if (navigator.userAgent.match("Opera")) {
document.write('<link rel="stylesheet" type="text/css" href="opera.css">');
}
+ if (navigator.userAgent.match("Gecko") && !navigator.userAgent.match("KHTML")) {
+ document.write('<link rel="stylesheet" type="text/css" href="gecko.css">');
+ }
</script>
</head>