Here is a bit of php that sits on top of your html that will put a random image into your page. It is not as complicated as you think and most of the work is available if you Google php. No program will do exactly what you want. I must admit that even though creating forms and doing something with the data is easy with php. Using Form Builder is even easier. So it is with VSD. But it is fun playing with alternate methods.
This was to rotate a random image of a painting in a picture frame the image variable is $image
This goes in the html where the image is to be displayed <img src="<?php echo $image;?>"
You add a refresh of say 10 seconds in a meta statement that reloads the page and a new image at random is selected. You can insert php into the html. Normally the page has to have a php extention unless you use a htaccess statement to process any php found.
<?php
// Directory to read images from
$dir = "C:/wamp/www/Las_Site/photos/";
$count = count(glob($dir . "*"));
$filenames = glob( "$dir*" );
// get random of count
reset:
$x=0;
$x=rand(0,$count-1);
echo $x;
$image=$filenames[$x];
echo $image;
$len=strlen($image);
$image=substr($image,27,$len);
$tmb=substr($image,0,5);
if($tmb=="thumb")goto reset;
$image="http://localhost/Las_Site/photos/".$image;
?>
The Guy from OZ