Well, I'll give you all I know. O went to my account and clicked on "View Source". This is what apeared. I don't know what it means though.
<?php
Header("Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0");
Header("Expires: Thu, 19 Nov 1981 08:52:00 GMT");
Header("Pragma: no-cache");
Header("Content-Type: image/gif");
// Header info, forces no cache and image type of GIF
$dir = "sigs" ; // Define the subdirectory to where we store the images..
srand((double)microtime()*1000000); // Set a random seed up
$i = 0; // Set our counter to 0
$dirHandle = opendir($dir); // Open the images directory
while(($im = readdir($dirHandle))) // Read in image filenames
{
if($im != ".." && $im != ".") // Don't read in the 2 directories ".." and "."
{
$image[$i] = $im; // Add that image filename to the array
$i++; // Increment our counter
}
}
closedir($dirHandle); // Close the directory handle
$n = rand(0,(count($image)-1)); // Create a random number from 0 to the size of the array
if(!readfile($dir."/".$image[$n])) // Read in a file and output it to the output buffer..
readfile($dir."/error/error.gif"); // If we can't for some reason use the error.gif file in the error directory
?>