/* CSS Browser Selector v0.4.0 (Nov 02, 2010) Rafael Lima (http://rafael.adm.br) http://rafael.adm.br/css_browser_selector License: http://creativecommons.org/licenses/by/2.5/ Contributors: http://rafael.adm.br/css_browser_selector#contributors v0.5.0 2011-08-24 andrew relkin modified, now detects: any version of Firefox more versions of Windows (Win8, Win7, Vista, XP, Win2k) more versions of IE under unique conditions if "no-js" in HTML class: removes and replaces with "js" () identifies browsers: Firefox; IE; Opera; Safari; Chrome, Konqueror, Iron browser versions: (most importantly: ie6, ie7, ie8, ie9) rendering engines: Webkit; Mozilla; Gecko platforms/OSes: Mac; Win: Win7, Vista, XP, Win2k; FreeBSD; Linux/x11 devices: Ipod; Ipad; Iphone; WebTV; Blackberry; Android; J2me; mobile(generic) enabled technology: JS */ function css_browser_selector(u) { var ua=u.toLowerCase(), is=function(t) { return ua.indexOf(t.toLowerCase())>-1}, g='gecko', w='webkit', s='safari', o='opera', m='mobile', f='firefox', h=document.documentElement, b= [ // browser /* hat tip: https://github.com/kevingessner/css_browser_selector/ */ (!(/opera|webtv/i.test(ua))&&/msie\s(\d)/.test(ua))?('ie ie'+(/trident\/4\.0/.test(ua) ? '8' : RegExp.$1)) :is('firefox/')?g+" "+f+(/firefox\/((\d+)(\.(\d+))(\.\d+)*)/.test(ua)?' '+f+RegExp.$2 + ' '+f+RegExp.$2+"_"+RegExp.$4:'') :is('gecko/')?g :is('opera')?o+(/version\/(\d+)/.test(ua)?' '+o+RegExp.$1:(/opera(\s|\/)(\d+)/.test(ua)?' '+o+RegExp.$2:'')) :is('konqueror')?'konqueror' :is('blackberry')?m+' blackberry' :is('android')?m+' android' :is('chrome')?w+' chrome' :is('iron')?w+' iron' :is('applewebkit/')?w+' '+s+(/version\/(\d+)/.test(ua)?' '+s+RegExp.$1:'') :is('mozilla/')?g :'' // os/platform ,is('j2me')?m+' j2me' :is('iphone')?m+' iphone' :is('ipod')?m+' ipod' :is('ipad')?m+' ipad' :is('mac')?'mac' :is('darwin')?'mac' :is('webtv')?'webtv' /* hat tip: https://github.com/saar/css_browser_selector */ :is('win')?'win'+ (is('windows nt 6.2')?' win8' :is('windows nt 6.1')?' win7' :is('windows nt 6.0')?' vista' :is('windows nt 5.2') || is('windows nt 5.1') ? ' win_xp' :is('windows nt 5.0')?' win_2k' :is('windows nt 4.0') || is('WinNT4.0') ?' win_nt' : '' ) :is('freebsd')?'freebsd' :(is('x11')||is('linux'))?'linux' :'' // javascript ,'js' ]; var c = b.join(' '); /* hat tip, paul irish: http://paulirish.com/2009/avoiding-the-fouc-v3/ */ h.className = ( h.className.replace(/no-?js/g,"") + " " + c ).replace(/^ /, ""); return c; } css_browser_selector(navigator.userAgent);