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