<mediaobjectco>
<imageobjectco>
<areaspec units="calspair">
  <areaset id="oneway" coords="">
    <area id="oneway1" coords="300 400"/>
    <area id="oneway2" coords="325 340"/>
  </areaset>
  <area id="myhouse" coords="425 590"/>
</areaspec>
<imageobject>
<imagedata fileref="http://maps.example.com/EARTH?USA?MA?01007"/>
</imageobject>
</imageobjectco>
</mediaobjectco>