//
//　ブラウザバージョン取得
//
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));
	}
	if (browser == "Dreampassport")
	{
		s = appVer.indexOf("/",0)+1;
		e = appVer.indexOf(")",s);
		version = eval(appVer.substring(s,e));
	}
	return version;
}
//
//　ブラウザチェック
//　　　　種　　　類　　　：　　戻　り　値
//　Netscape Navigator ->  Netscape
//　Internet Explorer  ->　Explorer
//　iCab               ->　iCab
//　Dreampassport      ->　Dreampassport
//　上記以外の場合は何も値を返しません
//
function getBrowserName()
{
    var aName  = navigator.appName.toUpperCase();
    var uName  = navigator.userAgent.toUpperCase();
    if (uName.indexOf("DREAMPASSPORT") >= 0)  return "Dreampassport";
    if (aName.indexOf("NETSCAPE") >= 0)       return "Netscape";
    if (aName.indexOf("MICROSOFT") >= 0)      return "Explorer";
    if (aName.indexOf("ICA") >= 0)            return "iCab";
    return "";
}