Classic ASP Loop Through XML

I have a XML payload as follows

<tsResponse>
 <sites>
  <site id="site-id"  name="site1-name" contentUrl="site1-content-url"  /> 
   <projects>
    <project id="project1-id" name="project1-name"/>
    <project id="project2-id" name="project2-name"/>
   </projects>
  </site>
  <site id="site2-id" name="site2-name" contentUrl="site2-content-url" /> 
   <projects>
    <project id="project3-id" name="project3-name"/>
    <project id="project4-id" name="project4-name"/>
   </projects>
  </site>
 </sites>
</tsResponse>

I can loop through each site, collecting each site ID, name and contentURL as I go along with the following

Set oXML = Server.CreateObject("Microsoft.XMLDOM")
oXML.LoadXML(postResponse) ' sXML is a variable containing the content of your XML file

For Each oNode In oXML.SelectNodes("/tsResponse/sites/site")
    sID = oNode.GetAttribute("id")
    sName = oNode.GetAttribute("name")
    sContentURL = oNode.GetAttribute("contentUrl")
Next
Set oXML = Nothing

However how do I pick up each project ID and name within each site? Would I need another For Loop within the existing one or is that too inefficient? How do I loop through where a particular attribute = X?