You might find this basic example useful:
HTML Code:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css">
*{margin:0px;padding:0px;}
#wrap{width:700px;margin:20px auto;border:1px solid #222;
font-family:Verdana,Tahoma,Arial;
font-size:10pt;
padding:0px;
}
ul{list-style-type:none;}
li{float:left;margin:0px;}
a{display:block;background:#9c0;text-align:center;
height:30px;width:100px;
line-height:30px;
text-decoration:none;
color:#222;
}
div{height:300px;padding:5px;}
#div1{z-index:100;display:block;}
a.active,a:hover,a:active{background:#9cf;}
h1{color:#930;}
</style>
<script type="text/javascript">
window.onload=function()
{
reset();
var display=document.getElementById('div1'); // The element you want to display by default
display.style.display='';
for(var i=0,li=document.getElementById('trig').getElementsByTagName('li');i<li.length;i++){
li[i].onmouseover=function(){
reset();
document.getElementById(this.getAttribute('rel')).style.display='';}}}
function reset()
{for(var i=1,divs=document.getElementsByTagName('div');i<divs.length;i++)
divs[i].style.display='none';
}
</script>
</head>
<body>
<div id="wrap">
<ul id="trig">
<li rel="div1"><a href="#" class="active">Link1</a></li>
<li rel="div2"><a href="#">Link2</a></li>
<li rel="div3"><a href="#">Link3</a></li>
<li rel="div4"><a href="#">Link4</a></li>
<li rel="div5"><a href="#">Link5</a></li>
<li rel="div6"><a href="#">Link6</a></li>
<li rel="div7"><a href="#">Link7</a></li>
</ul>
<div id="div1">
<h1>Contents of Div1</h1>
</div>
<div id="div2">
<h1>Contents of Div2</h1>
</div>
<div id="div3">
<h1>Contents of Div3</h1>
</div>
<div id="div4">
<h1>Contents of Div4</h1>
</div>
<div id="div5">
<h1>Contents of Div5</h1>
</div>
<div id="div6">
<h1>Contents of Div6</h1>
</div>
<div id="div7">
<h1>Contents of Div7</h1>
</div>
</div>
</body>
</html>
What's important with the script is the rel attribute in the li tag which denotes to the id of the divs you want to display.
Hope that keeps you going.
Bookmarks