[PennylessZ28]

They are everywhere on the internet.

Your image code:

<img src="$headerimage" border="0" alt="$vboptions[bbtitle]" />

Put this in your phpinclude_start

$totalheaderimages = X; // change to the number of header images you have
$randomindex = rand(1, $totalheaderimages);
$headerimage = "images/random/header$randomindex.gif"; // change to the path of your images

You would images header01 header02 etc