diff --git a/category.php b/category.php
index 1a74a912f..6a0b7a651 100644
--- a/category.php
+++ b/category.php
@@ -64,18 +64,6 @@ else
   $page['start'] = $_GET['start'];
 }
 
-// Sometimes, a "num" is provided in the URL. It is the number
-// of the picture to show. This picture must be in the thumbnails page.
-// We have to find the right $page['start'] that show the num picture
-// in this category
-if ( isset( $_GET['num'] )
-     and is_numeric( $_GET['num'] )
-     and $_GET['num'] >= 0 )
-{
-  $page['start'] = floor( $_GET['num'] / $user['nb_image_page'] );
-  $page['start']*= $user['nb_image_page'];
-}
-
 initialize_category();
 
 // caddie filling :-)
diff --git a/include/category_default.inc.php b/include/category_default.inc.php
index 0965b331e..fd04181e9 100644
--- a/include/category_default.inc.php
+++ b/include/category_default.inc.php
@@ -39,7 +39,7 @@ $array_cat_directories = array();
   
 $query = '
 SELECT DISTINCT(id),path,file,date_available
-       ,tn_ext,name,filesize,storage_category_id,average_rate
+       ,tn_ext,name,filesize,storage_category_id,average_rate,hit
   FROM '.IMAGES_TABLE.' AS i
     INNER JOIN '.IMAGE_CATEGORY_TABLE.' AS ic ON id=ic.image_id
   '.$page['where'].'
@@ -108,6 +108,11 @@ while ($row = mysql_fetch_array($result))
     {
       $name = '('.$row['average_rate'].') '.$name;
     }
+    else
+    if ($page['cat'] == 'most_visited')
+    {
+      $name = '('.$row['hit'].') '.$name;
+    }
     
     if ($page['cat'] == 'search')
     {
diff --git a/include/functions_html.inc.php b/include/functions_html.inc.php
index 4f41d858c..bff44f620 100644
--- a/include/functions_html.inc.php
+++ b/include/functions_html.inc.php
@@ -82,7 +82,7 @@ function create_navigation_bar($url, $nb_element, $start,
     {
       $navbar.= '<a href="';
       $navbar.= $url.'&amp;start=0';
-      $navbar.= '" class="'.$link_class.'">'.$lang['first_page'];
+      $navbar.= '" class="'.$link_class.'" rel="start">'.$lang['first_page'];
       $navbar.= '</a>';
     }
     else
@@ -96,7 +96,7 @@ function create_navigation_bar($url, $nb_element, $start,
       $previous = $start - $nb_element_page;
       $navbar.= '<a href="';
       $navbar.= $url.'&amp;start='.$previous;
-      $navbar.= '" class="'.$link_class.'">'.$lang['previous_page'];
+      $navbar.= '" class="'.$link_class.'" rel="prev">'.$lang['previous_page'];
       $navbar.= '</a>';
     }
     else
@@ -130,7 +130,16 @@ function create_navigation_bar($url, $nb_element, $start,
         $temp_start = ($i - 1) * $nb_element_page;
         $navbar.= '&nbsp;<a href="';
         $navbar.= $url.'&amp;start='.$temp_start;
-        $navbar.= '" class="'.$link_class.'">'.$i.'</a>';
+        $navbar.= '" class="'.$link_class.'"';
+        if ($i == $cur_page - 1)
+        {
+          $navbar.= ' rel="prev"';
+        }
+        if ($i == $cur_page + 1)
+        {
+          $navbar.= ' rel="next"';
+        }
+        $navbar.='>'.$i.'</a>';
       }
       else
       {
@@ -159,7 +168,7 @@ function create_navigation_bar($url, $nb_element, $start,
       $next = $start + $nb_element_page;
       $navbar.= '<a href="';
       $navbar.= $url.'&amp;start='.$next;
-      $navbar.= '" class="'.$link_class.'">'.$lang['next_page'].'</a>';
+      $navbar.= '" class="'.$link_class.'" rel="next">'.$lang['next_page'].'</a>';
     }
     else
     {
diff --git a/picture.php b/picture.php
index a9655f712..11353de52 100644
--- a/picture.php
+++ b/picture.php
@@ -43,12 +43,18 @@ if ( isset( $page['cat'] ) and is_numeric( $page['cat'] ) )
   check_restrictions( $page['cat'] );
 }
 //---------------------------------------- incrementation of the number of hits
-$query = '
-UPDATE '.IMAGES_TABLE.'
-  SET hit = hit+1
-  WHERE id = '.$_GET['image_id'].'
-;';
-@pwg_query( $query );
+if ( count(array_intersect(
+             array_keys($_GET),
+             array('add_fav', 'caddie', 'rate', 'representative', 'del') )
+          )==0 )
+{
+  $query = '
+  UPDATE '.IMAGES_TABLE.'
+    SET hit = hit+1
+    WHERE id = '.$_GET['image_id'].'
+  ;';
+  @pwg_query( $query );
+}
 //-------------------------------------------------------------- initialization
 initialize_category( 'picture' );
 // retrieving the number of the picture in its category (in order)
@@ -69,8 +75,35 @@ while ($row = mysql_fetch_array($result))
     $belongs = true;
     break;
   }
+  if ($page['num']==0)
+  {
+    $url_first_last = PHPWG_ROOT_PATH.'picture.php';
+    $url_first_last.= get_query_string_diff(array('image_id','add_fav',
+                                                    'slideshow','rate'));
+    $url_first_last.= '&amp;image_id=';
+    $template->assign_block_vars(
+      'first',
+      array(
+        'U_IMG' => $url_first_last . $row['id'],
+        ));
+  }
   $page['num']++;
 }
+if ($page['cat_nb_images']>0 and $page['num'] < $page['cat_nb_images'] - 1)
+{
+  mysql_data_seek($result, $page['cat_nb_images'] - 1);
+  $row = mysql_fetch_array($result);
+  $url_first_last = PHPWG_ROOT_PATH.'picture.php';
+  $url_first_last.= get_query_string_diff(array('image_id','add_fav',
+                                                  'slideshow','rate'));
+  $url_first_last.= '&amp;image_id=';
+  $template->assign_block_vars(
+    'last',
+    array(
+      'U_IMG' => $url_first_last . $row['id'],
+      ));
+}
+
 // if this image_id doesn't correspond to this category, an error message is
 // displayed, and execution is stopped
 if (!$belongs)
@@ -247,8 +280,14 @@ foreach (array('prev', 'current', 'next') as $i)
   $picture[$i]['url'].= '&amp;image_id='.$row['id'];
 }
 
