    <!--             Copyright: Copyright 1998-2001 W3C (MIT, INRIA, Keio), All Rights Reserved.
    See http://www.w3.org/Consortium/Legal/.
    Author: Geoff Freed/WGBH NCAM
                    Version: ver. 1; April 5, 2001
                     Module: Media Object Module
                    Feature: readIndex attribute
                  File Name: mediaAccessibility.smil
           Media Components: 3 JPG, 1 WAV
          Expected Behavior: an assistive device (such as a screen reader) will
                             announce alt/title/longdesc in the following order:
                               1.  carvideo
                               2.  scvadvt
                               3.  scvlogo
                               4.  caraudio
    -->
    <smil xmlns="http://www.w3.org/2001/SMIL20/Language">
      <head>
        <layout type="text/smil-basic-layout">
           <region id="videoregion" top="0px" left="5px" height="240px" width="290px"/>
           <region id="img1region" top="195px" left="5px" height="60px" width="225px"/>
          <region id="img2mregion" top="60px" left="295px" height="50px" width="230px"/>
        </layout>
      </head>
       <body>
        <par>
         <video id="carvideo" src="../video/car.jpg" region="videoregion"
                alt="illustration of relativistic time dilation and length contraction"
                title="car video" longdesc="carvideodesc.html" readIndex="1"/>
         <audio id="caraudio" src="../sounds/caraudio.wav"
                alt="car main audio track"
                title="car main audio track"/>
         <img id="scvlogo" src="../images/scvlogo.jpg" region="img2mregion"
                alt="sugar-coated vegetable administration logo"
                title="logo" longdesc="scvlogodesc.html" readIndex="3"/>
         <animation id="scvadvt" src="../images/scvadvt.jpg" region="img1region"
                alt="advertisement for sugar-coated vegetables"
                title="advertisement" longdesc="scvadvtdesc.html" readIndex="2"/>
        </par>
      </body>
    </smil>