Inner HTML in Firefox

In the IE6 I can use Javascript to get the innerHTML   ie       element.innerHTML

But in Firefox nothing is returned.  What javascript will return the innerHTML or the HTML of the entire page please?
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I think this is what you were after:

IE method to switch to source view:

iHTML = getDocument().body.innerHTML;
getDocument().body.innerText = iHTML;

Mozilla method to switch to source view:

var html = document.createTextNode(getDocument().body.innerHTML);
getDocument().body.innerHTML = "";

IE method to switch back to regular view:

iText = getDocument().body.innerText;
getDocument().body.innerHTML = iText;

Mozilla method to switch back to regular view:

var html = getDocument().body.ownerDocument.createRange();
getDocument().body.innerHTML = html.toString();

All of which can be found here:

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This will work fine in both IE and Firefox.
var bodyElement = document.getElementsByTagName('html')[0].innerHTML;

Use document.getElementsByTagName('tag name') or document.getElementById('elements id') to access DOM element correctly.
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