jQuery获取浏览器类型和版本号的方法

$(document).ready(function(){
varbrow=$.browser;
varbInfo="";
if(brow.msie){bInfo="MicrosoftInterExplorer"+brow.version;}
if(brow.mozilla){bInfo="MozillaFirefox"+brow.version;}
if(brow.safari){bInfo="AppleSafari"+brow.version;}
if(brow.opera){bInfo="Opera"+brow.version;}
alert(bInfo);
});

var browser = navigator.appName;
var b_version = navigator.appVersion;
var version = b_version.split(";");
var trim_Version = version[1].replace(/[ ]/g, "");
if (browser == "Microsoft Inter Explorer" && trim_Version == "MSIE9.0") {
alert("IE9");
}