Selenium: Scroll to the bottom of a dynamically loading div

I’m trying to use selenium to scrape a webpage, and one of my elements dynamically loads a finite amount of content (IE not like twitter where you can just keep scrolling) when I scroll to the bottom of it.

Now I could simply do something like

var scrollbar = document.getElementsByClassName("dataTables_scrollBody")[0]
var last = -1;
var curr = scrollbar.scrollHeight;
while (curr != last) {
    last = curr;
    scrollbar.scrollTop = curr;
    curr = scrollbar.scrollHeight;
}

And in fact, that’s what I’m doing. However, the actual load operation on the data table takes so long that this script exits by the time the load finishes, meaning I only ever get halfway down the scrollbar.

What’s a good way to make sure that I’ve scrolled all the way to the bottom of the scroll bar?

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This question is different from Scroll to bottom of div? because I don’t have access to the raw HTML, and it’s different from Scroll Automatically to the Bottom of the Page because my page is dynamically loading content.

Perhaps I could force an ajax load of all the content in the panel, but I don’t know how to do that, and I don’t want to wade through miles of minified code to figure out how the page owner does it.