檢測瀏覽器

JavaScript程式碼：

<script type="text/javascript">
var ua = navigator.userAgent.toString();
if(/MSIE/.test(ua)){var isIE=1;}
else if(/Firefox/.test(ua)){var isFirefox=1;}
else if(/Chrome/.test(ua)){var isChrome=1;}
else if(/Safari/.test(ua)){var isSafari=1;}
else if(/Opera/.test(ua)){var isOpera=1;}
document.write('ua='+ua+'<BR>');
document.write('isIE='+isIE+'<BR>');
document.write('isFirefox='+isFirefox+'<BR>');
document.write('isChrome='+isChrome+'<BR>');
document.write('isSafari='+isSafari+'<BR>');
document.write('isOpera='+isOpera+'<BR>');
document.write('isFirefox='+isFirefox+'<BR>');
</script>