<input type="hidden" name="modulename" value="<?php p($form->modulename) ?>" />
<input type="hidden" name="instance" value="<?php p($form->instance) ?>" />
<input type="hidden" name="mode" value="<?php p($form->mode) ?>" />
+ <input type="hidden" name="visible" value="<?php p($form->visible) ?>" />
<input type="hidden" name="groupmode" value="<?php p($form->groupmode) ?>" />
<center>
<input type="submit" value="<?php print_string("savechanges") ?>" />