if(navigator.platform.indexOf("Win") != -1){
	if(navigator.appName=="Microsoft Internet Explorer"){
		document.write('<LINK rel="stylesheet" type="text/css" href="http://www.kasumigaseki.co.jp/style-iewin.css">');
	} else if(navigator.appName=="Netscape"){
		document.write('<LINK rel="stylesheet" type="text/css" href="http://www.kasumigaseki.co.jp/style-nnwin.css">');
	}
} else if (navigator.platform.indexOf("Mac") != -1){
	if(navigator.appName=="Microsoft Internet Explorer"){
		document.write('<LINK rel="stylesheet" type="text/css" href="http://www.kasumigaseki.co.jp/style.css">');
	} else if(navigator.appName=="Netscape"){
		document.write('<LINK rel="stylesheet" type="text/css" href="http://www.kasumigaseki.co.jp/style.css">');
	}
}