javascript clearTimeout isn't working from a child page
<p>These are the relavent lines.</p>

<pre><code>// In the parent page I set the timer and attach its handle to the window
window.warnTo = window.setTimeout("WarnTimeout();", 20000);

// If I clear the timer in the same page it works great
window.clearTimeout(window.warnTO);

// In the child page launched with window.open, 
// I try to clear the timer and the timer still fires
window.opener.clearTimeout(window.opener.warnTO);
</code></pre>

<p>All variables appear to be set and window.opener appears to be the parent window.
I'm stumped.</p>
