AppCache::replaceUrlCSS

static function replaceUrlCSS($url, $cssPath)
{
	if (strpos($url, "://") !== false || strpos($url, "data:") !== false)
	{
		return $url;
	}
	$url = trim(stripslashes($url), "'" rnt");
	if (mb_substr($url, 0, 1) == "/")
	{
		return $url;
	}

	return $cssPath . '/' . $url;
}