Function mid

js/mui.event.js:56–58

(obj)

	};
	//简单的wrap对象_mid
	var mid = function(obj) {
		return obj && (obj._mid || (obj._mid = _mid++));
	};
	//事件委托对象绑定的事件回调列表
	var delegateFns = {};
	//返回事件委托的wrap事件回调