diff --git a/inc/commonglpi.class.php b/inc/commonglpi.class.php
index f9baa80e0f8..45ff3e68838 100644
--- a/inc/commonglpi.class.php
+++ b/inc/commonglpi.class.php
@@ -441,7 +441,7 @@ static function displayStandardTab(CommonGLPI $item, $tab, $withtemplate=0, $opt
                foreach ($ong as $key => $val) {
                   if ($key != 'empty') {
                      echo "<div class='alltab'>$val</div>";
-                     self::displayStandardTab($item, $key, $withtemplate);
+                     self::displayStandardTab($item, $key, $withtemplate, $options);
                   }
                }
             }
@@ -459,14 +459,24 @@ static function displayStandardTab(CommonGLPI $item, $tab, $withtemplate=0, $opt
             if (isset($data[1])) {
                $tabnum = $data[1];
             }
+
+            $options['withtemplate'] = $withtemplate;
+
             if ($tabnum == 'main') {
-               $options['withtemplate'] = $withtemplate;
-               return $item->showForm($item->getID(), $options);
+               Plugin::doHook('pre_show_item', array('item' => $item, 'options' => &$options));
+               $ret = $item->showForm($item->getID(), $options);
+               Plugin::doHook('post_show_item', array('item' => $item, 'options' => $options));
+               return $ret;
             }
 
             if (!is_integer($itemtype) && ($itemtype != 'empty')
                 && ($obj = getItemForItemtype($itemtype))) {
-               return $obj->displayTabContentForItem($item, $tabnum, $withtemplate);
+               $options['tabnum'] = $tabnum;
+               $options['itemtype'] = $itemtype;
+               Plugin::doHook('pre_show_tab', array( 'item' => $item, 'options' => &$options));
+               $ret = $obj->displayTabContentForItem($item, $tabnum, $withtemplate);
+               Plugin::doHook('post_show_tab', array('item' => $item, 'options' => $options));
+               return $ret;
             }
             break;
       }
@@ -612,7 +622,9 @@ function showPrimaryForm($options=array()) {
       }
       echo "<div class='form_content'>";
       echo "<div class='$class'>";
+      Plugin::doHook('pre_show_item', array('item' => $this, 'options' => &$options));
       $this->showForm($options['id'], $options);
+      Plugin::doHook('post_show_item', array('item' => $this, 'options' => $options));
       echo "</div>";
       echo "</div>";
    }
diff --git a/inc/commonitiltask.class.php b/inc/commonitiltask.class.php
index dd0dd932549..68378904bb1 100644
--- a/inc/commonitiltask.class.php
+++ b/inc/commonitiltask.class.php
@@ -1543,7 +1543,12 @@ function showSummary(CommonITILObject $item) {
 
          while ($data = $DB->fetch_assoc($result)) {
             if ($this->getFromDB($data['id'])) {
+               $options = array( 'parent' => $item, 
+                                 'rand' => $rand, 
+                                 'showprivate' => $showprivate ) ;
+               Plugin::doHook('pre_show_item', array('item' => $this, 'options' => &$options));
                $this->showInObjectSumnary($item, $rand, $showprivate);
+               Plugin::doHook('post_show_item', array('item' => $this, 'options' => $options));
             }
          }
          echo $header;
diff --git a/inc/ticket.class.php b/inc/ticket.class.php
index 876dcce687a..a990fa71526 100644
--- a/inc/ticket.class.php
+++ b/inc/ticket.class.php
@@ -6281,7 +6281,14 @@ function showTimeline($rand) {
 
       $timeline_index = 0;
       foreach ($timeline as $item) {
-         $item_i = $item['item'];
+         $options = array( 'parent' => $this,
+                           'rand' => $rand
+                           ) ;
+         $obj = new $item['type'] ;
+         $obj->fields = $item['item'] ;
+         Plugin::doHook('pre_show_item', array('item' => $obj, 'options' => &$options));
+
+         $item_i = $obj->fields;
 
          $date = "";
          if (isset($item_i['date'])) {
@@ -6480,6 +6487,9 @@ function showTimeline($rand) {
          echo "</div>"; //end  h_info
 
          $timeline_index++;
+
+         Plugin::doHook('post_show_item', array('item' => $obj, 'options' => $options));
+
       } // end foreach timeline
 
       echo "<div class='break'></div>";
diff --git a/inc/ticketfollowup.class.php b/inc/ticketfollowup.class.php
index 5f725821a4f..893402d60ae 100644
--- a/inc/ticketfollowup.class.php
+++ b/inc/ticketfollowup.class.php
@@ -910,6 +910,12 @@ function showSummary($ticket) {
 
          while ($data = $DB->fetch_assoc($result)) {
             $this->getFromDB($data['id']);
+            $options = array( 'parent' => $ticket,
+                              'rand'   => $rand
+                           );
+            Plugin::doHook('pre_show_item', array('item' => $this, 'options' => &$options));
+            $data = array_merge( $data, $this->fields );
+
             $candelete = $this->canPurge() && $this->canPurgeItem();
             $canedit   = $this->canUpdate() && $this->canUpdateItem();
 
@@ -1004,6 +1010,7 @@ function showSummary($ticket) {
                echo "};";
                echo "</script>\n";
             }
+            Plugin::doHook('post_show_item', array('item' => $this, 'options' => $options));
          }
       }
    }