Untitled

<? 
if (isset($_SERVER["HTTP_ACCEPT"])) 
{ 
  $mime = (stristr($_SERVER["HTTP_ACCEPT"], "application/xhtml+xml")) ? "application/xhtml+xml" : "text/html"; 
} else { 
  $mime = "text/html"; 
} 
header("content-type: $mime; charset=utf-8"); 
?>