Splash Page Cookie function

function cookie_jumper($cookie_name, $redirect = '', $exp = 86400){
	$mycookie = $_COOKIE[$cookie_name]!='' ? $_COOKIE[$cookie_name] : FALSE;
	$exp = time() + $exp;
	if($mycookie){
		header('Location:'.get_site_url().$redirect);
	} else {
		setcookie($cookie_name,TRUE,$exp);
	}
}