JavaScript判断浏览器类型

1 <script type=”text/javascript”>

2 <!–

3 var Browser = {

4 ’isIE’ : (navigator.userAgent.indexOf(‘MSIE’) >= 0) && (navigator.userAgent.indexOf(‘Opera’) < 0),

5 ’isFirefox’ : navigator.userAgent.indexOf(‘Firefox’) >= 0,

6 ’isOpera’ : navigator.userAgent.indexOf(‘Opera’) >= 0

7 };

8 //alert(navigator.userAgent);

9 alert(Browser["isIE"]);//isIE

10 alert(Browser["isFirefox"]);//isFirefox

11 alert(Browser["isOpera"]);//isOpera

12 –>

13 </script>