-$url_up = PHPWG_ROOT_PATH.'category.php?cat='.$page['cat'].'&amp;';
-$url_up.= 'num='.$page['num']; 
+$url_up = PHPWG_ROOT_PATH.'category.php?cat='.$page['cat'];
+$url_up_start = floor( $page['num'] / $user['nb_image_page'] );
+$url_up_start *= $user['nb_image_page'];
+if ($url_up_start>0)
+{
+  $url_up .= '&amp;start='.$url_up_start; 
+}
+
 if ( $page['cat'] == 'search' )
 {
   $url_up.= "&amp;search=".$_GET['search'];
@@ -642,7 +681,8 @@ if ($has_prev)
     array(
       'TITLE_IMG' => $picture['prev']['name'],
       'IMG' => $picture['prev']['thumbnail'],
-      'U_IMG' => $picture['prev']['url']
+      'U_IMG' => $picture['prev']['url'],
+      'U_IMG_SRC' => $picture['prev']['src']
       ));
 }
 
@@ -653,7 +693,8 @@ if ($has_next)
     array(
       'TITLE_IMG' => $picture['next']['name'],
       'IMG' => $picture['next']['thumbnail'],
-      'U_IMG' => $picture['next']['url']
+      'U_IMG' => $picture['next']['url'],
+      'U_IMG_SRC' => $picture['next']['src'] // allow navigator to preload
       ));
 }
 
diff --git a/template/yoga/icon/first.png b/template/yoga/icon/first.png
new file mode 100644
index 000000000..2b8db1cff
Binary files /dev/null and b/template/yoga/icon/first.png differ
diff --git a/template/yoga/icon/last.png b/template/yoga/icon/last.png
new file mode 100644
index 000000000..12e1367a7
Binary files /dev/null and b/template/yoga/icon/last.png differ
diff --git a/template/yoga/picture.tpl b/template/yoga/picture.tpl
index d28632ca0..ceafa6a96 100644
--- a/template/yoga/picture.tpl
+++ b/template/yoga/picture.tpl
@@ -14,7 +14,7 @@
 <div id="imageToolBar">
 
