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="http://espn.go.com/insertfiles/css/story_nn.css" title="master">');
    }
else if (browser == ie && os != mac) {
    document.write('<link rel="stylesheet" type="text/css" href="http://espn.go.com/insertfiles/css/story_ie.css" title="master">');
    }
else if (browser == netscape && os == mac) {
    document.write('<link rel="stylesheet" type="text/css" href="http://espn.go.com/insertfiles/css/story_ie.css" title="master">');
    }
else if (browser == ie && os == mac) {
    document.write('<link rel="stylesheet" type="text/css" href="http://espn.go.com/insertfiles/css/story_ie.css" title="master">');
    }