JavaScript - Handy getEvent() Function

gistfile1.js

// This function SHOULD be called directly by an event listener (see example).
// Works in Chrome, Firefox, MSIE, Opera and Safari.
window.getEvent = function() {
	var event = getEvent.caller.arguments[0];
	return event ? event : window.event;
}

//
// Example
//
function onClick() {
	var event = getEvent();
	console.log( event.type ); // click
}
document.onclick = onClick;

//
// Alternative (without the use of getEvent)
//
function onClick( event ) {
	event = event ? event : window.event;
	console.log( event.type ); // click
}
document.onclick = onClick;