// get decent browser description
	var appName = navigator.appName;
	var appVersion = navigator.appVersion;
	var versionless = !appVersion;
	if (versionless) appVersion = "2.0 (compatible; MSIE 3.02; Win32)";
	var MSIEpos = appVersion.indexOf("MSIE "); // find IE's real version #
	var versionNum = MSIEpos >= 0 ? parseFloat(appVersion.substring(MSIEpos + 5))
		: parseFloat(appVersion);
	if (isNaN(versionNum)) versionNum = 3;
	var versionInt = parseInt(versionNum);
	var isNetscape = (appName.indexOf("Netscape") != -1);
	var isNetscape3 = (isNetscape && versionInt == 3);
	var isExplorer = (appName.indexOf("Internet") != -1) || (appName == "");
	var isExplorer3 = (isExplorer && versionInt == 3);
	var isWin = (appVersion.indexOf("Win") != -1);
	var isWin95 = (appVersion.indexOf("Win95") != -1)
		  || (appVersion.indexOf("Windows 95") != -1);
	var isWin98 = (appVersion.indexOf("Win98") != -1)
		  || (appVersion.indexOf("Windows 98") != -1);
	var isWinNT = (appVersion.indexOf("WinNT") != -1)
		  || (appVersion.indexOf("Windows NT") != -1);
	var isMac = (appVersion.indexOf("Macintosh") != -1);
	var isUnix = (appVersion.indexOf("X11") != -1);
	var isOtherOS = !(isWin || isMac || isUnix);

	var browserName = isExplorer ? 'Internet Explorer'
					: isNetscape ? 'Netscape'
					: appName;

	var platform = isWin95 ? 'Win'
				 : isWin98 ? 'Win'
				 : isWinNT ? 'Win'
				 : isMac ? 'Mac'
				 : isUnix ? 'Unix'
				 : 'Other';

	var browser = browserName + platform;

            if (browser == 'NetscapeWin') { 
            document.write('	<link rel="stylesheet" href="/wgbh/evolution/css/homeNS.css" type="text/css">');
            }