private function getTextBlockData($block_id, $page_id, $section_id)
{
PHPWS_Core::initModClass('pagesmith', 'PS_Text.php');
$content = null;
if (!empty($block_id)) {
$ps_block = new PS_Text($block_id);
$content = $ps_block->getContent(true, false);
$this->setUndoSession($page_id, $block_id, $content);
} elseif (isset($_SESSION['page_undo'][$page_id][$section_id])) {
echo end($_SESSION['page_undo'][$page_id][$section_id]);
}
echo $content;
}
