You could probably do a random home page with Javascript.
Use the following code for your "index.html" page.
< html >
<head>
<script type="text/_javascript">
<!--
function RandomPage(){
loadPage[0] = "http://www.mydomain.com/index1.htm";
loadPage[1] = "http://www.mydomain.com/index2.htm";
loadPage[2] = "http://www.mydomain.com/index3.htm";
index = Math.floor(Math.random() * loadPage.length);
document.location = loadPage[index];
}
//-->
</script>
</head>
<body onLoad="setTimeout(RandomPage()', 5000)">
<h2>Prepare to be redirected!</h2>
<p>This page is a time delay redirect!</p>
</body>
</html>
Change the setTimeout time to "0" for an instant redirect.
If you want it to alternate everyother time exactly you''ll have to use a serverside script like php (my favorite)
[edit on 3-3-2005 by dbates]