Scrollable menu in JavaScript
I am trying to create a scrollable menu list in JavaScript and I am following a tutorial http://javascript.internet.com/navigation/menu-scroll.html
But nothing appears on my page. This is what I have tried:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
开发者_如何学编程<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>
Any help please?? :)
THanks so much C.
Change scrollItems() To this code
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);
}
}
See please if it works fine with you
Changing to Kronass's code is good. I actually got the code working as well, but s/he bet me to it.
You should also note, that your body onload should not have a comma in it, but a semicolon.
i.e. you have:
<body onLoad="buildMenu(), scrollItems();">
Which should be
<body onLoad="buildMenu(); scrollItems();">
In your HTML style, you should have
visibility: visible;
NOT
visibility: show;
The reason that the original code doesn't work, is that it is VERY old. (in Internet terms)
加载中,请稍侯......
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