function _education() {
 //
 // main submodule for education
 // calls form_education()
 //       display_education()
 //       process_education()
 //
     // always check dependencies
     if ($exitinfo = $this->missing_dependencies('education')) {
         return print($exitinfo);
     }
     if (func_num_args()>0) {
         $arg_list = func_get_args();
         $menu_id = $arg_list[0];
         $post_vars = $arg_list[1];
         $get_vars = $arg_list[2];
         $validuser = $arg_list[3];
         $isadmin = $arg_list[4];
         //print_r($arg_list);
     }
     $e = new education;
     if ($post_vars["submiteducation"]) {
         $e->process_education($menu_id, $post_vars, $get_vars);
     }
     $e->display_education($menu_id, $post_vars, $get_vars);
     $e->form_education($menu_id, $post_vars, $get_vars);
 }