1<?xml version="1.0" standalone="yes"?> 2<smil> 3 <body> 4 <!-- The SMIL <switch> element will process the 5 first child element which tests true and skip 6 past all others. --> 7 <switch> 8 9 <!-- The system-required attribute tests to see if 10 the user agent supports SVG. If true, then 11 render the file drawing.svg. --> 12 <ref system-required="http://www.w3.org/Graphics/SVG/svg-19990412.dtd" type="image/svg" src="drawing.svg"/> 13 14 <!-- Else, render the alternate image. --> 15 <img src="alternate_image.jpg"/> 16 </switch> 17 </body> 18</smil> 19
