Is it possible to add an extra class (specifically "lazy") to all listview items on page 1 ONLY?

So that the first page list items contains the classes "catItemImage lazy"

while listview items on all paginated pages (page 2,3,4...) only contain "catItemImage"

Of course I would like this to be implemented on both category and tag pages :)

if you add in the top of you template code some like:
$actualPage = $this->pagination->pagesCurrent;

you get the actual page, so, with this, you can use some like

<div id="k2Container" class="<?php if($actualPage==1) ?>lazy<?php endif;?>">

Thanks @JaviMata

It works, I just needed to add the colon (see below)

<?php if($actualPage==1): ?>lazy <?php endif; ?>

For anyone else interested in this solution, make sure to implement the code on the category_item.php override file :)

;)