title: Javascript in Wicket 1.5
body: <p>im looking for the Wicket 1.5 Way of doing the following tasks:</p>
  
  <ol>
  <li>Add a external .js File to header of the Page from a Panel.</li>
  <li>Add a <code>&lt;script&gt;...&lt;/script&gt;</code> Tag at Bottom of Page from a Panel</li>
  <li>Add some Javascript to the onLoad Event of the Body tag</li>
  </ol>
  
  <p>There are lots of examples how to do this in Wicket 1.2 and 1.3 but these API are gone. 
  Any good Wicket 1.5 Articles aboutJavascript/Ajax would be great.</p>