IFRAME scroller reverse direction

[marcemig]

1) Script Title:
IFRAME Scroller script

2) Script URL (on DD):
http://www.dynamicdrive.com/dynamicindex2/iframe-scroller.htm

Script URL (my suggestion)
http://www.escolaviva.com.br/external_arrow.htm

3) Describe problem:

I think "IFRAME Scroller" is a very nice script, but it lacks the possibility to reverse the scrolling direction. I added a very simple code that can be seen in the URL http://www.escolaviva.com.br/external_arrow.htm, and it works nicely, but only in IE, not in Firefox or Opera, though the script itself continues to work. It can be seen after the <!-- Begin modification --> tag in the code. Can anyone fix this?

Thanks in advance,

Marcelo Mig

[marcemig]

Just complementing my post, to reverse the direction of the scroller is very useful to read a missed topic without having to wait the whole scroll again.

The piece of code that works only in IE is simply this:
<img src="images/arrow_updown89.gif" onMouseOver="javascript:scrollspeed=-scrollspeed">

Why not in Opera or Firefox?

[blm126]

Well, if you change onmouseOver="scrollspeed=0" to onmouseOver="scrollspeed=-1" it works in Opera(only browser I tested). As for the why only IE question. IE is a complete idiot. That code should not do that. It should just pause the scroller.

[marcemig]

Hi blm126,

I didn't change onmouseOver="scrollspeed=0" to onmouseOver="scrollspeed=-1. I added a small fixed image so that when I put the mouse over the scroll, it pauses, as usual, and when I put the mouse over the image, the scroll reverses.

I have just discovered the problem: it is about the <div width=100%> tag I used: IE rendered it in a manner that it didn't overlap the image (but that was nice!), and Firefox and Opera in a different way.

If you want to see it working nicely in all browsers, please check this URL:
http://www.escolaviva.com.br/external_arrow_nice.htm

I think it is an easy and good improvement for the script.