All pages display messages using a standard feedback component.
div id = "centerContent" class = "content center">    
  <div id = "module wrap">    
  <h1 class = "[type]">    
     <wicket:message key = "[ breadcrumbtextkey ]" />    
  </h1>
    
  <h3 class = "help">    
    <wicket:message key = "[helptextkey]" />    
  </h3>
  
  <div wicket:id = "errorMessages"> </div>    
   [ rest of page content here ]    
    
  </div>   
</div>