This article describes the method of implementing multi-option switching navigation menu by JS. Share it for your reference. The specific implementation method is as follows:
The code copy is as follows:
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>Multiple option toggle navigation menu</title>
</head>
<style type="text/css">
#dNavBar{
background-color:#ffffff;
}
#dNavBar li{
list-style-type:none;
float:left;
width:84px;
height:28px;
line-height:28px;
font-size:12px;
color:#FFFFFF;
border:1px solid #ffffff;
background:#86C2FF;
text-align:center;
display:block;
cursor:pointer;
}
#subMenu{
background:#99cc66;
width:500px;
border-left:1px solid #ffffff;
border-right:1px solid #ffffff;
height:29px;
line-height:29px;
color:#FFFFFF;
font-size:12px;
padding-left:10px;
}
body {
margin: 0px;
}
a:link,a:visited {
color: #FFFFFF;
text-decoration: none;
}
a:hover{
color: #FFFFFF;
text-decoration: none;
}
</style>
<script language="javascript">
function ShowMenu()
{
var barCTT=document.getElementByIdx_x("dNavBar")
var liArr=barCTT.getElementsByTagName_r("li")
var links=new Array()
links[0]="<a href='#'>Current location: Home page"
links[1]="<a href='#'>Project 1</a> | <a href='#'>Project 2</a> | <a href='#'>Project 3</a> | <a href='#'>Project 4</a>"
links[2]="<a href='#'>Project 1</a> | <a href='#'>Project 2</a> | <a href='#'>Project 3</a>"
links[3]="<a href='#'>Project 1</a> | <a href='#'>Project 2</a> | <a href='#'>Project 3</a> | <a href='#'>Project 4</a> | <a href='#'>Project 5</a>"
links[4]="<a href='#'>Project 1</a> | <a href='#'>Project 2</a>"
links[5]="<a href='#'>Project 1</a> | <a href='#'>Project 2</a> | <a href='#'>Project 3</a>"
links[6]="<a href='#'>Project 1</a> | <a href='#'>Project 2</a>"
links[7]="<a href='#'>Project 1</a> | <a href='#'>Project 2</a>"
links[8]="<a href='#'>Project 1</a> | <a href='#'>Project 2</a>"
links[9]="<a href='#'>Project 1</a> | <a href='#'>Project 2</a>"
links[10]="<a href='#'>Project 1</a>| <a href='#'>Project 2</a>"
links[11]="<a href='#'>Project 1</a> | <a href='#'>Project 2</a>"
links[12]="<a href='#'>Project 1</a> | <a href='#'>Project 2</a>"
for (i=0;i<liArr.length;i++)
{
liArr[i].onclick=function()
{
selectThis(this,liArr,links)
}
}
}
function selectThis(indexObj, allLi, infoArr)
{
var index=0;
for (i=0;i<allLi.length;i++)
{
allLi[i].style.border="1px solid #ffffff";
allLi[i].style.backgroundColor="#86C2FF";
allLi[i].style.height="28px";
if (indexObj==allLi[i])
{
index=i;
}
}
indexObj.style.borderBottom="0px solid #666688";
indexObj.style.backgroundColor="#99cc66";
indexObj.style.height="31px";
document.getElementByIdx_x("subMenu").innerHTML=infoArr[index];
}
</script>
<body onLoad="ShowMenu()">
<div id="dNavBar" style="float:none; width:560px;"><li>Home</li><li>Entertainment Express</li><li>Music World</li><li>FLASH</li>
</div>
<div id="subMenu">Site Affairs Announcement</div>
</body>
</html>
I hope this article will be helpful to everyone's JavaScript programming.