browser = navigator.appName;
    ie = "Microsoft Internet Explorer";
    netscape = "Netscape";
    os = navigator.platform;
    mac = 'MacPPC'
    
if (browser == netscape && os == mac) {
        document.write('<link rel="stylesheet" type="text/css" href="style-nn-mac-digital-printing.css" title="master">');
	}
        
else if (browser == netscape && os != mac) {
        document.write('<link rel="stylesheet" type="text/css" href="style-nn-win-printing-company.css" title="master">');
	}

else if (browser == ie && os == mac) {
        document.write('<link rel="stylesheet" type="text/css" href="style-ie-mac-printing-services.css" title="master">');
	}
        
else if (browser == ie && os != mac) {
        document.write('<link rel="stylesheet" type="text/css" href="style-ie-win-commercial-printing.css" title="master">');
	}