<svg xmlns="http://www.w3.org/2000/svg"
     xmlns:xlink="http://www.w3.org/1999/xlink"
     class="reftest-wait"
     onload="setTimeAndSnapshot(2.5, false)">
  <script xlink:href="smil-util.js" type="text/javascript"/>
  <rect x="15" y="15" width="200" height="20" fill="blue">
    <animate attributeName="height" calcMode="discrete" 
             additive="replace" accumulate="sum"
             from="20" to="100" repeatCount="2" 
             begin="0s" dur="1s" fill="freeze"/>
  </rect>
</svg>