Window's hight can be reduced (IE6 only)

When clicking the "100" button, the scrollbar shall appear.

Test codes:
<window id="t" title="sizing test" contentStyle="overflow:auto;background:blue" width="250px">
<button label="100" onClick='t.height = "100px"'/>
<button label="200" onClick='t.height = "200px"'/>
<button label="300" onClick='t.height = "300px"'/>
<div height="100px">abc</div>
</window>