Accessing the top DOM from an iframe

[chestertb]

Hi all,
I'm trying to change the display of a div in the top document according from within an iframe.

I thought top.document.getElementById('this').style.display = 'none' would do the trick, but I get a 'Permission Denied' error.

How do I access and manipulate the DOM from within an iframe?

[chestertb]

I trawled through some stuff I did a few years back and found the solution to this problem...

If I put a javascript function called, say, myfunction() in the top page, then from the iFrame, I can call it with;
parent.myfunction()

myfunction() can then access the DOM from within its own page.