Copyright: Copyright 1998-2005  W3C (MIT, ERCIM, Keio), All Rights Reserved.
See http://www.w3.org/Consortium/Legal/.
Author: Muriel Jourdan (Muriel.Jourdan@ERCIMlpes.fr)
Version: Apr. 3, 2000, v1
Module: SMIL Timing & Sync Module
Feature: begin attribute and Negative Delay
File Name: Negative_Delay4.smil
Media Components: 2 JPG
Expected Behavior: smile begin to be shown from t=3s to 8s.
frown begin to be shown from t=0s to 4s.
<t:par >
<t:img style="width:100;height:100" id="image1" src="../images/smile.jpg"  dur="5s" begin="3s" />
<t:img style="width:100;height:100" id="image2" src="../images/frown.jpg"
begin="image1.begin-6s" dur="7s" />
</t:par>