// Mac用CSS

if (navigator.appVersion.indexOf ("Mac") >= 0) {
	document.write ('<link rel="stylesheet" type="text/css" href="../css/renew_mac.css">');
}

// Win用CSS

else if (navigator.appVersion.indexOf ("Win") >= 0) {
	document.write ('<link rel="stylesheet" type="text/css" href="../css/renew_win.css">');
}