// Determine browser and OS for style sheets
var sBrowser = navigator.appName;
var sVersion = navigator.appVersion;
var sBrowAbbr = (sBrowser=="Microsoft Internet Explorer") ? "ie" : "nn";
var sOSAbbr = (sVersion.indexOf("Macintosh")>-1) ? "mac" : "win";
document.writeln('<link rel="stylesheet" type="text/css" media="screen" href="/lib/css/' + 
	sOSAbbr + '_' + sBrowAbbr + '.css">');