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EventListener Polyfill

Is IE8 your new IE6? Level the playing field with polyfills.

This script polyfills addEventListener, removeEventListener, and dispatchEvent. It is less than half a kilobyte minified and gzipped.

addEventListener

addEventListener registers a single event listener on a single target.

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//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.preventDefault  || function(){e.returnValue = false}
			e.stopPropagation = e.stopPropagation || function(){e.cancelBubble = true}

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