Hi,
HTTP requires an absolute URL as argument to Location: including the scheme, hostname and absolute path, but some clients accept relative URLs. You can usually use $_SERVER['HTTP_HOST'], $_SERVER['PHP_SELF'] and dirname() to make an absolute URI from a relative one yourself:
header("Location: [url]http://[/url]".$SERVER['HTTP_HOST']
.dirname($SERVER['PHP_SELF'])
."/".$relative_url);
for more check out at..
http://www.php.net/manual/en/function.header.php