[Javascript] innerwidth

[Andrew Dunn]

I have tried this code but it says "innerHeight is undefined", I forgot to
mention that this window is a frame would this make any difference?

Thanks.

-----Original Message-----
From: J. Lester Novros II [mailto:lester at denhaag.org] 
Sent: Friday, 24 May 2002 12:05 PM
To: javascript at LaTech.edu
Subject: Re: [Javascript] innerwidth


Dear Andrew,

On 05/24/2002 03:09 AM, Andrew Dunn wrote:
> Hi,
> I have a loop as follows, which scrolls to the end of the page slowly:
> 
> function startScrolling ()
> {
>   	window.scrollBy(1,0);

This statement would scroll the page horizontally; 'scrollBy(0, 1);' would 
scroll vertically.

> When the browser gets to the end of the page I want it to go back to 
> the beginning, but I can't figure out how to do it. I thought about 
> using innerWidth and a counter (i) but I can't get the innerWidth to 
> work: here is a link to the page:

Try doing it this way:

function startScrolling()
{
    window.scrollBy(0, 1);

    if ((innerHeight + pageYOffset) < document.body.offsetHeight)
       setTimeout ('startScrolling()', 60);
    else
       window.scrollTo(0, 0);
}

'pageYOffset' returns the amount that the page has been scrolled vertically,

i.e. the distance between the document top and the top of the canvas a.k.a. 
client area; 'innerHeight' is the height of the canvas.

Hope this helps.

l8R lES
-- 
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