@xelawho
I have been banging away at this over an hour now

)
And,
YES, that is what I am exploring now.
Code:
$captions = file($data_file); // pulled from CSV
<script>
var caption_array = '<?php echo trim($captions[VAL]); ?>';
etc...
Have you any suggestions how I would best pass the array key via the opening thumbnail div?
<div class=change id=tn_THUMBname>thumb(s)</div>
My first thought would be to add the number on the end of the id val and do a substr thing [not sure of js equiv]
Annnnnd, then I presume I would need to do a document.write ?
Would it have to be inside the parent div?
not dumb - just new ;]
thanks