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

// CSS deverge for Cross Platform & Cross Browser
if (Agent.indexOf('Mac') != -1) {
		flag = "import_mac";
		document.open();
		document.write(cssTags + cssDir + flag + '.css" media="all" />');
		document.close();
}