JS判断浏览器（支持IE6－IE11、腾讯QQ、搜狗、猎豹、谷歌、苹果、火狐、遨游、欧朋、世界之窗）

<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>