<?xml version="1.0"?>  
<xbl:bindings xmlns:xbl="http://www.mozilla.org/xbl" xmlns:other="http://www.example.org/">
  <xbl:binding id="test">
    <xbl:resources>
      <other:stylesheet src="015.css"/>
    </xbl:resources>
  </xbl:binding>
</xbl:bindings>