function css_browser_selector(k){var b=k.toLowerCase(),a=function(a){return b.indexOf(a)>-1},d="gecko",g="webkit",h="safari",f="opera",e="mobile",j=document.documentElement,i=[!/opera|webtv/i.test(b)&&/msie\s(\d)/.test(b)?"ie ie"+RegExp.$1:a("firefox/2")?d+" ff2":a("firefox/3.5")?d+" ff3 ff3_5":a("firefox/3.6")?d+" ff3 ff3_6":a("firefox/3")?d+" ff3":a("gecko/")?d:a("opera")?f+(/version\/(\d+)/.test(b)?" "+f+RegExp.$1:/opera(\s|\/)(\d+)/.test(b)?" "+f+RegExp.$2:""):a("konqueror")?"konqueror":a("blackberry")?e+" blackberry":a("android")?e+" android":a("chrome")?g+" chrome":a("iron")?g+" iron":a("applewebkit/")?g+" "+h+(/version\/(\d+)/.test(b)?" "+h+RegExp.$1:""):a("mozilla/")?d:"",a("j2me")?e+" j2me":a("iphone")?e+" iphone":a("ipod")?e+" ipod":a("ipad")?e+" ipad":a("mac")?"mac":a("darwin")?"mac":a("webtv")?"webtv":a("win")?"win"+(a("windows nt 6.0")?" vista":""):a("freebsd")?"freebsd":a("x11")||a("linux")?"linux":"","js"];c=i.join(" ");j.className+=" "+c;return c}css_browser_selector(navigator.userAgent)