if (document.all || document.layers || document.getElementById) {
	if (navigator.appVersion.indexOf("Mac",0) != -1) {
		if (navigator.appVersion.indexOf("5.0",0) == -1) document.write('<link rel="stylesheet" type="text/css" href="css/mac.css" title="fontproperty">');
		if (navigator.appVersion.indexOf("5.0",0) != -1) document.write('<link rel="stylesheet" type="text/css" href="css/win.css" title="fontproperty">');
	}
	else document.write('<link rel="stylesheet" type="text/css" href="css/win.css" title="fontproperty">');
}