title: How to ClickLink through WicketTester when links have the same wicket:id?
body: <p>On a Wicket page, I produce links with images via the following:</p>
  
  <pre><code>@Override
  protected void populateItem(ListItem&lt;Club&gt; item) 
  {
      ...
      Image joinButton = new Image("joinButton", joinResource);
      BookmarkablePageLink&lt;PageClubJoin&gt; joinLink = 
          new BookmarkablePageLink&lt;PageClubJoin&gt;("joinLink", PageClubJoin.class);
      joinLink.setParameter("club", item.getModelObject().getId());
      joinLink.add(joinButton);
      item.add(joinLink);
      ...
  </code></pre>
  
  <p>The rendered html produces a series of </p>
  
  <pre><code>&lt;a wicket:id="joinLink" ... /&gt;
  </code></pre>
  
  <p>elements.</p>
  
  <p>Now, how do I use WicketTester to ClickLink on, say, the second one? They all have the same wicket:id.</p>