refresh default settings

I would suggest to set the default value to '' instead 0 see line 37:

31 function refresh_form_node_form_alter(&$form, $form_state) {
32 if (isset($form['#node']->refresh)) {
33 $refresh = $form['#node']->refresh;
34 }
35 else {
36 $refresh = '';
37 }

Reason: if it is 0 during creating new pages the value must be set to a number or to '' otherwise it is impossible to save the page. The User do not know why the page will not be saved (also if the error is shown) if the module will be installed on a working page.

Knut