window.event快达到全浏览器支持了，以后使用就方便了_javascript技巧

test

/**
* 获得event对象
* @method getEvent
* @param {event} event (Optional)event对象 默认为调用位置所在宿主的event
* @param {element} element (Optional)任意element对象 element对象所在宿主的event
* @return {event} event对象
*/
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);
}
},

点我无效