Defines a set of material to be selected for processing if none of the sel:when elements within the containing sel:select element are selected.
<?xml version="1.0" encoding="UTF-8"?>
<html xmlns="http://www.w3.org/2002/06/xhtml2"
xmlns:sel="http://www.w3.org/2004/06/diselect">
<head>
<title>sel:select</title>
</head>
<body>
<sel:select>
<sel:when expr="device:policy-value('supports.client.framework')='true'">
<p>This device supports the Client Framework 1.</p>
</sel:when>
<sel:otherwise>
<p>This device does not support the Client Framework 1.</p>
</sel:otherwise>
</sel:select>
</body>
</html>