public function deletewidgets(twidget $widget)
 {
     $widgets = twidgets::i();
     $widgets->lock();
     $widget->lock();
     foreach ($_POST as $key => $value) {
         if (strbegin($key, 'widgetcheck-')) {
             $widget->delete((int) $value);
         }
     }
     $widget->unlock();
     $widgets->unlock();
 }