修改键

EventUtil.addHandler(oDiv,'click',function(event){
        event = EventUtil.getEvent(event);
        var keys = [];
        if (event.shiftKey)
        {
            keys.push('shift');
        }
        if (event.ctrlKey)
        {
            keys.push('ctrl');
        }
        if (event.altKey)
        {
            keys.push('alt');
        }
        alert( keys );
    });