1 <script type="text/javascript"> 2 if (navigator.appName.indexOf("Microsoft Internet Explorer") != -1) { 3 alert("我是ie"); 4 if (navigator.userAgent.indexOf("MSIE 6.0") > 0)//IE 6.0 5 { 6 alert("我是ie6"); 7 } 8 else if (navigator.userAgent.indexOf("MSIE 7.0") > 0)//IE 7.0 9 { 10 alert("我是ie7"); 11 } 12 else if (navigator.userAgent.indexOf("MSIE 8.0") > 0)//IE 8.0 13 { 14 alert("我是ie8"); 15 } 16 } 17 else if (navigator.userAgent.indexOf("Netscape") != -1)//我是Netscape 18 { 19 alert("Netscape"); 20 } 21 else if (navigator.appName.indexOf("Opera") != -1) //我是opera 22 { 23 alert("Opera"); 24 } 25 else if (navigator.userAgent.indexOf("Firefox") != -1)//我是Firefox 26 { 27 alert("Firefox"); 28 } 29 else if (navigator.userAgent.indexOf("Chrome") != -1)//我是chrom 30 { 31 alert("Chrome"); 32 } 33 else if (navigator.userAgent.indexOf("Safari") != -1)//我是chrom 34 { 35 alert("Safari"); 36 } 37 </script>