I have the following structure of my website:
<html>
  <iframe>
    <iframe>
    </iframe>
  </iframe>
<html>
I am prgramming the part of the most inner iframe. Now I want to determine the available height of the browser window (starting under the menubar and ending before possible toolbars). 
I have IE9 and tried somthing like:
window.innerHeight
(result undefined) and
window.parent.document.body.clientHeight 
(not the height I expected).
How do I get the height? Thanx in advance.
 
     
     
    