What are the properties of IFrame in Netscape 6?

[JasonXie]

I know Netscape6 now can support IFrame but ignoes the layer.
But I don't know the properties of IFrame in Netscape 6.

The syntax in IE5 to get the content of an IFrame is the below:
temp = document.frames['myIFrame'].document.body.innerHTML

I tried to convert it to suit the Netscape 6 but failed.
What I did is the following:
temp = document.getElementById("myIFrame&quot.document.body.innerHTML

Is there anyone can help me to correct the javascipt above ?

(note:
I imported the external HTML files to myIFrame:
For IE:
document.frames['myIFrame'].document.location="myfile.html"
For N6:
document.getElementById("myIFrame&quot.src="myfile.html"

They work fine.
)