[jQuery] XML questions

I understand how to load a full XML file, but how do you load a
certain child by itself at once?
<?xml version="1.0" encoding="UTF-8"?>
<tiles>
<tile>
<information>Lorem ipsum</information>
</tile>
<tile>
<information>lorem ipsum</information>
</tile>
</tiles>
What would I need to do to access the first child of tiles excluding
the second?
Thanks