--- editcategory_form.php.old	2008-05-20 15:57:04.643444112 +0200
+++ editcategory_form.php	2008-05-20 16:01:35.578255760 +0200
@@ -11,6 +11,7 @@
         $options = array(get_string('top'));
         $parents = array();
         make_categories_list($options, $parents);
+        $options = remove_self_and_children_categories($options, $parents, $this->_customdata['id']);
         
         $mform->addElement('select', 'parent', get_string('parentcategory'), $options);
         $mform->addElement('text', 'name', get_string('categoryname'), array('size'=>'30'));