[flexcoders] Select XML subset

[markgoldin_2000]

I have an element based XML. How can I get a subset of this data 
where one of the elements value matches some var?

subdivisions>
  <id>1</id>
  <name>22ND STREET YARD</name>
  <division_id>37</division_id>
</subdivisions>
<subdivisions>
  <id>2</id>
  <name>59TH - 65TH ST. I/L</name>
  <division_id>43</division_id>
</subdivisions>
<subdivisions>
  <id>3</id>
  <name>59TH - NARRAGANSETT I/L</name>
  <division_id>43</division_id>
</subdivisions>

I would want to get subset with division_id = 43.

Thanks for help.