Random Image Load

Hi, Can you help at all please.
I am looking for a script whereby a new client testimonial will load into the page each time the page is opened.
It doesn't need to tween between other testimonials it just m=needs to load a new random message each time.

Many thanks in advance.

PHP:

Code:

---

<?php
$message = array("Welcome to my site!", "Hello World.", "Wassup?");
echo $message[rand(0, count($message)-1)];
?>

---

JS:

Code:

---

<script type="text/javascript">
var messages = ["Welcome to my site!", "Hello World.", "Wassup?"];
alert(messages[Math.floor(Math.random()*messages.length)]);
</script>

---

Thanks, but not quite what I had in mind.

The random message will actually be within the website screen itslef and will be a testimonial. Probably as a image.

So use the php one. Or does your server not support PHP?