javascript - JavaScript 中的可滚动菜单

标签 javascript menu scroll

我正在尝试用 JavaScript 创建一个可滚动菜单列表,并且正在遵循教程 http://javascript.internet.com/navigation/menu-scroll.html

但我的页面上没有显示任何内容。这是我尝试过的:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
        "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
    <title></title>
    <script type="text/javascript" src="ScrollMenu.js"></script>
    <SCRIPT LANGUAGE="JavaScript">

<!-- Original:  Randy Bennett (rbennett@thezone.net) -->
<!-- Web Site:  http://home.thezone.net/~rbennett/utility/javahead.htm -->

<!-- This script and many more are available free online at -->
<!-- The JavaScript Source!! http://javascript.internet.com -->

    <!-- Begin
    function buildMenu() {
        speed=35;
        topdistance=100;
        items=6;
        y=-50;
        ob=1;
        if (navigator.appName == "Netscape") {
            v=".top=",dS="document.",sD="";
        }
        else {
            v=".pixelTop=",dS="",sD=".style";
        }
    }

    function scrollItems() {
        if (ob<items+1) {
            objectX="object"+ob; y+=10; eval(dS + objectX + sD + v + y);
            if (y<topdistance) setTimeout("scrollItems()",speed);
            else y=-50, topdistance+=40, ob+=1, setTimeout("scrollItems()",speed);
        }
    }
// End -->
</SCRIPT>
</head>
<body onLoad="buildMenu(), scrollItems();">
    <a href="pic.html">hello</a>
    <a href="pic.html">Link 1!</a>
    <a href="pic.html">Link 1!</a>
    <a href="pic.html">Link 1!</a>
    <a href="pic.html">Link 1!</a>
    <a href="pic.html">Link 1!</a>
    <div id="object1" style="position:absolute; visibility:show; left:25px; top:-50px; z-index:2">
        <table border=1 width=150 bgcolor=80FFFF>
            <td>
                <a href="pic.html">Link 1!</a>
            </td>
        </table>
    </div>

    <div id="object2" style="position:absolute; visibility:show; left:25px; top:-50px; z-index:2">
        <table border=1 width=150 bgcolor=80FFFF>
            <td>
                <a href="pic.html">Link 2!</a>
            </td>
        </table>
    </div>

    <div id="object3" style="position:absolute; visibility:show; left:25px; top:-50px; z-index:2">
        <table border=1 width=150 bgcolor=80FFFF>
            <td>
                <a href="pic.html">Link 3!</a>
            </td>
        </table>
    </div>

    <div id="object4" style="position:absolute; visibility:show; left:25px; top:-50px; z-index:2">
        <table border=1 width=150 bgcolor=80FFFF>
            <td>
                <a href="pic.html">Link 4!</a>
            </td>
        </table>
    </div>

    <div id="object5" style="position:absolute; visibility:show; left:25px; top:-50px; z-index:2">
        <table border=1 width=150 bgcolor=80FFFF>
            <td>
                <a href="pic.html">Link 5!</a>
            </td>
        </table>
    </div>

    <div id="object6" style="position:absolute; visibility:show; left:25px; top:-50px; z-index:2">
        <table border=1 width=150 bgcolor=80FFFF>
            <td>
                <a href="pic.html">Link 6!</a>
            </td>
        </table>
    </div>

</body>
</html>

请问有什么帮助吗? :)

非常感谢 C.

最佳答案

将scrollItems()更改为此代码

function scrollItems() {
    if (ob<items+1) {
        objectX="object"+ob; y+=10; 
        document.getElementById(objectX).style.top = y + "px"
        if (y<topdistance) setTimeout("scrollItems()",speed);
        else y=-50, topdistance+=40, ob+=1, setTimeout("scrollItems()",speed);
    }
}

请看看它是否适合您

关于javascript - JavaScript 中的可滚动菜单,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/3280504/

相关文章:

javascript - 调用模块函数时注入(inject)的模块未定义

C++ Windows 添加选项到菜单

ios - ipad/iphone 上的 iFrame 模态滚动

javascript - body 垂直滚动适配?

javascript - 使用 jquery 导入另一个 html 文件后,下拉列表不起作用?

javascript - jQuery 元素点击

java - 运行 AsyncTask 时选项菜单保持打开状态

html - 如何使用 flexbox 使菜单居中

html - 修复具有重复背景 (CSS) 的网站上烦人的故障

javascript - 如何使用Ajax从本地JSON获取数据?