addEventListener-polyfill.js �ێ;�U �� <�U //addEventListener polyfill 1.0 / Eirik Backer / MIT Licence (function(win, doc){ if(win.addEventListener)return; //No need to polyfill function docHijack(p){var old = doc[p];doc[p] = function(v){return addListen(old(v))}} function addEvent(on, fn, self){ return (self = this).attachEvent('on' + on, function(e){ var e = e || win.event; e.preventDefault = e.
![addEventListener polyfill for IE6+](https://cdn-ak-scissors.b.st-hatena.com/image/square/1ef26f6cb4349557952890dbe3e567f7f98dc151/height=288;version=1;width=512/https%3A%2F%2Fgithub.githubassets.com%2Fassets%2Fgist-og-image-54fd7dc0713e.png)