//Windows
if (navigator.userAgent.indexOf("Win") >= 0) {
	if (navigator.appName.indexOf("Microsoft") >= 0) {
		version="win-ie";
	} else {
		if (navigator.appVersion.charAt(0) >= 5) {
			version="win-nn6";
		} else {
			version="win-nn";
		}
	}

//Mac X
} else if (navigator.userAgent.indexOf("Safari") >= 0) {
		version="mac-safari";

//Mac 9 & other
} else {

	if (navigator.appName.indexOf("Microsoft") >= 0) {
		version="mac-ie";
	} else {
		if (navigator.appVersion.charAt(0) >= 5) {
			version="mac-nn6";
		} else {
			version="mac-nn";
		}
	}
}
document.write('<link rel="stylesheet" type="text/css" href="/css/'+version+'.css">')