[Javascript] innerwidth

[J. Lester Novros II]

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
-- 
Since 1998, a federal judge ordered a breakup, an appeals court threw out that
order, and a new judge took responsibility; yet even with 2 courts finding that
m$ violated the Antitrust Act, no remedy has been put into effect.    cNet News
http://open.denhaag.nu                                   http://www.denhaag.org