javascript一个判断浏览器类型的函数（类）

初学Javascript时写的一个判断浏览器类型的函数（类），不是很完善，不过毕竟第一次写东东，纪念一下！

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html>   <head>   <meta http-equiv="content-type" content="text/html; charset=gb2312">   <meta name="generator" content="PSPad editor, www.pspad.com">   <meta name="Author" content="Yemoo">   <title>Get Exact Browser Type</title>   </head>   <body> <script type="text/javascript">     /*---------------------------------------------------------------     --this function can return the actual browser name and version.--     --USESAGE:There are Two Methods(See the end of this function)  --     --Create By Yemoo.  DateTime:2006-2-3 21:53:37                 --     ---------------------------------------------------------------*/     function browserinfo(){         var Browser_Name=navigator.appName;         var Browser_Version=parseFloat(navigator.appVersion);         var Browser_Agent=navigator.userAgent;                  var Actual_Version,Actual_Name;                  var is_IE=(Browser_Name=="Microsoft Internet Explorer");         var is_NN=(Browser_Name=="Netscape");                  if(is_NN){             //upper 5.0 need to be process,lower 5.0 return directly             if(Browser_Version>=5.0){                 var Split_Sign=Browser_Agent.lastIndexOf("/");                 var Version=Browser_Agent.indexOf(" ",Split_Sign);                 var Bname=Browser_Agent.lastIndexOf(" ",Split_Sign);                 Actual_Version=Browser_Agent.substring(Split_Sign+1,Version);                 Actual_Name=Browser_Agent.substring(Bname+1,Split_Sign);             }             else{                 Actual_Version=Browser_Version;                 Actual_Name=Browser_Name;             }         }         else if(is_IE){             var Version_Start=Browser_Agent.indexOf("MSIE");             var Version_End=Browser_Agent.indexOf(";",Version_Start);             Actual_Version=Browser_Agent.substring(Version_Start+5,Version_End)             Actual_Name=Browser_Name;                          if(Browser_Agent.indexOf("Maxthon")!=-1){                 Actual_Name+="(Maxthon)";             }             else if(Browser_Agent.indexOf("Opera")!=-1){                 Actual_Name="Opera";                 var tempstart=Browser_Agent.indexOf("Opera");                 var tempend=Browser_Agent.length;                 Actual_Version=Browser_Agent.substring(tempstart+6,tempend)             }         }         else{             Actual_Name="Unknown Navigator"             Actual_Version="Unknown Version"         }         /*------------------------------------------------------------------------------         --Your Can Create new properties of navigator(Acutal_Name and Actual_Version) --         --Userage:                                                                    --         --1,Call This Function.                                                       --         --2,use the property Like This:navigator.Actual_Name/navigator.Actual_Version;--         ------------------------------------------------------------------------------*/         navigator.Actual_Name=Actual_Name;         navigator.Actual_Version=Actual_Version;                  /*---------------------------------------------------------------------------         --Or Made this a Class.                                                    --         --Userage:                                                                 --         --1,Create a instance of this object like this:var browser=new browserinfo;--         --2,user this instance:browser.Version/browser.Name;                       --         ---------------------------------------------------------------------------*/         this.Name=Actual_Name;         this.Version=Actual_Version;     }     browserinfo();          document.write("你使用的浏览器是:"+navigator.Actual_Name+",版本号:"+navigator.Actual_Version); </script>   </body> </html>

[Ctrl+A 全选注:引入外部Js需再刷新一下页面才能执行]

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javascript一个判断浏览器类型的函数（类）

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