////////////////////////////////////////////////////////////
//
//ファイル名:   browserjudge.js
//機能		:	ブラウザ判定
//依存		:	-
//バージョン:　 2.0.0.1
//更新日時	:　 2006.08.01
//更新者	:	kawame
//
////////////////////////////////////////////////////////////

function checkBrowser()
{
 	var os      = getOSType();
	var browser = getBrowserName();
	var version = getBrowserVersion();
	var flg = false;
	
	if(os == "Windows")
	{
		if(browser == "Netscape")
		{
			if(version>7.0) flg = true;	
		}
		if(browser == "Opera")
		{
			if(version>=8.5) flg = true;	
		}
		if(browser == "Explorer")
		{
			if(version>=5.5) flg = true;	
		}
		if(browser == "Firefox")
		{
			if(version>=1.0) flg = true;	
		}
	}
	else if("MacOS")
	{
		if (browser == "Firefox")	flg = true;
		if (browser == "Safari")	flg = true;/*safari*/
	}
	else if("UNIX")
	{
	}
	
	if(!flg)
	{
		location.href = "noSupport.aspx";
	}
}

//　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 = 2;
	}
	if (browser == "Opera")
	{
		s = uName.indexOf("OPERA",0) + 6;
		e = uName.indexOf(" ",s);
		version = parseFloat(uName.substring(s,e));	
		
		if(isNaN(version))
		{
			s = uName.lastIndexOf(" ",uName.length+1);
			e = uName.length;
			version = parseFloat(uName.substr(s,e));	
			//alert (version);
		}
			
	}
	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++;
		s = uName.lastIndexOf("/",uName.length);
		version = parseFloat(uName.substr(s+1,3));//eval(uName.substring(s+1,3));
		//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;
}