phpQuery::newDocumentFileHTML PHP Method

    public static function newDocumentFileHTML($file, $charset = null)
    {
        $contentType = $charset ? ";charset={$charset}" : '';
        return self::newDocumentFile($file, "text/html{$contentType}");
    }

 public function getManagerPage($errors = array())
 {
     $html = phpQuery::newDocumentFileHTML(MVBAPK_HTML_DIR . 'admin/manager-page.html');
     if ($_POST['submited']) {
         if (count($errors)) {
             $html['#notice-message > div:first']->removeClass('ui-state-highlight');
             $html['#notice-message > div:first']->addClass('ui-state-error');
             $html['#notice-message #message']->html(implode('<br/>', $errors));
         }
     } else {
         $html['#notice-message']->addClass('dialog');
     }
     //add list of styles
     $styles = $this->modelNode->getStyleList();
     if (is_array($styles)) {
         foreach ($styles as $id => $style) {
             $id = esc_attr($id);
             $label = esc_js($style['label']);
             $html['#style']->append("<option value='{$id}'>{$label}</option>");
         }
         reset($styles);
         $first = current($styles);
         $html['#current-style-display'] = $first['label'];
     }
     echo $html->htmlOuter();
 }