jquery获取浏览器类型和版本号方法

<script type="text/javascript"> $(document).ready(function(){    var brow=$.browser;    var bInfo="";    if(brow.msie) {bInfo="Microsoft Internet Explorer "+brow.version;}    if(brow.mozilla) {bInfo="Mozilla Firefox "+brow.version;}    if(brow.safari) {bInfo="Apple Safari "+brow.version;}    if(brow.opera) {bInfo="Opera "+brow.version;}       alert(bInfo);    $("#browser").html(bInfo); }) </script>