diff --git a/dev/skeletons/skeleton_card.php b/dev/skeletons/skeleton_card.php
index 03f70955527..d6dc0cf58c1 100644
--- a/dev/skeletons/skeleton_card.php
+++ b/dev/skeletons/skeleton_card.php
@@ -322,7 +322,7 @@ if ($id && (empty($action) || $action == 'view' || $action == 'delete'))
 
 
 	// Example 2 : Adding links to objects
-	//$somethingshown=$form->showLinkedObjectBlock($object);
+	//$somethingshown=Form::showLinkedObjectBlock($object);
 	//$linktoelem = $form->showLinkToObjectBlock($object);
 	//if ($linktoelem) print '<br>'.$linktoelem;
 
diff --git a/htdocs/comm/propal.php b/htdocs/comm/propal.php
index 3c330576f04..7ff42a737b4 100644
--- a/htdocs/comm/propal.php
+++ b/htdocs/comm/propal.php
@@ -2350,7 +2350,7 @@ if ($action == 'create')
 		$somethingshown = $formfile->show_documents('propal', $filename, $filedir, $urlsource, $genallowed, $delallowed, $object->modelpdf, 1, 0, 0, 28, 0, '', 0, '', $soc->default_lang);
 
 		// Linked object block
-		$somethingshown = $form->showLinkedObjectBlock($object);
+		$somethingshown = Form::showLinkedObjectBlock($object);
 
 		// Show links to link elements
 		$linktoelem = $form->showLinkToObjectBlock($object);
diff --git a/htdocs/commande/card.php b/htdocs/commande/card.php
index 78de2c70fa7..37fdf8aa7a4 100644
--- a/htdocs/commande/card.php
+++ b/htdocs/commande/card.php
@@ -2584,7 +2584,7 @@ if ($action == 'create' && $user->rights->commande->creer)
 			$somethingshown = $formfile->show_documents('commande', $comref, $filedir, $urlsource, $genallowed, $delallowed, $object->modelpdf, 1, 0, 0, 28, 0, '', '', '', $soc->default_lang);
 
 			// Linked object block
-			$somethingshown = $form->showLinkedObjectBlock($object);
+			$somethingshown = Form::showLinkedObjectBlock($object);
 
 			// Show links to link elements
 			//$linktoelem = $form->showLinkToObjectBlock($object);
diff --git a/htdocs/compta/facture.php b/htdocs/compta/facture.php
index 5a00c796038..b70caf8b667 100644
--- a/htdocs/compta/facture.php
+++ b/htdocs/compta/facture.php
@@ -4046,7 +4046,7 @@ else if ($id > 0 || ! empty($ref))
 		$somethingshown = $formfile->numoffiles;
 
 		// Linked object block
-		$somethingshown = $form->showLinkedObjectBlock($object);
+		$somethingshown = Form::showLinkedObjectBlock($object);
 
 		// Show links to link elements
 		$linktoelem = $form->showLinkToObjectBlock($object,array('order'));
diff --git a/htdocs/compta/facture/fiche-rec.php b/htdocs/compta/facture/fiche-rec.php
index 76a991dfdd1..e44c9e96fb4 100644
--- a/htdocs/compta/facture/fiche-rec.php
+++ b/htdocs/compta/facture/fiche-rec.php
@@ -983,7 +983,7 @@ else
 		print '<a name="builddoc"></a>'; // ancre
 		
 		// Linked object block
-		$somethingshown = $form->showLinkedObjectBlock($object);
+		$somethingshown = Form::showLinkedObjectBlock($object);
 		
         print '</div></div>';
 
diff --git a/htdocs/contrat/card.php b/htdocs/contrat/card.php
index 427e0962b6d..2b5b3961066 100644
--- a/htdocs/contrat/card.php
+++ b/htdocs/contrat/card.php
@@ -2015,7 +2015,7 @@ else
         $somethingshown = $formfile->show_documents('contract', $filename, $filedir, $urlsource, $genallowed, $delallowed, $object->modelpdf, 1, 0, 0, 28, 0, '', 0, '', $soc->default_lang);
 
 		// Linked object block
-		$somethingshown = $form->showLinkedObjectBlock($object);
+		$somethingshown = Form::showLinkedObjectBlock($object);
 
 		// Show links to link elements
 		$linktoelem = $form->showLinkToObjectBlock($object);
diff --git a/htdocs/core/class/commonobject.class.php b/htdocs/core/class/commonobject.class.php
index a65573a7947..d44230d3eb6 100644
--- a/htdocs/core/class/commonobject.class.php
+++ b/htdocs/core/class/commonobject.class.php
@@ -3115,13 +3115,13 @@ abstract class CommonObject
      * Show linked object block.
      *
      * @return int <0 if KO, >0 if OK
-     * @deprecated 3.8 Use instead $form->showLinkedObjectBlock($object)
+     * @deprecated 3.8 Use instead Form::showLinkedObjectBlock($object)
      * @see Form::showLinkedObjectBlock
      */
     function showLinkedObjectBlock()
     {
     	global $form;
-    	return $form->showLinkedObjectBlock($this);
+    	return Form::showLinkedObjectBlock($this);
     }
 
