[wwwdocs] Reduce use of MetaHTML for navigation

Index: gcc.css
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc.css,v
retrieving revision 1.40
diff -u -r1.40 gcc.css
--- gcc.css	10 Apr 2016 08:42:40 -0000	1.40
+++ gcc.css	16 Apr 2016 21:55:31 -0000
@@ -32,7 +32,7 @@ 
 td.status .regress { font-size: 80%; }
 td.status dd { margin-left:3ex; }
 
-.td_title {
+table.navitem tr:nth-child(1) {
   border-color: #3366cc;
   border-style: solid;
   border-width: thin;
@@ -40,8 +40,7 @@ 
   background-color: #0066dd;
   font-weight: bold;
 }
-
-.td_con {
+table.navitem tr:nth-child(2) {
   padding-top: 3px;
   padding-left: 8px;
   padding-bottom: 3px;
Index: style.mhtml
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/style.mhtml,v
retrieving revision 1.127
diff -u -r1.127 style.mhtml
--- style.mhtml	14 Feb 2016 14:22:18 -0000	1.127
+++ style.mhtml	16 Apr 2016 21:55:31 -0000
@@ -116,11 +116,11 @@ 
 
   <if <match <get-var env::PREPROCESS_FILE> "java/[^/]*.html">
    <group
-    <tr><td><table cellspacing="0" width="100%">
-    <tr <nav-title-style> ><td align="center" valign="middle">
+    <tr><td><table class="navitem" cellspacing="0" width="100%">
+    <tr><td align="center" valign="middle">
     <img src="gcj.jpg" alt="GCJ" width="136" height="98" />
     </td></tr>
-    <tr><td <nav-body-style> >
+    <tr><td>
     <p>
     <a href="index.html">GCJ Home</a><br />
     <a href="../">GCC Home</a><br />
@@ -137,9 +137,9 @@ 
 
   <if <match <get-var env::PREPROCESS_FILE> "libstdc../[^/]*.html">
    <group
-    <tr><td><table cellspacing="0" width="100%">
-    <tr><td <nav-title-style> >libstdc++ v3</td></tr>
-    <tr><td <nav-body-style> >
+    <tr><td><table class="navitem" cellspacing="0" width="100%">
+    <tr><td>libstdc++ v3</td></tr>
+    <tr><td>
     <a href="./">libstdc++ Home</a><br />
     <a href="../">GCC Home</a><br />
     <a href="https://gcc.gnu.org/onlinedocs/libstdc++/faq.html">FAQ</a><br />
@@ -149,9 +149,9 @@ 
    >
   >
 
-  <tr><td><table cellspacing="0" width="100%">
-  <tr><td <nav-title-style> >About GCC</td></tr>
-  <tr><td <nav-body-style> >
+  <tr><td><table class="navitem" cellspacing="0" width="100%">
+  <tr><td>About GCC</td></tr>
+  <tr><td>
   <a href="<get-var BACKPATH>gccmission.html">Mission Statement</a><br />
   <a href="<get-var BACKPATH>releases.html">Releases</a><br />
   <a href="<get-var BACKPATH>snapshots.html">Snapshots</a><br />
@@ -171,9 +171,9 @@ 
   </td></tr>
   </table></td></tr>
 
-  <tr><td><table cellspacing="0" width="100%">
-  <tr><td <nav-title-style> >Documentation</td></tr>
-  <tr><td <nav-body-style> >
+  <tr><td><table class="navitem" cellspacing="0" width="100%">
+  <tr><td>Documentation</td></tr>
+  <tr><td>
   <a href="https://gcc.gnu.org/install/">Installation</a><br />
   &middot;&nbsp;<a href="https://gcc.gnu.org/install/specific.html">Platforms</a><br />
   <a href="<get-var BACKPATH>onlinedocs/">Manual</a><br />
@@ -183,17 +183,17 @@ 
   </td></tr>
   </table></td></tr>
  
-  <tr><td><table cellspacing="0" width="100%">
-  <tr><td <nav-title-style> >Download</td></tr>
-  <tr><td <nav-body-style> >
+  <tr><td><table class="navitem" cellspacing="0" width="100%">
+  <tr><td>Download</td></tr>
+  <tr><td>
   <a href="<get-var BACKPATH>mirrors.html">Mirrors</a><br />
   <a href="https://gcc.gnu.org/install/binaries.html">Binaries</a>
   </td></tr>
   </table></td></tr>
 
-  <tr><td><table cellspacing="0" width="100%">
-  <tr><td <nav-title-style> >Sources</td></tr>
-  <tr><td <nav-body-style> >
+  <tr><td><table class="navitem" cellspacing="0" width="100%">
+  <tr><td>Sources</td></tr>
+  <tr><td>
   <a href="<get-var BACKPATH>svn.html">SVN read access</a><br />
   <a href="<get-var BACKPATH>svnwrite.html">SVN write access</a><br />
   <a href="https://gcc.gnu.org/wiki/GitMirror">Git read access</a><br />
@@ -201,9 +201,9 @@ 
   </td></tr>
   </table></td></tr>
 
-  <tr><td><table cellspacing="0" width="100%">
-  <tr><td <nav-title-style> >Development</td></tr>
-  <tr><td <nav-body-style> >
+  <tr><td><table class="navitem" cellspacing="0" width="100%">
+  <tr><td>Development</td></tr>
+  <tr><td>
   <a href="<get-var BACKPATH>develop.html">Development Plan</a><br />
   &middot;&nbsp;<a href="<get-var BACKPATH>develop.html#timeline">Timeline</a><br />
   <a href="<get-var BACKPATH>contribute.html">Contributing</a><br />
@@ -218,9 +218,9 @@ 
   </td></tr>
   </table></td></tr>
 
-  <tr><td><table cellspacing="0" width="100%">
-  <tr><td <nav-title-style> >Bugs</td></tr>
-  <tr><td <nav-body-style> >
+  <tr><td><table class="navitem" cellspacing="0" width="100%">
+  <tr><td>Bugs</td></tr>
+  <tr><td>
   <a href="<get-var BACKPATH>bugs/#known">Known bugs</a><br />
   <a href="<get-var BACKPATH>bugs/">How to report</a><br />
   <a href="https://gcc.gnu.org/bugzilla/">Bug&nbsp;tracker</a><br />