javascript判断浏览器类型(咋个办呢 zgbn)

2009-08-20 17:36:00| 分类： JavaScript

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<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>

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