extract.php

<?php
$style = "include/style.php";
$js = "include/js.php";

$dom = new DOMDocument;
$dom->loadHTMLFile('/home/kiwi/public_html/index.html');

$head = $dom->getElementsByTagName('head')->item(0);
$css = $head->getElementsByTagName("link")->item(1);
$fh = fopen($style, 'w');
$data = "<link href=".$css->getAttribute("href")." rel=stylesheet>";
fwrite($fh, $data);
fclose($fh);

$body = $dom->getElementsByTagName('body')->item(0);
$scripts = $body->getElementsByTagName("script");
$fh = fopen($js, 'w');
$data = "";
foreach($scripts as $s) {
        $data .="<script type=text/javascript src=".$s->getAttribute("src")."></script>";
}
fwrite($fh, $data);
fclose($fh);
?>