diff --git a/htdocs/categories/viewcat.php b/htdocs/categories/viewcat.php
index 255dc4888aa..1f7b41df085 100644
--- a/htdocs/categories/viewcat.php
+++ b/htdocs/categories/viewcat.php
@@ -67,13 +67,14 @@ $extrafields = new ExtraFields($db);
 $extralabels = $extrafields->fetch_name_optionals_label($object->table_element);
 
 // Initialize technical object to manage hooks. Note that conf->hooks_modules contains array array
-$hookmanager->initHooks(array('categorycard'));
+$hookmanager->initHooks(array('categorycard','globalcard'));
 
 
 /*
  *	Actions
  */
-
+$parameters=array();
+$reshook=$hookmanager->executeHooks('doActions',$parameters,$object,$action);    // Note that $action and $object may have been modified by some hooks
 // Remove element from category
 if ($id > 0 && $removeelem > 0)
 {
diff --git a/htdocs/contrat/card.php b/htdocs/contrat/card.php
index 0ca4b4d879d..92290ee0656 100644
--- a/htdocs/contrat/card.php
+++ b/htdocs/contrat/card.php
@@ -1511,9 +1511,11 @@ else
 
 		// Title line for service
 		$cursorline=1;
-		while ($cursorline <= $nbofservices)
+		print '<div id="contrat-lines-container" data-contractid="'.$object->id.'"  data-element="'.$object->element.'" >';
+        	while ($cursorline <= $nbofservices)
 		{
-			print '<form name="update" action="'.$_SERVER['PHP_SELF'].'?id='.$object->id.'" method="post">';
+			print '<div id="contrat-line-container'.$object->lines[$cursorline-1]->id.'" data-contratlineid = "'.$object->lines[$cursorline-1]->id.'" data-element="'.$object->lines[$cursorline-1]->element.'" >';
+            		print '<form name="update" action="'.$_SERVER['PHP_SELF'].'?id='.$object->id.'" method="post">';
 			print '<input type="hidden" name="token" value="'.$_SESSION['newtoken'].'">';
 			print '<input type="hidden" name="action" value="updateline">';
 			print '<input type="hidden" name="elrowid" value="'.$object->lines[$cursorline-1]->id.'">';
@@ -2027,9 +2029,10 @@ else
 
 				print '</form>';
 			}
-
+			print '</div>';
 			$cursorline++;
 		}
+		print '</div>';
 
 		// Form to add new line
 		if ($user->rights->contrat->creer && ($object->statut == 0))
diff --git a/htdocs/societe/class/api_thirdparties.class.php b/htdocs/societe/class/api_thirdparties.class.php
index 7326d99e2b7..6910f5d6dc3 100644
--- a/htdocs/societe/class/api_thirdparties.class.php
+++ b/htdocs/societe/class/api_thirdparties.class.php
@@ -552,7 +552,45 @@ class Thirdparties extends DolibarrApi
       return $this->company;
     }
 
+    /**
+     * Delete category to a thirdparty
+     *
+     * @param int		$id	Id of thirdparty
+     * @param array     $request_data   Request datas
+     *
+     * @return mixed
+     *
+     * @url POST {id}/deleteCategory
+     */
+    function deleteCategory($id, $request_data = NULL) {
+        if (!isset($request_data["category_id"]))
+            throw new RestException(400, "category_id field missing");
+        $category_id = $request_data["category_id"];
 
+      if(! DolibarrApiAccess::$user->rights->societe->creer) {
+			  throw new RestException(401);
+      }
+
+      $result = $this->company->fetch($id);
+      if( ! $result ) {
+          throw new RestException(404, 'Thirdparty not found');
+      }
+      $category = new Categorie($this->db);
+      $result = $category->fetch($category_id);
+      if( ! $result ) {
+          throw new RestException(404, 'category not found');
+      }
+
+      if( ! DolibarrApi::_checkAccessToResource('societe',$this->company->id)) {
+        throw new RestException(401, 'Access not allowed for login '.DolibarrApiAccess::$user->login);
+      }
+      if( ! DolibarrApi::_checkAccessToResource('category',$category->id)) {
+        throw new RestException(401, 'Access not allowed for login '.DolibarrApiAccess::$user->login);
+      }
+
+      $category->del_type($this->company,'customer');
+      return $this->company;
+    }
 
     /**
      * Get outstanding proposals of thirdparty