Scroll Height in FireFox

I have the following line of code:

document.getElementById("apDiv1").style.height = document.body.scrollHeight + 'px';

This works in IE, Safari, Chrome but not in FF.  In FF it returns just the visible portion of the page, not the total height, including the scrolling portion.

I see all sorts of people having this issue and some saying that it is related to the content on the page, but I can't seem to figure out what to fix to fix it.  Is there a better way to get the scrollHeight that isn't impacted?

If not, I can post a link up, there is a ton of code so it will not be too straight forward.
LVL 9
pmessanaAsked:
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HagayMandelCommented:
Try use: document.getElementById("apDiv1").style.height = document.body.offsetHeight+ 'px';
0
pmessanaAuthor Commented:
Nope, that breaks IE and doesn't fix FF.
0
HagayMandelCommented:
Different approach:

function checkHeight(){
if( window.innerHeight && window.scrollMaxY ) {
var pageHeight = window.innerHeight + window.scrollMaxY;
} else if( document.body.scrollHeight > document.body.offsetHeight ) {
var pageHeight = document.body.scrollHeight;
} else {
var pageHeight = document.body.offsetHeight + document.body.offsetTop;
}
document.getElementById("apDiv1").style.height = pageHeight+'px';
}
</script>

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pmessanaAuthor Commented:
Bingo!  that worked.

Still not sure why the other one didn't work but now that I have that nifty function I am moving on.
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