Copyright: Copyright 1998-2005  W3C (MIT, ERCIM, Keio), All Rights Reserved.
See http://www.w3.org/Consortium/Legal/.
Author: Aaron Cohen (Intel), Jeff Boston (IBM)
           Version: May 1, 2001
            Module: Timing and Synchronization
           Feature: Interval logic and events
         File Name: interval_logic_and_events_2.smil
  Media Components: 2 QT, 1 JPG
 Expected Behavior: at t=0  smile appears.
                    at user click on smile video1 starts 5 seconds into the video.
                    at 5 seconds after user click on smile video1 disappears.
                    at t=20 smile disappears.
                    video2 never appears.
<smil xmlns="http://www.w3.org/2005/SMIL21/Language">
                <img id="smile" begin="0s" dur="20s"
                <par id="par1" begin="smile.activateEvent">
                        <video id="video1" begin="-5s" dur="10s"
                <video id="video2" begin="video1.begin" dur="1s"