window.event is about to be supported by all browsers, and it will be convenient to use in the future_javascript skills

test

/**
* Get the event object
* @method getEvent
* @param {event} event (Optional)The event object defaults to the event of the host where the calling location is located
* @param {element} element (Optional) Any element object The event of the host where the element object is located
* @return {event} event object
*/
getEvent: function(event, element) {
if (event) {
return event;
} else if (element) {
if (element.document) {return element.document.parentWindow.event; }
if ( element.parentWindow) {return element.parentWindow.event; }
}

if (window.event) {
return window.event;
} else {
var f = arguments.callee;
do {
if (/Event/.test(f.arguments[0])) {return f.arguments[0]; }
} while (f = f.caller) ;
}
},

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