使用navigator.userAgent来判断浏览器类型。
1、浏览器版本号函数：
Js代码??
- var?br=navigator.userAgent.toLowerCase();??
- var?browserVer=(br.match(/.+(?:rv|it|ra|ie)[\/:?]([\d.]+)/)?||?[0,?'0'])[1];??
?
2、js浏览器判断函数
Js代码??
- function?userBrowser(){??
- ????var?browserName=navigator.userAgent.toLowerCase();??
- ????if(/msie/i.test(browserName)?&&?!/opera/.test(browserName)){??
- ????????alert("IE");??
- ????????return?;??
- ????}else?if(/firefox/i.test(browserName)){??
- ????????alert("Firefox");??
- ????????return?;??
- ????}else?if(/chrome/i.test(browserName)?&&?/webkit/i.test(browserName)?&&?/mozilla/i.test(browserName)){??
- ????????alert("Chrome");??
- ????????return?;??
- ????}else?if(/opera/i.test(browserName)){??
- ????????alert("Opera");??
- ????????return?;??
- ????}else?if(/webkit/i.test(browserName)?&&!(/chrome/i.test(browserName)?&&?/webkit/i.test(browserName)?&&?/mozilla/i.test(browserName))){??
- ????????alert("Safari");??
- ????????return?;??
- ????}else{??
- ????????alert("unKnow");??
- ????}??
- }??