关于下拉菜单的问题 - JEECMS官方论坛|开源java cms,jsp cms,jsp bbs

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1# 发表于:2012-11-27 01:22:42 IP:221.5.*.*

直接安装的模版，然后在页头导航栏里添加如下的代码，页面刷新后，下拉菜单先显示出来了。鼠标移到相应的菜单位置，再移开，下拉菜单才消失，请问这是什么原因呢？

<html dir="ltr">
    <head>
        <title></title>
        <script type="text/javascript">

var timeout         = 500;
var closetimer = 0;
var ddmenuitem      = 0;
var myfirst = 1;
// open hidden layer
function mopen(id)
{
// cancel close timer
mcancelclosetime();

// close old layer
if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';

// get new layer and show it
ddmenuitem = document.getElementById(id);
ddmenuitem.style.visibility = 'visible';

}
// close showed layer
function mclose()
{
if(ddmenuitem||mfirst)
{
ddmenuitem.style.visibility = 'hidden';
mfirst = 0;
}
}

// go close timer
function mclosetime()
{
closetimer = window.setTimeout(mclose, timeout);
}

// cancel close timer
function mcancelclosetime()
{
if(closetimer)
{
window.clearTimeout(closetimer);
closetimer = null;
}
}

// close layer when click-out
document.onclick = mclose;

</script>
    <link href="http://hhqxw.com/thirdparty/fckeditor/editor/plugins/Media/css/fck_media.css" rel="stylesheet" type="text/css" _fcktemp="true" /></head>
    <body>
        <div id="header" class="box">
        <div id="logo" class="page box">
        <div class="logo fl" onClick="window.location.href='${base}/'" style="width: 500px"> </div>
        </div>
        <div class="box"> </div>
        <div id="nav">
        <div id="menu" class="page box relative">
        <dl id="topmenu">
            <ul id="sddm" class="daohangt">
                <li class="menu_first"><a target="_self" onmouseover="mopen('m0')" onmouseout="mclosetime()" href="${base}/"><span>首页</span></a>
                <div id="m0" onmouseover="mcancelclosetime()" onmouseout="mclosetime()" style="margin-top: 8px"> </div>
                [@cms_channel id='1']</li>
                <li><a target="_self" onmouseover="mopen('m1')" onmouseout="mclosetime()" href="${tag_bean.url}"><span>${tag_bean.name}</span></a>
                <div id="m1" onmouseover="mcancelclosetime()" onmouseout="mclosetime()" style="margin-top: 8px">[@cms_channel_list parentId='1'] [#list tag_list as c] <a class="selected" target="_self" href="${c.url}"><span>${c.name}</span></a> [/#list] [/@cms_channel_list]</div>
                [/@cms_channel]</li>
            </ul>
        </dl>
        </div>
        </div>
        </div>
        <p> </p>
    </body>
</html>