$template_html = $this->load_template($this->template, $subtemplate);
}
$template_html = preg_replace_callback('/%([^%]*)%/', array($this, "replace_placeholder"), $template_html);
$template_html = $this->load_template($this->template, $subtemplate);
}
$template_html = preg_replace_callback('/%([^%]*)%/', array($this, "replace_placeholder"), $template_html);