data binding in HTML

Is it possible to do 'nested' binding?
What I'm trying to do is list customers grouped by region.
Do I need to redefine how the XML is formed?

here's the xml:

<customers>
<region>
<title>here</title>
<contacts>
<contact>
<name>Joe Blogs</name>
<phone>555 1234</phone>
</contact>
<contact>
...
</contact>
</contacts>
</region>
<region>
<title>there</title>
<contacts>
...

here's the html (I thought would do it):

<xml id="xml_list" src="customers.xml"></xml>

<table datasrc="#xml_list">
<tr><td><span datafld="title"></span></td></tr>
<tr><td><span datafld="name"></span></td></tr>
</table>