// 基本的な変数宣言
var agent = navigator.userAgent ;
var appve = navigator.appVersion ;
var appna = navigator.appName ;
var userOs = null ;
var browser = null ;
var version = null ;
// OS判定
if ( agent.indexOf('Win') != -1 ){
userOs = "Win";
}
else if ( agent.indexOf('Mac') != -1 ){
userOs = "Mac" ;
}
else{
userOs = "other" ;
}
// ブラウザ判定
if ( appna == "Microsoft Internet Explorer" ){
browser = "MSIE";
version = agent.substring((agent.indexOf('MSIE') + 5),(agent.indexOf('MSIE') + 8)) ;
}
else if ( appna == "Netscape" ){
browser = "NN";
version = appve.substring( 0,3 ) ;
}
// OS ブラウザごとのスタイルシートを読み込む
if ( userOs == "Mac" && ( browser == "MSIE")) {
cssSrc = '<link REL="stylesheet" TYPE="text/css" href="css/mac_ie.css">' ;
}
if ( userOs == "Mac" && ( browser == "NN")) {
cssSrc = '<link REL="stylesheet" TYPE="text/css" href="css/mac_nn.css">' ;
}
if ( userOs == "Win" && ( browser == "MSIE")) {
cssSrc ='<link REL="stylesheet" TYPE="text/css" href="css/win_ie.css">' ;
}
if ( userOs == "Win" && ( browser == "NN")) {
cssSrc ='<link REL="stylesheet" TYPE="text/css" href="css/win_nn.css">' ;
}
document.write( cssSrc ) ;