if (navigator.userAgent.indexOf("Win") >= 0) {
	var win = 1;
} else if (navigator.userAgent.indexOf("Mac")!=-1) {
	var mac = 1;
} else {
	var oth = 1;
}

if (navigator.appName.indexOf("Microsoft") >= 0) {
	var ie = 1;
} else if (navigator.appName=="Netscape") {
	var nn = 1;
} else if (navigator.userAgent.indexOf("Safari") >= 0) {
	var sa = 1;
} else {
	var ot = 1;
}

// win-ie
if (win && ie) { var version = "win-ie" }

// win-nn4
if (win && nn && navigator.appVersion.charAt(0) < 5) { var version = "win-nn4" }

// win-nn6
if (win && nn && navigator.appVersion.charAt(0) >= 5) {
	if (navigator.userAgent.indexOf("Netscape6")!=-1) { var version = "win-nn6" }
// win-nn7
	else { var version = "win-nn7" }
}

// mac-ie
if (mac && ie) { var version = "mac-ie" }

// mac-nn4
if (mac && nn && navigator.appVersion.charAt(0) < 5) { var version = "mac-nn4" }

// mac-nn6
if (mac && nn && navigator.appVersion.charAt(0) >= 5) {
	if (navigator.userAgent.indexOf("Netscape6")!=-1) { var version = "mac-nn6" }
// mac-nn7
	else { var version = "mac-nn7" }
}

// mac-sa
if (mac && sa) { var version = "mac-sa" }

// other
if (oth || ot) { var version = "win-ie" }

document.write('<link rel="stylesheet" type="text/css" href="../css/'+version+'.css">')