src/UIHandler/BrowserGUI/welcome.xml

<Widgets xmlns='http://ttcn.ericsson.se/protocolModules/xtdp/xtdl'>
  <window>
    <hbox orientation='horizontal'>

    <htmlcode flex='1.900000' id="12312312341234">
      <value>&lt;iframe src="welcome.html" height="613px" style="width:100%;" /&gt;</value>
    </htmlcode>
    <label flex='0.100000' value=' '/>
    <textbox flex='1.000000' id='textbox_PROGRESSBAR' multiline='true' rows='33.0' readonly='true' disabled='false' focusafterchange='bottom' value='' >
       <externaldata element='progressBarHistory' source='UIHandler'>
            <params>
            </params>
       </externaldata>
    </textbox>
    </hbox>
  </window>
</Widgets>