// set Variable
	var Agent = navigator.userAgent;
	var cssDir = '/common/css/';
	var cssTags = '<link rel="stylesheet" type="text/css" href="';
	var flag = null;

// CSS deverge for Cross Platform & Cross Browser
if (Agent.indexOf('Win') != -1) {
	if (document.all) { // Win_IE
		flag = "winIE";
		document.write(cssTags + cssDir + flag + '.css" title="winIE.css">');
	} else { // Win_NS
		flag = "winNN";
		document.write(cssTags + cssDir + flag + '.css" title="winNN.css">');
	}
}

if (Agent.indexOf('Mac') != -1) {
	if (document.all) { // Mac_IE
		flag = "macIE";
		document.write(cssTags + cssDir + flag + '.css" title="macIE.css">');
	} else { // Mac_NS
		flag = "macNN";
		document.write(cssTags + cssDir + flag + '.css" title="macNN.css">');
	}
}