 
diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index acbe2391816..4ce4d393355 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -5077,7 +5077,7 @@ class Form
      *  @param	CommonObject	$object		Object we want to show links to
      *  @return	int							<0 if KO, >0 if OK
      */
-    function showLinkedObjectBlock(CommonObject $object)
+    public static function showLinkedObjectBlock(CommonObject $object)
     {
         global $conf,$langs,$hookmanager;
         global $bc;
diff --git a/htdocs/expedition/card.php b/htdocs/expedition/card.php
index 8108c0e33cd..6b75f1c5142 100644
--- a/htdocs/expedition/card.php
+++ b/htdocs/expedition/card.php
@@ -1802,7 +1802,7 @@ else if ($id || $ref)
 		$somethingshown=$formfile->show_documents('expedition',$objectref,$filedir,$urlsource,$genallowed,$delallowed,$object->modelpdf,1,0,0,28,0,'','','',$soc->default_lang);
 
 		// Linked object block
-		$somethingshown = $form->showLinkedObjectBlock($object);
+		$somethingshown = Form::showLinkedObjectBlock($object);
 
 		// Show links to link elements
 		//$linktoelem = $form->showLinkToObjectBlock($object);
diff --git a/htdocs/expensereport/card.php b/htdocs/expensereport/card.php
index a31462cd977..285bed70386 100644
--- a/htdocs/expensereport/card.php
+++ b/htdocs/expensereport/card.php
@@ -2107,7 +2107,7 @@ if ($action != 'create' && $action != 'edit' && ($id || $ref))
         $result = $object->add_object_linked('fichinter', GETPOST('LinkedFichinter'));
     }
     // Linked object block
-    $somethingshown = $form->showLinkedObjectBlock($object);
+    $somethingshown = Form::showLinkedObjectBlock($object);
 
     // Show links to link elements
     $linktoelements=array();
diff --git a/htdocs/fichinter/card.php b/htdocs/fichinter/card.php
index 19dfd0f3fc2..4a55cad6d19 100644
--- a/htdocs/fichinter/card.php
+++ b/htdocs/fichinter/card.php
@@ -1783,7 +1783,7 @@ else if ($id > 0 || ! empty($ref))
 		$somethingshown=$formfile->show_documents('ficheinter',$filename,$filedir,$urlsource,$genallowed,$delallowed,$object->modelpdf,1,0,0,28,0,'','','',$soc->default_lang);
 
 		// Linked object block
-		$somethingshown = $form->showLinkedObjectBlock($object);
+		$somethingshown = Form::showLinkedObjectBlock($object);
 
 		// Show links to link elements
 		//$linktoelem = $form->showLinkToObjectBlock($object);
diff --git a/htdocs/fourn/commande/card.php b/htdocs/fourn/commande/card.php
index aadbc7f663f..95c2afe2c91 100644
--- a/htdocs/fourn/commande/card.php
+++ b/htdocs/fourn/commande/card.php
@@ -2954,7 +2954,7 @@ elseif (! empty($object->id))
 		$somethingshown=$formfile->numoffiles;
 
 		// Linked object block
-		$somethingshown = $form->showLinkedObjectBlock($object);
+		$somethingshown = Form::showLinkedObjectBlock($object);
 		
 		// Show links to link elements
 		//$linktoelem = $form->showLinkToObjectBlock($object);
diff --git a/htdocs/fourn/facture/card.php b/htdocs/fourn/facture/card.php
index f76c411b0f2..65dacd0bcb0 100644
--- a/htdocs/fourn/facture/card.php
+++ b/htdocs/fourn/facture/card.php
@@ -2371,7 +2371,7 @@ else
 	                $somethingshown=$formfile->numoffiles;
 	
 					// Linked object block
-					$somethingshown = $form->showLinkedObjectBlock($object);
+					$somethingshown = Form::showLinkedObjectBlock($object);
 	
 					// Show links to link elements
 					$linktoelem = $form->showLinkToObjectBlock($object,array('supplier_order'));
diff --git a/htdocs/livraison/card.php b/htdocs/livraison/card.php
index 34566a70e0b..410ade379fc 100644
--- a/htdocs/livraison/card.php
+++ b/htdocs/livraison/card.php
@@ -887,7 +887,7 @@ else
 				$shipment->fetch($object->origin_id);
 
 				// Linked object block
-				$somethingshown = $form->showLinkedObjectBlock($shipment);
+				$somethingshown = Form::showLinkedObjectBlock($shipment);
 
 				// Show links to link elements
 				//$linktoelem = $form->showLinkToObjectBlock($shipment);
diff --git a/htdocs/supplier_proposal/card.php b/htdocs/supplier_proposal/card.php
index b8eca021271..5dd6c7eb2b6 100644
--- a/htdocs/supplier_proposal/card.php
+++ b/htdocs/supplier_proposal/card.php
@@ -1832,7 +1832,7 @@ if ($action == 'create')
 		$somethingshown = $formfile->show_documents('supplier_proposal', $filename, $filedir, $urlsource, $genallowed, $delallowed, $object->modelpdf, 1, 0, 0, 28, 0, '', 0, '', $soc->default_lang);
 
 		// Linked object block
-		$somethingshown = $form->showLinkedObjectBlock($object);
+		$somethingshown = Form::showLinkedObjectBlock($object);
 
 		// Show links to link elements
 		//$linktoelem = $form->showLinkToObjectBlock($object);