JavaScript判断浏览器及其版本信息

通过window.navigator来判断：

 function getBrowserInfo(){
     var Info = {};
     var str = window.navigator.userAgent.toLowerCase();
     var bReg =/(msie|firefox|chrome|opera|version).*?([\d.]+)/;
     var infoArr = str.match(bReg);
     Info.browser = infoArr[1].replace(/version/, "safari");
     Info.ver = infoArr[2];
     return Info;
 }
 var BomInfo = getBrowserInfo();

 document.write(BomInfo.browser);
13 document.write("</br>");
 document.write(BomInfo.ver);