title: Jade: dynamic image url
body: <p>I'm trying to set an image url in jade...</p>
  
  <p>I have this: <code>img(src = 'http://192.168.1.8:8081')</code></p>
  
  <p>I need to change 192.168.1.8 automatically with the server address...</p>
  
  <p>For example if I connect to my server from office, my url should become <code>img(src = 'http://myPUBLICserveraddress:8081')</code></p>
  
  <p>How can I do this?</p>
  
  <p>Thanks</p>