// -------------------------------------------------------------------------
// --- ブラウザ・チェック ---
// -------------------------------------------------------------------------


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

var nav = navigator.appName ;
var plf = null ;
var ver = null ;


// OS の判定
if ( agent.indexOf('Win') != -1 )
{
	plf = "Win" ;
}
else if ( agent.indexOf('Mac') != -1 )
{
	plf = "Mac" ;
}
else
{
	plf = "other" ;
}


// browser の判定
if ( nav == "Microsoft Internet Explorer" )
{
	ver = agent.substring((agent.indexOf('MSIE') + 5), (agent.indexOf('MSIE') + 8)) ;
	nav = "MSIE" ;
}
else if ( nav == "Netscape" )
{
	ver = appver.substring(0,4) ;
	nav = "NN" ;
}
else
{
	ver = null ;
	nav = "other" ;
}