Getting ScrollHeight Of Dynamically Created Iframe

Jul 23, 2005

There seems to be some strange behaviour when trying to get the
scrollHeight and scrollTop of an iframe in IE6.

I have tried several ways of getting these values when the iframe is
written into the html. The following return the correct values in IE6,
where the iframe's id is 'f':

f.document.body.scrollHeight
f.document.body.scrollTop
window.frames['f'].document.body.scrollHeight
window.frames['f'].document.body.scrollTop
document.frames('f').document.body.scrollHeight
document.frames('f').document.body.scrollTop

The following give a strange value for scrollHeight (definitely not
the length of the contents of the iframe) and scrollTop is always 0:

document.getElementById('f').document.body.scrollH eight
document.getElementById('f').document.body.scrollT op
document.all.f.document.body.scrollHeight
document.all.f.document.body.scrollTop

When I dynamically create the iframe, using myFrame =
document.createElement('IFRAME'), I get the same strange values as
above when I do this:

myFrame.document.body.scrollHeight
myFrame.document.body.scrollTop

However this works as correctly in Opera 7. I find this all very
confusing. Can anybody shed light onto how I might get the correct
values in IE6 when using the createElement() method?

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If I do this:

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the iframe gets created but the 'name' attribute is not added under IE
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How can I add a 'name' attribute to an iframe so that IE 6 sees it?

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[Code]...

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