// cssの読み込み
function cssLoad(){
	winIE='css/win_ie.css';
	winIE6='css/win_ie67.css';
	winNN='css/win_ns.css';
	macIE='css/mac.css';
	macNN='css/mac.css';
	macSF='css/mac.css';
	var cssFile='';

	strApp=navigator.appName;
	strApv=navigator.appVersion;
	strAgnt=navigator.userAgent;

	if (strAgnt.indexOf("Win") != -1) {
		if (strApp.indexOf('Microsoft') != -1) {
			if (strApv.indexOf('6.0') != -1) {
				cssFile = winIE6;
			} else if (strApv.indexOf('7.0') != -1) {
				cssFile = winIE6;
			} else {
				cssFile = winIE;
			}
		} else if (strApp.indexOf('Netscape') != -1) {
			cssFile = winNN;
		} else {
			cssFile = winIE;
		}
	} else if (strAgnt.indexOf("Mac") != -1) {
		if (strApp.indexOf('Microsoft') != -1) {
			cssFile = macIE;
		} else if (strAgnt.indexOf('Safari') != -1) {
			cssFile = macSF;
		} else if (strApp.indexOf('Netscape') != -1) {
			cssFile = macNN;
		} else {
			cssFile = macIE;
		}
	} else {
		cssFile = winIE;
	}

	if (cssFile != '') {
		document.write('<LINK rel="stylesheet" href="' + cssFile + '" type="text/css" media="screen,print">');
	}
}
cssLoad();