//　Macintosh           　->  MacOS
//　Windows95/98/NT/2000  ->　Windows
//　UNIX                  ->　UNIX
function getOSType()
{
    var uAgent  = navigator.userAgent;
    if (uAgent.indexOf("Mac") >= 0) return "MacOS";
    if (uAgent.indexOf("CE") >= 0 ) return "CE";
    if (uAgent.indexOf("Win") >= 0) return "Windows";
    if (uAgent.indexOf("X11") >= 0) return "UNIX";
    return "";
}
//　Netscape Navigator ->  Netscape
//　Internet Explorer  ->　Explorer
function getBrowserName()
{
    var aName  = navigator.appName;
    if (aName.indexOf("Netscape") >= 0)  return "Netscape";
    if (aName.indexOf("MICROSOFT") >= 0) return "Explorer";
    else return "Explorer"
    return "";
}
function getBrowserVersion()
{

	var browser = getBrowserName();
	var version = 0;
	var s = 0;
	var e = 0;
	var appVer  = navigator.appVersion;
	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;
}

// ■スタイルシートの読込み
function setStyleSheet()
{
	fName = "";
	//version = getBrowserVersion();
	//str = navigator.appName.toUpperCase();
	str = getBrowserName();
	strOs = getOSType();

	if( strOs.indexOf("MacOS") >= 0 )
	{
		// Netscape
		if (str.indexOf("Netscape") >= 0 ){
			 fName = "css/mac_nn.css";
		}
		// Internert Exproler
		else if (str.indexOf("Explorer") >= 0){
			fName = "css/mac_ie.css";
		}
		else{
			fName = "css/mac_ie.css";
		}
	}
	else if( strOs.indexOf("Windows") >= 0 )
	{
		// Netscape
		if (str.indexOf("Netscape") >= 0 ){
			 fName = "css/win_nn.css";
		}
		// Internert Exproler
		else if (str.indexOf("Explorer") >= 0){
			fName = "css/win_ie.css";
		}
		else{
			fName = "css/win_ie.css";
		}
	}
	// WindowsCE
	else if (strOs.indexOf("CE") >= 0 ){
		fName = "css/ce.css";
	}
	else{
		fName = "css/win_nn.css";
	}
	
	return fName;
}