title: Get a subdomain of a URL using ColdFusion
body: <p>How can I get the subdomain of a URL using Coldfusion?</p>
  
  <p>For example, say I had the following URL:</p>
  
  <p><a href="http://support.foo.com" rel="nofollow">http://support.foo.com</a></p>
  
  <p>How could I get 'support'?  </p>
  
  <p>Is there a built in function to do this?</p>