How to determine page height once you've added elements?

[blaine]

Hello,

I've been fighting with trying to determing the page height after I
have added a new elements to the page with javascript (ie
body.appendChild( newNODE ) );

The following code will determin the initial page height, but doesn't
seem to work once I've added elements to the page. Is there a method
that I can use to find that page height or even when it changes? I
thought to use window.onresize, however, that does not trigger..

if (self.innerWidth)
{
frameWidth = self.innerWidth;
frameHeight = self.innerHeight;
}
else if (document.documentElement &&
document.documentElement.clientWidth)
{
frameWidth = document.documentElement.clientWidth;
frameHeight = document.documentElement.clientHeight;
}
else if (document.body)
{
frameWidth = document.body.clientWidth;
frameHeight = document.body.clientHeight;
}

Thanks,
Blaine