试一下新博客

主要是代码

    function topnavMore(e) {        var hidList = document.getElementById("topnav_hidlist");        hidList.style.display = hidList.style.display == "block" ? "none" : "block";        hidList.style.left = e.offsetLeft - 7 + "px";        e.blur();        return false;    }    document.body.onclick = function (event) {        event = event || window.event;        var target = event.target || event.srcElement;        if (target.id != "topnav_btnmove")            document.getElementById("topnav_hidlist").style.display = "none";    };