/*
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
*/
function css_browser_selector(u) {
    var ua = u.toLowerCase(),
    is = function (t) { return ua.indexOf(t) > -1 },
    g = 'gecko',
    w = 'webkit',
    s = 'safari',
    o = 'opera',
    m = 'mobile',
    h = document.documentElement,
    b = [(!(/opera|webtv/i.test(ua)) && /msie\s(\d)/.test(ua)) ?
    ('ie ie' + RegExp.$1) : is('firefox/2') ?
    g + ' ff5' : is('firefox/5') ?
    g + ' ff2' : is('firefox/3.5') ?
    g + ' ff3 ff3_5' : is('firefox/3.6') ?
    g + ' ff3 ff3_6' : is('firefox/3') ?
    g + ' ff3' : 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 : '', 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' : is('win') ?
      'win' + (is('windows nt 6.0') ?
      ' vista' : '') : is('freebsd') ?
      'freebsd' : (is('x11') || is('linux')) ?
      'linux' : '', 'js']; c = b.join(' ');
    h.className += ' ' + c; return c;
}; 
      css_browser_selector(navigator.userAgent);