Index: includes/theme.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/theme.inc,v
retrieving revision 1.470
diff -u -p -r1.470 theme.inc
--- includes/theme.inc	22 Feb 2009 17:55:29 -0000	1.470
+++ includes/theme.inc	3 Apr 2009 14:28:45 -0000
@@ -1901,37 +1901,16 @@ function template_preprocess_page(&$vari
   $body_classes[] = $variables['is_front'] ? 'front' : 'not-front';
   // Add a class that tells us whether the page is viewed by an authenticated user or not.
   $body_classes[] = $variables['logged_in'] ? 'logged-in' : 'not-logged-in';
-  // Add arg(0) to make it possible to theme the page depending on the current page
-  // type (e.g. node, admin, user, etc.). To avoid illegal characters in the class,
-  // we're removing everything disallowed. We are not using 'a-z' as that might leave
-  // in certain international characters (e.g. German umlauts).
-  $body_classes[] = preg_replace('![^abcdefghijklmnopqrstuvwxyz0-9-_]+!s', '', 'page-' . form_clean_id(drupal_strtolower(arg(0))));
-  // If on an individual node page, add the node type.
-  if (isset($variables['node']) && $variables['node']->type) {
-    $body_classes[] = 'node-type-' . form_clean_id($variables['node']->type);
-  }
-  // Add information about the number of sidebars.
-  if ($variables['layout'] == 'both') {
-    $body_classes[] = 'two-sidebars';
-  }
-  elseif ($variables['layout'] == 'none') {
-    $body_classes[] = 'no-sidebars';
-  }
-  else {
-    $body_classes[] = 'one-sidebar sidebar-' . $variables['layout'];
-  }
-  // Implode with spaces.
-  $variables['body_classes'] = implode(' ', $body_classes);
 
-  // Build a list of suggested template files in order of specificity. One
-  // suggestion is made for every element of the current path, though
-  // numeric elements are not carried to subsequent suggestions. For example,
-  // http://www.example.com/node/1/edit would result in the following
-  // suggestions:
+  // Build a list of suggested template files and body classes in order of 
+  // specificity. One suggestion is made for every element of the current path,
+  // though numeric elements are not carried to subsequent suggestions. For 
+  // example, http://www.example.com/node/1/edit would result in the following
+  // suggestions and body classes:
   //
-  // page-node-edit.tpl.php
-  // page-node-1.tpl.php
-  // page-node.tpl.php
+  // page-node-edit.tpl.php  page-node-edit
+  // page-node-1.tpl.php     page-node-1
+  // page-node.tpl.php       page-node
   // page.tpl.php
   $i = 0;
   $suggestion = 'page';
@@ -1941,14 +1920,38 @@ function template_preprocess_page(&$vari
     if (!is_numeric($arg)) {
       $suggestion .= '-' . $arg;
     }
+    if ($suggestion != 'page') {
+      // Add current suggestion to page classes to make it possible to theme the page 
+      // depending on the current page type (e.g. node, admin, user, etc.) as well as
+      // more specific data like node-12 or node-edit. To avoid illegal characters in 
+      // the class, we're removing everything disallowed. We are not using 'a-z' as
+      //  that might leave in certain international characters (e.g. German umlauts).
+      $body_classes[] = preg_replace('![^abcdefghijklmnopqrstuvwxyz0-9-_]+!s', '', form_clean_id(drupal_strtolower($suggestion)));
+    }
   }
   if (drupal_is_front_page()) {
     $suggestions[] = 'page-front';
   }
-
   if ($suggestions) {
     $variables['template_files'] = $suggestions;
   }
+
+  // If on an individual node page, add the node type to body classes.
+  if (isset($variables['node']) && $variables['node']->type) {
+    $body_classes[] = 'node-type-' . form_clean_id($variables['node']->type);
+  }
+  // Add information about the number of sidebars.
+  if ($variables['layout'] == 'both') {
+    $body_classes[] = 'two-sidebars';
+  }
+  elseif ($variables['layout'] == 'none') {
+    $body_classes[] = 'no-sidebars';
+  }
+  else {
+    $body_classes[] = 'one-sidebar sidebar-' . $variables['layout'];
+  }
+  // Implode with spaces.
+  $variables['body_classes'] = implode(' ', $body_classes);
 }
 
 /**