Compound Documents

• Different XML vocabularies can be mixed by using XML namespaces.
• Can mix SVG with XHTML, MathML, etc.
• Uniform object model throughout document
• Only available in Mozilla SVG

  <doc xmlns:html="http://www.w3.org/1999/xhtml"
       xmlns:svg="http://www.w3.org/2000/svg" >
    <html:button onclick="getElementById('A').r.baseVal.value-=5;">
      Decrease radius
    </html:button>
    <html:button onclick="getElementById('A').r.baseVal.value+=5;">
      Increase radius
    </html:button>
    <html:button onclick="alert(getElementById('A').r.baseVal.value);">
      Show radius
    </html:button>
    <html:br/>

    <svg:svg  width="12cm" height="12cm">
      <svg:g ... >
        <svg:circle id="A" ... />
        <svg:circle ... />
      <svg:circle ... />
    </svg:svg>
  </doc>