Hint: Avoid LAYER, IFRAME!

IE4 ignores LAYER tags. Nav4 doesn't support IFRAMEs. Use named, positioned DIVs and SPANs instead to position content.

Nav4 only: 
<LAYER NAME="foo"></LAYER>

Nav4 and IE4: 
<STYLE>#foo {position:absolute}
</STYLE>
<DIV ID="foo"></DIV>

Speaker Notes