AutoScroller: seamless scrolling?
June 24, 2004 by Marja Ribbers-de Vroed


Can I make the AutoScroller scroll seamlessly, without the 'gap' at the end of the scroller content?


A DHTML scroller is not really scrolling. What is happening is that a layer under another layer is being moved below the upper layer's clip region. Content in the layer below that falls outside of the clip area is hidden as a result, and the appearance is as if the content was 'scrolling'. And obviously that moving layer with the actual content can only be in one place at a time.

For the AutoScroller this means that the content layer will only be repositioned at the bottom of the upper layer's clip region again when all content has moved/scrolled by. And then the upward movement can start all over again.

A seamless scrolling effect can be achieved by using more than one content layer and making them take turns in the scrolling movement. But AutoScroller is just a very simple, basic scroller and thus doesn't support that.
Scroller Genie however (= commercial extension: is far more advanced and does support seamless scrolling.

Marja Ribbers-de Vroed

Marja Ribbers-de VroedWell, what's there to tell?

I worked as a software engineer for a well-known Dutch software company for about 10 years. But then I decided I did not want to work there anymore.
Since then, I've been working with my husband in our own company.

I "discovered" web development early 2000, and I soon found out that I could actually create my own extra (DHTML) features in Dreamweaver by building custom extensions.
My first extension was Cross-browser AutoScroller, but I've developed several other ones since then.

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