flipped website effect for April Fools day on badassjs.com

gistfile1.js

// Original version
(function(){function s(v){document.documentElement.style[['','webkit','Moz','O','ms'].filter(function(p){return p+'Transform' in document.documentElement.style})[0]+'Transform']=v}if (!localStorage||!localStorage.flipped&&location.href!="http://badassjs.com/post/20294238453/webkit-js-yes-it-has-finally-happened-browser"){s('rotate(180deg)');document.links[0].onclick=function(){s('none');document.body.scrollTop=0;this.onclick=null;localStorage&&(localStorage.flipped=1);return !1}}})()

// Somewhat prettier version
(function() {
  function s(v) {
    document.documentElement.style[
      ['','webkit','Moz','O','ms'].filter(function(p){ 
         return p + 'Transform' in document.documentElement.style 
       })[0]+'Transform'
    ] = v
  }

  if (!localStorage || !localStorage.flipped) {
    s('rotate(180deg)');
    document.links[0].onclick = function() {
      s('none');
      document.body.scrollTop = 0;
      this.onclick = null;
      localStorage && (localStorage.flipped = 1);
      return !1
    }
  }
})()