JS判断IE浏览器版本

if(navigator.appName == "Microsoft Internet Explorer" && navigator.appVersion.match(/7./i)=="7."){

alert("IE 7.0");

}

else if(navigator.appName == "Microsoft Internet Explorer" && navigator.appVersion.match(/8./i)=="8."){

alert("IE 8.0");

}

else if(navigator.appName == "Microsoft Internet Explorer" && navigator.appVersion.match(/9./i)=="9."){

alert("IE 9.0");

}

else if(navigator.appName == "Microsoft Internet Explorer"){

alert("IE 6.0");

}