javascript一个判断浏览器类型的函数（类）_javascript技巧

来源：倪彼情感

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！

<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> 
 
 /*--------------------------------------------------------------- 
 --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:如需引入外部Js需刷新才能执行]

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javascript一个判断浏览器类型的函数（类）_javascript技巧