IE浏览器的判断

function compatibleIE8(){
var browser = navigator.appName;
var
b_version = navigator.appVersion;
if(browser == "Microsoft Internet
Explorer"){
var version = b_version.split(";")[1].replace(/[
]/g,"");
if(version == "MSIE8.0"){
　　.........
}
}
}

2.

1. function isIE() { //ie?


2. if (!!window.ActiveXObject || "ActiveXObject" in window)


3. return true;


4. else


5. return false;


6. }