Shorthand cross-browser code for binding events to elements e.g. document.getElementById('#foo').on('click', function () { alert('hi!'); });

shorthand-event-bind.js

Element.prototype.on = function (evnt, func) {
	if (this.addEventListener)  // W3C DOM
	    this.addEventListener(evnt, func, false);
	else if (this.attachEvent) { // IE DOM
	     var r = this.attachEvent("on"+evnt, func);
		 return r;
	}
}