var agent = navigator.userAgent;
var appver = navigator.appVersion;
var appname = navigator.appName;

var os = null;
var browser = null;
var ver = null;

//●OS情報の取得
if (agent.indexOf('Mac') != -1) {
os = "mac";

} else if (agent.indexOf('Win') != -1) {
os  = "win";

} else {
os  = "other";
}

//●アプリケーション情報の取得
if(agent.indexOf('MSIE') == -1) {
	if (appname == "Netscape"){
	browser = "NN";
	}
	ver = appver.charAt(0);

} else {
	browser = "MSIE";
	ver = agent.charAt(agent.indexOf('MSIE') + 5);

}

//●スタイルシートの振分け設定
if (os == "mac"){
	if(browser == "NN" && ver <= "4"){
		document.write('<LINK rel="stylesheet" type="text/css" href="../../css/win.css">');
		document.close();
	}else{
		document.write('<LINK rel="stylesheet" type="text/css" href="../../css/mac.css">');
		document.close();
	}

}

if (os == "win"){
	document.write('<LINK rel="stylesheet" type="text/css" href="../../css/win.css">');
	document.close();
}

if (os == "other"){
	document.write('<LINK rel="stylesheet" type="text/css" href="../../css/win.css">');
	document.close();
}