判断访问站点的浏览器类型

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 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";

    }

    navigator.Actual_Name = Actual_Name;

    navigator.Actual_Version = Actual_Version;
this.Name = Actual_Name;

    this.Version = Actual_Version;

}
function jadgeBrowser()

{

   if(navigator.userAgent.indexOf("MSIE")>0) {

        return "MSIE";

   }

   if(isFirefox=navigator.userAgent.indexOf("Chrome")>0){

       return "Chrome";

   }

   if(isFirefox=navigator.userAgent.indexOf("Firefox")>0){

        return "Firefox";

   }

   if(isSafari=navigator.userAgent.indexOf("Safari")>0) {

        return "Safari";

   }

   if(isCamino=navigator.userAgent.indexOf("Opera")>0){

        return "Opera";

   }

   if(isMozilla=navigator.userAgent.indexOf("Sogou/")>0){

        return "Sogou";

   }

   return "Unknown Browser";
}  

判断访问站点的浏览器类型