Callback on last page?

Hello

At the moment I have a CSS selector…

div.entry:last-of-type {
background: none;
}

…this will be applied to the last ‘entry’ div, which changes as more pages load and more ‘entry’ divs are visible. This isn’t ideal. I only want it to apply to the last post on the page (or load).

Is there a way to pass another callback once you’re on the last page, instead of just after each new page loads?

Thanks

http://wordpress.org/extend/plugins/infinite-scroll/