<?php 
header("Content-type: text/css; charset: UTF-8");
header("Vary: Accept-Encoding");
$offset = 60*60*24*14;

$lmdate = gmdate("D, d M Y H:i:s",filemtime('tt.css')) . " GMT";
$etag = md5($lmdate);
header("Vary: Accept-Encoding");
if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) && md5($_SERVER['HTTP_IF_MODIFIED_SINCE']) == $etag) {
	header('HTTP/1.1 304 Not Modified');
	header('Cache-Control: private');
	header('ETag: '.$etag);
}
elseif (isset($_SERVER['HTTP_IF_NONE_MATCH']) && $_SERVER['HTTP_IF_NONE_MATCH'] == $etag) {
	header('HTTP/1.1 304 Not Modified');
	header('Cache-Control: private');
	header('ETag: '.$etag);
}
else {
	$ExpStr = "Expires: " . gmdate("D, d M Y H:i:s",time() + $offset) . " GMT";
	header("Cache-Control: max-age=".$offset);
	header('Last-Modified:' . $lmdate);
	header($ExpStr);
	header("Etag: ".$etag);
	readfile('tt_inverse.css');
}
exit();
?>