Custom thumbnail on SlideJS plugin - slidesjs

Question

Is there a way to make the thumbnail images different from the fullsize images on a gallery using SlideJS plugin?
OUR SOLUTION:
We also didn't found anything on the documentation and solved it the following way:
Create a custom attribute on the HTML of the thumbnails gallery:
<div id="thumbnails">
<img src="/path/to/thumbnail.jpg" fullsize="/path/to/fullsize.jpg" />
<img src="/path/to/thumbnail.jpg" fullsize="/path/to/fullsize.jpg" />
<img src="/path/to/thumbnail.jpg" fullsize="/path/to/fullsize.jpg" />
[...]
</div>
<div id="slideshow"></div>
When some thumbnail gets clicked, make a copy of the thumbnails div HTML, switch the attribute values and set the slideshow:
$('#thumbnails img').click(function() {
// Get a copy of element instance of thumbnails div
var thumbnails = $(this).parent();
// On that copy, switch "img" attribute with "fullsize" attribute of each image
// and remove "fullsize" attribute for cleanliness
thumbnails.children('img').each(function() {
$(this).children().first().attr('src', $(this).children().first().attr('fullsize'));
$(this).children().first().removeAttr('fullsize');
});
// Set the switched HTML to the div that will hold the slideshow
$('#slideshow').html(thumbnails.html());
// Set the slideshow
$('#slideshow').slides({
start: 1,
preload: true,
generateNextPrev: true,
generatePagination: false,
effect: 'fade'
});
});