if (navigator.userAgent.indexOf("Win") >= 0) {
	if (navigator.appName.indexOf("Microsoft") >= 0) {

		if (navigator.userAgent.indexOf("MSIE 6", 0) >= 0) {
			version="style";
		} else if (navigator.userAgent.indexOf("MSIE 5", 0) >= 0) {
			version="style";
		} else if (navigator.userAgent.indexOf("MSIE 7", 0) >= 0) {
			version="style";
		}
	} else {
		if (navigator.appVersion.charAt(0) >= 5) {
			version="style";
		} else {
			version="style";
		}
	}
} else if (navigator.userAgent.indexOf("AppleWebKit", 0) >= 0) {
		version="style";
} else {
	if (navigator.appName.indexOf("Microsoft") >= 0) {
		version="style";
	} else {
		if (navigator.appVersion.charAt(0) >= 5) {
			version="mac";
		} else {
			version="mac";
		}
	}
}
document.write('<link rel="stylesheet" type="text/css" href="css/'+version+'.css">')