<![CDATA[
<object id="myobj1">
<param name="image" value="some value 1" />
</object>
<object id="myobj2">
<param name="image" value="some value 2" />
</object>
<object id="myobj3">
<param name="image" value="some value 3" />
</object>
<script>
alert(document.getElementById('myobj1').getElementsByTagName('param').length);
</script>
]]>
In the above example, the alert value should be 1. In IE (6 & 7) the value is 3