title: Wicket: How to create a dynamic url (e.g. for images)
body: <p>I am just wondering how I can specify a dynamic url for an image src in apache wicket.
  I just thought about something like 
  new StaticResourceReference("images/buttons/" + filename+ ".gif") 
  but I cannot find such a class or apporoach. There seem to be ugly workarounds, like the ones mentioned <a href="https://stackoverflow.com/questions/1512510/wicket-dynamic-image-url">here</a>.</p>
  
  <p>I really can't imagine that a popular framework like wicket doesn't have an easy support for dynamic relative/absolute urls (also think about external ressources/urls..)</p>
  
  <p>Did I missed something?
  Thank you!</p>