firefox window.event

http://www.handandaily.com

 /*firefox window.event*/
function __firefox()
{
    HTMLElement.prototype.__defineGetter__("runtimeStyle", __element_style);
    window.constructor.prototype.__defineGetter__("event", __window_event);
    Event.prototype.__defineGetter__("srcElement", __event_srcElement);
}

function __element_style()
{
    return this.style;
}

function __window_event()
{
    return __window_event_constructor();
}

function __event_srcElement()
{
    return this.target;
}
function __window_event_constructor()
{
    if(document.all)
    {
        return window.event;
    }
    var _caller = __window_event_constructor.caller;
    while(_caller!=null){
        var _argument = _caller.arguments[0];
        if(_argument){
            var _temp = _argument.constructor;
            if(_temp.toString().indexOf("Event")!=-1)
            {
                return _argument;
            }
        }
        _caller = _caller.caller;
    }
    return null;
}
if(window.addEventListener)
{
    __firefox();
}
/*end firefox.event*/

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