
 
 ;;; Code:
 ;; General variables
diff --git a/yatexmth.el b/yatexmth.el
index 33ec2af..d82fcd0 100644
--- a/yatexmth.el
+++ b/yatexmth.el
@@ -2,7 +2,7 @@
 ;;; 
 ;;; (c)1993-2013 by HIROSE Yuuji [yuuji@yatex.org]
 ;;; Last modified Fri Jul  5 23:28:28 2013 on firestorm
-;;; $Id$
+;;; $Id: yatexmth.el,v 1.78 2014/12/25 15:11:02 yuuji Rel $
 
 ;;; Commentary:
 ;;; [Customization guide]
diff --git a/yatexpkg.el b/yatexpkg.el
index 7520b55..6ae8a9e 100644
--- a/yatexpkg.el
+++ b/yatexpkg.el
@@ -2,7 +2,7 @@
 ;;; 
 ;;; (c)2003-2014 by HIROSE, Yuuji [yuuji@yatex.org]
 ;;; Last modified Mon Dec 22 11:12:19 2014 on firestorm
-;;; $Id$
+;;; $Id: yatexpkg.el,v 1.78 2014/12/25 15:11:02 yuuji Rel $
 
 ;;; Code:
 (defvar YaTeX-package-ams-envs
diff --git a/yatexprc.el b/yatexprc.el
index 9002f56..33289ae 100644
--- a/yatexprc.el
+++ b/yatexprc.el
@@ -1,8 +1,8 @@
 ;;; yatexprc.el --- YaTeX process handler
 ;;; 
 ;;; (c)1993-2013 by HIROSE Yuuji.[yuuji@yatex.org]
-;;; Last modified Thu Dec 25 22:12:33 2014 on firestorm
-;;; $Id$
+;;; Last modified Fri Dec 26 00:50:41 2014 on firestorm
+;;; $Id: yatexprc.el,v 4b34515f7bbb 2014-12-26 00:59 +0900 yuuji $
 
 ;;; Code:
 ;(require 'yatex)
@@ -462,7 +462,7 @@
 		       (get 'YaTeX-typeset-process 'ppcmd))))
 	;; After all chain executed, display image in current window
 	(cond
-	 ((and nil (featurep 'image) window-system)
+	 ((and (featurep 'image) window-system)
 	  ;; If direct image displaying available in running Emacs,
 	  ;; display target image into the next window in Emacs.
 	  (select-window w)
diff --git a/yatexsec.el b/yatexsec.el
index 9b3d796..2b5a485 100644
--- a/yatexsec.el
+++ b/yatexsec.el
@@ -2,7 +2,7 @@
 ;;; 
 ;;; (c) 1994-2013 by HIROSE Yuuji [yuuji@yatex.org]
 ;;; Last modified Sun Dec 21 14:16:35 2014 on firestorm
-;;; $Id$
+;;; $Id: yatexsec.el,v 1.78 2014/12/25 15:11:02 yuuji Rel $
 
 ;;; Code:
 (defvar YaTeX-sectioning-level