TIMER:
Timer: 0

EXPECTED BEHAVIOR:
SET will begin at 2 seconds and have a duration of 2 seconds.
The img element has smile.jpg as its src when the page loads.
At 2 seconds, the src property is set to frown.jpg and frown will appear.
At 4 seconds, set ends, leaving smile visible indefinitely.
**Note: the set is a child element of the img so targetElement is not needed.

SAMPLE CODE:
<t:img id="img1" src="../images/smile.jpg" style="width:150; height:150">
<t:set attributeName="src" to="../images/frown.jpg" begin="2" dur="2" />
</t:img>

INFORMATION:
Copyright: Copyright 1998-2005 W3C (MIT, ERCIM, Keio), All Rights Reserved. See http://www.w3.org/Consortium/Legal/. Author: Debbie Newman, Microsoft
Version: 11/01/2000
Module: Set
Feature: attributeName=src, begin, dur
File Name: set_attName_src_nested_begin_dur.htm
Media Components: images/smile.jpg, images/frown.jpg