js识别浏览器

<SCRIPT language="JavaScript">

function myexplorer(){

var explorer = window.navigator.userAgent;

if (explorer.indexOf("QQBrowser")>=0 || explorer.indexOf("QQ")>=0){return myexplorer="腾讯QQ";

}else if(explorer.indexOf("Safari")>=0 && explorer.indexOf("MetaSr")>=0){return myexplorer="搜狗";

}else if (!!window.ActiveXObject || "ActiveXObject" in window){//IE

if (!window.XMLHttpRequest){return myexplorer="IE6";

}else if (window.XMLHttpRequest && !document.documentMode){return myexplorer="IE7";

}else if (!-[1,] && document.documentMode && !("msDoNotTrack" in window.navigator)){return myexplorer="IE8";

}else{//IE9 10 11

var hasStrictMode=(function(){"use strict";return this===undefined;}());

if (hasStrictMode){

if (!!window.attachEvent){return myexplorer="IE10";}else{return myexplorer="IE11";}

}else{

return myexplorer="IE9";

}

}

}else{//非IE

if (explorer.indexOf("LBBROWSER") >= 0){return myexplorer="猎豹";

}else if(explorer.indexOf("Firefox")>=0){return myexplorer="火狐";

}else if(explorer.indexOf("Maxthon")>=0){return myexplorer="遨游";

}else if(explorer.indexOf("Chrome")>=0){return myexplorer="谷歌（或360伪装）";

}else if(explorer.indexOf("Opera")>=0){return myexplorer="欧朋";

}else if (explorer.indexOf("TheWorld") >= 0){return myexplorer="世界之窗";

}else if(explorer.indexOf("Safari")>=0){return myexplorer="苹果";

}else{return myexplorer="其他";

}

}

}</script>

<BR>

<SCRIPT>document.write("客户端浏览器是："+myexplorer());</script>

注：以上提到的浏览器，IE6-IE11、腾讯QQ、搜狗、猎豹、谷歌、苹果均测试通过；360兼容伪装IE、极速伪装谷歌未找到准确判断方法；火狐、遨游、欧朋、世界之窗未进行测试。