os= navigator.platform;
mac= "MacPPC";

if (os == mac){
	document.write('<link rel="stylesheet" type="text/css" href="http://igo.t-factory.jp/diary/css/set_mac.css">');
}
else {
	document.write('<link rel="stylesheet" type="text/css" href="http://igo.t-factory.jp/diary/css/set_win.css">');
}