javascript判断浏览器类型(咋个办呢 zgbn)

javascript判断浏览器类型(咋个办呢 zgbn)

<script type="text/javascript">
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");// 判读是否为ie浏览器
var is_NN = (Browser_Name == "Netscape");// 判断是否为netscape浏览器
var is_op = (Browser_Name == "Opera");// 判断是否为Opera浏览器
if (is_NN) {
// upper 5.0 need to be process,lower 5.0 return directly
if (Browser_Version >= 5.0) {
if (Browser_Agent.indexOf("Netscape") != -1) {
var Split_Sign = Browser_Agent.lastIndexOf("/");
var Version = Browser_Agent.lastIndexOf(" ");
var Bname = Browser_Agent.substring(0, Split_Sign);
var Split_sign2 = Bname.lastIndexOf(" ");
Actual_Version = Browser_Agent.substring(Split_Sign + 1,
Browser_Agent.length);
Actual_Name = Bname.substring(Split_sign2 + 1, Bname.length);

}
if (Browser_Agent.indexOf("Firefox") != -1) {
var Split_Sign = Browser_Agent.lastIndexOf("/");
var Version = Browser_Agent.lastIndexOf(" ");
Actual_Version = Browser_Agent.substring(Split_Sign + 1,
Browser_Agent.length);
Actual_Name = Browser_Agent.substring(Version + 1, Split_Sign);

}
if (Browser_Agent.indexOf("Safari") != -1) {
if (Browser_Agent.indexOf("Chrome") != -1) {
var Split_Sign = Browser_Agent.lastIndexOf(" ");
var Version = Browser_Agent.substring(0, Split_Sign);
;
var Split_Sign2 = Version.lastIndexOf("/");
var Bname = Version.lastIndexOf(" ");
Actual_Version = Version.substring(Split_Sign2 + 1,
Version.length);
Actual_Name = Version.substring(Bname + 1, Split_Sign2);
} else {
var Split_Sign = Browser_Agent.lastIndexOf("/");
var Version = Browser_Agent.substring(0, Split_Sign);
;
var Split_Sign2 = Version.lastIndexOf("/");
var Bname = Browser_Agent.lastIndexOf(" ");
Actual_Version = Browser_Agent.substring(Split_Sign2 + 1,
Bname);
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
|| Browser_Agent.indexOf("MAXTHON") != -1) {
var mv = Browser_Agent.lastIndexOf(" ");
var mv1 = Browser_Agent.substring(mv, Browser_Agent.length - 1);
mv1 = "遨游版本:" + mv1;
Actual_Name += "(Maxthon)";
Actual_Version += mv1;
}

} else if (Browser_Agent.indexOf("Opera") != -1) {
Actual_Name = "Opera";
var tempstart = Browser_Agent.indexOf("Opera");
var tempend = Browser_Agent.length;
Actual_Version = Browser_Version;
} 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.userAgent);
document.write("<br>");
document.write("你使用的浏览器是:" + navigator.Actual_Name + ",版本号:"
+ navigator.Actual_Version);
</script>