Copyright: Copyright 1998-2005  W3C (MIT, ERCIM, Keio), All Rights Reserved.
See http://www.w3.org/Consortium/Legal/.
Author: Warner ten Kate (warner.ten.kate@philips.com), modified by Erik Hodge, RealNetworks
           Version: Mar 26, 2001, v2
            Module: SMIL Structure Module
           Feature: profiling: systemRequired on <smil> element generally
         File Name: Basic_General_systemRequired.smil
  Media Components: 3 JPG
 Expected Behavior: If the TimeManipulations module is not supported, nothing is shown.
                    Otherwise, a sequence of colored boxes is shown using the
                    <brush> element if the player supports BrushMedia, otherwise
                    the frown image is displayed.
<smil xmlns="http://www.w3.org/2005/SMIL21/Language"
      systemRequired="HostLanguage+TimeManipulations" >
         <region id="colorbox" top="0px" left="0px" height="240px" width="320px" />
         <seq systemRequired="BrushMedia">
            <brush dur="5s" color="#0000FF" region="colorbox"/>
            <brush dur="5s" color="#00FF00" region="colorbox"/>
            <brush dur="5s" color="#FF0000" region="colorbox"/>
            <img dur="5s" src="../images/frown.jpg"  region="colorbox"/>