--- relativity.module.orig	2007-03-26 13:53:29.000000000 +0200
+++ relativity.module	2007-03-26 14:47:09.000000000 +0200
@@ -1385,6 +1385,16 @@
         $type_name = $type;
       }
       
+			// implement the hook_relativity_links which allows other modules
+			// to control showing children links
+			$hook = 'relativity_links';
+			$modules = module_implements($hook);
+			foreach ($modules as $module) {
+				if (module_invoke($module, $hook, $parent, $childtype) === FALSE) {
+					break 2;
+				}
+			}
+
       $may_create = relativity_may_attach_new_child_type($parent->type, $type);
 
       // only offer to let user create new child if user has 'create' access