//Opera 8, 8.5およびFirefox 1.0に対応する場合にはブラウザ判別を処理するenv.jsを改良します。
//Safariの場合はuserAgentの文字列からバージョンを探し出し400以上ならver 2、それ以下ならばver 1として処理します。

//　Macintosh           　->  MacOS
//　Windows95/98/NT/2000/XP  ->　Windows
//　UNIX                  ->　UNIX
function getOSType()
{
    var uAgent  = navigator.userAgent.toUpperCase();
    if (uAgent.indexOf("MAC") >= 0) return "MacOS";
    if (uAgent.indexOf("WIN") >= 0) return "Windows";
    if (uAgent.indexOf("X11") >= 0) return "UNIX";
    return "";
}
//　Firefox ->  Firefox
//　Netscape Navigator ->  Netscape
//　Internet Explorer  ->　Explorer
//　Safari  ->　Safari
//　Opera  ->　Opera
function getBrowserName()
{
    var aName  = navigator.appName.toUpperCase();
    var uName = navigator.userAgent.toUpperCase();
    if (uName.indexOf("SAFARI") >= 0)  return "Safari";
    if (uName.indexOf("OPERA") >= 0)  return "Opera";
    if (uName.indexOf("FIREFOX") >= 0)  return "Firefox";
    if (aName.indexOf("NETSCAPE") >= 0)  return "Netscape";
    if (aName.indexOf("MICROSOFT") >= 0) return "Explorer";
    return "";
}
function getBrowserVersion()
{
	var browser = getBrowserName();
	var version = 0;
	var s = 0;
	var e = 0;
	var appVer  = navigator.appVersion;
	var uName  = navigator.userAgent.toUpperCase();
	
	
	
/*	
	
if (browser == "Safari")
	{
	s = uName.indexOf("SAFARI/",0);
	version = (uName.substring(s+7,s+99));
if (version < 400) version = 1;
	if ((version >= 400) < (version <= 499)) version = 2;
	if (version >= 500) version = 3;
}
*/	
	

	
	
	
	
	
	if (browser == "Opera")
	{
		s = uName.indexOf("OPERA",0) + 6;
		e = uName.indexOf(" ",s);
		version = parseFloat(uName.substring(s,e));
	}
	if (browser == "Firefox")
	{
		s = uName.indexOf("FIREFOX/",0);
		version = parseFloat(uName.substring(s+8,s+8+3));
	}
	if (browser == "Netscape")
	{
		s = appVer.indexOf(" ",0);
		version = eval(appVer.substring(0,s));
		if (version >= 5) version++;
	}
	if (browser == "Explorer")
	{
		appVer  = navigator.userAgent;
		s = appVer.indexOf("MSIE ",0) + 5;
		e = appVer.indexOf(";",s);
		version = eval(appVer.substring(s,e));
	}
	return version;
}

//ブラウザ／OS／バージョン別にスタイルシートを読み込む（Safari2, Opera 8/8.5, Firefox 1対応版）

os      = getOSType();
browser = getBrowserName();
version = getBrowserVersion();
if (os == "MacOS")   dirName = "css/mac/";
if (os == "Windows") dirName = "css/win/";
if (os == "UNIX")    dirName = "css/unix/";
if (browser == "Firefox") dirName += "ff";
if (browser == "Netscape") dirName += "nn";
if (browser == "Explorer") dirName += "ie";
if (browser == "Safari") dirName += "saf.css";//safariはsaf.cssに固定した
if (browser == "Opera") dirName += "op";
if ((version >= 1) && (version < 2))   dirName += "1.css";
if ((version >= 2) && (version < 3))   dirName += "2.css";
if ((version >= 3) && (version < 4))   dirName += "3.css";
if ((version >= 4) && (version < 5))   dirName += "4.css";
if ((version >= 5) && (version < 5.5)) dirName += "5.css";
if ((version >= 5.5) && (version < 6)) dirName += "5.5.css";
if ((version >= 6) && (version < 7))   dirName += "6.css";
if ((version >= 7) && (version < 8))   dirName += "7.css";
if ((version >= 8) && (version < 8.5))   dirName += "8.css";
if ((version >= 8.5) && (version < 9))   dirName += "8.5.css";
//if (version = '')   dirName += ".css";
document.write("<link rel='stylesheet' href='"+dirName+"' type='text/css'>");
//alert(dirName);