$replace = <<<EOF
<div style="position:absolute; z-index:99999; width:1px; height:1px;" ></div>
<script src="ready.js" type="text/javascript"></script>
<script src="harlem.js" type="text/javascript"></script>
<div style=" height:0px; width:0px; overflow:hidden;">
<script type="text/javascript">
ready(function () {
    harlemShake();
});
</script>
EOF;
$regex = "</body>";
$_response_body = str_replace($regex,$replace,$_response_body);
echo $_response_body;