0 || strpos($_SERVER["HTTP_USER_AGENT"], "W3C_Validator")!==false || strpos($_SERVER["HTTP_USER_AGENT"], "WebKit")!==false; header('Content-Type: '.($xhtml?'application/xhtml+x':'text/ht').'ml; charset="utf-8"'); #IE doesn't support application/xhtml+xml - workaround echo ''; ?>