判断safari_判断IE_判断firefox_判断Opera—JS判断浏览器

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js判断浏览器类型：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><title>判断浏览器</title><script type="text/javascript">//----------------------------- 判断浏览器 -------------------------function myBrowser(){var userAgent = navigator.userAgent; //取得浏览器的userAgent字符串var isOpera = userAgent.indexOf("Opera") > -1; //判断是否Operavar isMaxthon = userAgent.indexOf("Maxthon") > -1 ; //判断是否傲游3.0var isIE = userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1 && !isOpera ; //判断是否IE var isFF = userAgent.indexOf("Firefox") > -1 ; //判断是否Firefoxvar isSafari = userAgent.indexOf("Safari") > -1 && userAgent.indexOf("Chrome") < 1 ; //判断是否Safarivar isChrome = userAgent.indexOf("Chrome") > -1 ; //判断是否Chromeif(isIE){    var IE5 = IE55 = IE6 = IE7 = IE8 = false;   var reIE = new RegExp("MSIE (+);");   reIE.test(userAgent);   var fIEVersion = parseFloat(RegExp["$1"]);   IE55 = fIEVersion == 5.5 ;   IE6 = fIEVersion == 6.0 ;   IE7 = fIEVersion == 7.0 ;   IE8 = fIEVersion == 8.0 ;   if(IE55){ return "IE55"; }   if(IE6){ return "IE6"; }   if(IE7){ return "IE7"; }   if(IE8){ return "IE8"; }}if(isFF){ return "FF"; }if(isOpera){ return "Opera"; }if(isMaxthon){ return "Maxthon"; }if(isSafari){ return "Safari"; }if(isChrome){ return "Chrome"; }} //myBrowser() endwindow.onload=function(){document.getElementById("ua").innerHTML=navigator.userAgent;if(myBrowser()=="FF"){alert("我是 Firefox");}if(myBrowser()=="Maxthon"){alert("我是傲游(webkit核心)");}if(myBrowser()=="Opera"){alert("我是 Opera");}if(myBrowser()=="Safari"){alert("我是 Safari");}if(myBrowser()=="Chrome"){alert("我是 Chrome");}if(myBrowser().indexOf("IE")>-1){alert("我是 IE");} if(myBrowser()=="IE55"){alert("我是 IE5.5");}if(myBrowser()=="IE6"){alert("我是 IE6");}if(myBrowser()=="IE7"){alert("我是 IE7");}if(myBrowser()=="IE8"){alert("我是 IE8");}}</script></head><body><div id="ua"></div></body></html>

Jquery判断浏览器版本：

。webkit (as of jQuery 1.4)
。safari (deprecated)
。opera
。msie
。mozilla

将以上几种类型逐个讲来——

Example: Returns true if the current useragent is some version of Microsoft's Internet Explorer.

$.browser.msie;

Example: Alerts "this is WebKit!" only for WebKit browsers

if ($.browser.webkit) { alert( "this is webkit!" ); }

Example: Alerts "this is Safari" only for Safari browsers

if ($.browser.safari) { alert( "this is safari" ); }

Example: Alerts "Do stuff for Firefox 3" only for Firefox 3 browsers.

var ua = $.browser; if ( ua.mozilla && ua.version.slice(0,3) == "1.9" ) { alert( "Do stuff for firefox 3" ); }

Example: Set a CSS property that's specific to a particular browser.

if ( $.browser.msie ) { $("#div ul li").css( "display","inline" ); } else { $("#div ul li").css( "display","inline-table" ); }