function css_browser_selector(j){var a=j.toLowerCase(),e=function(b){return a.indexOf(b)>-1},k="gecko",l="webkit",i="safari",d=document.getElementsByTagName("html")[0],f=[(!(/opera|webtv/i.test(a))&&/msie\s(\d)/.test(a))?("ie ie"+RegExp.$1):e("firefox/2")?k+" ff2":e("firefox/3")?k+" ff3":e("gecko/")?k:/opera(\s|\/)(\d+)/.test(a)?"opera opera"+RegExp.$2:e("konqueror")?"konqueror":e("chrome")?l+" chrome":e("applewebkit/")?l+" "+i+(/version\/(\d+)/.test(a)?" "+i+RegExp.$1:""):e("mozilla/")?k:"",e("j2me")?"mobile":e("iphone")?"iphone":e("ipod")?"ipod":e("mac")?"mac":e("darwin")?"mac":e("webtv")?"webtv":e("win")?"win":e("freebsd")?"freebsd":(e("x11")||e("linux"))?"linux":"","js"];c=f.join(" ");d.className+=" "+c;return c}css_browser_selector(navigator.userAgent);