Function modific_oldid($id){
		foreach ($this->xdoc->getElementsByTagName('g') as $elem) {
			$elem->setIdAttribute("id", true);
			$idcurent = $elem->getAttribute("id");
			if (substr($idcurent,0,5) == 'part-'){
				echo $elem->nodeType();
				//$elem->parentNode->removeChild($elem);
			}
		}

	}