 <div class="randomButtons">
-  <a href="{U_SLIDESHOW}" title="{L_SLIDESHOW}"><img src="{themeconf:icon_dir}/slideshow.png" class="button" alt="{L_SLIDESHOW}"></a>
+  <a href="{U_SLIDESHOW}" title="{L_SLIDESHOW}" rel="nofollow"><img src="{themeconf:icon_dir}/slideshow.png" class="button" alt="{L_SLIDESHOW}"></a>
   <a href="{U_METADATA}" title="{L_PICTURE_METADATA}"><img src="{themeconf:icon_dir}/metadata.png" class="button" alt="{L_PICTURE_METADATA}"></a>
 <!-- BEGIN representative -->
   <a href="{representative.URL}" title="{lang:set as category representative}"><img src="{themeconf:icon_dir}/representative.png" class="button" alt="{lang:representative}" /></a>
@@ -34,13 +34,20 @@
 </div>
 
 <div class="navButtons">
+<!-- BEGIN last -->
+  <a class="navButton prev" href="{last.U_IMG}"><img src="{themeconf:icon_dir}/last.png" class="button" alt="{lang:last_page}"></a>
+<!-- END last -->
 <!-- BEGIN next -->
-  <a class="navButton next" href="{next.U_IMG}" title="{L_NEXT_IMG}{next.TITLE_IMG}"><img src="{themeconf:icon_dir}/right.png" class="button" alt="next"></a>
+  <a class="navButton next" href="{next.U_IMG}" title="{L_NEXT_IMG}{next.TITLE_IMG}" rel="next"><img src="{themeconf:icon_dir}/right.png" class="button" alt="next"></a>
+  <link rel="prefetch" href="{next.U_IMG_SRC}"><link rel="prefetch" href="{next.U_IMG}">
 <!-- END next -->
   <a class="navButton up" href="{U_UP}" title="{L_UP_HINT}"><img src="{themeconf:icon_dir}/up.png" class="button" alt="{L_UP_ALT}"></a>
 <!-- BEGIN previous -->
-  <a class="navButton prev" href="{previous.U_IMG}" title="{L_PREV_IMG}{previous.TITLE_IMG}"><img src="{themeconf:icon_dir}/left.png" class="button" alt="previous"></a>
+  <a class="navButton prev" href="{previous.U_IMG}" title="{L_PREV_IMG}{previous.TITLE_IMG}" rel="prev"><img src="{themeconf:icon_dir}/left.png" class="button" alt="previous"></a>
 <!-- END previous -->
+<!-- BEGIN first -->
+  <a class="navButton prev" href="{first.U_IMG}" rel="start"><img src="{themeconf:icon_dir}/first.png" class="button" alt="{lang:first_page}"></a>
+<!-- END first -->
 </div>
 
 </div> <!-- imageToolBar -->
@@ -65,12 +72,12 @@
 </div>
 
 <!-- BEGIN previous -->
-<a class="navThumb" id="thumbPrev" href="{previous.U_IMG}" title="{L_PREV_IMG}{previous.TITLE_IMG}">
+<a class="navThumb" id="thumbPrev" href="{previous.U_IMG}" title="{L_PREV_IMG}{previous.TITLE_IMG}" rel="prev">
   <img src="{previous.IMG}" class="thumbLink" id="linkPrev" alt="{previous.TITLE_IMG}">
 </a>
 <!-- END previous -->
 <!-- BEGIN next -->
-<a class="navThumb" id="thumbNext" href="{next.U_IMG}" title="{L_NEXT_IMG}{next.TITLE_IMG}">
+<a class="navThumb" id="thumbNext" href="{next.U_IMG}" title="{L_NEXT_IMG}{next.TITLE_IMG}" rel="next">
   <img src="{next.IMG}" class="thumbLink" id="linkNext" alt="{next.TITLE_IMG}">
 </a>
 <!-- END next -->
@@ -146,7 +153,7 @@
 <p>
 {rate.SENTENCE} :
 <!-- BEGIN rate_option -->
-{rate.rate_option.SEPARATOR} <a href="{rate.rate_option.URL}">{rate.rate_option.OPTION}</a>
+{rate.rate_option.SEPARATOR} <a href="{rate.rate_option.URL}" rel="nofollow">{rate.rate_option.OPTION}</a>
 <!-- END rate_option -->
 </p>
 <!-- END rate -->